* When interpretting a relative upward (../) path in cd_to_toplevel,
prepend the cwd without symlinks, given by /bin/pwd
* Add tests for cd_to_toplevel and "git pull" in a symlinked
directory that failed before this fix, plus constrasting
scenarios that already worked
Signed-off-by: Marcel M. Cary <marcel@xxxxxxxxxxxxxxxx>
---
Now /bin/pwd is only used when $cdup both is relative
and contains a ".." component, which I think is most of
the time that git didn't start out in the top-level
directory.
I can't seem to exercise the case that show-cdup prints
something other than "../" or "", even when setting
GIT_WORK_TREE in or out of the work tree. Is it premature
to anticipate that show-cdup might print an arbitrary path
sometime in the future, given the
"if (!is_inside_work_tree())" branch of show-cdup? Or maybe
it does now and I just don't see the use case.
Also, the additional invocation of "cd" is now removed.
git-sh-setup.sh | 23 ++++++++++++++-
t/t2300-cd-to-toplevel.sh | 37 +++++++++++++++++++++++++
t/t5521-pull-symlink.sh | 67 +++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 125 insertions(+), 2 deletions(-)
create mode 100755 t/t2300-cd-to-toplevel.sh
create mode 100755 t/t5521-pull-symlink.sh
diff --git a/git-sh-setup.sh b/git-sh-setup.sh
index dbdf209..f07d96b 100755
--- a/git-sh-setup.sh
+++ b/git-sh-setup.sh
@@ -85,8 +85,27 @@ cd_to_toplevel () {
cdup=$(git rev-parse --show-cdup)
if test ! -z "$cdup"
then
- cd "$cdup" || {
- echo >&2 "Cannot chdir to $cdup, the toplevel of the working tree"
+ case "$cdup" in
+ /*)
+ # Not quite the same as if we did "cd -P '$cdup'" when
+ # $cdup contains ".." after symlink path components.
+ # Don't fix that case at least until Git switches to
+ # "cd -P" across the board.
+ phys="$cdup"
+ ;;
+ ..|../*|*/..|*/../*)
+ # Interpret $cdup relative to the physical, not logical, cwd.
+ # Probably /bin/pwd is more portable than passing -P to cd or pwd.
+ phys="$(/bin/pwd)/$cdup"
+ ;;
+ *)
+ # There's no "..", so no need to make things absolute.
+ phys="$cdup"
+ ;;
+ esac
+
+ cd "$phys" || {
+ echo >&2 "Cannot chdir to $phys, the toplevel of the working tree"
exit 1
}
fi
diff --git a/t/t2300-cd-to-toplevel.sh b/t/t2300-cd-to-toplevel.sh
new file mode 100755
index 0000000..293dc35
--- /dev/null
+++ b/t/t2300-cd-to-toplevel.sh
@@ -0,0 +1,37 @@
+#!/bin/sh
+
+test_description='cd_to_toplevel'
+
+. ./test-lib.sh
+
+test_cd_to_toplevel () {
+ test_expect_success "$2" '
+ (
+ cd '"'$1'"' &&
+ . git-sh-setup &&
+ cd_to_toplevel &&
+ [ "$(pwd -P)" = "$TOPLEVEL" ]
+ )
+ '
+}
+
+TOPLEVEL="$(pwd -P)/repo"
+mkdir -p repo/sub/dir
+mv .git repo/
+SUBDIRECTORY_OK=1
+
+test_cd_to_toplevel repo 'at physical root'
+
+test_cd_to_toplevel repo/sub/dir 'at physical subdir'
+
+ln -s repo symrepo
+test_cd_to_toplevel symrepo 'at symbolic root'
+
+ln -s repo/sub/dir subdir-link
+test_cd_to_toplevel subdir-link 'at symbolic subdir'
+
+cd repo
+ln -s sub/dir internal-link
+test_cd_to_toplevel internal-link 'at internal symbolic subdir'
+
+test_done
diff --git a/t/t5521-pull-symlink.sh b/t/t5521-pull-symlink.sh
new file mode 100755
index 0000000..f18fec7
--- /dev/null
+++ b/t/t5521-pull-symlink.sh
@@ -0,0 +1,67 @@
+#!/bin/sh
+
+test_description='pulling from symlinked subdir'
+
+. ./test-lib.sh
+
+D=`pwd`
+
+# The scenario we are building:
+#
+# trash\ directory/
+# clone-repo/
+# subdir/
+# bar
+# subdir-link -> clone-repo/subdir/
+#
+# The working directory is subdir-link.
+#
+test_expect_success setup '
+
+ mkdir subdir &&
+ touch subdir/bar &&
+ git add subdir/bar &&
+ git commit -m empty &&
+ git clone . clone-repo &&
+ # demonstrate that things work without the symlink
+ test_debug "cd clone-repo/subdir/ && git pull; cd ../.." &&
+ ln -s clone-repo/subdir/ subdir-link &&
+ cd subdir-link/ &&
+ test_debug "set +x"
+'
+
+# From subdir-link, pulling should work as it does from
+# clone-repo/subdir/.
+#
+# Instead, the error pull gave was:
+#
+# fatal: 'origin': unable to chdir or not a git archive
+# fatal: The remote end hung up unexpectedly
+#
+# because git would find the .git/config for the "trash directory"
+# repo, not for the clone-repo repo. The "trash directory" repo
+# had no entry for origin. Git found the wrong .git because
+# git rev-parse --show-cdup printed a path relative to
+# clone-repo/subdir/, not subdir-link/. Git rev-parse --show-cdup
+# used the correct .git, but when the git pull shell script did
+# "cd `git rev-parse --show-cdup`", it ended up in the wrong
+# directory. Shell "cd" works a little different from chdir() in C.
+# Bash's "cd -P" works like chdir() in C.
+#
+test_expect_success 'pulling from symlinked subdir' '
+
+ git pull
+'
+
+# Prove that the remote end really is a repo, and other commands
+# work fine in this context.
+#
+test_debug "
+ test_expect_success 'pushing from symlinked subdir' '
+
+ git push
+ '
+"
+cd "$D"
+
+test_done
--
1.6.0.3
--
To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
