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+#!/bin/sh
+
+test_description='pulling from symlinked subdir'
+
+. ./test-lib.sh
+
+# 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 SYMLINKS setup '
+ mkdir subdir &&
+ echo file >subdir/file &&
+ git add subdir/file &&
+ git commit -q -m file &&
+ git clone -q . clone-repo &&
+ ln -s clone-repo/subdir/ subdir-link &&
+ (
+ cd clone-repo &&
+ git config receive.denyCurrentBranch warn
+ ) &&
+ git config receive.denyCurrentBranch warn
+'
+
+# Demonstrate that things work if we just avoid the symlink
+#
+test_expect_success SYMLINKS 'pulling from real subdir' '
+ (
+ echo real >subdir/file &&
+ git commit -m real subdir/file &&
+ cd clone-repo/subdir/ &&
+ git pull &&
+ test real = $(cat file)
+ )
+'
+
+# 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. A POSIX shell's "cd" works a little differently
+# than chdir() in C; "cd -P" is much closer to chdir().
+#
+test_expect_success SYMLINKS 'pulling from symlinked subdir' '
+ (
+ echo link >subdir/file &&
+ git commit -m link subdir/file &&
+ cd subdir-link/ &&
+ git pull &&
+ test link = $(cat file)
+ )
+'
+
+# Prove that the remote end really is a repo, and other commands
+# work fine in this context. It's just that "git pull" breaks.
+#
+test_expect_success SYMLINKS 'pushing from symlinked subdir' '
+ (
+ cd subdir-link/ &&
+ echo push >file &&
+ git commit -m push ./file &&
+ git push
+ ) &&
+ test push = $(git show HEAD:subdir/file)
+'
+
+test_done