forked from josch/mmdebstrap
make_mirror.sh: only download new archives to save bandwidth
This commit is contained in:
parent
7412d5fbce
commit
a45eb846f7
1 changed files with 38 additions and 1 deletions
|
@ -27,7 +27,7 @@ done
|
|||
for dist in stable testing unstable; do
|
||||
rootdir=$(mktemp --directory)
|
||||
|
||||
for p in /etc/apt/apt.conf.d /etc/apt/sources.list.d /etc/apt/preferences.d /var/cache/apt /var/lib/apt/lists/partial /var/lib/dpkg; do
|
||||
for p in /etc/apt/apt.conf.d /etc/apt/sources.list.d /etc/apt/preferences.d /var/cache/apt/archives /var/lib/apt/lists/partial /var/lib/dpkg; do
|
||||
mkdir -p "$rootdir/$p"
|
||||
done
|
||||
|
||||
|
@ -51,6 +51,34 @@ END
|
|||
|
||||
APT_CONFIG="$rootdir/etc/apt/apt.conf" apt-get update
|
||||
|
||||
> "$rootdir/oldaptnames"
|
||||
# before downloading packages and before replacing the old Packages
|
||||
# file, copy all old *.deb packages from the mirror to
|
||||
# /var/cache/apt/archives so that apt will not re-download *.deb
|
||||
# packages that we already have
|
||||
if [ -e "$mirrordir/dists/$dist/main/binary-$nativearch/Packages.gz" ]; then
|
||||
gzip -dc "$mirrordir/dists/$dist/main/binary-$nativearch/Packages.gz" \
|
||||
| grep-dctrl --no-field-names --show-field=Package,Version,Architecture,Filename '' \
|
||||
| paste -sd " \n" \
|
||||
| while read name ver arch fname; do
|
||||
if [ ! -e "$mirrordir/$fname" ]; then
|
||||
continue
|
||||
fi
|
||||
# apt stores deb files with the colon encoded as %3a while
|
||||
# mirrors do not contain the epoch at all #645895
|
||||
case "$ver" in *:*) ver="${ver%%:*}%3a${ver#*:}";; esac
|
||||
aptname="$rootdir/var/cache/apt/archives/${name}_${ver}_${arch}.deb"
|
||||
# we have to cp and not mv because other
|
||||
# distributions might still need this file
|
||||
# we have to cp and not symlink because apt
|
||||
# doesn't recognize symlinks
|
||||
# we cannot do a hardlink because the two
|
||||
# directories might be on different devices
|
||||
cp -a "$mirrordir/$fname" "$aptname"
|
||||
echo "$aptname" >> "$rootdir/oldaptnames"
|
||||
done
|
||||
fi
|
||||
|
||||
pkgs=$(APT_CONFIG="$rootdir/etc/apt/apt.conf" apt-get indextargets \
|
||||
--format '$(FILENAME)' 'Created-By: Packages' "Architecture: $nativearch" \
|
||||
| xargs --delimiter='\n' /usr/lib/apt/apt-helper cat-file \
|
||||
|
@ -77,6 +105,7 @@ END
|
|||
# requires re-creating the heuristic by which the directory is chosen, requires
|
||||
# stripping the epoch from the filename and will break once mirrors change.
|
||||
# This way, it doesn't matter where the mirror ends up storing the package.
|
||||
> "$rootdir/newaptnames"
|
||||
gzip -dc "$mirrordir/dists/$dist/main/binary-$nativearch/Packages.gz" \
|
||||
| grep-dctrl --no-field-names --show-field=Package,Version,Architecture,Filename,MD5sum '' \
|
||||
| paste -sd " \n" \
|
||||
|
@ -92,11 +121,19 @@ END
|
|||
echo "$md5 $aptname" | md5sum --check
|
||||
mkdir -p "$mirrordir/$dir"
|
||||
mv "$aptname" "$mirrordir/$fname"
|
||||
echo "$aptname" >> "$rootdir/newaptnames"
|
||||
fi
|
||||
done
|
||||
|
||||
rm "$rootdir/var/cache/apt/archives/lock"
|
||||
rmdir "$rootdir/var/cache/apt/archives/partial"
|
||||
# remove all packages that were in the old Packages file but not in the
|
||||
# new one anymore
|
||||
sort "$rootdir/oldaptnames" > "$rootdir/tmp"
|
||||
mv "$rootdir/tmp" "$rootdir/oldaptnames"
|
||||
sort "$rootdir/newaptnames" > "$rootdir/tmp"
|
||||
mv "$rootdir/tmp" "$rootdir/newaptnames"
|
||||
comm -23 "$rootdir/oldaptnames" "$rootdir/newaptnames" | xargs --delimiter="\n" --no-run-if-empty rm
|
||||
# now the apt cache should be empty
|
||||
if [ ! -z "$(ls -1qA "$rootdir/var/cache/apt/archives/")" ]; then
|
||||
echo "/var/cache/apt/archives not empty"
|
||||
|
|
Loading…
Reference in a new issue