pre-receive Hook
----------------
Before any ref is updated, if $GIT_DIR/hooks/pre-receive file exists
-and is executable, it will be invoked once, with three parameters
-per ref to be updated:
+and is executable, it will be invoked once with no parameters. The
+standard input of the hook will be one line per ref to be updated:
- $GIT_DIR/hooks/pre-receive (refname sha1-old sha1-new)+
+ sha1-old SP sha1-new SP refname LF
-The refname parameter is relative to $GIT_DIR; e.g. for the master
-head this is "refs/heads/master". The two sha1 arguments after
+The refname value is relative to $GIT_DIR; e.g. for the master
+head this is "refs/heads/master". The two sha1 values before
each refname are the object names for the refname before and after
-the update. Refs to be created will have sha1-old equal to 0{40},
-while refs to be deleted will have sha1-new equal to 0{40}, otherwise
+the update. Refs to be created will have sha1-old equal to 0\{40},
+while refs to be deleted will have sha1-new equal to 0\{40}, otherwise
sha1-old and sha1-new should be valid objects in the repository.
This hook is called before any refname is updated and before any
head this is "refs/heads/master". The two sha1 arguments are
the object names for the refname before and after the update.
Note that the hook is called before the refname is updated,
-so either sha1-old is 0{40} (meaning there is no such ref yet),
+so either sha1-old is 0\{40} (meaning there is no such ref yet),
or it should match what is recorded in refname.
The hook should exit with non-zero status if it wants to disallow
-----------------
After all refs were updated (or attempted to be updated), if any
ref update was successful, and if $GIT_DIR/hooks/post-receive
-file exists and is executable, it will be invoke once with three
-parameters for each successfully updated ref:
+file exists and is executable, it will be invoke once with no
+parameters. The standard input of the hook will be one line
+for each successfully updated ref:
- $GIT_DIR/hooks/post-receive (refname sha1-old sha1-new)+
+ sha1-old SP sha1-new SP refname LF
-The refname parameter is relative to $GIT_DIR; e.g. for the master
-head this is "refs/heads/master". The two sha1 arguments after
+The refname value is relative to $GIT_DIR; e.g. for the master
+head this is "refs/heads/master". The two sha1 values before
each refname are the object names for the refname before and after
the update. Refs that were created will have sha1-old equal to
-0{40}, while refs that were deleted will have sha1-new equal to
-0{40}, otherwise sha1-old and sha1-new should be valid objects in
+0\{40}, while refs that were deleted will have sha1-new equal to
+0\{40}, otherwise sha1-old and sha1-new should be valid objects in
the repository.
Using this hook, it is easy to generate mails describing the updates
#!/bin/sh
# mail out commit update information.
- while test $# -gt 0
+ while read oval nval ref
do
- if expr "$2" : '0*$' >/dev/null
+ if expr "$oval" : '0*$' >/dev/null
then
echo "Created a new ref, with the following commits:"
- git-rev-list --pretty "$2"
+ git-rev-list --pretty "$nval"
else
echo "New commits:"
- git-rev-list --pretty "$3" "^$2"
+ git-rev-list --pretty "$nval" "^$oval"
fi |
- mail -s "Changes to ref $1" commit-list@mydomain
- shift; shift; shift; # discard this ref's args
+ mail -s "Changes to ref $ref" commit-list@mydomain
done
exit 0