[PATCH 1/4] submodule: fix recursive path printing from non root directory

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Recursing into submodules currently works by just calling
(cd $submodule && eval <command>) for update, sync and status
command.

Say you have the following setup

repo/ # a superproject repository
repo/untracked/ # an untracked dir in repo/
repo/sub/ # a submodule
repo/sub/subsub # a submodule of a submodule

When being in repo/untracked/ and invoking "git submodule status"
you would expect output like:

    repo/untracked/$ git submodule status --recursive
     <sha1> ../sub (version)
     <sha1> ../sub/subsub (<version>)

We need to take into account that we are in the untracked/ dir,
so we need to prepend ../ to the paths. By using relative_path
to compute the prefix, we'll have that output.

Signed-off-by: Stefan Beller <sbeller@xxxxxxxxxx>
---
 git-submodule.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/git-submodule.sh b/git-submodule.sh
index 43c68de..536ba68 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -825,7 +825,7 @@ Maybe you want to use 'update --init'?")"
 		if test -n "$recursive"
 		then
 			(
-				prefix="$prefix$sm_path/"
+				prefix="$(relative_path $prefix$sm_path)/"
 				clear_local_git_env
 				cd "$sm_path" &&
 				eval cmd_update
@@ -1233,13 +1233,13 @@ cmd_sync()
 			then
 			(
 				clear_local_git_env
+				prefix=$(relative_path "$prefix$sm_path/")
 				cd "$sm_path"
 				remote=$(get_default_remote)
 				git config remote."$remote".url "$sub_origin_url"
 
 				if test -n "$recursive"
 				then
-					prefix="$prefix$sm_path/"
 					eval cmd_sync
 				fi
 			)
-- 
2.8.0.rc4.10.g52f3f33

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