Do the heavy lifting for git commit hooks
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Authored by epriestley on Dec 3 2013, 3:35 AM.

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btrahan

Maniphest Tasks

T4189: Install commit hooks in hosted repositories

Commits

Restricted Diffusion Commit
rP632e1ceda61b: Do the heavy lifting for git commit hooks

Summary

Ref T4189. This doesn't add any rules yet, but does all the heavy lifting to figure out what's changed and put it in a consuamble (if somewhat ad-hoc) datastructure, which lists all the ref and tag modifications and all the new commits in a consistent way.

From here, it should be fairly straightforward to add top-level rules (e.g., ff pushes only).

Test Plan

Output is huge, see comments.

Diff Detail

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Unit

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Event Timeline

Pushing some branches, with var_dump():

>>> orbital ~/repos/POEMS $ git push --all
Counting objects: 19, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (17/17), done.
Writing objects: 100% (17/17), 1.26 KiB, done.
Total 17 (delta 15), reused 0 (delta 0)
remote: array(3) {
remote:   [0] =>
remote:   array(9) {
remote:     'old' =>
remote:     string(40) "b327b20eac181b91f9739802111191709be98d66"
remote:     'old.short' =>
remote:     string(8) "b327b20e"
remote:     'new' =>
remote:     string(40) "683d658264a5f10466671c2eeda16edb652e36a7"
remote:     'new.short' =>
remote:     string(8) "683d6582"
remote:     'ref' =>
remote:     string(17) "refs/heads/master"
remote:     'type' =>
remote:     string(6) "branch"
remote:     'operation' =>
remote:     string(6) "update"
remote:     'merge-base' =>
remote:     string(40) "b327b20eac181b91f9739802111191709be98d66"
remote:     'commits' =>
remote:     array(1) {
remote:       [0] =>
remote:       string(40) "683d658264a5f10466671c2eeda16edb652e36a7"
remote:     }
remote:   }
remote:   [1] =>
remote:   array(8) {
remote:     'old' =>
remote:     string(40) "0000000000000000000000000000000000000000"
remote:     'old.short' =>
remote:     string(8) "00000000"
remote:     'new' =>
remote:     string(40) "683d658264a5f10466671c2eeda16edb652e36a7"
remote:     'new.short' =>
remote:     string(8) "683d6582"
remote:     'ref' =>
remote:     string(16) "refs/heads/blarp"
remote:     'type' =>
remote:     string(6) "branch"
remote:     'operation' =>
remote:     string(6) "create"
remote:     'commits' =>
remote:     array(1) {
remote:       [0] =>
remote:       string(40) "683d658264a5f10466671c2eeda16edb652e36a7"
remote:     }
remote:   }
remote:   [2] =>
remote:   array(8) {
remote:     'old' =>
remote:     string(40) "0000000000000000000000000000000000000000"
remote:     'old.short' =>
remote:     string(8) "00000000"
remote:     'new' =>
remote:     string(40) "9ff282eed63779f5d5f7934db70d941f991e0e94"
remote:     'new.short' =>
remote:     string(8) "9ff282ee"
remote:     'ref' =>
remote:     string(15) "refs/heads/herp"
remote:     'type' =>
remote:     string(6) "branch"
remote:     'operation' =>
remote:     string(6) "create"
remote:     'commits' =>
remote:     array(15) {
remote:       [0] =>
remote:       string(40) "9ff282eed63779f5d5f7934db70d941f991e0e94"
remote:       [1] =>
remote:       string(40) "82f7ca080e78abe97907b64261c230c3fc573341"
remote:       [2] =>
remote:       string(40) "d74257ab594d569f88ba9c5269f766d0ff68d4a3"
remote:       [3] =>
remote:       string(40) "0486d07aa3ff58e3693904412bc8978c0fc5143b"
remote:       [4] =>
remote:       string(40) "2dbbf9902fed83fd4fa8bff9be18b1ab63586352"
remote:       [5] =>
remote:       string(40) "8d05fa478547f426851ff192746d0a1e32028d1f"
remote:       [6] =>
remote:       string(40) "7cfde00c1d6c880baf9e40200244fe9fbd3f7cf9"
remote:       [7] =>
remote:       string(40) "29f887c17d4231a052ebc7f1cf5d35e520ba9168"
remote:       [8] =>
remote:       string(40) "7cc1f0b2e8a2a7603ce31083b982486cfecd9932"
remote:       [9] =>
remote:       string(40) "0e73ed469cbec677ef90193c4b6144a9265bc665"
remote:       [10] =>
remote:       string(40) "8f8de23cd8169f849f2218d1d19bef896901d783"
remote:       [11] =>
remote:       string(40) "7b729f7ba8f95f60c2b9a1cfcf9be2bd32b79d35"
remote:       [12] =>
remote:       string(40) "1a283f5d8e62c9b30c82cbea8f69b1a037088a46"
remote:       [13] =>
remote:       string(40) "c98b9ab652de1110e7ad11e4749fae4db25adf79"
remote:       [14] =>
remote:       string(40) "683d658264a5f10466671c2eeda16edb652e36a7"
remote:     }
remote:   }
remote: }
To ssh://dweller@localhost/diffusion/POEMS/
 ! [remote rejected] master -> master (pre-receive hook declined)
 ! [remote rejected] blarp -> blarp (pre-receive hook declined)
 ! [remote rejected] herp -> herp (pre-receive hook declined)
error: failed to push some refs to 'ssh://dweller@localhost/diffusion/POEMS/'

Pushing some tags, with var_dump():

>>> orbital ~/repos/POEMS $ git push --tags
Counting objects: 6, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (4/4), done.
Writing objects: 100% (4/4), 446 bytes, done.
Total 4 (delta 1), reused 0 (delta 0)
remote: array(2) {
remote:   [0] =>
remote:   array(8) {
remote:     'old' =>
remote:     string(40) "0000000000000000000000000000000000000000"
remote:     'old.short' =>
remote:     string(8) "00000000"
remote:     'new' =>
remote:     string(40) "683d658264a5f10466671c2eeda16edb652e36a7"
remote:     'new.short' =>
remote:     string(8) "683d6582"
remote:     'ref' =>
remote:     string(14) "refs/tags/asdf"
remote:     'type' =>
remote:     string(3) "tag"
remote:     'operation' =>
remote:     string(6) "create"
remote:     'commits' =>
remote:     array(1) {
remote:       [0] =>
remote:       string(40) "683d658264a5f10466671c2eeda16edb652e36a7"
remote:     }
remote:   }
remote:   [1] =>
remote:   array(8) {
remote:     'old' =>
remote:     string(40) "0000000000000000000000000000000000000000"
remote:     'old.short' =>
remote:     string(8) "00000000"
remote:     'new' =>
remote:     string(40) "7733af8359f33fe23fc67f9a8d9c0fb4b8b8019b"
remote:     'new.short' =>
remote:     string(8) "7733af83"
remote:     'ref' =>
remote:     string(14) "refs/tags/qwer"
remote:     'type' =>
remote:     string(3) "tag"
remote:     'operation' =>
remote:     string(6) "create"
remote:     'commits' =>
remote:     array(1) {
remote:       [0] =>
remote:       string(40) "683d658264a5f10466671c2eeda16edb652e36a7"
remote:     }
remote:   }
remote: }
To ssh://dweller@localhost/diffusion/POEMS/
 ! [remote rejected] asdf -> asdf (pre-receive hook declined)
 ! [remote rejected] qwer -> qwer (pre-receive hook declined)
error: failed to push some refs to 'ssh://dweller@localhost/diffusion/POEMS/'

btrahan accepted this revision.Dec 3 2013, 6:17 PM

btrahan added inline comments.

src/applications/diffusion/engine/DiffusionCommitHookEngine.php
151	any special reasoning on 8 here and below?

epriestley added inline comments.Dec 3 2013, 6:21 PM

src/applications/diffusion/engine/DiffusionCommitHookEngine.php
151	Some discussion in D7606. Long ago, we had: ->limitPerCore(1) ...which meant: ->limit(1 * number_of_cpu_cores_on_this_machine) I think we should restore this at some point. It didn't make it out of Facebook because it's super messy to figure out how many CPU cores a machine has in a cross-platform way and it was an easy thing to cut at the time, but it would be much more correct than hard-coding 8. The 8 number is just "about the most cores machines probably have, usually".

Closed by commit rP632e1ceda61b (authored by @epriestley).

Revision Contents
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src/

applications/

diffusion/

engine/

DiffusionCommitHookEngine.php

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src/applications/diffusion/engine/DiffusionCommitHookEngine.php

Do the heavy lifting for git commit hooksClosedPublicActions