From: Jiang Xin <zhiyou.jx@xxxxxxxxxxxxxxx> "git receive-pack" that accepts requests by "git push" learned to outsource some of the ref updates to the new "proc-receive" hook. Signed-off-by: Jiang Xin <zhiyou.jx@xxxxxxxxxxxxxxx> --- Documentation/githooks.txt | 62 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) diff --git a/Documentation/githooks.txt b/Documentation/githooks.txt index 31b601e4bc..2899e80445 100644 --- a/Documentation/githooks.txt +++ b/Documentation/githooks.txt @@ -333,6 +333,68 @@ The default 'update' hook, when enabled--and with `hooks.allowunannotated` config option unset or set to false--prevents unannotated tags to be pushed. +[[proc-receive]] +proc-receive +~~~~~~~~~~~~ + +This hook is invoked by linkgit:git-receive-pack[1]. If the server has +set the multi-valued config variable `receive.procReceiveRefs`, and the +commands sent to 'receive-pack' have matching reference names, these +commands will be executed by this hook, instead of by the internal +`execute_commands()` function. This hook is responsible for updating +the relevant references and reporting the results back to 'receive-pack'. + +This hook executes once for the receive operation. It takes no +arguments, but uses a pkt-line format protocol to communicate with +'receive-pack' to read commands, push-options and send results. In the +following example for the protocol, the letter 'S' stands for +'receive-pack' and the letter 'H' stands for this hook. + + # Version and features negotiation. + S: PKT-LINE(version=1\0push-options atomic...) + S: flush-pkt + H: PKT-LINE(version=1\0push-options...) + H: flush-pkt + + # Send commands from server to the hook. + S: PKT-LINE(<old-oid> <new-oid> <ref>) + S: ... ... + S: flush-pkt + # Send push-options only if the 'push-options' feature is enabled. + S: PKT-LINE(push-option) + S: ... ... + S: flush-pkt + + # Receive result from the hook. + # OK, run this command successfully. + H: PKT-LINE(ok <ref>) + # NO, I reject it. + H: PKT-LINE(ng <ref> <reason>) + # Fall through, let 'receive-pack' to execute it. + H: PKT-LINE(ok <ref>) + H: PKT-LINE(option fall-through) + # OK, but has an alternate reference. The alternate reference name + # and other status can be given in option directives. + H: PKT-LINE(ok <ref>) + H: PKT-LINE(option refname <refname>) + H: PKT-LINE(option old-oid <old-oid>) + H: PKT-LINE(option new-oid <new-oid>) + H: PKT-LINE(option forced-update) + H: ... ... + H: flush-pkt + +Each command for the 'proc-receive' hook may point to a pseudo-reference +and always has a zero-old as its old-oid, while the 'proc-receive' hook +may update an alternate reference and the alternate reference may exist +already with a non-zero old-oid. For this case, this hook will use +"option" directives to report extended attributes for the reference given +by the leading "ok" directive. + +The report of the commands of this hook should have the same order as +the input. The exit status of the 'proc-receive' hook only determines +the success or failure of the group of commands sent to it, unless +atomic push is in use. + [[post-receive]] post-receive ~~~~~~~~~~~~ -- 2.26.2.543.g44b58e439b
