From: Petr Baudis <pasky@suse.cz>
Date: Wed, 24 Sep 2008 17:03:29 +0000 (+0200)
Subject: tg depend add: Add dependency
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=topgit.git;a=commitdiff_plain;h=d272e32afc116764cf2afc1033320953466f5ed5;ds=sidebyside

tg depend add: Add dependency
---

diff --git a/README b/README
index 5fe7d09..7b117b8 100644
--- a/README
+++ b/README
@@ -253,6 +253,19 @@ tg delete
 
 	TODO: '-a' to delete all empty branches, depfix, revert
 
+tg depend
+~~~~~~~~~
+	Change dependencies of a TopGit-controlled topic branch.
+	This should have several subcommands, but only 'add' is
+	supported right now.
+
+	The 'add' subcommand takes an argument of a topic branch
+	to be added, adds it to '.topdeps', performs a commit and
+	then updates your topic branch accordingly. If you want to
+	do other things related to the dependency addition, like
+	adjusting '.topmsg', prepare them in the index before
+	calling 'tg depend add'.
+
 tg info
 ~~~~~~~
 	Show a summary information about the current or specified
diff --git a/tg-depend.sh b/tg-depend.sh
new file mode 100644
index 0000000..af78808
--- /dev/null
+++ b/tg-depend.sh
@@ -0,0 +1,41 @@
+#!/bin/sh
+# TopGit - A different patch queue manager
+# (c) Petr Baudis <pasky@suse.cz>  2008
+# GPLv2
+
+name=
+
+
+## Parse options
+
+subcmd="$1"; shift
+[ "$subcmd" = "add" ] || die "unknown subcommand ($subcmd)"
+
+while [ -n "$1" ]; do
+	arg="$1"; shift
+	case "$arg" in
+	-*)
+		echo "Usage: tg [...] depend add NAME" >&2
+		exit 1;;
+	*)
+		[ -z "$name" ] || die "name already specified ($name)"
+		name="$arg";;
+	esac
+done
+
+
+## Sanity checks
+
+[ -n "$name" ] || die "no branch name specified"
+branchrev="$(git rev-parse --verify "$name" 2>/dev/null)" ||
+	die "invalid branch name: $name"
+baserev="$(git rev-parse --verify "refs/top-bases/$name" 2>/dev/null)" ||
+	die "not a TopGit topic branch: $name"
+
+
+## Record new dependency
+
+echo "$name" >>.topdeps
+git add .topdeps
+git commit -m"New TopGit dependency: $name"
+$tg update