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Code Issues Releases Wiki Activity

Improve Arcanist Mercurial compatibility

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Summary:
  - Use "hg parents" to figure out where outgoing changes originate from, not
"~1", since that's a new feature in Mercurial.
  - Add "--style default" all over the place since hg config can override this
(similar to the date config issues we saw in git).
  - Cache working copy status so we don't run full hg diffs like 30 times
(similar to git/svn APIs).
  - Use full "--git" flag instead of rather cryptic "-g".

Test Plan: Ran "arc diff" in my hg working copy, got the diff I expected.

Reviewers: Makinde, aran, jungejason, nh, tuomaspelkonen

Reviewed By: Makinde

CC: aran, Makinde

Differential Revision: 934
This commit is contained in:
epriestley 2011-09-14 18:11:00 -07:00
parent 1c9746a46e
commit 9df1b8a4bd
1 changed files with 66 additions and 44 deletions
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32
src/repository/api/mercurial/ArcanistMercurialAPI.php
View file

@ -69,22 +69,40 @@ class ArcanistMercurialAPI extends ArcanistRepositoryAPI {
public function getRelativeCommit() {
if (empty($this->relativeCommit)) {
list($stdout) = execx(
'(cd %s && hg outgoing --branch `hg branch` --limit 1)',
'(cd %s && hg outgoing --branch `hg branch` --limit 1 --style default)',
$this->getPath());
$logs = $this->parseMercurialLog($stdout);
if (!count($logs)) {
throw new ArcanistUsageException("You have no outgoing changes!");
}
$oldest_log = head($logs);
$oldest_rev = $oldest_log['rev'];
$this->relativeCommit = $oldest_log['rev'].'~1';
// NOTE: The "^" and "~" syntaxes were only added in hg 1.9, which is new
// as of July 2011, so do this in a compatible way. Also, "hg log" and
// "hg outgoing" don't necessarily show parents (even if given an explicit
// template consisting of just the parents token) so we need to separately
// execute "hg parents".
list($stdout) = execx(
'(cd %s && hg parents --style default --rev %s)',
$this->getPath(),
$oldest_rev);
$parents_logs = $this->parseMercurialLog($stdout);
$first_parent = head($parents_logs);
if (!$first_parent) {
throw new ArcanistUsageException(
"Oldest outgoing change has no parent revision!");
}
$this->relativeCommit = $first_parent['rev'];
}
return $this->relativeCommit;
}
public function getLocalCommitInformation() {
list($info) = execx(
'(cd %s && hg log --rev %s..%s --)',
'(cd %s && hg log --style default --rev %s..%s --)',
$this->getPath(),
$this->getRelativeCommit(),
$this->getWorkingCopyRevision());
@ -128,6 +146,7 @@ class ArcanistMercurialAPI extends ArcanistRepositoryAPI {
public function getWorkingCopyStatus() {
if (!isset($this->status)) {
// A reviewable revision spans multiple local commits in Mercurial, but
// there is no way to get file change status across multiple commits, so
// just take the entire diff and parse it to figure out what's changed.
@ -173,12 +192,15 @@ class ArcanistMercurialAPI extends ArcanistRepositoryAPI {
}
}
return $status_map;
$this->status = $status_map;
}
return $this->status;
}
private function getDiffOptions() {
$options = array(
'-g',
'--git',
'-U'.$this->getDiffLinesOfContext(),
);
return implode(' ', $options);