mirror of
https://we.phorge.it/source/phorge.git
synced 2025-02-21 11:09:02 +01:00
02d7bb8604
Summary: Ref T9028. This corrects the reachability of existing commits in a repository. In particular, it can be used to mark deleted commits as unreachable. Test Plan: - Ran it on a bad repository, with bad args, etc. - Ran it on a clean repo, got no changes. - Marked a reachable commit as unreachable, ran script, got it marked reachable. - Started deleting tags and branches from the local working copy while running the script, saw greater parts of the repository get marked unreachable. - Pulled repository again, everything automatically revived. Reviewers: chad Reviewed By: chad Maniphest Tasks: T9028 Differential Revision: https://secure.phabricator.com/D16132
95 lines
2.1 KiB
PHP
95 lines
2.1 KiB
PHP
<?php
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final class PhabricatorGitGraphStream
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extends PhabricatorRepositoryGraphStream {
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private $repository;
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private $iterator;
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private $parents = array();
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private $dates = array();
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public function __construct(
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PhabricatorRepository $repository,
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$start_commit = null) {
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$this->repository = $repository;
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if ($start_commit !== null) {
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$future = $repository->getLocalCommandFuture(
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'log --format=%s %s --',
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'%H%x01%P%x01%ct',
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$start_commit);
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} else {
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$future = $repository->getLocalCommandFuture(
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'log --format=%s --all --',
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'%H%x01%P%x01%ct');
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}
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$this->iterator = new LinesOfALargeExecFuture($future);
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$this->iterator->setDelimiter("\n");
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$this->iterator->rewind();
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}
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public function getParents($commit) {
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if (!isset($this->parents[$commit])) {
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$this->parseUntil($commit);
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}
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$parents = $this->parents[$commit];
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// NOTE: In Git, it is possible for a commit to list the same parent more
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// than once. See T5226. Discard duplicate parents.
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return array_unique($parents);
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}
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public function getCommitDate($commit) {
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if (!isset($this->dates[$commit])) {
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$this->parseUntil($commit);
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}
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return $this->dates[$commit];
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}
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private function parseUntil($commit) {
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if ($this->isParsed($commit)) {
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return;
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}
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$gitlog = $this->iterator;
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while ($gitlog->valid()) {
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$line = $gitlog->current();
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$gitlog->next();
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$line = trim($line);
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if (!strlen($line)) {
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break;
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}
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list($hash, $parents, $epoch) = explode("\1", $line);
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if ($parents) {
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$parents = explode(' ', $parents);
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} else {
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// First commit.
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$parents = array();
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}
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$this->dates[$hash] = $epoch;
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$this->parents[$hash] = $parents;
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if ($this->isParsed($commit)) {
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return;
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}
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}
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throw new Exception(
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pht(
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"No such commit '%s' in repository!",
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$commit));
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}
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private function isParsed($commit) {
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return isset($this->dates[$commit]);
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}
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}
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