remote-hg is using a mercurial shared clone to store all remotes objects
in one place. Unfortunately, the sharedpath is stored as an absolute
path by mercurial, creating a dependency on the location of the git
repository. Whenever the git repository is moved, the sharedpath must
be updated to reflect the new absolute path.

Check mercurial sharedpath file when getting the local hg repository,
and update it manually with the new path if necessary.

Signed-off-by: Antoine Pelisse <apeli...@gmail.com>
---
 contrib/remote-helpers/git-remote-hg |  4 ++++
 contrib/remote-helpers/test-hg.sh    | 11 +++++++++++
 2 files changed, 15 insertions(+)

diff --git a/contrib/remote-helpers/git-remote-hg 
b/contrib/remote-helpers/git-remote-hg
index c6026b9..576f094 100755
--- a/contrib/remote-helpers/git-remote-hg
+++ b/contrib/remote-helpers/git-remote-hg
@@ -416,6 +416,10 @@ def get_repo(url, alias):
         local_path = os.path.join(dirname, 'clone')
         if not os.path.exists(local_path):
             hg.share(myui, shared_path, local_path, update=False)
+        else:
+            sharedpath_file = os.path.join(local_path, '.hg', 'sharedpath')
+            if hg_path != open(sharedpath_file, 'r').read():
+                open(sharedpath_file, 'w').write(hg_path)
 
         repo = hg.repository(myui, local_path)
         try:
diff --git a/contrib/remote-helpers/test-hg.sh 
b/contrib/remote-helpers/test-hg.sh
index 72f745d..2477540 100755
--- a/contrib/remote-helpers/test-hg.sh
+++ b/contrib/remote-helpers/test-hg.sh
@@ -335,6 +335,17 @@ test_expect_success 'remote cloning' '
        check gitrepo HEAD zero
 '
 
+test_expect_success 'moving remote clone' '
+       test_when_finished "rm -rf gitrepo*" &&
+
+       (
+       git clone "hg::hgrepo" gitrepo &&
+       mv gitrepo gitrepo2 &&
+       cd gitrepo2 &&
+       git fetch
+       )
+'
+
 test_expect_success 'remote update bookmark' '
        test_when_finished "rm -rf gitrepo*" &&
 
-- 
1.8.5.rc1.30.g02973b8.dirty

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