buildrepo: copy files from aports if already built.

and dont build index if its not needed

buildrepo

@@ -40,18 +40,48 @@ purge() {
 }
 
 build() {
-	local repo="$1" i
+	local repo="$1" i indexupdate needbuild
 
 	cd "$aportsdir/$repo" || return 1
 	mkdir -p "$repodir/$repo"
 
+	# first we try copy everything possible and find out which we need
+	# to rebuild. By doing this we might save us for rebuilding 
+	# needed when running 'abuild -R'
 	for i in */APKBUILD; do
-		( cd ${i%/*} || return 1
-		  REPODEST="$repodir" abuild -k -r || return 1
-		) || return 1
+		export REPODEST="$repodir"
+		cd "$aportsdir/$repo"/${i%/*} || return 1
+		if abuild -k -q up2date 2>/dev/null; then
+			continue
+		fi
+
+		# try link or copy the files if they are in the ports dir
+		pkgs=$(abuild listpkg)
+		if cp -p -l $pkgs "$repodir/$repo"/ 2>/dev/null \
+			|| cp -p $pkgs "$repodir/$repo"/ 2>/dev/null; then
+			echo ">>> Copying " $pkgs
+		else
+			needbuild="$needbuild $i"
+		fi
+		indexupdate="$indexupdate $i"
 	done
+
+	if [ -z "$indexupdate" ] && [ -z "$needbuild" ]; then
+		echo ">>> Repository $repo is up-to-date."
+		return 0
+	fi
+
+	# build the postponed packages if any
+	if [ -n "$needbuild" ]; then
+		for i in $needbuild; do
+			cd "$aportsdir/$repo"/${i%/*} || return 1
+			abuild -k -R || return 1
+		done
+	fi
+
+	# generate the repository index
 	cd "$repodir/$repo"
-	echo ">>> Generating Index..."
+	echo ">>> Generating Index for $repo..."
 	md5sum *.apk | gzip -9 > INDEX.md5.gz
 	if which apk >/dev/null; then
 		local deps
@@ -60,6 +90,8 @@ build() {
 		done
 		apk $deps index *.apk | gzip -9 > APK_INDEX.gz
 	fi
+
+	# kill old packages in repo
 	purge "$repo"
 }
 
@@ -83,6 +115,7 @@ while [ $# -gt 0 ]; do
 	else
 		build $1 || exit 1
 	fi
+	deprepo="$deprepo $1"
 	shift
 done