Since 69c305178 (submodules: refactor computation of relative gitdir path)
cloning a submodule recursively fails for recursive submodules when a
symbolic link is part of the path to the work tree of the superproject.
This happens when module_clone() tries to find the relative paths between
work tree and git dir. When a symbolic link in current $PWD points to a
directory in a different level determining the number of "../" needed to
traverse to the superprojects work tree leads to a wrong result.
As there is no portable way to say "pwd -P" use cd_to_toplevel to remove
the link from the pwd, which fixes this problem.
A test for this problem has been added to t7406.
Reported-by: Bob Halley <halley@xxxxxxxxxxxx>
Signed-off-by: Jens Lehmann <Jens.Lehmann@xxxxxx>
---
Thanks to Bob for providing a very detailed bug report and test case!
git-submodule.sh | 4 ++--
t/t7406-submodule-update.sh | 13 +++++++++++++
2 files changed, 15 insertions(+), 2 deletions(-)
diff --git a/git-submodule.sh b/git-submodule.sh
index 5629d87..f73e32e 100755
--- a/git-submodule.sh
+++ b/git-submodule.sh
@@ -186,8 +186,8 @@ module_clone()
die "$(eval_gettext "Clone of '\$url' into submodule path '\$sm_path' failed")"
fi
- a=$(cd "$gitdir" && pwd)/
- b=$(cd "$sm_path" && pwd)/
+ a=$(cd_to_toplevel && cd "$gitdir" && pwd)/
+ b=$(cd_to_toplevel && cd "$sm_path" && pwd)/
# normalize Windows-style absolute paths to POSIX-style absolute paths
case $a in [a-zA-Z]:/*) a=/${a%%:*}${a#*:} ;; esac
case $b in [a-zA-Z]:/*) b=/${b%%:*}${b#*:} ;; esac
diff --git a/t/t7406-submodule-update.sh b/t/t7406-submodule-update.sh
index dcb195b..05521de 100755
--- a/t/t7406-submodule-update.sh
+++ b/t/t7406-submodule-update.sh
@@ -636,4 +636,17 @@ test_expect_success 'submodule update properly revives a moved submodule' '
)
'
+test_expect_success 'submodule update can handle symbolic links in pwd' '
+ mkdir -p linked/dir &&
+ ln -s linked/dir linkto &&
+ (
+ cd linkto &&
+ git clone "$TRASH_DIRECTORY"/super_update_r2 super &&
+ (
+ cd super &&
+ git submodule update --init --recursive
+ )
+ )
+'
+
test_done
--
1.7.11.1.166.gb8ff004
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