X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/87ddfb96f760c0e14f205667c9d580b4b274cc5c..1350057372b095f718c0073a704f2c1960c04c81:/debian/apt.cron.daily diff --git a/debian/apt.cron.daily b/debian/apt.cron.daily index 466028ee5..26dfa2530 100644 --- a/debian/apt.cron.daily +++ b/debian/apt.cron.daily @@ -2,6 +2,33 @@ # #set -e +# +# This file understands the following apt configuration variables: +# +# "APT::Periodic::Update-Package-Lists=1" +# - Do "apt-get update" automatically every n-days (0=disable) +# +# "APT::Periodic::Download-Upgradeable-Packages=0", +# - Do "apt-get upgrade --download-only" every n-days (0=disable) +# +# "APT::Periodic::AutocleanInterval" +# - Do "apt-get autoclean" every n-days (0=disable) +# +# "APT::Archives::MaxAge", +# - Set maximum allowed age of a cache package file. If a cache +# package file is older it is deleted (0=disable) +# +# "APT::Archives::MaxSize", +# - Set maximum size of the cache in MB (0=disable). If the cache +# is bigger, cached package files are deleted until the size +# requirement is met (the biggest packages will be deleted +# first). +# +# "APT::Archives::MinAge" +# - Set minimum age of a package file. If a file is younger it +# will not be deleted (0=disable). Usefull to prevent races +# and to keep backups of the packages for emergency. +# check_stamp() { @@ -21,6 +48,11 @@ check_stamp() now=$(date --date=$(date --iso-8601) +%s) delta=$(($now-$stamp)) + # intervall is in days, + interval=$(($interval*60*60*24)) + #echo "stampfile: $1" + #echo "interval=$interval, now=$now, stamp=$stamp, delta=$delta" + if [ $delta -ge $interval ]; then return 0 fi @@ -42,10 +74,12 @@ check_size_constraints() { # min-age in days MaxAge=0 + MinAge=2 MaxSize=0 CacheDir="var/cache/apt" CacheArchive="archives/" eval $(apt-config shell MaxAge APT::Archives::MaxAge) + eval $(apt-config shell MinAge APT::Archives::MinAge) eval $(apt-config shell MaxSize APT::Archives::MaxSize) eval $(apt-config shell Dir Dir) eval $(apt-config shell CacheDir Dir::Cache) @@ -60,20 +94,47 @@ check_size_constraints() Cache="${Dir%/}/${CacheDir%/}/${CacheArchive%/}/" # check age - if [ ! $MaxAge -eq 0 ]; then - find $Cache -name "*.deb" -mtime +$MaxAge -print0 | xargs -r -0 rm -f + if [ ! $MaxAge -eq 0 ] && [ ! $MinAge -eq 0 ]; then + find $Cache -name "*.deb" \( -mtime +$MaxAge -and -ctime +$MaxAge \) -and -not \( -mtime -$MinAge -or -ctime -$MinAge \) -print0 | xargs -r -0 rm -f + elif [ ! $MaxAge -eq 0 ]; then + find $Cache -name "*.deb" -ctime +$MaxAge -and -mtime +$MaxAge -print0 | xargs -r -0 rm -f fi # check size if [ ! $MaxSize -eq 0 ]; then + # maxSize is in MB + MaxSize=$(($MaxSize*1024)) + + #get current time + now=$(date --date=$(date --iso-8601) +%s) + MinAge=$(($MinAge*24*60*60)) + # reverse-sort by mtime - for file in $(ls -rt $Cache/*.deb); do + for file in $(ls -rt $Cache/*.deb 2>/dev/null); do du=$(du -s $Cache) size=${du%%/*} # check if the cache is small enough if [ $size -lt $MaxSize ]; then break fi + + # check for MinAge of the file + if [ ! $MinAge -eq 0 ]; then + # check both ctime and mtime + mtime=$(stat -c %Y $file) + ctime=$(stat -c %Z $file) + if [ $mtime -gt $ctime ]; then + delta=$(($now-$mtime)) + else + delta=$(($now-$ctime)) + fi + #echo "$file ($delta), $MinAge" + if [ $delta -le $MinAge ]; then + #echo "Skiping $file (delta=$delta)" + break + fi + fi + # delete oldest file rm -f $file done @@ -81,9 +142,6 @@ check_size_constraints() } -# check cache size first -check_size_constraints - UpdateInterval=0 DownloadUpgradeableInterval=0 eval $(apt-config shell UpdateInterval APT::Periodic::Update-Package-Lists DownloadUpgradeableInterval APT::Periodic::Download-Upgradeable-Packages) @@ -123,3 +181,6 @@ if check_stamp $AUTOCLEAN_STAMP $AutocleanInterval; then apt-get -qq autoclean update_stamp $AUTOCLEAN_STAMP fi + +# check cache size +check_size_constraints