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Update mkimage-debootstrap with even more tweaks for keeping images tiny by more aggressively removing cache files and by not downloading apt-cache Translations files

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Tianon Gravi 2013-12-10 10:59:32 -07:00
parent 8814c11b14
commit 78b85220be
1 changed files with 10 additions and 2 deletions
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12
contrib/mkimage-debootstrap.sh
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@ -142,14 +142,22 @@ if [ -z "$strictDebootstrap" ]; then
# this forces dpkg not to call sync() after package extraction and speeds up install
# the benefit is huge on spinning disks, and the penalty is nonexistent on SSD or decent server virtualization
echo 'force-unsafe-io' | sudo tee etc/dpkg/dpkg.cfg.d/02apt-speedup > /dev/null
# we want to effectively run "apt-get clean" after every install to keep images small
echo 'DPkg::Post-Invoke {"/bin/rm -f /var/cache/apt/archives/*.deb || true";};' | sudo tee etc/apt/apt.conf.d/no-cache > /dev/null
# we want to effectively run "apt-get clean" after every install to keep images small (see output of "apt-get clean -s" for context)
{
aptGetClean='rm -f /var/cache/apt/archives/*.deb /var/cache/apt/archives/partial/*.deb /var/cache/apt/*.bin || true'
echo 'DPkg::Post-Invoke { "'$aptGetClean'"; };'
echo 'APT::Update::Post-Invoke { "'$aptGetClean'"; };'
echo 'Dir::Cache::pkgcache ""; Dir::Cache::srcpkgcache "";'
} | sudo tee etc/apt/apt.conf.d/no-cache > /dev/null
# and remove the translations, too
echo 'Acquire::Languages "none";' | sudo tee etc/apt/apt.conf.d/no-languages > /dev/null
# helpful undo lines for each the above tweaks (for lack of a better home to keep track of them):
# rm /usr/sbin/policy-rc.d
# rm /sbin/initctl; dpkg-divert --rename --remove /sbin/initctl
# rm /etc/dpkg/dpkg.cfg.d/02apt-speedup
# rm /etc/apt/apt.conf.d/no-cache
# rm /etc/apt/apt.conf.d/no-languages
if [ -z "$skipDetection" ]; then
# see also rudimentary platform detection in hack/install.sh