From ea640cc691d56f7151c5ba654b09c4a987dbef93 Mon Sep 17 00:00:00 2001
From: Thomas Rast <trast@student.ethz.ch>
Date: Mon, 10 Jan 2011 11:37:26 +0100
Subject: [PATCH] submodule: fix relative url parsing for scp-style origin

The function resolve_relative_url was not prepared to deal with an
scp-style origin 'user@host:path' in the case where 'path' is only a
single component.  Fix this by extending the logic that strips one
path component from the $remoteurl.

Also add tests for both styles of URLs.

Noticed-by: Jeffrey Phillips Freeman <jeffrey.freeman@syncleus.com>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 git-submodule.sh           | 16 ++++++++++++++--
 t/t7400-submodule-basic.sh | 38 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 52 insertions(+), 2 deletions(-)

diff --git a/git-submodule.sh b/git-submodule.sh
index d3c583d011..ac371e6253 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -36,12 +36,24 @@ resolve_relative_url ()
 		die "remote ($remote) does not have a url defined in .git/config"
 	url="$1"
 	remoteurl=${remoteurl%/}
+	sep=/
 	while test -n "$url"
 	do
 		case "$url" in
 		../*)
 			url="${url#../}"
-			remoteurl="${remoteurl%/*}"
+			case "$remoteurl" in
+			*/*)
+				remoteurl="${remoteurl%/*}"
+				;;
+			*:*)
+				remoteurl="${remoteurl%:*}"
+				sep=:
+				;;
+			*)
+				die "cannot strip one component off url '$remoteurl'"
+				;;
+			esac
 			;;
 		./*)
 			url="${url#./}"
@@ -50,7 +62,7 @@ resolve_relative_url ()
 			break;;
 		esac
 	done
-	echo "$remoteurl/${url%/}"
+	echo "$remoteurl$sep${url%/}"
 }
 
 #
diff --git a/t/t7400-submodule-basic.sh b/t/t7400-submodule-basic.sh
index 1a4dc5f893..8b004f60d6 100755
--- a/t/t7400-submodule-basic.sh
+++ b/t/t7400-submodule-basic.sh
@@ -331,4 +331,42 @@ test_expect_success 'add submodules without specifying an explicit path' '
 	git config -f .gitmodules submodule.bare.path bare
 '
 
+test_expect_success 'set up for relative path tests' '
+	mkdir reltest &&
+	(
+		cd reltest &&
+		git init &&
+		mkdir sub &&
+		(
+			cd sub &&
+			git init &&
+			test_commit foo
+		) &&
+		git add sub &&
+		git config -f .gitmodules submodule.sub.path sub &&
+		git config -f .gitmodules submodule.sub.url ../subrepo &&
+		cp .git/config pristine-.git-config
+	)
+'
+
+test_expect_success 'relative path works with URL' '
+	(
+		cd reltest &&
+		cp pristine-.git-config .git/config &&
+		git config remote.origin.url ssh://hostname/repo &&
+		git submodule init &&
+		test "$(git config submodule.sub.url)" = ssh://hostname/subrepo
+	)
+'
+
+test_expect_success 'relative path works with user@host:path' '
+	(
+		cd reltest &&
+		cp pristine-.git-config .git/config &&
+		git config remote.origin.url user@host:repo &&
+		git submodule init &&
+		test "$(git config submodule.sub.url)" = user@host:subrepo
+	)
+'
+
 test_done
-- 
2.39.2