void-packages/common/xbps-src/shutils/purge_distfiles.sh

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# Scan srcpkgs/*/template for hashes and distfiles to determine
# obsolete sources/by_sha256 files and their corresponding
# sources/<pkgname>-<version> files that can be purged
purge_distfiles() {
# Ignore msg_error calls when sourcing templates
msg_error() {
:
}
if [ -z "$XBPS_SRCDISTDIR" ]; then
msg_error "The variable \$XBPS_SRCDISTDIR is not set."
exit 1
fi
#
# Scann all templates for their current distfiles and checksums (hashes)
#
declare -A my_hashes
templates=(srcpkgs/*/template)
max=${#templates[@]}
cur=0
if [ -z "$max" ]; then
msg_error "No srcpkgs/*/template files found. Wrong working directory?"
exit 1
fi
percent=-1
for template in ${templates[@]}; do
pkg="$(echo "$template" | cut -d / -f 2)"
if [ ! -L "srcpkgs/$pkg" ]; then
unset checksum
source $template 2>/dev/null
read -a _my_hashes <<< ${checksum}
i=0
while [ -n "${_my_hashes[$i]}" ]; do
hash="${_my_hashes[$i]}"
[ -z "${my_hashes[$hash]}" ] && my_hashes[$hash]=$template
i=$((i + 1))
done
fi
cur=$((cur + 1))
pnew=$((100 * cur / max))
if [ $pnew -ne $percent ]; then
percent=$pnew
printf "\rScanning templates : %3d%% (%d/%d)" $percent $cur $max
fi
done
echo
echo "Number of hashes : ${#my_hashes[@]}"
#
# Collect inodes of all distfiles in $XBPS_SRCDISTDIR
#
declare -A inodes
distfiles=($XBPS_SRCDISTDIR/*/*)
max=${#distfiles[@]}
cur=0
percent=-1
for distfile in ${distfiles[@]}; do
inode=$(stat "$distfile" --printf "%i")
if [ -z "${inodes[$inode]}" ]; then
inodes[$inode]="$distfile"
else
inodes[$inode]+="|$distfile"
fi
cur=$((cur + 1))
pnew=$((100 * cur / max))
if [ $pnew -ne $percent ]; then
percent=$pnew
printf "\rCollecting inodes : %3d%% (%d/%d)" $percent $cur $max
fi
done
echo
hashes=($XBPS_SRCDISTDIR/by_sha256/*)
readonly HASHLEN=64
for file in ${hashes[@]}; do
hash_distfile=$(basename "$file")
hash=${hash_distfile:0:$HASHLEN}
[ -n "${my_hashes[$hash]}" ] && continue
inode=$(stat "$file" --printf "%i")
echo "Obsolete $hash (inode: $inode)"
( IFS="|"; for f in ${inodes[$inode]}; do rm -v "$f"; done )
done
echo "Done."
}