X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=topgit.git;a=blobdiff_plain;f=tg-update.sh;h=b256c7c270b41c4e8f5d384a7ece4011d07beb74;hp=f36624fe71b73263471e5df8fbb0014d47ca2ee0;hb=ff59ac7fce3326e0b0163a780ecb49dd3b1de8d1;hpb=d5cc14199b3186453a1819a3ac3a31725cda66f9

diff --git a/tg-update.sh b/tg-update.sh
index f36624f..b256c7c 100644
--- a/tg-update.sh
+++ b/tg-update.sh
@@ -8,13 +8,19 @@ name=
 
 ## Parse options
 
-if [ -n "$1" ]; then
-	echo "Usage: tg [...] update" >&2
-	exit 1
-fi
-
-
-name="$(git symbolic-ref HEAD | sed 's#^refs/\(heads\|top-bases\)/##')"
+while [ -n "$1" ]; do
+	arg="$1"; shift
+	case "$arg" in
+	-*)
+		echo "Usage: tg [...] update [NAME]" >&2
+		exit 1;;
+	*)
+		[ -z "$name" ] || die "name already specified ($name)"
+		name="$arg";;
+	esac
+done
+
+[ -n "$name" ] || name="$(git symbolic-ref HEAD | sed 's#^refs/\(heads\|top-bases\)/##')"
 base_rev="$(git rev-parse --short --verify "refs/top-bases/$name" 2>/dev/null)" ||
 	die "not a TopGit-controlled branch"
 
@@ -59,7 +65,7 @@ if [ -s "$depcheck" ]; then
 					info "You are in a subshell. If you abort the merge,"
 					info "use \`exit 1\` to abort the recursive update altogether."
 					if ! sh -i </dev/tty; then
-						info "Ok, you aborated the merge. Now, you just need to"
+						info "Ok, you aborted the merge. Now, you just need to"
 						info "switch back to some sane branch using \`git checkout\`."
 						exit 3
 					fi
@@ -75,7 +81,7 @@ if [ -s "$depcheck" ]; then
 			info "Updating base with $dep changes..."
 			if ! git merge "$dep"; then
 				if [ -z "$TG_RECURSIVE" ]; then
-					resume="\`$tg update\` again"
+					resume="\`git checkout $name && $tg update\` again"
 				else # subshell
 					resume='exit'
 				fi
@@ -87,14 +93,16 @@ if [ -s "$depcheck" ]; then
 				exit 2
 			fi
 		done
-
-	# Home, sweet home...
-	git checkout -q "$name"
 else
 	info "The base is up-to-date."
 fi
 rm "$depcheck"
 
+# Home, sweet home...
+# (We want to always switch back, in case we were on the base from failed
+# previous merge.)
+git checkout -q "$name"
+
 merge_with="refs/top-bases/$name"
 
 
@@ -140,3 +148,5 @@ if ! git merge "$merge_with"; then
 	fi
 	exit 3
 fi
+
+# vim:noet