X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=topgit.git;a=blobdiff_plain;f=tg-update.sh;h=040800d6fb3805ef92519e436fe9cbb353cdbb77;hp=912c968dbdce2b3ce35f08f2adfcbf82164fbff0;hb=a5dbc6a4a9e01c4e3b21b4c882acfd479c703a40;hpb=8c74e001a0cfdc7d0644c08834ec844a40fc45df

diff --git a/tg-update.sh b/tg-update.sh
index 912c968..040800d 100644
--- a/tg-update.sh
+++ b/tg-update.sh
@@ -9,7 +9,7 @@ name=
 ## Parse options
 
 if [ -n "$1" ]; then
-	echo "Usage: tg update" >&2
+	echo "Usage: tg [...] update" >&2
 	exit 1
 fi
 
@@ -54,7 +54,7 @@ if [ -s "$depcheck" ]; then
 				(
 				export TG_RECURSIVE="[$dep] $TG_RECURSIVE"
 				export PS1="[$dep] $PS1"
-				while ! tg update; do
+				while ! $tg update; do
 					# The merge got stuck! Let the user fix it up.
 					info "You are in a subshell. If you abort the merge,"
 					info "use \`exit 1\` to abort the recursive update altogether."
@@ -75,7 +75,7 @@ if [ -s "$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 && $tg update\` again"
 				else # subshell
 					resume='exit'
 				fi
@@ -87,21 +87,23 @@ if [ -s "$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"
 
 
 ## Second, update our head with the remote branch
 
-rname="refs/remotes/$base_remote/$name"
-if [ -n "$base_remote" ] && ref_exists "$rname"; then
+if has_remote "$name"; then
+	rname="refs/remotes/$base_remote/$name"
 	if branch_contains "$name" "$rname"; then
 		info "The $name head is up-to-date wrt. its remote branch."
 	else
@@ -133,7 +135,7 @@ if ! git merge "$merge_with"; then
 	if [ -z "$TG_RECURSIVE" ]; then
 		info "Please commit merge resolution. No need to do anything else"
 		info "You can abort this operation using \`git reset --hard\` now"
-		info "and retry this merge later using \`tg update\`."
+		info "and retry this merge later using \`$tg update\`."
 	else # subshell
 		info "Please commit merge resolution and call exit."
 		info "You can abort this operation using \`git reset --hard\`."