Stephen Morton <stephen.c.mor...@gmail.com> writes:
> The sample pre-push hook provided with git [1] will crash if the local
> repo is not up to date with the remote as $remote_sha is not present
> in the local repo. I'm not sure if this patch is exactly correct, it's
> just provided as an example.
>
> Given that people are likely crafting their own solutions based on the
> examples, it's probably good to get right.
It's probably good to get right, but I do not think use of @{u} is
making it right, unfortunately. You may not necessarily have @{u}
configured, and you may not even pushing to the configured remote
branch.
The spirit of the sample hook, I think, is to validate the new
commits you are publishing, so if you cannot even determine which
ones are new and which ones are not, failing the "push" by exiting
with non-zero status is the right behaviour for this sample.
So perhaps something like this may be more appropriate as an
example.
templates/hooks--pre-push.sample | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/templates/hooks--pre-push.sample b/templates/hooks--pre-push.sample
index 6187dbf..7ef6780 100755
--- a/templates/hooks--pre-push.sample
+++ b/templates/hooks--pre-push.sample
@@ -41,7 +41,12 @@ do
fi
# Check for WIP commit
- commit=`git rev-list -n 1 --grep '^WIP' "$range"`
+ commit=`git rev-list -n 1 --grep '^WIP' "$range"` || {
+ # we do not even know about the range...
+ echo >&2 "Non-ff update to $remote_ref"
+ echo >&2 "fetch from there first"
+ exit 1
+ }
if [ -n "$commit" ]
then
echo >&2 "Found WIP commit in $local_ref, not pushing"
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