abuild: add git/svn snapshot hook

ref #1537

abuild.in

@@ -1651,6 +1651,62 @@ all() {
 	fi
 }
 
+# This abuild hook will checkout an svn or git repository by specifying
+# $svnurl or $giturl in APKBUILD. You can checkout a specific branch in
+# git by adding -b $branch in $giturl. $reporev will select the correct
+# commit, revision or tag for you. If you specify $disturl your distfile
+# will automatically be uploaded with rsync to the url provided.
+# Base version defaults to 0 except if specified by $basever.
+
+snapshot() {
+        # check if we setup vars correctly
+        [ -z "$disturl" ] && warning "Missing disturl in APKBUILD, auto uploading disabled."
+        [ -z "$svnurl" ] && [ -z "$giturl" ] && die "Missding repository url in APKBUILD!"
+        [ -n "$svnurl" ] && [ -n "$giturl" ] && die "You can only use a single repository!"
+        local _date=$(date +%Y%m%d)
+	local _format="tar.gz"
+        # remove any repositories left in srcdir
+        abuild clean
+        mkdir -p "$srcdir" && cd "$srcdir"
+        # clone git repo and archive
+        if [ -n "$giturl" ]; then
+                local _version=${verbase:-0}_git${_date}
+                command -v git >/dev/null || \
+                        die "Missing git! Install git to support git clone."
+                [ -z "$reporev" ] && local _rev="HEAD" && local _depth="--depth=1"
+                msg "Creating git snapshot: $pkgname-$_version"
+                git clone $_depth --bare $giturl $pkgname-$_version || return 1
+                git --git-dir $pkgname-$_version archive \
+			--format=$_format \
+                        -o $pkgname-$_version.$_format \
+                        --prefix=$pkgname-$_version/ $_rev \
+                        || return 1
+        fi
+        # export svn repo and archive
+        if [ -n "$svnurl" ]; then
+                local _version=${verbase:-0}_svn${_date}
+                command -v svn >/dev/null || \
+                        die "Missing svn! Install subverion to support svn export."
+                [ -n "$reporev" ] && local _rev="-r $reporev"
+                msg "Creating svn snapshot: $pkgname-$_version"
+                svn export $_rev $svnurl $pkgname-$_version || return 1
+                tar zcf $pkgname-$_version.$_format $pkgname-$_version || return 1
+        fi
+        # upload to defined distfiles url
+        if [ -n "$disturl" ]; then
+                command -v rsync >/dev/null || \
+                        die "Missing rsync! Install rsync to enable automatic uploads."
+                msg "Uploading to $disturl"
+                rsync --progress -La $pkgname-$_version.$_format \
+                        $disturl || return 1
+                cd "$startdir"
+                # set the pkgver to current date and update checksum
+                sed -i -e "s/^pkgver=.*/pkgver=${_version}/" \
+                        APKBUILD || return 1
+                abuild checksum
+                fi
+}
+
 usage() {
 	echo "$program $abuild_ver"
 	echo "usage: $program [options] [-i PKG] [-P REPODEST] [-p PKGDEST]"
@@ -1692,6 +1748,7 @@ usage() {
 	echo "  up2date     Compare target and sources dates"
 	echo "  installdeps Install packages listed in makedepends and depends"
 	echo "  uninstalldeps Uninstall packages listed in makedepends and depends"
+	echo "  snapshot    Create a \$giturl or \$svnurl snapshot and upload to \$disturl"
 	echo ""
 	exit 0
 }