[pacman-dev] [PATCH 1/4] Add delta information to the repository database.

[Nathan Jones]

Signed-off-by: Nathan Jones <nathanj at insightbb.com>
---
 scripts/repo-add.sh.in |   46 +++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 45 insertions(+), 1 deletions(-)

diff --git a/scripts/repo-add.sh.in b/scripts/repo-add.sh.in
index cb741d7..67fa4f1 100644
--- a/scripts/repo-add.sh.in
+++ b/scripts/repo-add.sh.in
@@ -97,6 +97,34 @@ write_list_entry() {
 	fi
 }
 
+# write a delta entry to the pacman database
+#   arg1 - path to delta
+db_write_delta()
+{
+	# blank out all variables and set deltafile
+	local deltafile=$(readlink -f "$1")
+	local filename=$(basename "$deltafile")
+	local pkgname fromver tover arch csize md5sum
+
+	pkgname="$(echo "$filename" | sed -e 's/\(.*\)-\(.*-.*\)_to_\(.*-.*\)-\(.*\).delta/\1/')"
+	fromver="$(echo "$filename" | sed -e 's/\(.*\)-\(.*-.*\)_to_\(.*-.*\)-\(.*\).delta/\2/')"
+	tover="$(echo "$filename" | sed -e 's/\(.*\)-\(.*-.*\)_to_\(.*-.*\)-\(.*\).delta/\3/')"
+	arch="$(echo "$filename" | sed -e 's/\(.*\)-\(.*-.*\)_to_\(.*-.*\)-\(.*\).delta/\4/')"
+	md5sum="$(md5sum "$deltafile" | cut -d ' ' -f 1)"
+
+	# get size of delta
+	csize=$(du -b -L "$deltafile" | cut -f 1)
+
+	# ensure $pkgname and $pkgver variables were found
+	if [ -z "$pkgname" -o -z "$fromver" ]; then
+		return 1
+	fi
+
+	# add the entry for this delta file
+	echo -e "$fromver $tover $csize $filename $md5sum" >>deltas
+} # end db_write_delta
+
+
 # write an entry to the pacman database
 #   arg1 - path to package
 db_write_entry()
@@ -106,6 +134,7 @@ db_write_entry()
 	local pkgname pkgver pkgdesc url builddate packager csize size \
 		group depend backup license replaces provides conflict \
 		_groups _depends _backups _licenses _replaces _provides _conflicts
+	local startdir
 
 	local OLDIFS="$IFS"
 	# IFS (field seperator) is only the newline character
@@ -133,6 +162,7 @@ db_write_entry()
 	# get compressed size of package
 	csize=$(du -b -L "$pkgfile" | cut -f 1)
 
+	startdir=`pwd`
 	pushd "$gstmpdir" 2>&1 >/dev/null
 
 	# ensure $pkgname and $pkgver variables were found
@@ -183,8 +213,22 @@ db_write_entry()
 	write_list_entry "CONFLICTS" "$_conflicts" "depends"
 	write_list_entry "PROVIDES" "$_provides" "depends"
 
+	# create deltas entry
+	msg2 "$(gettext "Creating 'deltas' db entry...")"
+	echo -e "%DELTAS%" >>deltas
+	for delta in $startdir/$pkgname-*-*_to_*-*-$arch.delta; do
+		if [ -e "$delta" ]; then
+			if db_write_delta "$delta"; then
+				msg2 "$(gettext "Added delta '%s'")" "$(basename "$delta")"
+			else
+				msg2 "$(gettext "Could not add delta '%s'")" "$(basename "$delta")"
+			fi
+		fi
+	done
+	echo -e "" >>deltas
+
 	# preserve the modification time
-	touch -r "$pkgfile" desc depends
+	touch -r "$pkgfile" desc depends deltas
 
 	popd 2>&1 >/dev/null
 } # end db_write_entry
-- 
1.5.3.4