FM / bin

/usr/bin

Name	Size	Mode	Actions
aa-enabled	18744	0755	edit dl rm
aa-exec	18744	0755	edit dl rm
aa-features-abi	18736	0755	edit dl rm
acpidbg	1622	0755	edit dl rm
acpi_listen	14920	0755	edit dl rm
add-apt-repository	16422	0755	edit dl rm
addpart	14720	0755	edit dl rm
apport-bug	2322	0755	edit dl rm
apport-cli	13625	0755	edit dl rm
apport-collect	2322	0755	edit dl rm
apport-unpack	3790	0755	edit dl rm
appstreamcli	141544	0755	edit dl rm
apropos	48416	0755	edit dl rm
apt	18824	0755	edit dl rm
apt-add-repository	16422	0755	edit dl rm
apt-cache	88544	0755	edit dl rm
apt-cdrom	27104	0755	edit dl rm
apt-config	31120	0755	edit dl rm
apt-extracttemplates	23008	0755	edit dl rm
apt-ftparchive	227816	0755	edit dl rm
apt-get	51680	0755	edit dl rm
apt-key	28664	0755	edit dl rm
apt-mark	55776	0755	edit dl rm
apt-sortpkgs	51608	0755	edit dl rm
arch	35336	0755	edit dl rm
automat-visualize3	984	0755	edit dl rm
awk	739840	0755	edit dl rm
b2sum	55816	0755	edit dl rm
base32	39432	0755	edit dl rm
base64	39432	0755	edit dl rm
basename	35336	0755	edit dl rm
basenc	47624	0755	edit dl rm
bash	1446024	0755	edit dl rm
bashbug	6988	0755	edit dl rm
bc	93000	0755	edit dl rm
boltctl	125792	0755	edit dl rm
bpftrace	2250576	0755	edit dl rm
bpftrace-aotrt	1009016	0755	edit dl rm
btrfs	1025280	0755	edit dl rm
btrfs-convert	590128	0755	edit dl rm
btrfs-find-root	532784	0755	edit dl rm
btrfs-image	565552	0755	edit dl rm
btrfs-map-logical	532784	0755	edit dl rm
btrfs-select-super	528688	0755	edit dl rm
btrfsck	1025280	0755	edit dl rm
btrfstune	557360	0755	edit dl rm
busctl	96864	0755	edit dl rm
busybox	2124608	0755	edit dl rm
byobu	8703	0755	edit dl rm
byobu-config	996	0755	edit dl rm
byobu-ctrl-a	4774	0755	edit dl rm
byobu-disable	1295	0755	edit dl rm
byobu-disable-prompt	1341	0755	edit dl rm
byobu-enable	1182	0755	edit dl rm
byobu-enable-prompt	1453	0755	edit dl rm
byobu-export	1421	0755	edit dl rm
byobu-janitor	7209	0755	edit dl rm
byobu-keybindings	1506	0755	edit dl rm
byobu-launch	3329	0755	edit dl rm
byobu-launcher	1910	0755	edit dl rm
byobu-launcher-install	2529	0755	edit dl rm
byobu-launcher-uninstall	1561	0755	edit dl rm
byobu-layout	3348	0755	edit dl rm
byobu-prompt	1156	0755	edit dl rm
byobu-quiet	1410	0755	edit dl rm
byobu-reconnect-sockets	3298	0755	edit dl rm
byobu-screen	8703	0755	edit dl rm
byobu-select-backend	1452	0755	edit dl rm
byobu-select-profile	5180	0755	edit dl rm
byobu-select-session	1012	0755	edit dl rm
byobu-shell	1697	0755	edit dl rm
byobu-silent	1306	0755	edit dl rm
byobu-status	6015	0755	edit dl rm
byobu-status-detail	1207	0755	edit dl rm
byobu-tmux	8703	0755	edit dl rm
byobu-ugraph	4667	0755	edit dl rm
byobu-ulevel	11996	0755	edit dl rm
captoinfo	92584	0755	edit dl rm
cat	39384	0755	edit dl rm
catman	31504	0755	edit dl rm
certbot	958	0755	edit dl rm
cftp3	224	0755	edit dl rm
cgi-fcgi	18584	0755	edit dl rm
chage	72184	2755	edit dl rm
chardet	221	0755	edit dl rm
chardetect	221	0755	edit dl rm
chattr	14656	0755	edit dl rm
chcon	59912	0755	edit dl rm
chfn	72792	4755	edit dl rm
chgrp	59912	0755	edit dl rm
chmod	55816	0755	edit dl rm
choom	22912	0755	edit dl rm
chown	59912	0755	edit dl rm
chronyc	93392	0755	edit dl rm
chrt	31104	0755	edit dl rm
chsh	44760	4755	edit dl rm
chvt	14712	0755	edit dl rm
cifsiostat	27080	0755	edit dl rm
ckbcomp	150674	0755	edit dl rm
ckeygen3	227	0755	edit dl rm
cksum	104984	0755	edit dl rm
clear	14656	0755	edit dl rm
clear_console	14568	0755	edit dl rm
cloud-id	966	0755	edit dl rm
cloud-init	970	0755	edit dl rm
cloud-init-per	2108	0755	edit dl rm
cmp	43408	0755	edit dl rm
codepage	14640	0755	edit dl rm
col	22920	0755	edit dl rm
col1	963	0755	edit dl rm
col2	963	0755	edit dl rm
col3	963	0755	edit dl rm
col4	963	0755	edit dl rm
col5	963	0755	edit dl rm
col6	963	0755	edit dl rm
col7	963	0755	edit dl rm
col8	963	0755	edit dl rm
col9	963	0755	edit dl rm
colcrt	14728	0755	edit dl rm
colrm	14728	0755	edit dl rm
column	39304	0755	edit dl rm
comm	39440	0755	edit dl rm
conch3	225	0755	edit dl rm
corelist	15375	0755	edit dl rm
cp	141848	0755	edit dl rm
cpan	8360	0755	edit dl rm
cpan5.38-x86_64-linux-gnu	8381	0755	edit dl rm
cpio	140928	0755	edit dl rm
cpupower	1622	0755	edit dl rm
crontab	39664	2755	edit dl rm
csplit	51720	0755	edit dl rm
ctail	960	0755	edit dl rm
ctstat	23200	0755	edit dl rm
curl	297288	0755	edit dl rm
cut	39432	0755	edit dl rm
cvtsudoers	328808	0755	edit dl rm
c_rehash	6841	0755	edit dl rm
dash	129784	0755	edit dl rm
date	109064	0755	edit dl rm
dbus-cleanup-sockets	14632	0755	edit dl rm
dbus-daemon	236176	0755	edit dl rm
dbus-monitor	26928	0755	edit dl rm
dbus-run-session	14640	0755	edit dl rm
dbus-send	31016	0755	edit dl rm
dbus-update-activation-environment	14632	0755	edit dl rm
dbus-uuidgen	14632	0755	edit dl rm
dbxtool	31024	0755	edit dl rm
dd	72232	0755	edit dl rm
deallocvt	14712	0755	edit dl rm
deb-systemd-helper	24358	0755	edit dl rm
deb-systemd-invoke	7135	0755	edit dl rm
debconf	2870	0755	edit dl rm
debconf-apt-progress	11846	0755	edit dl rm
debconf-communicate	623	0755	edit dl rm
debconf-copydb	1718	0755	edit dl rm
debconf-escape	668	0755	edit dl rm
debconf-set-selections	3216	0755	edit dl rm
debconf-show	1825	0755	edit dl rm
debian-distro-info	31696	0755	edit dl rm
delpart	14720	0755	edit dl rm
delv	46408	0755	edit dl rm
df	89168	0755	edit dl rm
dh_bash-completion	4527	0755	edit dl rm
dh_installxmlcatalogs	9444	0755	edit dl rm
diff	137776	0755	edit dl rm
diff3	59920	0755	edit dl rm
dig	154448	0755	edit dl rm
dir	142312	0755	edit dl rm
dircolors	47632	0755	edit dl rm
dirmngr	485136	0755	edit dl rm
dirmngr-client	56240	0755	edit dl rm
dirname	35208	0755	edit dl rm
distro-info	27536	0755	edit dl rm
dmesg	70288	0755	edit dl rm
dnsdomainname	22760	0755	edit dl rm
do-release-upgrade	10675	0755	edit dl rm
domainname	22760	0755	edit dl rm
dpkg	318176	0755	edit dl rm
dpkg-deb	146000	0755	edit dl rm
dpkg-divert	121416	0755	edit dl rm
dpkg-maintscript-helper	21205	0755	edit dl rm
dpkg-query	137792	0755	edit dl rm
dpkg-realpath	4185	0755	edit dl rm
dpkg-split	100896	0755	edit dl rm
dpkg-statoverride	51592	0755	edit dl rm
dpkg-trigger	43552	0755	edit dl rm
du	100872	0755	edit dl rm
dumpkeys	166760	0755	edit dl rm
eatmydata	2806	0755	edit dl rm
ec2metadata	8583	0755	edit dl rm
echo	35208	0755	edit dl rm
ed	59960	0755	edit dl rm
editor	279040	0755	edit dl rm
efibootdump	22840	0755	edit dl rm
efibootmgr	48832	0755	edit dl rm
egrep	41	0755	edit dl rm
eject	43240	0755	edit dl rm
enable-ec2-spot-hibernation	237	0755	edit dl rm
enc2xs	41947	0755	edit dl rm
encguess	3069	0755	edit dl rm
env	48072	0755	edit dl rm
envsubst	35200	0755	edit dl rm
eqn	192968	0755	edit dl rm
ex	4130640	0755	edit dl rm
expand	35360	0755	edit dl rm
expiry	27152	2755	edit dl rm
expr	43432	0755	edit dl rm
factor	64008	0755	edit dl rm
faillog	23168	0755	edit dl rm
fallocate	27008	0755	edit dl rm
false	26936	0755	edit dl rm
fgconsole	14712	0755	edit dl rm
fgrep	41	0755	edit dl rm
file	31336	0755	edit dl rm
finalrd	2112	0755	edit dl rm
find	204264	0755	edit dl rm
findmnt	69280	0755	edit dl rm
flock	23024	0755	edit dl rm
fmt	39432	0755	edit dl rm
fold	35336	0755	edit dl rm
free	27008	0755	edit dl rm
ftp	187288	0755	edit dl rm
funzip	26928	0755	edit dl rm
fuser	40288	0755	edit dl rm
fusermount	39296	4755	edit dl rm
fusermount3	39296	4755	edit dl rm
fwupdmgr	121136	0755	edit dl rm
fwupdtool	112944	0755	edit dl rm
gapplication	22920	0755	edit dl rm
gawk	739840	0755	edit dl rm
gawkbug	6903	0755	edit dl rm
gdbus	51592	0755	edit dl rm
geqn	192968	0755	edit dl rm
getconf	26992	0755	edit dl rm
getent	39648	0755	edit dl rm
getkeycodes	14712	0755	edit dl rm
getopt	22912	0755	edit dl rm
gettext	35200	0755	edit dl rm
gettext.sh	5188	0755	edit dl rm
ginstall-info	48376	0755	edit dl rm
gio	104856	0755	edit dl rm
gio-querymodules	18744	0755	edit dl rm
git	4066232	0755	edit dl rm
git-receive-pack	4066232	0755	edit dl rm
git-shell	639808	0755	edit dl rm
git-upload-archive	4066232	0755	edit dl rm
git-upload-pack	4066232	0755	edit dl rm
glib-compile-schemas	55608	0755	edit dl rm
gpasswd	76248	4755	edit dl rm
gpg	1147800	0755	edit dl rm
gpg-agent	366096	0755	edit dl rm
gpg-connect-agent	89400	0755	edit dl rm
gpg-wks-client	142712	0755	edit dl rm
gpgconf	118128	0755	edit dl rm
gpgparsemail	35200	0755	edit dl rm
gpgsm	513400	0755	edit dl rm
gpgsplit	27256	0755	edit dl rm
gpgtar	69456	0755	edit dl rm
gpgv	310416	0755	edit dl rm
gpic	200768	0755	edit dl rm
grep	186824	0755	edit dl rm
gresource	22840	0755	edit dl rm
groff	96776	0755	edit dl rm
grog	19195	0755	edit dl rm
grops	166456	0755	edit dl rm
grotty	121352	0755	edit dl rm
groups	35336	0755	edit dl rm
growpart	29895	0755	edit dl rm
grub-editenv	402600	0755	edit dl rm
grub-file	759688	0755	edit dl rm
grub-fstest	884040	0755	edit dl rm
grub-glue-efi	105352	0755	edit dl rm
grub-kbdcomp	1681	0755	edit dl rm
grub-menulst2cfg	85192	0755	edit dl rm
grub-mkfont	134600	0755	edit dl rm
grub-mkimage	386312	0755	edit dl rm
grub-mklayout	105704	0755	edit dl rm
grub-mknetdir	440088	0755	edit dl rm
grub-mkpasswd-pbkdf2	113992	0755	edit dl rm
grub-mkrelpath	266024	0755	edit dl rm
grub-mkrescue	1044312	0755	edit dl rm
grub-mkstandalone	522408	0755	edit dl rm
grub-mount	698584	0755	edit dl rm
grub-ntldr-img	39312	0755	edit dl rm
grub-render-label	768232	0755	edit dl rm
grub-script-check	129800	0755	edit dl rm
grub-syslinux2cfg	715480	0755	edit dl rm
gsettings	31032	0755	edit dl rm
gtbl	137704	0755	edit dl rm
gunzip	2346	0755	edit dl rm
gzexe	6480	0755	edit dl rm
gzip	93424	0755	edit dl rm
h2ph	29227	0755	edit dl rm
h2xs	60934	0755	edit dl rm
hardlink	47600	0755	edit dl rm
hd	47504	0755	edit dl rm
head	43528	0755	edit dl rm
helpztags	2514	0755	edit dl rm
hexdump	47504	0755	edit dl rm
hibagent	24473	0755	edit dl rm
hibinit-agent	18398	0755	edit dl rm
host	121672	0755	edit dl rm
hostid	35336	0755	edit dl rm
hostname	22760	0755	edit dl rm
hostnamectl	31184	0755	edit dl rm
htop	379216	0755	edit dl rm
hwe-support-status	11511	0755	edit dl rm
i386	27288	0755	edit dl rm
ibd2sdi	269048	0755	edit dl rm
iconv	68072	0755	edit dl rm
id	39432	0755	edit dl rm
inetutils-telnet	182120	0755	edit dl rm
info	247536	0755	edit dl rm
infobrowser	247536	0755	edit dl rm
infocmp	67968	0755	edit dl rm
infotocap	92584	0755	edit dl rm
innochecksum	175504	0755	edit dl rm
install	145944	0755	edit dl rm
install-info	48376	0755	edit dl rm
instmodsh	4373	0755	edit dl rm
ionice	18816	0755	edit dl rm
iostat	55744	0755	edit dl rm
ip	772920	0755	edit dl rm
ipcmk	22984	0755	edit dl rm
ipcrm	18816	0755	edit dl rm
ipcs	39296	0755	edit dl rm
iptables-xml	95176	0755	edit dl rm
ischroot	14824	0755	edit dl rm
iscsiadm	379320	0755	edit dl rm
join	51760	0755	edit dl rm
journalctl	80800	0755	edit dl rm
jq	30872	0755	edit dl rm
json-patch-jsondiff	1004	0755	edit dl rm
jsondiff	1004	0755	edit dl rm
jsonpatch	3859	0755	edit dl rm
jsonpointer	1838	0755	edit dl rm
jsonschema	213	0755	edit dl rm
json_pp	4992	0755	edit dl rm
kbdinfo	18808	0755	edit dl rm
kbd_mode	15016	0755	edit dl rm
kbxutil	64336	0755	edit dl rm
keep-one-running	3592	0755	edit dl rm
kernel-install	55984	0755	edit dl rm
kill	22912	0755	edit dl rm
killall	32096	0755	edit dl rm
kmod	174328	0755	edit dl rm
kmodsign	18888	0755	edit dl rm
landscape-sysinfo	646	0755	edit dl rm
last	35200	0755	edit dl rm
lastb	35200	0755	edit dl rm
lastlog	28456	0755	edit dl rm
lcf	7784	0755	edit dl rm
ld.so	236616	0755	edit dl rm
ldd	5382	0755	edit dl rm
less	194952	0755	edit dl rm
lessecho	14656	0755	edit dl rm
lessfile	9047	0755	edit dl rm
lesskey	24272	0755	edit dl rm
lesspipe	9047	0755	edit dl rm
letsencrypt	958	0755	edit dl rm
lexgrog	101896	0755	edit dl rm
libnetcfg	15778	0755	edit dl rm
link	35336	0755	edit dl rm
linux-boot-prober	1577	0755	edit dl rm
linux-check-removal	4090	0755	edit dl rm
linux-update-symlinks	6320	0755	edit dl rm
linux-version	2698	0755	edit dl rm
linux32	27288	0755	edit dl rm
linux64	27288	0755	edit dl rm
ln	55816	0755	edit dl rm
lnstat	23200	0755	edit dl rm
loadkeys	207768	0755	edit dl rm
loadunimap	35288	0755	edit dl rm
locale	50824	0755	edit dl rm
locale-check	14488	0755	edit dl rm
localectl	27080	0755	edit dl rm
localedef	326752	0755	edit dl rm
logger	39904	0755	edit dl rm
login	53056	0755	edit dl rm
loginctl	68176	0755	edit dl rm
logname	35336	0755	edit dl rm
look	18824	0755	edit dl rm
lowntfs-3g	121832	0755	edit dl rm
ls	142312	0755	edit dl rm
lsattr	14656	0755	edit dl rm
lsblk	149896	0755	edit dl rm
lsb_release	2651	0755	edit dl rm
lscpu	113032	0755	edit dl rm
lshw	980168	0755	edit dl rm
lsinitramfs	735	0755	edit dl rm
lsipc	51584	0755	edit dl rm
lslocks	31504	0755	edit dl rm
lslogins	51584	0755	edit dl rm
lsmem	39296	0755	edit dl rm
lsmod	174328	0755	edit dl rm
lsns	43400	0755	edit dl rm
lsof	175784	0755	edit dl rm
lspci	102512	0755	edit dl rm
lspgpot	1081	0755	edit dl rm
lspower	1207	0755	edit dl rm
lsusb	252432	0755	edit dl rm
lzcat	89008	0755	edit dl rm
lzcmp	7422	0755	edit dl rm
lzdiff	7422	0755	edit dl rm
lzegrep	10333	0755	edit dl rm
lzfgrep	10333	0755	edit dl rm
lzgrep	10333	0755	edit dl rm
lzless	1813	0755	edit dl rm
lzma	89008	0755	edit dl rm
lzmainfo	14720	0755	edit dl rm
lzmore	2190	0755	edit dl rm
mailmail3	227	0755	edit dl rm
man	128416	0755	edit dl rm
man-recode	36248	0755	edit dl rm
mandb	147120	0755	edit dl rm
manifest	1942	0755	edit dl rm
manpath	27424	0755	edit dl rm
mapscrn	31192	0755	edit dl rm
markdown-it	220	0755	edit dl rm
mawk	170768	0755	edit dl rm
mbim-network	11342	0755	edit dl rm
mbimcli	221944	0755	edit dl rm
mcookie	27080	0755	edit dl rm
md5sum	39336	0755	edit dl rm
md5sum.textutils	39336	0755	edit dl rm
mdig	51608	0755	edit dl rm
memhog	14768	0755	edit dl rm
mesg	14720	0755	edit dl rm
migrate-pubring-from-classic-gpg	3093	0755	edit dl rm
migratepages	14720	0755	edit dl rm
migspeed	14648	0755	edit dl rm
mkdir	76296	0755	edit dl rm
mkfifo	43528	0755	edit dl rm
mknod	43528	0755	edit dl rm
mksquashfs	293832	0755	edit dl rm
mktemp	35336	0755	edit dl rm
mk_modmap	16163	0755	edit dl rm
mmcli	280512	0755	edit dl rm
mokutil	60904	0755	edit dl rm
more	47496	0755	edit dl rm
mount	51584	4755	edit dl rm
mountpoint	18816	0755	edit dl rm
mpstat	51656	0755	edit dl rm
mt	72432	0755	edit dl rm
mt-gnu	72432	0755	edit dl rm
mtr	78080	0755	edit dl rm
mtr-packet	35120	0755	edit dl rm
mv	137752	0755	edit dl rm
myisamchk	6859272	0755	edit dl rm
myisamlog	6677032	0755	edit dl rm
myisampack	6707344	0755	edit dl rm
myisam_ftdump	6644832	0755	edit dl rm
mysql	6912408	0755	edit dl rm
mysqladmin	6750288	0755	edit dl rm
mysqlanalyze	6759152	0755	edit dl rm
mysqlbinlog	7076064	0755	edit dl rm
mysqlcheck	6759152	0755	edit dl rm
mysqldump	6838800	0755	edit dl rm
mysqldumpslow	7719	0755	edit dl rm
mysqld_multi	27367	0755	edit dl rm
mysqld_safe	29137	0755	edit dl rm
mysqlimport	6742272	0755	edit dl rm
mysqloptimize	6759152	0755	edit dl rm
mysqlpump	7158016	0755	edit dl rm
mysqlrepair	6759152	0755	edit dl rm
mysqlreport	39016	0755	edit dl rm
mysqlshow	6745040	0755	edit dl rm
mysqlslap	6759872	0755	edit dl rm
mysql_config_editor	160800	0755	edit dl rm
mysql_migrate_keyring	6805344	0755	edit dl rm
mysql_secure_installation	6730272	0755	edit dl rm
mysql_ssl_rsa_setup	207768	0755	edit dl rm
mysql_tzinfo_to_sql	76712	0755	edit dl rm
mysql_upgrade	6817920	0755	edit dl rm
my_print_defaults	175352	0755	edit dl rm
namei	22912	0755	edit dl rm
nano	279040	0755	edit dl rm
nawk	739840	0755	edit dl rm
nc	39560	0755	edit dl rm
nc.openbsd	39560	0755	edit dl rm
neqn	913	0755	edit dl rm
netaddr	959	0755	edit dl rm
netcat	39560	0755	edit dl rm
networkctl	125520	0755	edit dl rm
networkd-dispatcher	20362	0755	edit dl rm
newgrp	40664	4755	edit dl rm
NF	963	0755	edit dl rm
ngettext	35200	0755	edit dl rm
nice	35336	0755	edit dl rm
nisdomainname	22760	0755	edit dl rm
nl	39528	0755	edit dl rm
nohup	35240	0755	edit dl rm
nproc	35336	0755	edit dl rm
nroff	5718	0755	edit dl rm
nsenter	31336	0755	edit dl rm
nslookup	125768	0755	edit dl rm
nstat	31104	0755	edit dl rm
nsupdate	76344	0755	edit dl rm
ntfs-3g	162824	0755	edit dl rm
ntfs-3g.probe	14720	0755	edit dl rm
ntfscat	27008	0755	edit dl rm
ntfscluster	39304	0755	edit dl rm
ntfscmp	31104	0755	edit dl rm
ntfsdecrypt	43400	0755	edit dl rm
ntfsfallocate	27016	0755	edit dl rm
ntfsfix	35208	0755	edit dl rm
ntfsinfo	55688	0755	edit dl rm
ntfsls	28112	0755	edit dl rm
ntfsmove	31112	0755	edit dl rm
ntfsrecover	104832	0755	edit dl rm
ntfssecaudit	80752	0755	edit dl rm
ntfstruncate	26936	0755	edit dl rm
ntfsusermap	18736	0755	edit dl rm
ntfswipe	48032	0755	edit dl rm
numactl	36080	0755	edit dl rm
numastat	36416	0755	edit dl rm
numfmt	59944	0755	edit dl rm
od	72200	0755	edit dl rm
oem-getlogs	8504	0755	edit dl rm
on_ac_power	3788	0755	edit dl rm
openssl	1005368	0755	edit dl rm
openvt	23272	0755	edit dl rm
os-prober	4527	0755	edit dl rm
pager	194952	0755	edit dl rm
partx	63880	0755	edit dl rm
passwd	64152	4755	edit dl rm
paste	39336	0755	edit dl rm
pastebinit	16706	0755	edit dl rm
patch	186896	0755	edit dl rm
pathchk	35336	0755	edit dl rm
pbget	2569	0755	edit dl rm
pbput	2569	0755	edit dl rm
pbputs	2569	0755	edit dl rm
pdb3	69459	0755	edit dl rm
pdb3.12	69459	0755	edit dl rm
peekfd	14640	0755	edit dl rm
perf	1622	0755	edit dl rm
perl	4023408	0755	edit dl rm
perl5.38-x86_64-linux-gnu	14648	0755	edit dl rm
perl5.38.2	4023408	0755	edit dl rm
perlbug	45593	0755	edit dl rm
perldoc	125	0755	edit dl rm
perlivp	10867	0755	edit dl rm
perlthanks	45593	0755	edit dl rm
perror	1534392	0755	edit dl rm
pgrep	35296	0755	edit dl rm
phar	14885	0755	edit dl rm
phar.phar	14885	0755	edit dl rm
phar.phar7.4	14885	0755	edit dl rm
phar7.4	14885	0755	edit dl rm
phar7.4.phar	14885	0755	edit dl rm
php	4813936	0755	edit dl rm
php7.4	4813936	0755	edit dl rm
pic	200768	0755	edit dl rm
pico	279040	0755	edit dl rm
piconv	8360	0755	edit dl rm
pidof	26856	0755	edit dl rm
pidstat	51656	0755	edit dl rm
pidwait	35296	0755	edit dl rm
pinentry	60056	0755	edit dl rm
pinentry-curses	60056	0755	edit dl rm
ping	89800	0755	edit dl rm
ping4	89800	0755	edit dl rm
ping6	89800	0755	edit dl rm
pinky	39336	0755	edit dl rm
pkaction	18736	0755	edit dl rm
pkcheck	22832	0755	edit dl rm
pkcon	55608	0755	edit dl rm
pkill	35296	0755	edit dl rm
pkmon	22840	0755	edit dl rm
pkttyagent	22832	0755	edit dl rm
pl2pm	4536	0755	edit dl rm
pldd	22976	0755	edit dl rm
plymouth	47408	0755	edit dl rm
pmap	35224	0755	edit dl rm
pod2html	4041	0755	edit dl rm
pod2man	18898	0755	edit dl rm
pod2text	13112	0755	edit dl rm
pod2usage	4107	0755	edit dl rm
podchecker	3658	0755	edit dl rm
pollinate	8744	0755	edit dl rm
pr	72272	0755	edit dl rm
preconv	59880	0755	edit dl rm
printenv	35208	0755	edit dl rm
printf	55744	0755	edit dl rm
prlimit	27536	0755	edit dl rm
pro	1003	0755	edit dl rm
prove	13659	0755	edit dl rm
prtstat	18816	0755	edit dl rm
ps	146424	0755	edit dl rm
psfaddtable	22904	0755	edit dl rm
psfgettable	22904	0755	edit dl rm
psfstriptable	22904	0755	edit dl rm
psfxtable	22904	0755	edit dl rm
pslog	14640	0755	edit dl rm
pstree	36168	0755	edit dl rm
pstree.x11	36168	0755	edit dl rm
ptar	3566	0755	edit dl rm
ptardiff	2645	0755	edit dl rm
ptargrep	4395	0755	edit dl rm
ptx	55848	0755	edit dl rm
purge-old-kernels	1149	0755	edit dl rm
pwd	35336	0755	edit dl rm
pwdx	14720	0755	edit dl rm
py3clean	7816	0755	edit dl rm
py3compile	13314	0755	edit dl rm
py3versions	12816	0755	edit dl rm
pybabel	956	0755	edit dl rm
pybabel-python3	956	0755	edit dl rm
pydoc3	80	0755	edit dl rm
pydoc3.12	80	0755	edit dl rm
pygettext3	24224	0755	edit dl rm
pygettext3.12	24224	0755	edit dl rm
pygmentize	215	0755	edit dl rm
pyhtmlizer3	222	0755	edit dl rm
pyserial-miniterm	975	0755	edit dl rm
pyserial-ports	969	0755	edit dl rm
python3	8020928	0755	edit dl rm
python3.12	8020928	0755	edit dl rm
pzstd	707112	0755	edit dl rm
qmi-firmware-update	172128	0755	edit dl rm
qmi-network	16428	0755	edit dl rm
qmicli	600928	0755	edit dl rm
rbash	1446024	0755	edit dl rm
rdma	104976	0755	edit dl rm
readlink	43432	0755	edit dl rm
realpath	43432	0755	edit dl rm
red	89	0755	edit dl rm
rename.ul	22912	0755	edit dl rm
renice	14720	0755	edit dl rm
rescan-scsi-bus.sh	38964	0755	edit dl rm
reset	26944	0755	edit dl rm
resizecons	27096	0755	edit dl rm
resizepart	22912	0755	edit dl rm
resolvectl	162480	0755	edit dl rm
rev	14720	0755	edit dl rm
rgrep	30	0755	edit dl rm
rm	59912	0755	edit dl rm
rmdir	47528	0755	edit dl rm
rnano	279040	0755	edit dl rm
routel	1658	0755	edit dl rm
rrsync	12639	0755	edit dl rm
rsync	534680	0755	edit dl rm
rsync-ssl	5136	0755	edit dl rm
rtla	1622	0755	edit dl rm
rtstat	23200	0755	edit dl rm
run-one	3592	0755	edit dl rm
run-one-constantly	3592	0755	edit dl rm
run-one-until-failure	3592	0755	edit dl rm
run-one-until-success	3592	0755	edit dl rm
run-parts	27464	0755	edit dl rm
run-this-one	3592	0755	edit dl rm
runcon	35336	0755	edit dl rm
rview	4130640	0755	edit dl rm
rvim	4130640	0755	edit dl rm
sadf	391488	0755	edit dl rm
sar	140680	0755	edit dl rm
sar.sysstat	140680	0755	edit dl rm
savelog	10487	0755	edit dl rm
sbattach	23080	0755	edit dl rm
sbkeysync	35576	0755	edit dl rm
sbsiglist	14952	0755	edit dl rm
sbsign	35536	0755	edit dl rm
sbvarsign	23280	0755	edit dl rm
sbverify	31344	0755	edit dl rm
scalar	684992	0755	edit dl rm
scandeps	6623	0755	edit dl rm
scp	137816	0755	edit dl rm
screen	489720	0755	edit dl rm
screendump	14640	0755	edit dl rm
script	55680	0755	edit dl rm
scriptlive	43392	0755	edit dl rm
scriptreplay	35200	0755	edit dl rm
scsi_logging_level	8585	0755	edit dl rm
scsi_mandat	3602	0755	edit dl rm
scsi_readcap	1327	0755	edit dl rm
scsi_ready	1121	0755	edit dl rm
scsi_satl	3830	0755	edit dl rm
scsi_start	1285	0755	edit dl rm
scsi_stop	1474	0755	edit dl rm
scsi_temperature	936	0755	edit dl rm
sdiff	51600	0755	edit dl rm
sed	113224	0755	edit dl rm
select-editor	2450	0755	edit dl rm
sensible-browser	1583	0755	edit dl rm
sensible-editor	1556	0755	edit dl rm
sensible-pager	921	0755	edit dl rm
sensible-terminal	1176	0755	edit dl rm
seq	51720	0755	edit dl rm
setarch	27288	0755	edit dl rm
setfont	55768	0755	edit dl rm
setkeycodes	14712	0755	edit dl rm
setleds	18872	0755	edit dl rm
setlogcons	14712	0755	edit dl rm
setmetamode	14752	0755	edit dl rm
setpci	31112	0755	edit dl rm
setpriv	39304	0755	edit dl rm
setsid	14720	0755	edit dl rm
setterm	35200	0755	edit dl rm
setupcon	41025	0755	edit dl rm
sftp	154280	0755	edit dl rm
sg	40664	4755	edit dl rm
sginfo	77832	0755	edit dl rm
sgm_dd	35136	0755	edit dl rm
sgp_dd	47424	0755	edit dl rm
sg_bg_ctl	14856	0755	edit dl rm
sg_compare_and_write	27560	0755	edit dl rm
sg_copy_results	23856	0755	edit dl rm
sg_dd	55632	0755	edit dl rm
sg_decode_sense	15112	0755	edit dl rm
sg_emc_trespass	14648	0755	edit dl rm
sg_format	40296	0755	edit dl rm
sg_get_config	36224	0755	edit dl rm
sg_get_elem_status	27432	0755	edit dl rm
sg_get_lba_status	23496	0755	edit dl rm
sg_ident	14952	0755	edit dl rm
sg_inq	118384	0755	edit dl rm
sg_logs	150456	0755	edit dl rm
sg_luns	23336	0755	edit dl rm
sg_map	18744	0755	edit dl rm
sg_map26	27344	0755	edit dl rm
sg_modes	47184	0755	edit dl rm
sg_opcodes	35848	0755	edit dl rm
sg_persist	36944	0755	edit dl rm
sg_prevent	14856	0755	edit dl rm
sg_raw	27560	0755	edit dl rm
sg_rbuf	23272	0755	edit dl rm
sg_rdac	18744	0755	edit dl rm
sg_read	26944	0755	edit dl rm
sg_readcap	23336	0755	edit dl rm
sg_read_attr	37528	0755	edit dl rm
sg_read_block_limits	14888	0755	edit dl rm
sg_read_buffer	28224	0755	edit dl rm
sg_read_long	15048	0755	edit dl rm
sg_reassign	19112	0755	edit dl rm
sg_referrals	15016	0755	edit dl rm
sg_rep_pip	14920	0755	edit dl rm
sg_rep_zones	27440	0755	edit dl rm
sg_requests	23304	0755	edit dl rm
sg_reset	15016	0755	edit dl rm
sg_reset_wp	14952	0755	edit dl rm
sg_rmsn	14856	0755	edit dl rm
sg_rtpg	14952	0755	edit dl rm
sg_safte	23240	0755	edit dl rm
sg_sanitize	27656	0755	edit dl rm
sg_sat_identify	19176	0755	edit dl rm
sg_sat_phy_event	19464	0755	edit dl rm
sg_sat_read_gplog	19176	0755	edit dl rm
sg_sat_set_features	19144	0755	edit dl rm
sg_scan	18824	0755	edit dl rm
sg_seek	19336	0755	edit dl rm
sg_senddiag	27848	0755	edit dl rm
sg_ses	122848	0755	edit dl rm
sg_ses_microcode	28016	0755	edit dl rm
sg_start	19304	0755	edit dl rm
sg_stpg	23272	0755	edit dl rm
sg_stream_ctl	19144	0755	edit dl rm
sg_sync	15016	0755	edit dl rm
sg_test_rwbuf	19048	0755	edit dl rm
sg_timestamp	23376	0755	edit dl rm
sg_turs	27336	0755	edit dl rm
sg_unmap	23304	0755	edit dl rm
sg_verify	23464	0755	edit dl rm
sg_vpd	121264	0755	edit dl rm
sg_write_buffer	27888	0755	edit dl rm
sg_write_long	15112	0755	edit dl rm
sg_write_same	27592	0755	edit dl rm
sg_write_verify	27432	0755	edit dl rm
sg_write_x	56936	0755	edit dl rm
sg_wr_mode	23272	0755	edit dl rm
sg_xcopy	43336	0755	edit dl rm
sg_zone	15216	0755	edit dl rm
sh	129784	0755	edit dl rm
sha1sum	39336	0755	edit dl rm
sha224sum	39336	0755	edit dl rm
sha256sum	39336	0755	edit dl rm
sha384sum	39336	0755	edit dl rm
sha512sum	39336	0755	edit dl rm
shasum	9982	0755	edit dl rm
showconsolefont	18808	0755	edit dl rm
showkey	18808	0755	edit dl rm
shred	55816	0755	edit dl rm
shuf	47624	0755	edit dl rm
skill	27048	0755	edit dl rm
slabtop	22976	0755	edit dl rm
sleep	35336	0755	edit dl rm
slogin	846888	0755	edit dl rm
snap	22693016	0755	edit dl rm
snapctl	7943160	0755	edit dl rm
snapfuse	39144	0755	edit dl rm
snice	27048	0755	edit dl rm
soelim	35304	0755	edit dl rm
sort	105272	0755	edit dl rm
sos	612	0755	edit dl rm
sos-collector	1062	0755	edit dl rm
sosreport	1054	0755	edit dl rm
splain	19449	0755	edit dl rm
split	56256	0755	edit dl rm
splitfont	14640	0755	edit dl rm
sqfscat	151448	0755	edit dl rm
sqfstar	293832	0755	edit dl rm
ss	132168	0755	edit dl rm
ssh	846888	0755	edit dl rm
ssh-add	301488	0755	edit dl rm
ssh-agent	309688	2755	edit dl rm
ssh-argv0	1455	0755	edit dl rm
ssh-copy-id	13078	0755	edit dl rm
ssh-import-id	985	0755	edit dl rm
ssh-import-id-gh	785	0755	edit dl rm
ssh-import-id-lp	785	0755	edit dl rm
ssh-keygen	453056	0755	edit dl rm
ssh-keyscan	338368	0755	edit dl rm
stat	88592	0755	edit dl rm
static-sh	2124608	0755	edit dl rm
stdbuf	51720	0755	edit dl rm
strace	2087432	0755	edit dl rm
strace-log-merge	1821	0755	edit dl rm
streamzip	8061	0755	edit dl rm
stty	80408	0755	edit dl rm
su	55680	4755	edit dl rm
sudo	277936	4755	edit dl rm
sudoedit	277936	4755	edit dl rm
sudoreplay	98256	0755	edit dl rm
sum	35240	0755	edit dl rm
sync	35240	0755	edit dl rm
systemctl	1501304	0755	edit dl rm
systemd	100816	0755	edit dl rm
systemd-ac-power	14792	0755	edit dl rm
systemd-analyze	203624	0755	edit dl rm
systemd-ask-password	19024	0755	edit dl rm
systemd-cat	18896	0755	edit dl rm
systemd-cgls	23112	0755	edit dl rm
systemd-cgtop	39392	0755	edit dl rm
systemd-confext	55952	0755	edit dl rm
systemd-creds	43744	0755	edit dl rm
systemd-cryptenroll	72624	0755	edit dl rm
systemd-cryptsetup	80840	0755	edit dl rm
systemd-delta	27080	0755	edit dl rm
systemd-detect-virt	18888	0755	edit dl rm
systemd-escape	22984	0755	edit dl rm
systemd-firstboot	60232	0755	edit dl rm
systemd-hwdb	158456	0755	edit dl rm
systemd-id128	22984	0755	edit dl rm
systemd-inhibit	23008	0755	edit dl rm
systemd-machine-id-setup	19072	0755	edit dl rm
systemd-mount	52000	0755	edit dl rm
systemd-notify	27304	0755	edit dl rm
systemd-path	18888	0755	edit dl rm
systemd-repart	199912	0755	edit dl rm
systemd-run	68392	0755	edit dl rm
systemd-socket-activate	31176	0755	edit dl rm
systemd-stdio-bridge	22992	0755	edit dl rm
systemd-sysext	55952	0755	edit dl rm
systemd-sysusers	68224	0755	edit dl rm
systemd-tmpfiles	117448	0755	edit dl rm
systemd-tty-ask-password-agent	35272	0755	edit dl rm
systemd-umount	52000	0755	edit dl rm
tabs	18744	0755	edit dl rm
tac	39336	0755	edit dl rm
tail	64032	0755	edit dl rm
tapestat	27072	0755	edit dl rm
tar	440264	0755	edit dl rm
taskset	31104	0755	edit dl rm
tbl	137704	0755	edit dl rm
tclsh	14488	0755	edit dl rm
tclsh8.6	14488	0755	edit dl rm
tcpdump	1273976	0755	edit dl rm
tee	39432	0755	edit dl rm
telnet	182120	0755	edit dl rm
tempfile	14648	0755	edit dl rm
test	47552	0755	edit dl rm
tic	92584	0755	edit dl rm
time	27160	0755	edit dl rm
timedatectl	47560	0755	edit dl rm
timeout	39880	0755	edit dl rm
tkconch3	227	0755	edit dl rm
tload	22928	0755	edit dl rm
tmux	1102608	0755	edit dl rm
tnftp	187288	0755	edit dl rm
toe	22840	0755	edit dl rm
top	134864	0755	edit dl rm
touch	96776	0755	edit dl rm
tput	26968	0755	edit dl rm
tr	47624	0755	edit dl rm
trace-cmd	445856	0755	edit dl rm
tracepath	18584	0755	edit dl rm
trial3	219	0755	edit dl rm
troff	744056	0755	edit dl rm
true	26936	0755	edit dl rm
truncate	39432	0755	edit dl rm
tset	26944	0755	edit dl rm
tsort	47624	0755	edit dl rm
tty	35336	0755	edit dl rm
turbostat	1622	0755	edit dl rm
twist3	239	0755	edit dl rm
twistd3	220	0755	edit dl rm
tzselect	15378	0755	edit dl rm
ua	1003	0755	edit dl rm
ubuntu-advantage	1003	0755	edit dl rm
ubuntu-bug	2322	0755	edit dl rm
ubuntu-distro-info	27536	0755	edit dl rm
ubuntu-security-status	22783	0755	edit dl rm
ucf	41657	0755	edit dl rm
ucfq	19367	0755	edit dl rm
ucfr	11111	0755	edit dl rm
uclampset	31104	0755	edit dl rm
udevadm	1443632	0755	edit dl rm
udisksctl	63872	0755	edit dl rm
ul	22920	0755	edit dl rm
umount	39296	4755	edit dl rm
uname	35336	0755	edit dl rm
unattended-upgrade	99547	0755	edit dl rm
unattended-upgrades	99547	0755	edit dl rm
uncompress	2346	0755	edit dl rm
unexpand	39456	0755	edit dl rm
unicode_start	2772	0755	edit dl rm
unicode_stop	528	0755	edit dl rm
uniq	39432	0755	edit dl rm
unlink	35336	0755	edit dl rm
unlzma	89008	0755	edit dl rm
unmkinitramfs	3788	0755	edit dl rm
unshare	43624	0755	edit dl rm
unsquashfs	151448	0755	edit dl rm
unxz	89008	0755	edit dl rm
unzip	178608	0755	edit dl rm
unzipsfx	76208	0755	edit dl rm
unzstd	1022760	0755	edit dl rm
update-alternatives	59784	0755	edit dl rm
update-microcode-initrd	1174	0755	edit dl rm
update-mime-database	76112	0755	edit dl rm
uptime	14720	0755	edit dl rm
usb-devices	4944	0755	edit dl rm
usbhid-dump	31112	0755	edit dl rm
usbip	1622	0755	edit dl rm
usbipd	1622	0755	edit dl rm
usbreset	14640	0755	edit dl rm
users	35336	0755	edit dl rm
utmpdump	22912	0755	edit dl rm
uuidgen	18816	0755	edit dl rm
uuidparse	22912	0755	edit dl rm
varlinkctl	31176	0755	edit dl rm
vcs-run	6912	0755	edit dl rm
vdir	142312	0755	edit dl rm
VGAuthService	133672	0755	edit dl rm
vi	4130640	0755	edit dl rm
view	4130640	0755	edit dl rm
vigpg	2640	0755	edit dl rm
vim	4130640	0755	edit dl rm
vim.basic	4130640	0755	edit dl rm
vim.tiny	1736392	0755	edit dl rm
vimdiff	4130640	0755	edit dl rm
vimtutor	2154	0755	edit dl rm
vm-support	10066	0755	edit dl rm
vmhgfs-fuse	47848	0755	edit dl rm
vmstat	39712	0755	edit dl rm
vmtoolsd	76352	0755	edit dl rm
vmware-alias-import	43544	0755	edit dl rm
vmware-checkvm	14720	0755	edit dl rm
vmware-hgfsclient	14720	0755	edit dl rm
vmware-namespace-cmd	22840	0755	edit dl rm
vmware-rpctool	18744	0755	edit dl rm
vmware-toolbox-cmd	55904	0755	edit dl rm
vmware-vgauth-cmd	18744	0755	edit dl rm
vmware-vmblock-fuse	23328	0755	edit dl rm
vmware-xferlogs	33104	0755	edit dl rm
w	27008	0755	edit dl rm
wall	22912	0755	edit dl rm
watch	31584	0755	edit dl rm
watchgnupg	22840	0755	edit dl rm
wc	55824	0755	edit dl rm
wdctl	35224	0755	edit dl rm
wget	470032	0755	edit dl rm
whatis	48416	0755	edit dl rm
whereis	31576	0755	edit dl rm
which	1080	0755	edit dl rm
which.debianutils	1080	0755	edit dl rm
whiptail	30888	0755	edit dl rm
who	59928	0755	edit dl rm
whoami	35336	0755	edit dl rm
wifi-status	2107	0755	edit dl rm
write	22920	0755	edit dl rm
x86_64	27288	0755	edit dl rm
x86_energy_perf_policy	1622	0755	edit dl rm
xargs	63912	0755	edit dl rm
xauth	56280	0755	edit dl rm
xdg-user-dir	234	0755	edit dl rm
xdg-user-dirs-update	26856	0755	edit dl rm
xsubpp	5167	0755	edit dl rm
xxd	22816	0755	edit dl rm
xz	89008	0755	edit dl rm
xzcat	89008	0755	edit dl rm
xzcmp	7422	0755	edit dl rm
xzdiff	7422	0755	edit dl rm
xzegrep	10333	0755	edit dl rm
xzfgrep	10333	0755	edit dl rm
xzgrep	10333	0755	edit dl rm
xzless	1813	0755	edit dl rm
xzmore	2190	0755	edit dl rm
yes	35208	0755	edit dl rm
ypdomainname	22760	0755	edit dl rm
zcat	1984	0755	edit dl rm
zcmp	1678	0755	edit dl rm
zdiff	6447	0755	edit dl rm
zdump	31008	0755	edit dl rm
zegrep	29	0755	edit dl rm
zfgrep	29	0755	edit dl rm
zforce	2081	0755	edit dl rm
zgrep	8103	0755	edit dl rm
zipdetails	70193	0755	edit dl rm
zipgrep	2959	0755	edit dl rm
zipinfo	178608	0755	edit dl rm
zless	2206	0755	edit dl rm
zmore	1842	0755	edit dl rm
znew	4577	0755	edit dl rm
zstd	1022760	0755	edit dl rm
zstdcat	1022760	0755	edit dl rm
zstdgrep	3869	0755	edit dl rm
zstdless	197	0755	edit dl rm
zstdmt	1022760	0755	edit dl rm
[	55744	0755	edit dl rm

Edit: /usr/bin/unattended-upgrade (99547B)

#!/usr/bin/python3
# Copyright (c) 2005-2018 Canonical Ltd
#
# AUTHOR:
# Michael Vogt <mvo@ubuntu.com>
# Balint Reczey <rbalint@ubuntu.com>

# This file is part of unattended-upgrades
#
# unattended-upgrades is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as published
# by the Free Software Foundation; either version 2 of the License, or (at
# your option) any later version.
#
# unattended-upgrades is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with unattended-upgrades; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#

import atexit
import copy
import datetime
import errno
import email.charset
import fcntl
import fnmatch
import gettext
try:
    from gi.repository.Gio import NetworkMonitor
except ImportError:
    pass
import grp
import io
import locale
import logging
import logging.handlers
import re
import os
import select
import signal
import socket
import string
import subprocess
import sys
import syslog

try:
    from typing import AbstractSet, cast, DefaultDict, Dict, Iterable, List
    AbstractSet  # pyflakes
    DefaultDict  # pyflakes
    Dict  # pyflakes
    Iterable  # pyflakes
    List  # pyflakes
    from typing import Set, Tuple, Union
    Set  # pyflakes
    Tuple  # pyflakes
    Union  # pyflakes
except ImportError:
    pass

from collections import defaultdict, namedtuple
from datetime import date
from email.message import Message
from gettext import gettext as _
from io import StringIO
from optparse import (
    OptionParser,
    SUPPRESS_HELP,
)

from subprocess import (
    Popen,
    PIPE,
)
from textwrap import wrap

import apt
import apt_inst
import apt_pkg

import distro_info

# the reboot required flag file used by packages
REBOOT_REQUIRED_FILE = "/var/run/reboot-required"
KEPT_PACKAGES_FILE = "var/lib/unattended-upgrades/kept-back"
MAIL_BINARY = "/usr/bin/mail"
SENDMAIL_BINARY = "/usr/sbin/sendmail"
USERS = "/usr/bin/users"
# no py3 lsb_release in debian :/
DISTRO_CODENAME = subprocess.check_output(
    ["lsb_release", "-c", "-s"], universal_newlines=True).strip()  # type: str
DISTRO_DESC = subprocess.check_output(
    ["lsb_release", "-d", "-s"], universal_newlines=True).strip()  # type: str
DISTRO_ID = subprocess.check_output(
    ["lsb_release", "-i", "-s"], universal_newlines=True).strip()  # type: str

# Number of days before release of devel where we enable unattended
# upgrades.
DEVEL_UNTIL_RELEASE = datetime.timedelta(days=21)

# progress information is written here
PROGRESS_LOG = "/var/run/unattended-upgrades.progress"
PID_FILE = "/var/run/unattended-upgrades.pid"
LOCK_FILE = "/var/run/unattended-upgrades.lock"

# set from the sigint signal handler
SIGNAL_STOP_REQUEST = False

# messages to be logged only once
logged_msgs = set()  # type: AbstractSet[str]

NEVER_PIN = -32768

class LoggingDateTime:
    """The date/time representation for the dpkg log file timestamps"""
    LOG_DATE_TIME_FMT = "%Y-%m-%d  %H:%M:%S"

@classmethod
    def as_string(cls):
        # type: () -> str
        """Return the current date and time as LOG_DATE_TIME_FMT string"""
        return datetime.datetime.now().strftime(cls.LOG_DATE_TIME_FMT)

@classmethod
    def from_string(cls, logstr):
        # type: (str) -> datetime.datetime
        """Take a LOG_DATE_TIME_FMT string and return datetime object"""
        return datetime.datetime.strptime(logstr, cls.LOG_DATE_TIME_FMT)

class UnknownMatcherError(ValueError):
    pass

class NoAllowedOriginError(ValueError):
    pass

PkgPin = namedtuple('PkgPin', ['pkg', 'priority'])
PkgFilePin = namedtuple('PkgFilePin', ['id', 'priority'])

class UnattendedUpgradesCache(apt.Cache):

def __init__(self, rootdir):
        # type: (str) -> None
        self._cached_candidate_pkgnames = set()  # type: Set[str]

self.allowed_origins = get_allowed_origins()
        logging.info(_("Allowed origins are: %s"),
                     ", ".join(self.allowed_origins))

self.blacklist = apt_pkg.config.value_list(
            "Unattended-Upgrade::Package-Blacklist")
        logging.info(_("Initial blacklist: %s"), " ".join(self.blacklist))

self.whitelist = apt_pkg.config.value_list(
            "Unattended-Upgrade::Package-Whitelist")
        self.strict_whitelist = apt_pkg.config.find_b(
            "Unattended-Upgrade::Package-Whitelist-Strict", False)
        logging.info(_("Initial whitelist (%s): %s"),
                     "strict" if self.strict_whitelist else "not strict",
                     " ".join(self.whitelist))
        apt.Cache.__init__(self, rootdir=rootdir)

# pre-heat lazy-loaded modules to avoid crash on python upgrade
        datetime.datetime.strptime("", "")

# generate versioned_kernel_pkgs_regexp for later use
        self.versioned_kernel_pkgs_regexp = versioned_kernel_pkgs_regexp()
        self.running_kernel_pkgs_regexp = running_kernel_pkgs_regexp()
        if self.versioned_kernel_pkgs_regexp:
            logging.debug("Using %s regexp to find kernel packages",
                          self.versioned_kernel_pkgs_regexp.pattern)
        else:
            logging.debug("APT::VersionedKernelPackages is not set")
        if self.running_kernel_pkgs_regexp:
            logging.debug("Using %s regexp to find running kernel packages",
                          self.running_kernel_pkgs_regexp.pattern)

def find_better_version(self, pkg):
        # type (apt.Package) -> apt.package.Version
        if pkg.is_installed and pkg.versions[0] > pkg.installed:
            logging.debug(
                "Package %s has a higher version available, checking if it is "
                "from an allowed origin and is not pinned down.", pkg.name)
            for v in pkg.versions:
                if pkg.installed < v \
                   and pkg.installed.policy_priority <= v.policy_priority \
                   and is_in_allowed_origin(v, self.allowed_origins):
                    return v
        return None

def find_kept_packages(self, dry_run):
        # type: (bool) -> KeptPkgs
        """ Find kept packages not collected already """

kept_packages = KeptPkgs(set)
        if dry_run:
            logging.info(_("The list of kept packages can't be calculated in "
                           "dry-run mode."))
            return kept_packages
        for pkg in self:
            better_version = self.find_better_version(pkg)
            if better_version:
                logging.info(self.kept_package_excuse(pkg._pkg,
                                                      self.blacklist,
                                                      self.whitelist,
                                                      self.strict_whitelist,
                                                      better_version))
                kept_packages.add(pkg, better_version, self)
        return kept_packages

def kept_package_excuse(self, pkg,          # apt.Package
                            blacklist,          # type: List[str]
                            whitelist,          # type: List[str]
                            strict_whitelist,   # type: bool
                            better_version      # type: apt.package.Version
                            ):
        # type: (...) -> str
        """ Log the excuse the package is kept back for """
        if pkg.selected_state == apt_pkg.SELSTATE_HOLD:
            return _("Package %s is marked to be held back.") % pkg.name
        elif is_pkgname_in_blacklist(pkg.name, blacklist):
            return _("Package %s is blacklisted.") % pkg.name
        elif whitelist:
            if strict_whitelist:
                if not is_pkgname_in_whitelist(pkg.name, whitelist):
                    return (_(
                        "Package %s is not on the strict whitelist.")
                            % pkg.name)
                else:
                    if not is_pkgname_in_whitelist(pkg.name, whitelist):
                        return (_(
                            "Package %s is not whitelisted and it is not a"
                            " dependency of a whitelisted package.")
                                % pkg.name)
        elif not any([o.trusted for o in better_version.origins]):
            return _("Package %s's origin is not trusted.") % pkg.name
        return (_("Package %s is kept back because a related package"
                  " is kept back or due to local apt_preferences(5).")
                % pkg.name)

def pinning_from_regex_list(self, regexps, priority):
        # type: (List[str], int) -> List[PkgPin]
        """ Represent blacklist as Python regexps as list of pkg pinnings"""

pins = []  # type: List[PkgPin]
        for regex in regexps:
            if python_regex_is_posix(regex):
                pins.append(PkgPin('/^' + regex + '/', priority))
            else:
                # Python regex is not also an equivalent POSIX regexp.
                # This is expected to be rare. Go through all the package names
                # and pin all the matching ones.
                for pkg in self._cache.packages:
                    if re.match(regex, pkg.name):
                        pins.append(PkgPin(pkg.name, priority))
        return pins

def pinning_from_config(self):
        # type: () -> List[Union[PkgPin, PkgFilePin]]
        """ Represent configuration as list of pinnings

Assumes self.allowed_origins to be already set.
        """

pins = []  # type: List[Union[PkgPin, PkgFilePin]]

# mark not allowed origins with 'never' pin
        for pkg_file in self._cache.file_list:  # type: ignore
            if not is_allowed_origin(pkg_file, self.allowed_origins):
                # Set the magic 'never' pin on not allowed origins
                logging.debug("Marking not allowed %s with %s pin", pkg_file,
                              NEVER_PIN)
                pins.append(PkgFilePin(pkg_file.id, NEVER_PIN))
            # TODO(rbalint) pin not trusted origins with NEVER_PIN
            elif self.strict_whitelist:
                # set even allowed origins to -1 and set individual package
                # priorities up later
                pins.append(PkgFilePin(pkg_file.id, -1))

# mark blacklisted packages with 'never' pin
        pins.extend(self.pinning_from_regex_list(  # type: ignore
            self.blacklist, NEVER_PIN))
        # set priority of whitelisted packages to high
        pins.extend(self.pinning_from_regex_list(  # type: ignore
            self.whitelist, 900))
        if self.strict_whitelist:
            policy = self._depcache.policy
            # pin down already pinned packages which are not on the whitelist
            # to not install locally pinned up packages accidentally
            for pkg in self._cache.packages:
                if pkg.has_versions:
                    pkg_ver = policy.get_candidate_ver(pkg)  # type: ignore
                    if pkg_ver is not None \
                       and policy.get_priority(pkg_ver) > -1:
                        # the pin is higher than set for allowed origins, thus
                        # there is extra pinning configuration
                        if not is_pkgname_in_whitelist(pkg.name,
                                                       self.whitelist):
                            pins.append(PkgPin(pkg.name, NEVER_PIN))

return pins

def apply_pinning(self, pins):
        # type: (List[Union[PkgPin, PkgFilePin]]) -> None
        """ Apply the list of pins """

policy = self._depcache.policy
        pkg_files = {f.id: f for f in self._cache.file_list}  # type: ignore
        for pin in pins:
            logging.debug("Applying pinning: %s" % str(pin))
            if isinstance(pin, PkgPin):
                policy.create_pin('Version', pin.pkg, '*',  # type: ignore
                                  pin.priority)
            elif isinstance(pin, PkgFilePin):
                logging.debug("Applying pin %s to package_file: %s"
                              % (pin.priority, str(pkg_files[pin.id])))
                policy.set_priority(pkg_files[pin.id],  # type: ignore
                                    pin.priority)

def open(self, progress=None):
        apt.Cache.open(self, progress)
        # apply pinning generated from unattended-upgrades configuration
        self.apply_pinning(self.pinning_from_config())

def adjust_candidate(self, pkg):
        # type: (apt.Package) -> bool
        """ Adjust origin and return True if adjustment took place

This is needed when e.g. a package is available in
            the security pocket but there is also a package in the
            updates pocket with a higher version number
        """
        try:
            new_cand = ver_in_allowed_origin(pkg, self.allowed_origins)
            # Only adjust to lower versions to avoid flipping back and forth
            # and to avoid picking a newer version, not selected by apt.
            # This helps avoiding upgrades to experimental's packages.
            if pkg.candidate is not None and new_cand < pkg.candidate:
                logging.debug("adjusting candidate version: %s" % new_cand)
                pkg.candidate = new_cand
                return True
            else:
                return False
        except NoAllowedOriginError:
            return False

def call_checked(self, function, pkg, **kwargs):
        """ Call function and check if package is in the wanted state
        """
        try:
            function(pkg, **kwargs)
        except SystemError as e:
            logging.warning(
                _("package %s upgradable but fails to "
                  "be marked for upgrade (%s)"), pkg.name, e)
            self.clear()
            return False

return ((function == apt.package.Package.mark_upgrade
                 or function == apt.package.Package.mark_install)
                and (pkg.marked_upgrade or pkg.marked_install))

def call_adjusted(self, function, pkg, **kwargs):
        """Call function, but with adjusting
           packages in changes to come from allowed origins

Note that as a side effect more package's candidate can be
           adjusted than only the one's in the final changes set.
        """
        new_pkgs_to_adjust = []  # List[str]

if not is_pkg_change_allowed(pkg, self.blacklist, self.whitelist,
                                     self.strict_whitelist):
            return

if function == apt.package.Package.mark_upgrade \
                and not pkg.is_upgradable:
            if not apt_pkg.config.find_b("Unattended-Upgrade::Allow-downgrade",
                                         False):
                return
            else:
                function = apt.package.Package.mark_install
        marking_succeeded = self.call_checked(function, pkg, **kwargs)

if (not marking_succeeded
            or not check_changes_for_sanity(self, desired_pkg=pkg)) \
                and allow_marking_fallback():
            logging.debug("falling back to adjusting %s's dependencies"
                          % pkg.name)
            self.clear()
            # adjust candidates in advance if needed
            for pkg_name in self._cached_candidate_pkgnames:
                self.adjust_candidate(self[pkg_name])

self.adjust_candidate(pkg)
            for dep in transitive_dependencies(pkg, self, level=1):
                try:
                    self.adjust_candidate(self[dep])
                except KeyError:
                    pass

self.call_checked(function, pkg, **kwargs)

for marked_pkg in self.get_changes():
            if marked_pkg.name in self._cached_candidate_pkgnames:
                continue
            if not is_in_allowed_origin(marked_pkg.candidate,
                                        self.allowed_origins):
                try:
                    ver_in_allowed_origin(marked_pkg,
                                          self.allowed_origins)
                    # important! this avoids downgrades below
                    if pkg.is_installed and not pkg.is_upgradable and \
                            apt_pkg.config.find_b("Unattended-Upgrade::Allow-"
                                                  "downgrade", False):
                        continue
                    new_pkgs_to_adjust.append(marked_pkg)
                except NoAllowedOriginError:
                    pass

if new_pkgs_to_adjust:
            new_pkg_adjusted = False
            for pkg_to_adjust in new_pkgs_to_adjust:
                if self.adjust_candidate(pkg_to_adjust):
                    self._cached_candidate_pkgnames.add(pkg_to_adjust.name)
                    new_pkg_adjusted = True
            if new_pkg_adjusted:
                self.call_adjusted(function, pkg, **kwargs)

def mark_upgrade_adjusted(self, pkg, **kwargs):
        self.call_adjusted(apt.package.Package.mark_upgrade, pkg, **kwargs)

def mark_install_adjusted(self, pkg, **kwargs):
        self.call_adjusted(apt.package.Package.mark_install, pkg, **kwargs)

class LogInstallProgress(apt.progress.base.InstallProgress):
    """ Install progress that writes to self.progress_log
        (/var/run/unattended-upgrades.progress by default)
    """

def __init__(self, logfile_dpkg, verbose=False,
                 progress_log="var/run/unattended-upgrades.progress"):
        # type: (str, bool, str) -> None
        apt.progress.base.InstallProgress.__init__(self)
        self.logfile_dpkg = logfile_dpkg
        self.progress_log = os.path.join(apt_pkg.config.find_dir("Dir"),
                                         progress_log)
        self.verbose = verbose
        self.output_logfd = None  # type: int

def status_change(self, pkg, percent, status):
        # type: (str, float, str) -> None
        with open(self.progress_log, "w") as f:
            f.write(_("Progress: %s %% (%s)") % (percent, pkg))

def _fixup_fds(self):
        # () -> None
        required_fds = [0, 1, 2,  # stdin, stdout, stderr
                        self.writefd,
                        self.write_stream.fileno(),
                        self.statusfd,
                        self.status_stream.fileno()
                        ]
        # ensure that our required fds close on exec
        for fd in required_fds[3:]:
            old_flags = fcntl.fcntl(fd, fcntl.F_GETFD)
            fcntl.fcntl(fd, fcntl.F_SETFD, old_flags | fcntl.FD_CLOEXEC)
        # close all fds
        proc_fd = "/proc/self/fd"
        if os.path.exists(proc_fd):
            error_count = 0
            for fdname in os.listdir(proc_fd):
                try:
                    fd = int(fdname)
                except Exception:
                    print("ERROR: can not get fd for %s" % fdname)
                if fd in required_fds:
                    continue
                try:
                    os.close(fd)
                    # print("closed: ", fd)
                except OSError as e:
                    # there will be one fd that can not be closed
                    # as its the fd from pythons internal diropen()
                    # so its ok to ignore one close error
                    error_count += 1
                    if error_count > 1:
                        print("ERROR: os.close(%s): %s" % (fd, e))

def _redirect_stdin(self):
        # type: () -> None
        REDIRECT_INPUT = os.devnull
        fd = os.open(REDIRECT_INPUT, os.O_RDWR)
        os.dup2(fd, 0)

def _redirect_output(self):
        # type: () -> None
        # do not create log in dry-run mode, just output to stdout/stderr
        if not apt_pkg.config.find_b("Debug::pkgDPkgPM", False):
            logfd = self._get_logfile_dpkg_fd()
            os.dup2(logfd, 1)
            os.dup2(logfd, 2)

def _get_logfile_dpkg_fd(self):
        # type: () -> int
        logfd = os.open(
            self.logfile_dpkg, os.O_RDWR | os.O_APPEND | os.O_CREAT, 0o640)
        try:
            adm_gid = grp.getgrnam("adm").gr_gid
            os.fchown(logfd, 0, adm_gid)
        except (KeyError, OSError):
            pass
        return logfd

def update_interface(self):
        # type: () -> None
        # call super class first
        apt.progress.base.InstallProgress.update_interface(self)
        self._do_verbose_output_if_needed()

def _do_verbose_output_if_needed(self):
        # type: () -> None
        # if we are in debug mode, nothing to be more verbose about
        if apt_pkg.config.find_b("Debug::pkgDPkgPM", False):
            return
        # handle verbose
        if self.verbose:
            if self.output_logfd is None:
                self.output_logfd = os.open(self.logfile_dpkg, os.O_RDONLY)
                os.lseek(self.output_logfd, 0, os.SEEK_END)
            try:
                select.select([self.output_logfd], [], [], 0)
                # FIXME: this should be OSError, but in py2.7 it is still
                #        select.error
            except select.error as e:
                if e.errno != errno.EINTR:  # type: ignore
                    logging.exception("select failed")
            # output to stdout in verbose mode only
            os.write(1, os.read(self.output_logfd, 1024))

def _log_in_dpkg_log(self, msg):
        # type: (str) -> None
        logfd = self._get_logfile_dpkg_fd()
        os.write(logfd, msg.encode("utf-8"))
        os.close(logfd)

def finish_update(self):
        # type: () -> None
        self._log_in_dpkg_log("Log ended: %s\n\n"
                              % LoggingDateTime.as_string())

def fork(self):
        # type: () -> int
        self._log_in_dpkg_log("Log started: %s\n"
                              % LoggingDateTime.as_string())
        pid = os.fork()
        if pid == 0:
            self._fixup_fds()
            self._redirect_stdin()
            self._redirect_output()
        return pid

class Unlocked:
    """
    Context manager for unlocking the apt lock while cache.commit() is run
    """

def __enter__(self):
        # type: () -> None
        try:
            apt_pkg.pkgsystem_unlock_inner()
        except Exception:
            # earlier python-apt used to leak lock
            logging.warning("apt_pkg.pkgsystem_unlock() failed due to not "
                            "holding the lock but trying to continue")
            pass

def __exit__(self, exc_type, exc_value, exc_tb):
        # type: (object, object, object) -> None
        apt_pkg.pkgsystem_lock_inner()

class KeptPkgs(defaultdict):
    """
    Packages to keep by highest allowed pretty-printed origin

"""
    def add(self, pkg,  # type: apt.Package
            version,    # type: apt.package.Version
            cache       # type: UnattendedUpgradesCache
            ):
        # type: (...) -> None
        for origin in version.origins:
            if is_allowed_origin(origin, cache.allowed_origins):
                self[origin.origin + " " + origin.archive].add(pkg.name)
                return

class UnattendedUpgradesResult:
    """
    Represent the (potentially partial) results of an unattended-upgrades
    run
    """
    def __init__(self,
                 success,                 # type: bool
                 result_str="",           # type: str
                 pkgs=[],                 # type: List[str]
                 pkgs_kept_back=KeptPkgs(set),     # type: KeptPkgs
                 pkgs_removed=[],         # type: List[str]
                 pkgs_kept_installed=[],  # type: List[str]
                 update_stamp=False       # type: bool
                 ):
        # type: (...) -> None
        self.success = success
        self.result_str = result_str
        self.pkgs = pkgs
        self.pkgs_kept_back = pkgs_kept_back
        self.pkgs_removed = pkgs_removed
        self.pkgs_kept_installed = pkgs_kept_installed
        self.update_stamp = update_stamp

def is_dpkg_journal_dirty():
    # type: () -> bool
    """
    Return True if the dpkg journal is dirty
    (similar to debSystem::CheckUpdates)
    """
    d = os.path.join(
        os.path.dirname(apt_pkg.config.find_file("Dir::State::status")),
        "updates")
    for f in os.listdir(d):
        if re.match("[0-9]+", f):
            return True
    return False

def signal_handler(signal, frame):
    # type: (int, object) -> None
    logging.warning("SIGTERM received, will stop")
    global SIGNAL_STOP_REQUEST
    SIGNAL_STOP_REQUEST = True

def log_once(msg):
    # type: (str) -> None
    global logged_msgs
    if msg not in logged_msgs:
        logging.info(msg)
        logged_msgs.add(msg)  # type: ignore

def should_stop():
    # type: () -> bool
    """
    Return True if u-u needs to stop due to signal received or due to the
    system started to run on battery.
    """
    if SIGNAL_STOP_REQUEST:
        logging.warning("SIGNAL received, stopping")
        return True
    try:
        if apt_pkg.config.find_b("Unattended-Upgrade::OnlyOnACPower", True) \
           and subprocess.call("on_ac_power") == 1:
            logging.warning("System is on battery power, stopping")
            return True
    except FileNotFoundError:
        log_once(
            _("Checking if system is running on battery is skipped. Please "
              "install powermgmt-base package to check power status and skip "
              "installing updates when the system is running on battery."))
    if apt_pkg.config.find_b(
            "Unattended-Upgrade::Skip-Updates-On-Metered-Connections", True):
        try:
            if NetworkMonitor.get_network_metered(
                    NetworkMonitor.get_default()):
                logging.warning(_("System is on metered connection, stopping"))
                return True
        except NameError:
            log_once(_("Checking if connection is metered is skipped. Please "
                       "install python3-gi package to detect metered "
                       "connections and skip downloading updates."))
    return False

def substitute(line):
    # type: (str) -> str
    """ substitude known mappings and return a new string

Currently supported ${distro-release}
    """
    mapping = {"distro_codename": get_distro_codename(),
               "distro_id": get_distro_id()}
    return string.Template(line).substitute(mapping)

def get_distro_codename():
    # type: () -> str
    return DISTRO_CODENAME

def get_distro_id():
    # type: () -> str
    return DISTRO_ID

def allow_marking_fallback():
    # type: () -> bool
    return apt_pkg.config.find_b(
        "Unattended-Upgrade::Allow-APT-Mark-Fallback",
        get_distro_codename() != "sid")

def versioned_kernel_pkgs_regexp():
    apt_versioned_kernel_pkgs = apt_pkg.config.value_list(
        "APT::VersionedKernelPackages")
    if apt_versioned_kernel_pkgs:
        return re.compile("(" + "|".join(
            ["^" + p + "-[1-9][0-9]*\\.[0-9]+\\.[0-9]+-[0-9]+(-.+)?$"
             for p in apt_versioned_kernel_pkgs]) + ")")
    else:
        return None

def running_kernel_pkgs_regexp():
    apt_versioned_kernel_pkgs = apt_pkg.config.value_list(
        "APT::VersionedKernelPackages")
    if apt_versioned_kernel_pkgs:
        running_kernel_version = subprocess.check_output(
            ["uname", "-r"], universal_newlines=True).rstrip()
        kernel_escaped = re.escape(running_kernel_version)
        try:
            kernel_noflavor_escaped = re.escape(
                re.match("[1-9][0-9]*\\.[0-9]+\\.[0-9]+-[0-9]+",
                         running_kernel_version)[0])
            return re.compile("(" + "|".join(
                [("^" + p + "-" + kernel_escaped + "$|^"
                  + p + "-" + kernel_noflavor_escaped + "$")
                 for p in apt_versioned_kernel_pkgs]) + ")")
        except TypeError:
            # flavor could not be cut from version
            return re.compile("(" + "|".join(
                [("^" + p + "-" + kernel_escaped + "$")
                 for p in apt_versioned_kernel_pkgs]) + ")")
    else:
        return None

def get_allowed_origins_legacy():
    # type: () -> List[str]
    """ legacy support for old Allowed-Origins var """
    allowed_origins = []  # type: List[str]
    key = "Unattended-Upgrade::Allowed-Origins"
    try:
        for s in apt_pkg.config.value_list(key):
            # if there is a ":" use that as seperator, else use spaces
            if re.findall(r'(?<!\\):', s):
                (distro_id, distro_codename) = re.split(r'(?<!\\):', s)
            else:
                (distro_id, distro_codename) = s.split()
            # unescape "\:" back to ":"
            distro_id = re.sub(r'\\:', ':', distro_id)
            # escape "," (see LP: #824856) - can this be simpler?
            distro_id = re.sub(r'([^\\]),', r'\1\\,', distro_id)
            distro_codename = re.sub(r'([^\\]),', r'\1\\,', distro_codename)
            # convert to new format
            allowed_origins.append("o=%s,a=%s" % (substitute(distro_id),
                                   substitute(distro_codename)))
    except ValueError:
        logging.error(_("Unable to parse %s." % key))
        raise
    return allowed_origins

def get_allowed_origins():
    # type: () -> List[str]
    """ return a list of allowed origins from apt.conf

This will take substitutions (like distro_id) into account.
    """
    allowed_origins = get_allowed_origins_legacy()
    key = "Unattended-Upgrade::Origins-Pattern"
    try:
        for s in apt_pkg.config.value_list(key):
            allowed_origins.append(substitute(s))
    except ValueError:
        logging.error(_("Unable to parse %s." % key))
        raise
    return allowed_origins

def match_whitelist_string(whitelist, origin):
    # type: (str, Union[apt.package.Origin, apt_pkg.PackageFile]) -> bool
    """
    take a whitelist string in the form "origin=Debian,label=Debian-Security"
    and match against the given python-apt origin. A empty whitelist string
    never matches anything.
    """
    whitelist = whitelist.strip()
    if whitelist == "":
        logging.warning("empty match string matches nothing")
        return False
    res = True
    # make "\," the html quote equivalent
    whitelist = whitelist.replace("\\,", "%2C")
    for token in whitelist.split(","):
        # strip and unquote the "," back
        (what, value) = [s.strip().replace("%2C", ",")
                         for s in token.split("=")]
        # logging.debug("matching %s=%s against %s" % (
        #              what, value, origin))
        # support substitution here as well
        value = substitute(value)
        # first char is apt-cache policy output, send is the name
        # in the Release file
        if what in ("o", "origin"):
            match = fnmatch.fnmatch(origin.origin, value)
        elif what in ("l", "label"):
            match = fnmatch.fnmatch(origin.label, value)
        elif what in ("a", "suite", "archive"):
            match = fnmatch.fnmatch(origin.archive, value)
        elif what in ("c", "component"):
            match = fnmatch.fnmatch(origin.component, value)
        elif what in ("site",):
            match = fnmatch.fnmatch(origin.site, value)
        elif what in ("n", "codename",):
            match = fnmatch.fnmatch(origin.codename, value)
        else:
            raise UnknownMatcherError(
                "Unknown whitelist entry for matcher %s (token %s)" % (
                    what, token))
        # update res
        res = res and match
        # logging.debug("matching %s=%s against %s" % (
        #              what, value, origin))
    return res

def python_regex_is_posix(expression):
    # type: (str) -> bool
    """ Returns if the Python regex is also an equivalent POSIX regex """
    return re.match("^[-a-zA-Z0-9\\^\\$\\+\\.:]*$", expression) is not None

def cache_commit(cache,           # type: apt.Cache
                 logfile_dpkg,    # type: str
                 verbose,         # type: bool
                 iprogress=None,  # type: apt.progress.base.InstallProgress
                 ):
    # type: (...) -> Tuple[bool, Exception]
    """Commit the changes from the given cache to the system"""

error = None
    res = False
    if iprogress is None:
        iprogress = LogInstallProgress(logfile_dpkg, verbose)

try:
        res = cache.commit(install_progress=iprogress)
        cache.open()
    except SystemError as e:
        error = e
        if verbose:
            logging.exception("Exception happened during upgrade.")
        cache.clear()
    return res, error

def upgrade_normal(cache, logfile_dpkg, verbose):
    # type: (apt.Cache, str, bool) -> bool
    res, error = cache_commit(cache, logfile_dpkg, verbose)
    if res:
        logging.info(_("All upgrades installed"))
    else:
        logging.error(_("Installing the upgrades failed!"))
        logging.error(_("error message: %s"), error)
        logging.error(_("dpkg returned a error! See %s for details"),
                      logfile_dpkg)
    return res

def upgrade_in_minimal_steps(cache,            # type: UnattendedUpgradesCache
                             pkgs_to_upgrade,  # type: List[str]
                             logfile_dpkg="",  # type: str
                             verbose=False,    # type: bool
                             ):
    # type: (...) -> bool
    install_log = LogInstallProgress(logfile_dpkg, verbose)

res = True

# to upgrade contains the package names
    to_upgrade = set(pkgs_to_upgrade)
    for pkgname in upgrade_order(to_upgrade, cache):
        # upgrade packages and dependencies in increasing expected size of
        # package sets to upgrade/install together
        if pkgname not in to_upgrade:
            # pkg is upgraded in a previous set
            continue
        if should_stop():
            return False
        pkg = cache[pkgname]
        try:
            if pkg.is_upgradable \
               or candidate_version_changed(pkg):
                cache.mark_upgrade_adjusted(
                    pkg, from_user=not pkg.is_auto_installed)
            elif not pkg.is_installed:
                cache.mark_install_adjusted(pkg, from_user=False)
            else:
                continue
        except Exception as e:
            logging.warning(
                _("package %s upgradable but fails to "
                  "be marked for upgrade (%s)"), pkgname, e)
            cache.clear()
            res = False
            continue

# double check that we are not running into side effects like
        # what could have been caused LP: #1020680
        if not check_changes_for_sanity(cache):
            logging.info("While building minimal partition: "
                         "cache has not allowed changes")
            cache.clear()
            continue
        changes = [p.name for p in cache.get_changes()]
        if not changes:
            continue

# write progress log information
        if len(pkgs_to_upgrade) > 0:
            all_count = len(pkgs_to_upgrade)
            remaining_count = all_count - len(to_upgrade)
            percent = remaining_count / float(all_count * 100.0)
        else:
            percent = 100.0
        install_log.status_change(pkg=",".join(changes),
                                  percent=percent,
                                  status="")
        # apply changes
        logging.debug("applying set %s" % changes)

res, error = cache_commit(cache, logfile_dpkg, verbose, install_log)
        if error:
            if verbose:
                logging.exception("Exception happened during upgrade.")
            logging.error(_("Installing the upgrades failed!"))
            logging.error(_("error message: %s"), error)
            logging.error(_("dpkg returned a error! See %s for details"),
                          logfile_dpkg)
            return False
        to_upgrade = to_upgrade - set(changes)
        logging.debug("left to upgrade %s" % to_upgrade)
        if len(to_upgrade) == 0:
            logging.info(_("All upgrades installed"))
            break
    return res

def is_allowed_origin(origin, allowed_origins):
    # type: (Union[apt.package.Origin, apt_pkg.PackageFile], List[str]) -> bool

# local origin is allowed by default
    if origin.component == 'now' and origin.archive == 'now' and \
       not origin.label and not origin.site:
        return True
    for allowed in allowed_origins:
        if match_whitelist_string(allowed, origin):
            return True
    return False

def is_in_allowed_origin(ver, allowed_origins):
    # type: (apt.package.Version, List[str]) -> bool
    if not ver:
        return False
    for origin in ver.origins:
        if is_allowed_origin(origin, allowed_origins):
            return True
    return False

def ver_in_allowed_origin(pkg, allowed_origins):
    # type: (apt.Package, List[str]) -> apt.package.Version
    for ver in pkg.versions:
        if is_in_allowed_origin(ver, allowed_origins):
            # leave as soon as we have the highest new candidate
            return ver
    raise NoAllowedOriginError()

def is_pkgname_in_blacklist(pkgname, blacklist):
    # type: (str, List[str]) -> bool
    for blacklist_regexp in blacklist:
        if re.match(blacklist_regexp, pkgname):
            logging.debug("skipping blacklisted package %s" % pkgname)
            return True
    return False

def is_pkgname_in_whitelist(pkgname, whitelist):
    # type: (str, List[str]) -> bool
    # a empty whitelist means the user does not want to use this feature
    if not whitelist:
        return True
    for whitelist_regexp in whitelist:
        if re.match(whitelist_regexp, pkgname):
            logging.debug("only upgrading the following package %s" %
                          pkgname)
            return True
    return False

def is_pkg_change_allowed(pkg, blacklist, whitelist, strict_whitelist):
    # type: (apt.Package, List[str], List[str], bool) -> bool
    if is_pkgname_in_blacklist(pkg.name, blacklist):
        logging.debug("pkg %s package has been blacklisted" % pkg.name)
        return False
    # a strict whitelist will not allow any changes not in the
    # whitelist, most people will want the relaxed whitelist
    # that whitelists a package but pulls in the package
    # dependencies
    if strict_whitelist and \
       not is_pkgname_in_whitelist(pkg.name, whitelist):

logging.debug("pkg %s package is not whitelisted" %
                      pkg.name)
        return False
    if pkg._pkg.selected_state == apt_pkg.SELSTATE_HOLD:
        logging.debug("pkg %s is on hold" % pkg.name)
        return False
    return True

def transitive_dependencies(pkg,               # type: apt.Package
                            cache,             # type: apt.Cache
                            acc=set(),         # type AbstractSet[str]
                            valid_types=None,  # type: AbstractSet[str]
                            level=None         # type: int
                            ):
    # type (...) -> AbstractSet[str]
    """ All (transitive) dependencies of the package

Note that alternative (|) dependencies are collected, too
    """
    if not pkg.candidate or level is not None and level < 1:
        return acc

for dep in pkg.candidate.dependencies:
        for base_dep in dep:
            if base_dep.name not in acc:
                if not valid_types or base_dep.rawtype in valid_types:
                    acc.add(base_dep.name)
                    try:
                        transitive_dependencies(
                            cache[base_dep.name], cache, acc, valid_types,
                            level=(level - 1 if level is not None else None))
                    except KeyError:
                        pass
    return acc

def upgrade_order(to_upgrade, cache):
    # type: (AbstractSet[str], apt.Cache) -> List[str]
    """  Sort pkg names by the expected number of other packages to be upgraded
         with it. The calculation is not 100% accurate, it is an approximation.
    """

upgrade_set_sizes = {}
    # calculate upgrade sets
    follow_deps = {'Depends', 'PreDepends', 'Recommends'}
    for pkgname in to_upgrade:
        pkg = cache[pkgname]
        upgrade_set_sizes[pkgname] = len(transitive_dependencies(
            pkg, cache, valid_types=follow_deps).intersection(to_upgrade))
    return sorted(upgrade_set_sizes, key=upgrade_set_sizes.get)

def check_changes_for_sanity(cache, desired_pkg=None):
    # type: (UnattendedUpgradesCache, apt.Package) -> bool
    sanity_check_result = sanity_problem(cache, desired_pkg)
    if sanity_check_result is None:
        return True
    else:
        logging.debug("sanity check failed for: %s : %s"
                      % (str({str(p.candidate) for p in cache.get_changes()}),
                         sanity_check_result))
        return False

def sanity_problem(cache, desired_pkg):
    # type: (UnattendedUpgradesCache, apt.Package) -> str
    if cache._depcache.broken_count != 0:
        return ("there are broken packages in the cache")
    # If there are no packages to be installed they were kept back
    if cache.install_count == 0:
        return ("no package is selected to be upgraded or installed")
    changes = cache.get_changes()
    for pkg in changes:
        if pkg.marked_delete:
            return ("pkg %s is marked to be deleted" % pkg.name)
        if pkg.marked_install or pkg.marked_upgrade:
            # apt will never fallback from a trusted to a untrusted
            # origin so its good enough if we have a single trusted one
            if not any([o.trusted for o in pkg.candidate.origins]):
                return ("pkg %s is not from a trusted origin" % pkg.name)
            if not is_in_allowed_origin(pkg.candidate, cache.allowed_origins):
                return ("pkg %s is not in an allowed origin" % pkg.name)
            if not is_pkg_change_allowed(pkg,
                                         cache.blacklist,
                                         cache.whitelist,
                                         cache.strict_whitelist):
                return ("pkg %s is blacklisted or is not whitelisted"
                        % pkg.name)
            # check if the package is unsafe to upgrade unattended
            ignore_require_restart = apt_pkg.config.find_b(
                "Unattended-Upgrade::IgnoreAppsRequireRestart", False)
            upgrade_requires = pkg.candidate.record.get("Upgrade-Requires")
            if pkg.marked_upgrade and ignore_require_restart is False \
               and upgrade_requires == "app-restart":
                return ("pkg %s requires app-restart, it is not safe to "
                        "upgrade it unattended")
    # check that the package we want to upgrade is in the change set
    if desired_pkg and desired_pkg not in changes:
        return ("pkg %s to be marked for upgrade/install is not marked "
                "accordingly" % desired_pkg.name)
    return None

def is_deb(file):
    # type: (str) -> bool
    if file.endswith(".deb"):
        return True
    else:
        return False

def pkgname_from_deb(debfile):
    # type: (str) -> str
    # FIXME: add error checking here
    try:
        control = apt_inst.DebFile(debfile).control.extractdata("control")
        sections = apt_pkg.TagSection(control)
        return sections["Package"]
    except (IOError, SystemError) as e:
        logging.error("failed to read deb file %s (%s)" % (debfile, e))
        # dumb fallback
        return debfile.split("_")[0]

def get_md5sum_for_file_in_deb(deb_file, conf_file):
    # type: (str, str) -> str
    dpkg_cmd = ["dpkg-deb", "--fsys-tarfile", deb_file]
    tar_cmd = ["tar", "-x", "-O", "-f", "-", "." + conf_file]
    md5_cmd = ["md5sum"]
    dpkg_p = Popen(dpkg_cmd, stdout=PIPE)
    tar_p = Popen(tar_cmd, stdin=dpkg_p.stdout, stdout=PIPE,
                  universal_newlines=True)
    md5_p = Popen(md5_cmd, stdin=tar_p.stdout, stdout=PIPE,
                  universal_newlines=True)
    pkg_md5sum = md5_p.communicate()[0].split()[0]
    for __p in [dpkg_p, tar_p, md5_p]:
        p = cast(Popen, __p)
        p.stdout.close()
        p.wait()
    return pkg_md5sum

def get_md5sum_for_file_installed(conf_file, prefix):
    # type: (str, str) -> str
    try:
        with open(prefix + conf_file, 'rb') as fb:
            for hash_string in apt_pkg.Hashes(fb).hashes:  # type: ignore
                if hash_string.hashtype == 'MD5Sum':
                    return hash_string.hashvalue
            return None
    except IsADirectoryError:
        # the package replaces a directory wih a configuration file
        #
        # if the package changed this way it is safe to assume that
        # the transition happens without showing a prompt but if the admin
        # created the directory the admin will need to resolve it after
        # being notified about the unexpected prompt
        logging.debug("found conffile %s is a directory on the system "
                      % conf_file)
        return "dir"
    except FileNotFoundError:
        # if the local file got deleted by the admin thats ok but it may still
        # trigger a conffile promp (see debian #788049)
        logging.debug("conffile %s in missing on the system" % conf_file)
        return ""

def map_conf_file(conf_file, conffiles):
    # type: (str, Union[AbstractSet[str], Dict[str, str]]) -> str
    """Find respective conffile in a set of conffiles with some heuristics
    """
    if conf_file in conffiles:
        return conf_file
    elif os.path.join(conf_file, os.path.basename(conf_file)) in conffiles:
        # new /etc/foo may be old /etc/foo/foo, like in LP: #1822745
        return os.path.join(conf_file, os.path.basename(conf_file))
    elif os.path.dirname(conf_file) in conffiles:
        # new /etc/foo/foo may be old /etc/foo, probably by accident
        return os.path.dirname(conf_file)
    # TODO: peek into package's dpkg-maintscript-helper mv_conffile usage
    else:
        return None

# prefix is *only* needed for the build-in tests
def conffile_prompt(destFile, prefix=""):
    # type: (str, str) -> bool
    logging.debug("check_conffile_prompt(%s)" % destFile)
    pkgname = pkgname_from_deb(destFile)

# get the conffiles for the /var/lib/dpkg/status file
    status_file = apt_pkg.config.find("Dir::State::status")
    with open(status_file, "r") as f:
        tagfile = apt_pkg.TagFile(f)
        conffiles = ""
        for section in tagfile:
            if section.get("Package") == pkgname:
                logging.debug("found pkg: %s" % pkgname)
                if "Conffiles" in section:
                    conffiles = section.get("Conffiles")
                    break

# get conffile value from pkg, its ok if the new version
    # does not have conffiles anymore
    pkg_conffiles = set()  # type: AbstractSet[str]
    try:
        deb = apt_inst.DebFile(destFile)
        pkg_conffiles = set(deb.control.extractdata(
            "conffiles").strip().decode("utf-8").split("\n"))
    except SystemError as e:
        print(_("Apt returned an error, exiting"))
        print(_("error message: %s") % e)
        logging.error(_("Apt returned an error, exiting"))
        logging.error(_("error message: %s"), e)
        raise
    except LookupError as e:
        logging.debug("No conffiles in deb %s (%s)" % (destFile, e))
    if not pkg_conffiles:
        return False

# Conffiles:
    #  /etc/bash_completion.d/m-a c7780fab6b14d75ca54e11e992a6c11c
    dpkg_status_conffiles = {}
    for line in conffiles.splitlines():
        # ignore empty lines
        line = line.strip()
        if not line:
            continue
        # show what we do
        logging.debug("conffile line: %s", line)
        li = line.split()
        conf_file = li[0]
        md5 = li[1]
        if len(li) > 2:
            obs = li[2]
        else:
            obs = None
        # ignore if conffile is obsolete
        if obs == "obsolete":
            continue
        # ignore state "newconffile" until its clearer if there
        # might be a dpkg prompt (LP: #936870)
        if md5 == "newconffile":
            continue
        new_conf_file = map_conf_file(conf_file, pkg_conffiles)
        if not new_conf_file:
            logging.debug("%s not in package conffiles %s" % (
                conf_file, pkg_conffiles))
            continue
        # record for later
        dpkg_status_conffiles[conf_file] = md5

# test against the installed file, if the local file got deleted
        # by the admin thats ok but it may still trigger a conffile prompt
        # (see debian #788049)
        current_md5 = get_md5sum_for_file_installed(conf_file, prefix)
        logging.debug("current md5: %s" % current_md5)

# hashes are the same, no conffile prompt
        if current_md5 == md5:
            continue
        # calculate md5sum from the deb (may take a bit)
        pkg_md5sum = get_md5sum_for_file_in_deb(destFile, new_conf_file)
        logging.debug("pkg_md5sum: %s" % pkg_md5sum)
        # the md5sum in the deb is unchanged, this will not
        # trigger a conffile prompt
        if pkg_md5sum == md5:
            continue
        # if we made it to this point:
        #  current_md5 != pkg_md5sum != md5
        # and that will trigger a conffile prompt, we can
        # stop processing at this point and just return True
        return True

# now check if there are conffiles in the pkg that where not there
    # in the previous version in the dpkg status file
    if pkg_conffiles:
        for conf_file in pkg_conffiles:
            old_conf_file = map_conf_file(conf_file, dpkg_status_conffiles)
            if not old_conf_file:
                pkg_md5sum = get_md5sum_for_file_in_deb(destFile, conf_file)
                current_md5 = get_md5sum_for_file_installed(conf_file, prefix)
                if current_md5 != "" and pkg_md5sum != current_md5:
                    return True
    return False

def dpkg_conffile_prompt():
    # type: () -> bool
    if "DPkg::Options" not in apt_pkg.config:
        return True
    options = apt_pkg.config.value_list("DPkg::Options")
    for option in options:
        option = option.strip()
        if option in ["--force-confold", "--force-confnew"]:
            return False
    return True

def rewind_cache(cache, pkgs_to_upgrade):
    # type: (UnattendedUpgradesCache, List[apt.Package]) -> None
    """ set the cache back to the state with packages_to_upgrade """
    cache.clear()
    for pkg2 in pkgs_to_upgrade:
        cache.mark_install_adjusted(pkg2, from_user=not pkg2.is_auto_installed)
    if cache.broken_count > 0:
        raise AssertionError("rewind_cache created a broken cache")

def host():
    # type: () -> str
    return socket.getfqdn()

def wrap_indent(t, subsequent_indent=" "):
    # type: (str, str) -> str
    return "\n".join(wrap(t, break_on_hyphens=False,
                          subsequent_indent=subsequent_indent))

def setup_apt_listchanges(conf="/etc/apt/listchanges.conf"):
    # type: (str) -> None
    """ deal with apt-listchanges """
    # apt-listchanges will always send a mail if there is a mail address
    # set in the config regardless of the frontend used, so set it to
    # mail if we have a sendmail and to none if not (as it appears to
    # not check if sendmail is there or not), debian bug #579733
    if os.path.exists(SENDMAIL_BINARY):
        os.environ["APT_LISTCHANGES_FRONTEND"] = "mail"
    else:
        os.environ["APT_LISTCHANGES_FRONTEND"] = "none"

def _send_mail_using_mailx(from_address, to_address, subject, body):
    # type: (str, str, str, str) -> int
    # ensure that the body is a byte stream and that we do not
    # break on encoding errors (the default error mode is "strict")
    encoded_body = body.encode(
        locale.getpreferredencoding(False), errors="replace")
    # we use a binary pipe to stdin to ensure we do not break on
    # unicode encoding errors (e.g. because the user is running a
    # ascii only system like the buildds)
    mail = subprocess.Popen(
        [MAIL_BINARY, "-r", from_address, "-s", subject, to_address],
        stdin=subprocess.PIPE, universal_newlines=False)
    mail.stdin.write(encoded_body)
    mail.stdin.close()
    ret = mail.wait()
    return ret

def _send_mail_using_sendmail(from_address, to_address, subject, body):
    # type: (str, str, str, str) -> int
    # format as a proper mail
    msg = Message()
    msg['Subject'] = subject
    msg['From'] = from_address
    msg['To'] = to_address
    msg['Auto-Submitted'] = "auto-generated"
    # order is important here, Message() first, then Charset()
    #  then msg.set_charset()
    charset = email.charset.Charset("utf-8")
    charset.body_encoding = email.charset.QP  # type: ignore
    msg.set_payload(body, charset)
    # and send it away
    sendmail = subprocess.Popen(
        [SENDMAIL_BINARY, "-oi", "-t"],
        stdin=subprocess.PIPE, universal_newlines=True)
    sendmail.stdin.write(msg.as_string())
    sendmail.stdin.close()
    ret = sendmail.wait()
    return ret

def send_summary_mail(pkgs,                 # type: List[str]
                      res,                  # type: bool
                      result_str,           # type: str
                      pkgs_kept_back,       # type: KeptPkgs
                      pkgs_removed,         # type: List[str]
                      pkgs_kept_installed,  # type: List[str]
                      mem_log,              # type: StringIO
                      dpkg_log_content,     # type: str
                      ):
    # type: (...) -> None
    """ send mail (if configured in Unattended-Upgrade::Mail) """
    to_email = apt_pkg.config.find("Unattended-Upgrade::Mail", "")
    if not to_email:
        return
    if not os.path.exists(MAIL_BINARY) and not os.path.exists(SENDMAIL_BINARY):
        logging.error(_("No /usr/bin/mail or /usr/sbin/sendmail, "
                        "can not send mail. "
                        "You probably want to install the mailx package."))
        return

# The admin may well wish to get a mail report regardless of what was done.
    # This is now set by Unattended-Upgrade::MailReport values of:
    #       "always", "only-on-error" or "on-change"
    # (you can achieve "never" by not setting Unattended-Upgrade::Mail).
    # If this is not set, then set it using any legacy MailOnlyOnError
    # setting (default True)
    #
    mail_opt = apt_pkg.config.find("Unattended-Upgrade::MailReport")
    if (mail_opt == ""):    # None set - map from legacy value
        if apt_pkg.config.find_b("Unattended-Upgrade::MailOnlyOnError", False):
            mail_opt = "only-on-error"
        else:
            mail_opt = "on-change"

# if the operation was successful and the user has requested to get
    # mails only on errors, just exit here
    if (res and (mail_opt == "only-on-error")):
        return

# if the run was successful but nothing had to be done skip sending email
    # unless the admin wants it anyway
    if (((mail_opt != "always") and res and not pkgs and not pkgs_kept_back
         and not pkgs_removed)):
        return

# Check if reboot-required flag is present
    reboot_flag_str = _(
        "[reboot required]") if os.path.isfile(REBOOT_REQUIRED_FILE) else ""
    # Check if packages are kept on hold
    hold_flag_str = (_("[package on hold]") if pkgs_kept_back
                     or pkgs_kept_installed else "")
    logging.debug("Sending mail to %s" % to_email)
    subject = _(
        "{hold_flag}{reboot_flag} unattended-upgrades result for "
        "{machine}: {result}").format(
            hold_flag=hold_flag_str, reboot_flag=reboot_flag_str,
            machine=host(), result="SUCCESS" if res else "FAILURE").strip()
    body = wrap_indent(_("Unattended upgrade result: %s") % result_str)
    body += "\n\n"
    if os.path.isfile(REBOOT_REQUIRED_FILE):
        body += _(
            "Warning: A reboot is required to complete this upgrade, "
            "or a previous one.\n\n")
    if pkgs:
        if res:
            body += _("Packages that were upgraded:\n")
        else:
            body += _("Packages that attempted to upgrade:\n")
        body += " " + wrap_indent(" ".join(pkgs))
        body += "\n\n"
    if pkgs_kept_back:
        body += _("Packages with upgradable origin but kept back:\n")
        for origin, origin_pkgs in pkgs_kept_back.items():
            body += " " + origin + ":\n"
            body += "  " + wrap_indent(" ".join(origin_pkgs),
                                       subsequent_indent="  ") + "\n"
        body += "\n"
    if pkgs_removed:
        body += _("Packages that were auto-removed:\n")
        body += " " + wrap_indent(" ".join(pkgs_removed))
        body += "\n\n"
    if pkgs_kept_installed:
        body += _("Packages that were kept from being auto-removed:\n")
        body += " " + wrap_indent(" ".join(pkgs_kept_installed))
        body += "\n\n"
    if dpkg_log_content:
        body += _("Package installation log:") + "\n"
        body += dpkg_log_content
        body += "\n\n"
    body += _("Unattended-upgrades log:\n")
    body += mem_log.getvalue()

from_email = apt_pkg.config.find("Unattended-Upgrade::Sender", "root")

if os.path.exists(SENDMAIL_BINARY):
        ret = _send_mail_using_sendmail(from_email, to_email, subject, body)
    elif os.path.exists(MAIL_BINARY):
        ret = _send_mail_using_mailx(from_email, to_email, subject, body)
    else:
        raise AssertionError(
            "This should never be reached as we previously validated that we "
            "either have sendmail or mailx. Maybe they've been removed in "
            "this right moment?")
    logging.debug("mail returned: %s", ret)

def do_install(cache,             # type: UnattendedUpgradesCache
               pkgs_to_upgrade,   # type: List[str]
               options,           # type: Options
               logfile_dpkg,      # type: str
               ):
    # type: (...) -> bool

setup_apt_listchanges()

logging.info(_("Writing dpkg log to %s"), logfile_dpkg)

if cache.get_changes():
        cache.clear()

pkg_install_success = False
    try:
        if options.minimal_upgrade_steps:
            # try upgrade all "pkgs" in minimal steps
            pkg_install_success = upgrade_in_minimal_steps(
                cache, pkgs_to_upgrade,
                logfile_dpkg,
                options.verbose or options.debug)
        else:
            mark_pkgs_to_upgrade(cache, pkgs_to_upgrade)
            pkg_install_success = upgrade_normal(
                cache, logfile_dpkg, options.verbose or options.debug)
    except Exception as e:
        # print unhandled exceptions here this way, while stderr is redirected
        os.write(2, ("Exception: %s\n" % e).encode('utf-8'))
        pkg_install_success = False

return pkg_install_success

def _setup_alternative_rootdir(rootdir):
    # type: (str) -> None
    # clear system unattended-upgrade stuff
    apt_pkg.config.clear("Unattended-Upgrade")
    # read rootdir (taken from apt.Cache, but we need to run it
    # here before the cache gets initialized
    if os.path.exists(rootdir + "/etc/apt/apt.conf"):
        apt_pkg.read_config_file(apt_pkg.config,
                                 rootdir + "/etc/apt/apt.conf")
    if os.path.isdir(rootdir + "/etc/apt/apt.conf.d"):
        apt_pkg.read_config_dir(apt_pkg.config,
                                rootdir + "/etc/apt/apt.conf.d")
    logdir = os.path.join(rootdir, "var", "log", "unattended-upgrades")
    if not os.path.exists(logdir):
        os.makedirs(logdir)
    apt.apt_pkg.config.set("Unattended-Upgrade::LogDir", logdir)

def _get_logdir():
    # type: () -> str
    logdir = apt_pkg.config.find_dir(
        "Unattended-Upgrade::LogDir",
        # COMPAT only
        apt_pkg.config.find_dir("APT::UnattendedUpgrades::LogDir",
                                "/var/log/unattended-upgrades/"))
    return logdir

def _setup_logging(options):
    # type: (Options) -> StringIO

# ensure this is run only once
    if len(logging.root.handlers) > 0:
        return None

# init the logging
    logdir = _get_logdir()
    logfile = os.path.join(
        logdir,
        apt_pkg.config.find(
            "Unattended-Upgrade::LogFile",
            # COMPAT only
            apt_pkg.config.find("APT::UnattendedUpgrades::LogFile",
                                "unattended-upgrades.log")))
    if not options.dry_run and not os.path.exists(logdir):
        os.makedirs(logdir)

logging.basicConfig(level=logging.INFO,
                        format='%(asctime)s %(levelname)s %(message)s',
                        filename=logfile)
    # additional logging
    logger = logging.getLogger()
    mem_log = StringIO()
    if options.apt_debug:
        apt_pkg.config.set("Debug::pkgProblemResolver", "1")
        apt_pkg.config.set("Debug::pkgDepCache::AutoInstall", "1")
    if options.debug:
        logger.setLevel(logging.DEBUG)
        stdout_handler = logging.StreamHandler(sys.stdout)
        logger.addHandler(stdout_handler)
    elif options.verbose:
        logger.setLevel(logging.INFO)
        stdout_handler = logging.StreamHandler(sys.stdout)
        logger.addHandler(stdout_handler)
    if apt_pkg.config.find("Unattended-Upgrade::Mail", ""):
        mem_log_handler = logging.StreamHandler(mem_log)
        logger.addHandler(mem_log_handler)
    # Configure syslog if necessary
    syslogEnable = apt_pkg.config.find_b("Unattended-Upgrade::SyslogEnable",
                                         False)
    if syslogEnable:
        syslogFacility = apt_pkg.config.find(
            "Unattended-Upgrade::SyslogFacility",
            "daemon")
        syslogHandler = logging.handlers.SysLogHandler(
            address='/dev/log',
            facility=syslogFacility)  # type: ignore
        syslogHandler.setFormatter(
            logging.Formatter("unattended-upgrade: %(message)s"))
        known = syslogHandler.facility_names.keys()  # type: ignore
        if syslogFacility.lower() in known:
            logger.addHandler(syslogHandler)
            logging.info("Enabled logging to syslog via %s facility "
                         % syslogFacility)
        else:
            logging.warning("Syslog facility %s was not found"
                            % syslogFacility)
    return mem_log

def logged_in_users():
    # type: () -> AbstractSet[str]
    """Return a list of logged in users"""
    # the "users" command always returns a single line with:
    # "user1, user1, user2"
    users = subprocess.check_output(
        USERS, universal_newlines=True).rstrip('\n')
    return set(users.split())

def reboot_if_requested_and_needed():
    # type: () -> None
    """auto-reboot (if required and the config for this is set)"""
    if not os.path.exists(REBOOT_REQUIRED_FILE):
        return
    if not apt_pkg.config.find_b(
            "Unattended-Upgrade::Automatic-Reboot", False):
        return
    # see if we need to check for logged in users
    if not apt_pkg.config.find_b(
            "Unattended-Upgrade::Automatic-Reboot-WithUsers", True):
        users = logged_in_users()
        if users:
            msg = gettext.ngettext(
                "Found %s, but not rebooting because %s is logged in." % (
                    REBOOT_REQUIRED_FILE, users),
                "Found %s, but not rebooting because %s are logged in." % (
                    REBOOT_REQUIRED_FILE, users),
                len(users))
            logging.warning(msg)
            return
    # reboot at the specified time
    when = apt_pkg.config.find(
        "Unattended-Upgrade::Automatic-Reboot-Time", "now")
    logging.warning("Found %s, rebooting" % REBOOT_REQUIRED_FILE)
    cmd = ["/sbin/shutdown", "-r", when]
    try:
        shutdown_msg = subprocess.check_output(cmd, stderr=subprocess.STDOUT)
        if shutdown_msg.strip():
            logging.warning("Shutdown msg: %s", shutdown_msg.strip())
    except Exception as e:
        logging.error("Failed to issue shutdown: %s", e)

def write_stamp_file():
    # type: () -> None
    statedir = os.path.join(apt_pkg.config.find_dir("Dir::State"), "periodic")
    if not os.path.exists(statedir):
        os.makedirs(statedir)
    with open(os.path.join(statedir, "unattended-upgrades-stamp"), "w"):
        pass

def try_to_upgrade(pkg,               # type: apt.Package
                   pkgs_to_upgrade,   # type: List[apt.Package]
                   cache,             # type: UnattendedUpgradesCache
                   ):
    # type: (...) -> None
    try:
        try:
            # try to adjust pkg itself first, if that throws an exception it
            # can't be upgraded on its own
            cache.adjust_candidate(pkg)
            if not pkg.is_upgradable and not apt_pkg.config.find_b(
                    "Unattended-Upgrade::Allow-downgrade", False):
                return
        except NoAllowedOriginError:
            return
        cache._cached_candidate_pkgnames.add(pkg.name)
        cache.mark_upgrade_adjusted(pkg, from_user=not pkg.is_auto_installed)
        if check_changes_for_sanity(cache, pkg):
            # add to packages to upgrade
            pkgs_to_upgrade.append(pkg)
        else:
            rewind_cache(cache, pkgs_to_upgrade)
    except (SystemError, NoAllowedOriginError) as e:
        # can't upgrade
        logging.warning(
            _("package %s upgradable but fails to "
                "be marked for upgrade (%s)"), pkg.name, e)
        rewind_cache(cache, pkgs_to_upgrade)

def candidate_version_changed(pkg,               # type: apt.Package
                              ):
    return (pkg.is_installed and pkg.candidate
            and pkg.candidate.version != pkg.installed.version
            and apt_pkg.config.find_b(
                'Unattended-Upgrade::Allow-downgrade', False))

def calculate_upgradable_pkgs(cache,            # type: UnattendedUpgradesCache
                              options,          # type: Options
                              ):
    # type: (...) -> List[apt.Package]
    pkgs_to_upgrade = []  # type: List[apt.Package]

# now do the actual upgrade
    for pkg in cache:
        if options.debug and pkg.is_upgradable \
           or candidate_version_changed(pkg):
            logging.debug("Checking: %s (%s)" % (
                pkg.name, getattr(pkg.candidate, "origins", [])))

if (pkg.is_upgradable or candidate_version_changed(pkg)
           and is_pkgname_in_whitelist(pkg.name, cache.whitelist)):
            try:
                ver_in_allowed_origin(pkg, cache.allowed_origins)
            except NoAllowedOriginError:
                continue
            try_to_upgrade(pkg,
                           pkgs_to_upgrade,
                           cache)

if cache.get_changes():
        cache.clear()

return pkgs_to_upgrade

def get_dpkg_log_content(logfile_dpkg, install_start_time):
    # type: (str, datetime.datetime) -> str
    logging.debug("Extracting content from %s since %s" % (
        logfile_dpkg, install_start_time))
    content = []
    found_start = False
    try:
        with io.open(logfile_dpkg, encoding='utf-8', errors='replace') as fp:
            # read until we find the last "Log started: "
            for line in fp.readlines():
                # scan for the first entry we need (minimal-step mode
                # creates a new stanza for each individual install)
                if not found_start and line.startswith("Log started: "):
                    stanza_start = LoggingDateTime.from_string(
                        line[len("Log started: "):-1])
                    if stanza_start >= install_start_time:
                        found_start = True
                if found_start:
                    # skip progress indicator until #860931 is fixed in apt
                    # and dpkg
                    if re.match(
                            "^\\(Reading database \\.\\.\\. ()|([0-9]+%)$",
                            line):
                        continue
                    content.append(line)
        return "".join(content)
    except FileNotFoundError:
        return ""

def get_auto_removable(cache):
    # type: (apt.Cache) -> AbstractSet[str]
    return {pkg.name for pkg in cache
            if pkg.is_auto_removable}

def is_autoremove_valid(cache,           # type: UnattendedUpgradesCache
                        pkgname,         # type: str
                        auto_removable,  # type: AbstractSet[str]
                        ):
    # type: (...) -> bool
    changes = cache.get_changes()
    if not changes:
        # package is already removed
        return True
    pkgnames = {pkg.name for pkg in changes}
    for pkg in changes:
        if not is_pkg_change_allowed(pkg, cache.blacklist, cache.whitelist,
                                     cache.strict_whitelist):
            logging.warning(
                _("Keeping the following auto-removable package(s) because "
                  "they include %s which is set to be kept unmodified: %s"),
                pkg.name, " ".join(sorted(pkgnames)))
            return False
    if not pkgnames.issubset(auto_removable):
        if pkgname != "":
            logging.warning(
                _("Keeping auto-removable %s package(s) because it would"
                  " also remove the following packages which should "
                  "be kept in this step: %s"), pkgname,
                " ".join(sorted(pkgnames - auto_removable)))
        else:
            logging.warning(
                _("Keeping %s auto-removable package(s) because it would"
                  " also remove the following packages which should "
                  "be kept in this step: %s"), len(auto_removable),
                " ".join(sorted(pkgnames - auto_removable)))

return False
    for packagename in pkgnames:
        if cache.running_kernel_pkgs_regexp and \
           cache.running_kernel_pkgs_regexp.match(packagename):
            logging.warning(
                _("Keeping the following auto-removable package(s) because "
                  "they include %s which package is related to the running "
                  "kernel: %s"), packagename, " ".join(sorted(pkgnames)))
            return False
    if cache.install_count > 0:
        logging.error(
            "The following packages are marked for installation or upgrade "
            "which is not allowed when performing autoremovals: %s",
            " ".join([pkg.name for pkg in changes if not pkg.marked_delete]))
        return False
    return True

def do_auto_remove(cache,             # type: UnattendedUpgradesCache
                   auto_removable,    # type: AbstractSet[str]
                   logfile_dpkg,      # type: str
                   minimal_steps,     # type: bool
                   verbose=False,     # type: bool
                   dry_run=False      # type: bool
                   ):
    # type: (...) -> Tuple[bool, List[str], List[str]]
    res = True
    if not auto_removable:
        return (res, [], [])

pkgs_removed = []         # type: List[str]
    pkgs_kept_installed = []  # type: List[str]
    if minimal_steps:
        for pkgname in auto_removable:
            if should_stop():
                pkgs_kept_installed = list(auto_removable - set(pkgs_removed))
                return (False, pkgs_removed, pkgs_kept_installed)
            logging.debug("marking %s for removal" % pkgname)
            if pkgname in pkgs_removed:
                continue
            cache[pkgname].mark_delete()
            if not is_autoremove_valid(cache, pkgname, auto_removable):
                # this situation can occur when removing newly unused packages
                # would also remove old unused packages which are not set
                # for removal, thus getting there is not handled as an error
                pkgs_kept_installed.append(pkgname)
                cache.clear()
                continue
            if not dry_run:
                changes = cache.get_changes()
                pkgnames = {pkg.name for pkg in changes}
                res, error = cache_commit(cache, logfile_dpkg, verbose)
                if not res:
                    break
                pkgs_removed.extend(pkgnames)
            else:
                cache.clear()
    else:
        for pkgname in auto_removable:
            cache[pkgname].mark_delete()
        if is_autoremove_valid(cache, "", auto_removable):
            # do it in one step
            if not dry_run:
                res, error = cache_commit(cache, logfile_dpkg, verbose)
            else:
                cache.clear()
        else:
            cache.clear()

if res:
        logging.info(_("Packages that were successfully auto-removed: %s"),
                     " ".join(sorted(pkgs_removed)))
        logging.info(_("Packages that are kept back: %s"),
                     " ".join(sorted(pkgs_kept_installed)))
    if not res:
        cache.clear()
        logging.error(_("Auto-removing the packages failed!"))
        logging.error(_("Error message: %s"), error)
        logging.error(_("dpkg returned an error! See %s for details"),
                      logfile_dpkg)
    return (res, pkgs_removed, pkgs_kept_installed)

def clean_downloaded_packages(fetcher):
    # type: (apt_pkg.Acquire) -> None
    archivedir = os.path.dirname(
        apt_pkg.config.find_dir("Dir::Cache::archives"))
    for item in fetcher.items:
        if os.path.dirname(os.path.abspath(item.destfile)) == archivedir:
            try:
                os.unlink(item.destfile)
            except OSError:
                pass

def is_update_day():
    # type: () -> bool
    # check if patch days are configured
    patch_days = apt_pkg.config.value_list("Unattended-Upgrade::Update-Days")
    if not patch_days:
        return True
    # validate patch days
    today = date.today()
    # abbreviated localized dayname
    if today.strftime("%a") in patch_days:
        return True
    # full localized dayname
    if today.strftime("%A") in patch_days:
        return True
    # by number (Sun: 0, Mon: 1, ...)
    if today.strftime("%w") in patch_days:
        return True
    # today is not a patch day
    logging.info(
        "Skipping update check: today is %s,%s,%s but patch days are %s",
        today.strftime("%w"), today.strftime("%a"), today.strftime("%A"),
        ", ".join(patch_days))
    return False

def update_kept_pkgs_file(kept_pkgs, kept_file):
    # type: (DefaultDict[str, List[str]], str) -> None
    if kept_pkgs:
        pkgs_all_origins = set()
        for origin_pkgs in kept_pkgs.values():
            pkgs_all_origins.update(origin_pkgs)
        try:
            with open(kept_file, "w") as kf:
                kf.write(" ".join(sorted(pkgs_all_origins)))
        except FileNotFoundError:
            logging.error(_("Could not open %s for saving list of packages "
                            "kept back." % kept_file))
    else:
        if os.path.exists(kept_file):
            os.remove(kept_file)

def main(options, rootdir="/"):
    # type: (Options, str) -> int
    # useful for testing
    if not rootdir == "/":
        _setup_alternative_rootdir(rootdir)

# see debian #776752
    install_start_time = datetime.datetime.now().replace(microsecond=0)

# setup logging
    mem_log = _setup_logging(options)
    # get log
    logfile_dpkg = os.path.join(_get_logdir(), 'unattended-upgrades-dpkg.log')
    if not os.path.exists(logfile_dpkg):
        with open(logfile_dpkg, 'w'):
            pass

# lock for the shutdown check
    shutdown_lock = apt_pkg.get_lock(LOCK_FILE)
    if shutdown_lock < 0:
        logging.error("Lock file is already taken, exiting")
        return 1

try:
        res = run(options, rootdir, mem_log, logfile_dpkg,
                  install_start_time)

if res.success and res.result_str:
            # complete, successful run
            update_kept_pkgs_file(res.pkgs_kept_back,
                                  os.path.join(rootdir, KEPT_PACKAGES_FILE))

if res.result_str and not options.dry_run:
            # there is some meaningful result which is worth an email
            log_content = get_dpkg_log_content(logfile_dpkg,
                                               install_start_time)
            send_summary_mail(res.pkgs, res.success, res.result_str,
                              res.pkgs_kept_back, res.pkgs_removed,
                              res.pkgs_kept_installed, mem_log,
                              log_content)
        if res.update_stamp:
            # write timestamp file
            write_stamp_file()
            if not options.dry_run:
                # check if the user wants a reboot
                reboot_if_requested_and_needed()
        os.close(shutdown_lock)
        if res.success:
            return 0
        else:
            return 1

except Exception as e:
        logger = logging.getLogger()
        logger.exception(_("An error occurred: %s"), e)
        log_content = get_dpkg_log_content(logfile_dpkg,
                                           install_start_time)
        if not options.dry_run:
            send_summary_mail(["<unknown>"], False, _("An error occurred"),
                              None, [], [], mem_log, log_content)
        # Re-raise exceptions for apport
        raise

def mark_pkgs_to_upgrade(cache, pkgs_to_upgrade):
    # type (apt.Cache, List[str]) -> None
    for pkg_name in pkgs_to_upgrade:
        pkg = cache[pkg_name]
        if pkg.is_upgradable \
           or (pkg.is_installed
               and pkg.candidate.version != pkg.installed.version) \
            and apt_pkg.config.find_b("Unattended-Upgrade::Allow-downgrade",
                                      False):
            cache.mark_upgrade_adjusted(pkg,
                                        from_user=not pkg.is_auto_installed)
        elif not pkg.is_installed:
            cache.mark_install_adjusted(pkg, from_user=False)

def run(options,             # type: Options
        rootdir,             # type: str
        mem_log,             # type: StringIO
        logfile_dpkg,        # type: str
        install_start_time,  # type: datetime.datetime
        ):
    # type: (...) -> UnattendedUpgradesResult

# check if today is a patch day
    if not is_update_day():
        return UnattendedUpgradesResult(True)

# check if u-u should be stopped already
    if should_stop():
        return UnattendedUpgradesResult(False)

# check to see if want to auto-upgrade the devel release
    if apt_pkg.config.find("Unattended-Upgrade::DevRelease") == "auto":
        try:
            if DISTRO_ID.lower() == 'ubuntu':
                devel = (distro_info.UbuntuDistroInfo() .
                         devel(result="object"))
            elif DISTRO_ID.lower() == 'debian':
                devel = (distro_info.DebianDistroInfo() .
                         devel(result="object"))
            else:
                devel = (distro_info.DistroInfo(DISTRO_ID) .
                         devel(result="object"))
        except Exception as e:
            logging.warning("Could not figure out development release: %s" % e)
        else:
            if ((devel.series == DISTRO_CODENAME
                 and devel.release is not None
                 and devel.release - date.today() > DEVEL_UNTIL_RELEASE)):
                syslog.syslog((_("Not running on this development "
                                 "release before %s") %
                              (devel.release - DEVEL_UNTIL_RELEASE
                               - datetime.timedelta(days=1))))
                logging.warning(_("Not running on this development "
                                  "release before %s") %
                                (devel.release - DEVEL_UNTIL_RELEASE
                                 - datetime.timedelta(days=1)))
                return UnattendedUpgradesResult(True)

logging.debug("Running on the development release")
    elif "(development branch)" in DISTRO_DESC and not\
            apt_pkg.config.find_b("Unattended-Upgrade::DevRelease", True):
        syslog.syslog(_("Not running on the development release."))
        logging.info(_("Not running on the development release."))
        return UnattendedUpgradesResult(True)

logging.info(_("Starting unattended upgrades script"))

# check and get lock
    try:
        apt_pkg.pkgsystem_lock()
    except SystemError:
        logging.error(_("Lock could not be acquired (another package "
                        "manager running?)"))
        print(_("Cache lock can not be acquired, exiting"))
        return UnattendedUpgradesResult(
            False, _("Lock could not be acquired"))

# check if the journal is dirty and if so, take emergceny action
    # the alternative is to leave the system potentially unsecure until
    # the user comes in and fixes
    if is_dpkg_journal_dirty() and \
       apt_pkg.config.find_b("Unattended-Upgrade::AutoFixInterruptedDpkg",
                             True):
        logging.warning(
            _("Unclean dpkg state detected, trying to correct"))
        print(_("Unclean dpkg state detected, trying to correct"))
        env = copy.copy(os.environ)
        env["DPKG_FRONTEND_LOCKED"] = "1"
        try:
            with Unlocked():
                output = subprocess.check_output(
                    ["dpkg", "--force-confold", "--configure", "-a"],
                    env=env,
                    universal_newlines=True)
        except subprocess.CalledProcessError as e:
            output = e.output
        logging.warning(_("dpkg --configure -a output:\n%s"), output)

# get a cache
    try:
        cache = UnattendedUpgradesCache(rootdir=rootdir)
    except SystemError as error:
        print(_("Apt returned an error, exiting"))
        print(_("error message: %s") % error)
        logging.error(_("Apt returned an error, exiting"))
        logging.error(_("error message: %s"), error)
        return UnattendedUpgradesResult(
            False, _("Apt returned an error, exiting"))

if cache._depcache.broken_count > 0:
        print(_("Cache has broken packages, exiting"))
        logging.error(_("Cache has broken packages, exiting"))
        return UnattendedUpgradesResult(
            False, _("Cache has broken packages, exiting"))

# FIXME: make this into a ContextManager
    # be nice when calculating the upgrade as its pretty CPU intensive
    old_priority = os.nice(0)
    try:
        # Check that we will be able to restore the priority
        os.nice(-1)
        os.nice(20)
    except OSError as e:
        if e.errno in (errno.EPERM, errno.EACCES):
            pass
        else:
            raise

auto_removable = get_auto_removable(cache)

# find out about the packages that are upgradable (in an allowed_origin)
    pkgs_to_upgrade = calculate_upgradable_pkgs(cache, options)
    pkgs_to_upgrade.sort(key=lambda p: p.name)
    pkgs = [pkg.name for pkg in pkgs_to_upgrade]
    logging.debug("pkgs that look like they should be upgraded: %s"
                  % "\n".join(pkgs))

# FIXME: make this into a ContextManager
    # stop being nice
    os.nice(old_priority - os.nice(0))

# download what looks good
    mark_pkgs_to_upgrade(cache, pkgs)

if options.debug:
        fetcher = apt_pkg.Acquire(apt.progress.text.AcquireProgress())
    else:
        fetcher = apt_pkg.Acquire()
    list = apt_pkg.SourceList()
    list.read_main_list()
    recs = cache._records
    pm = apt_pkg.PackageManager(cache._depcache)
    # don't start downloading during shutdown
    # TODO: download files one by one and check for stop request after each of
    # them
    if should_stop():
        return UnattendedUpgradesResult(False, _("Upgrade was interrupted"))
    try:
        pm.get_archives(fetcher, list, recs)
    except SystemError as e:
        logging.error(_("GetArchives() failed: %s"), e)
    try:
        res = fetcher.run()
        logging.debug("fetch.run() result: %s", res)
    except SystemError as e:
        logging.error("fetch.run() result: %s", e)

if options.download_only:
        return UnattendedUpgradesResult(True)

if cache.get_changes():
        cache.clear()

pkg_conffile_prompt = False
    if dpkg_conffile_prompt():
        # now check the downloaded debs for conffile conflicts and build
        # a blacklist
        conffile_blacklist = []  # type: List[str]
        for item in fetcher.items:
            logging.debug("%s" % item)
            if item.status == item.STAT_ERROR:
                print(_("An error occurred: %s") % item.error_text)
                logging.error(_("An error occurred: %s"), item.error_text)
            if not item.complete:
                print(_("The URI %s failed to download, aborting") %
                      item.desc_uri)
                logging.error(_("The URI %s failed to download, aborting"),
                              item.desc_uri)
                return UnattendedUpgradesResult(
                    False, (_("The URI %s failed to download, aborting") %
                            item.desc_uri))
            if not os.path.exists(item.destfile):
                print(_("Download finished, but file %s not there?!?") %
                      item.destfile)
                logging.error("Download finished, but file %s not "
                              "there?!?", item.destfile)
                return UnattendedUpgradesResult(
                    False, (_("Download finished, but file %s not there?!?") %
                            item.destfile))
            if not item.is_trusted and not apt_pkg.config.find_b(
                    "APT::Get::AllowUnauthenticated", False):
                logging.debug("%s is blacklisted because it is not trusted")
                pkg_name = pkgname_from_deb(item.destfile)
                if not is_pkgname_in_blacklist(pkg_name, cache.blacklist):
                    conffile_blacklist.append("%s$" % re.escape(pkg_name))
            if not is_deb(item.destfile):
                logging.debug("%s is not a .deb file" % item)
                continue
            if conffile_prompt(item.destfile):
                # skip package (means to re-run the whole marking again
                # and making sure that the package will not be pulled in by
                # some other package again!)
                #
                # print to stdout to ensure that this message is part of
                # the cron mail (only if no summary mail is requested)
                email = apt_pkg.config.find("Unattended-Upgrade::Mail", "")
                if not email:
                    print(_("Package %s has conffile prompt and needs "
                            "to be upgraded manually") %
                          pkgname_from_deb(item.destfile))
                # log to the logfile
                logging.warning(_("Package %s has conffile prompt and "
                                  "needs to be upgraded manually"),
                                pkgname_from_deb(item.destfile))
                pkg_name = pkgname_from_deb(item.destfile)
                if not is_pkgname_in_blacklist(pkg_name, cache.blacklist):
                    conffile_blacklist.append("%s$" % re.escape(pkg_name))
                pkg_conffile_prompt = True

# redo the selection about the packages to upgrade based on the new
        # blacklist
        logging.debug("Packages blacklist due to conffile prompts: %s"
                      % conffile_blacklist)
        # find out about the packages that are upgradable (in a allowed_origin)
        if len(conffile_blacklist) > 0:
            for regex in conffile_blacklist:
                cache.blacklist.append(regex)
            cache.apply_pinning(cache.pinning_from_regex_list(
                conffile_blacklist, NEVER_PIN))  # type: ignore
            old_pkgs_to_upgrade = pkgs_to_upgrade[:]
            pkgs_to_upgrade = []
            for pkg in old_pkgs_to_upgrade:
                logging.debug("Checking the black and whitelist: %s" %
                              (pkg.name))
                cache.mark_upgrade_adjusted(
                    pkg, from_user=not pkg.is_auto_installed)
                if check_changes_for_sanity(cache):
                    pkgs_to_upgrade.append(pkg)
                else:
                    logging.info(_("package %s not upgraded"), pkg.name)
                    cache.clear()
                    for pkg2 in pkgs_to_upgrade:
                        cache.call_adjusted(
                            apt.package.Package.mark_upgrade, pkg2,
                            from_user=not pkg2.is_auto_installed)
            if cache.get_changes():
                cache.clear()

else:
        logging.debug("dpkg is configured not to cause conffile prompts")

# auto-removals
    kernel_pkgs_remove_success = True  # type: bool
    kernel_pkgs_removed = []           # type: List[str]
    kernel_pkgs_kept_installed = []    # type: List[str]
    if (auto_removable and apt_pkg.config.find_b(
            "Unattended-Upgrade::Remove-Unused-Kernel-Packages", True)):
        # remove unused kernels before installing new ones because the newly
        # installed ones may fill up /boot and break the system right before
        # removing old ones could take place
        #
        # this step may also remove _auto-removable_ reverse dependencies
        # of kernel packages
        auto_removable_kernel_pkgs = {
            p for p in auto_removable
            if (cache.versioned_kernel_pkgs_regexp
                and cache.versioned_kernel_pkgs_regexp.match(p)
                and not cache.running_kernel_pkgs_regexp.match(p))}
        if auto_removable_kernel_pkgs:
            logging.info(_("Removing unused kernel packages: %s"),
                         " ".join(auto_removable_kernel_pkgs))
            (kernel_pkgs_remove_success,
             kernel_pkgs_removed,
             kernel_pkgs_kept_installed) = do_auto_remove(
                cache, auto_removable_kernel_pkgs, logfile_dpkg,
                options.minimal_upgrade_steps,
                options.verbose or options.debug, options.dry_run)
            auto_removable = get_auto_removable(cache)

previous_autoremovals = auto_removable
    if apt_pkg.config.find_b(
            "Unattended-Upgrade::Remove-Unused-Dependencies", False):
        pending_autoremovals = previous_autoremovals
    else:
        pending_autoremovals = set()

# exit if there is nothing to do and nothing to report
    if (len(pending_autoremovals) == 0
            and len(pkgs_to_upgrade) == 0):
        logging.info(_("No packages found that can be upgraded unattended "
                       "and no pending auto-removals"))

pkgs_kept_back = cache.find_kept_packages(options.dry_run)
        return UnattendedUpgradesResult(
            kernel_pkgs_remove_success,
            _("No packages found that can be upgraded unattended and no "
              "pending auto-removals"),
            pkgs_removed=kernel_pkgs_removed,
            pkgs_kept_back=pkgs_kept_back,
            pkgs_kept_installed=kernel_pkgs_kept_installed,
            update_stamp=True)

# check if its configured for install on shutdown, if so, the
    # environment UNATTENDED_UPGRADES_FORCE_INSTALL_ON_SHUTDOWN will
    # be set by the unatteded-upgrades-shutdown script
    if ("UNATTENDED_UPGRADES_FORCE_INSTALL_ON_SHUTDOWN" not in os.environ
        and apt_pkg.config.find_b(
            "Unattended-Upgrade::InstallOnShutdown", False)):
        logger = logging.getLogger()
        logger.debug("Configured to install on shutdown, so exiting now")
        return UnattendedUpgradesResult(True)

# check if we are in dry-run mode
    if options.dry_run:
        logging.info("Option --dry-run given, *not* performing real actions")
        apt_pkg.config.set("Debug::pkgDPkgPM", "1")

# do the install based on the new list of pkgs
    pkgs = [pkg.name for pkg in pkgs_to_upgrade]
    logging.info(_("Packages that will be upgraded: %s"), " ".join(pkgs))

# only perform install step if we actually have packages to install
    pkg_install_success = True
    if len(pkgs_to_upgrade) > 0:
        # do install
        pkg_install_success = do_install(cache,
                                         pkgs,
                                         options,
                                         logfile_dpkg)
    # Was the overall run succesful: only if everything installed
    # fine and nothing was held back because of a conffile prompt.
    successful_run = (kernel_pkgs_remove_success and pkg_install_success
                      and not pkg_conffile_prompt)

# now check if any auto-removing needs to be done
    if cache._depcache.broken_count > 0:
        print(_("Cache has broken packages, exiting"))
        logging.error(_("Cache has broken packages, exiting"))
        return UnattendedUpgradesResult(
            False, _("Cache has broken packages, exiting"), pkgs=pkgs)

# make sure we start autoremovals with a clear cache
    if cache.get_changes():
        cache.clear()

# the user wants *all* auto-removals to be removed
    # (unless u-u got signalled to stop gracefully quickly)
    pkgs_removed = []         # type: List[str]
    pkgs_kept_installed = []  # type: List[str]
    if ((apt_pkg.config.find_b(
            "Unattended-Upgrade::Remove-Unused-Dependencies", False)
         and not SIGNAL_STOP_REQUEST)):
        auto_removals = get_auto_removable(cache)
        (pkg_remove_success,
         pkgs_removed,
         pkgs_kept_installed) = do_auto_remove(
            cache, auto_removals, logfile_dpkg, options.minimal_upgrade_steps,
            options.verbose or options.debug,
            options.dry_run)
        successful_run = successful_run and pkg_remove_success
    # the user wants *only new* auto-removals to be removed
    elif apt_pkg.config.find_b(
            "Unattended-Upgrade::Remove-New-Unused-Dependencies", True):
        # calculate the new auto-removals
        new_pending_autoremovals = get_auto_removable(cache)
        auto_removals = new_pending_autoremovals - previous_autoremovals
        (pkg_remove_success,
         pkgs_removed,
         pkgs_kept_installed) = do_auto_remove(
            cache, auto_removals, logfile_dpkg, options.minimal_upgrade_steps,
            options.verbose or options.debug,
            options.dry_run)
        successful_run = successful_run and pkg_remove_success

logging.debug("InstCount=%i DelCount=%i BrokenCount=%i"
                  % (cache._depcache.inst_count,
                     cache._depcache.del_count,
                     cache._depcache.broken_count))

# clean after success install (if needed)
    keep_key = "Unattended-Upgrade::Keep-Debs-After-Install"
    if (not apt_pkg.config.find_b(keep_key, False)
            and not options.dry_run
            and pkg_install_success):
        clean_downloaded_packages(fetcher)

pkgs_kept_back = cache.find_kept_packages(options.dry_run)
    return UnattendedUpgradesResult(
        successful_run, _("All upgrades installed"), pkgs,
        pkgs_kept_back,
        kernel_pkgs_removed + pkgs_removed,
        kernel_pkgs_kept_installed + pkgs_kept_installed,
        update_stamp=True)

class Options:
    def __init__(self):
        self.download_only = False
        self.dry_run = False
        self.debug = False
        self.apt_debug = False
        self.verbose = False
        self.minimal_upgrade_steps = False

if __name__ == "__main__":
    localesApp = "unattended-upgrades"
    localesDir = "/usr/share/locale"
    gettext.bindtextdomain(localesApp, localesDir)
    gettext.textdomain(localesApp)

# set debconf to NON_INTERACTIVE
    os.environ["DEBIAN_FRONTEND"] = "noninteractive"

# this ensures the commandline is logged in /var/log/apt/history.log
    apt_pkg.config.set("Commandline::AsString", " ".join(sys.argv))

# COMPAT with the mispelling
    minimal_steps_default = (
        apt_pkg.config.find_b("Unattended-Upgrades::MinimalSteps", True)
        and apt_pkg.config.find_b("Unattended-Upgrade::MinimalSteps", True))

# init the options
    parser = OptionParser()
    parser.add_option("-d", "--debug",
                      action="store_true",
                      default=apt_pkg.config.find_b(
                          "Unattended-Upgrade::Debug", False),
                      help=_("print debug messages"))
    parser.add_option("", "--apt-debug",
                      action="store_true", default=False,
                      help=_("make apt/libapt print verbose debug messages"))
    parser.add_option("-v", "--verbose",
                      action="store_true",
                      default=apt_pkg.config.find_b(
                          "Unattended-Upgrade::Verbose", False),
                      help=_("print info messages"))
    parser.add_option("", "--dry-run",
                      action="store_true", default=False,
                      help=_("Simulation, download but do not install"))
    parser.add_option("", "--download-only",
                      action="store_true", default=False,
                      help=_("Only download, do not even try to install."))
    parser.add_option("", "--minimal-upgrade-steps",
                      action="store_true", default=minimal_steps_default,
                      help=_("Upgrade in minimal steps (and allow "
                             "interrupting with SIGTERM) (default)"))
    parser.add_option("", "--no-minimal-upgrade-steps",
                      action="store_false", default=minimal_steps_default,
                      dest="minimal_upgrade_steps",
                      help=_("Upgrade all packages together instead of in "
                             "smaller sets"))
    parser.add_option("", "--minimal_upgrade_steps",
                      action="store_true",
                      help=SUPPRESS_HELP,
                      default=minimal_steps_default)
    options = cast(Options, (parser.parse_args())[0])

if os.getuid() != 0:
        print(_("You need to be root to run this application"))
        sys.exit(1)

# ensure that we are not killed when the terminal goes away e.g. on
    # shutdown
    signal.signal(signal.SIGHUP, signal.SIG_IGN)

# setup signal handler for graceful stopping
    signal.signal(signal.SIGTERM, signal_handler)

# write pid to let other processes find this one
    pidf = os.path.join(apt_pkg.config.find_dir("Dir"),
                        "var", "run", "unattended-upgrades.pid")
    # clean up pid file on exit
    with open(pidf, "w") as fp:
        fp.write("%s" % os.getpid())
    atexit.register(os.remove, pidf)

# run the main code
    sys.exit(main(options))

cmd: