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Clean up variable usage in create_xdelta() and add a check for the xdelta program.

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Signed-off-by: Andrew Fyfe <andrew@neptune-one.net>
This commit is contained in:
Dale Ogilvie 2007-05-30 11:50:42 +01:00 • committed by Aaron Griffin
parent a8c552d477
commit cad44221c8
1 changed files with 16 additions and 17 deletions
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33
scripts/makepkg.in
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@ -601,43 +601,42 @@ create_package() {
create_xdelta() {
if [ "$(check_buildenv xdelta)" != "y" ]; then
return
elif [ ! "$(type -p xdelta)" ]; then
error "$(gettext "Cannot find the xdelta binary! Is xdelta installed?")"
return
fi
# Check to see if we have any old versions to create deltas with
local pkg_file=$1
local base_file=""
local delta_file=""
local cache_dir="/var/cache/pacman/pkg"
local latest_version=""
local old_versions=( $(ls ${cache_dir}/${pkgname}-*-${CARCH}.${PKGEXT} 2>/dev/null; ls ${PKGDEST}/${pkgname}-*-${CARCH}.${PKGEXT} 2>/dev/null) )
local cache_dir="/var/cache/pacman/pkg" # TODO: autoconf me
local old_versions=( $(ls {"$cache_dir","$PKGDEST"}/${pkgname}-*-${CARCH}.${PKGEXT} 2>/dev/null) )
local old_file dirname filename namend old_version
# Check to see if we have any old versions to create deltas with
local old_file old_version latest_version base_file
for old_file in "${old_versions[@]}"; do
dirname=$(dirname $old_file)
filename=$(basename $old_file)
namend=${filename#"$pkgname-"}
old_version=${namend%-"${CARCH}.${PKGEXT}"}
old_version=$(basename "${old_file%-$CARCH.$PKGEXT}")
old_version=${old_version#$pkgname-}
# old_version may include the target package, only use the old versions
if [ "$old_version" != "$pkgver-$pkgrel" ] && [[ "$old_version" > "$latest_version" ]]; then
latest_version=$old_version
base_file=$old_file
delta_file=$PKGDEST/$pkgname-${old_version}_to_$pkgver-$pkgrel-${CARCH}.delta
fi
done
if [ "$delta_file" != "" ]; then
if [ "$base_file" != "" ]; then
msg "Making delta from version $latest_version"
local delta_file="$PKGDEST/$pkgname-${old_version}_to_$pkgver-$pkgrel-$CARCH.delta"
# xdelta will decompress base_file & pkg_file into TMP_DIR (or /tmp if TMP_DIR is unset)
# then perform the delta on the resulting tars
xdelta delta $base_file $pkg_file $delta_file
xdelta delta "$base_file" "$pkg_file" "$delta_file"
# Generate the final gz using xdelta for compression. xdelta will be our common
# denominator compression utility between the packager and the users
#
# makepkg and pacman must use the same compression algorithm or the delta generated
# package may not match, producing md5 checksum errors.
#
xdelta patch $delta_file $base_file $pkg_file
xdelta patch "$delta_file" "$base_file" "$pkg_file"
else
msg "No previous version found, skipping xdelta"
fi