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authorMike Hommey <>2015-01-19 01:35:07 (GMT)
committerJunio C Hamano <>2015-01-22 06:46:59 (GMT)
commit33cae5428ab504e318cfac880d59e0bda58590d7 (patch)
tree5cfe024a40a57248141c4524c47bea043ae885d8 /
parent627736ca799edacf13881da7e671964a0afb94b8 (diff)
transport-helper: do not request symbolic refs to remote helpers
A typical remote helper will return a `list` of refs containing a symbolic ref HEAD, pointing to, e.g. refs/heads/master. In the case of a clone, all the refs are being requested through `fetch` or `import`, including the symbolic ref. While this works properly, in some cases of a fetch, like `git fetch url` or `git fetch origin HEAD`, or any fetch command involving a symbolic ref without also fetching the corresponding ref it points to, the fetch command fails with: fatal: bad object 0000000000000000000000000000000000000000 error: <remote> did not send all necessary objects (in the case the remote helper returned '?' values to the `list` command). This is because there is only one ref given to fetch(), and it's not further resolved to something at the end of fetch_with_import(). While this can be somehow handled in the remote helper itself, by adding a refspec for the symbolic ref, and storing an explicit ref in a private namespace, and then handling the `import` for that symbolic ref specifically, very few existing remote helpers are actually doing that. So, instead of requesting the exact list of wanted refs to remote helpers, treat symbolic refs differently and request the ref they point to instead. Then, resolve the symbolic refs values based on the pointed ref. This assumes there is no more than one level of indirection (a symbolic ref doesn't point to another symbolic ref). Signed-off-by: Mike Hommey <> Signed-off-by: Junio C Hamano <>
Diffstat (limited to '')
1 files changed, 7 insertions, 1 deletions
diff --git a/ b/
index a9c75a2..752c763 100755
--- a/
+++ b/
@@ -1,7 +1,13 @@
# Copyright (c) 2012 Felipe Contreras
+# The first argument can be a url when the fetch/push command was a url
+# instead of a configured remote. In this case, use a generic alias.
+if test "$1" = "testgit::$2"; then
+ alias=_
+ alias=$1