mirror of
https://github.com/moparisthebest/pacman
synced 2024-12-23 08:18:51 -05:00
48 lines
1.7 KiB
Bash
48 lines
1.7 KiB
Bash
|
#!/bin/bash
|
||
|
|
o=$(basename $1)
|
||
|
|
u=$2
|
||
|
|
CARCH="i686" # Hmmm where to get this from? /etc/makepkg.conf?
|
||
|
|
cached_file=""
|
||
|
|
# Only check for pkg.tar.gz files in the cache, we download db.tar.gz as well
|
||
|
|
if [[ "$o" =~ "pkg.tar.gz" ]] # if $o contains pkg.tar.gz
|
||
|
|
then
|
||
|
|
pkgname=${o%-*-[0-9]-${CARCH}.pkg.tar.gz.part} # Parse out the package name
|
||
|
|
newend=${o##$pkgname-} # Parse out everything following pkgname
|
||
|
|
new_version=${newend%-${CARCH}.pkg.tar.gz.part} # Strip off .pkg.tar.gz.part leaving version
|
||
|
|
url=${u%/*}
|
||
|
|
for cached_file in $(ls -r /var/cache/pacman/pkg/${pkgname}-*-${CARCH}.pkg.tar.gz 2>/dev/null); do
|
||
|
|
# just take the first one, by name. I suppose we could take the latest by date...
|
||
|
|
oldend=${cached_file##*/$pkgname-}
|
||
|
|
old_version=${oldend%-${CARCH}.pkg.tar.gz}
|
||
|
|
if [ "$old_version" = "$new_version" ]; then
|
||
|
|
# We already have the new version in the cache! Just continue the download.
|
||
|
|
cached_file=""
|
||
|
|
fi
|
||
|
|
break
|
||
|
|
done
|
||
|
|
fi
|
||
|
|
if [ "$cached_file" != "" ]; then
|
||
|
|
# Great, we have a cached file, now calculate a patch name from it
|
||
|
|
delta_name=$pkgname-${old_version}_to_${new_version}-${CARCH}.delta
|
||
|
|
# try to download the delta
|
||
|
|
if wget --passive-ftp -c $url/$delta_name; then
|
||
|
|
# Now apply the delta to the cached file to produce the new file
|
||
|
|
echo Applying delta...
|
||
|
|
if xdelta patch $delta_name $cached_file $o; then
|
||
|
|
# Remove the delta now that we are finished with it
|
||
|
|
rm $delta_name
|
||
|
|
else
|
||
|
|
# Hmmm. xdelta failed for some reason
|
||
|
|
rm $delta_name
|
||
|
|
# just download the file
|
||
|
|
wget --passive-ftp -c -O $o $u
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
# just download the file
|
||
|
|
wget --passive-ftp -c -O $o $u
|
||
|
|
fi
|
||
|
|
else
|
||
|
|
# just download the file
|
||
|
|
wget --passive-ftp -c -O $o $u
|
||
|
|
fi
|