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Code Issues Releases Wiki Activity

Improve arc land recovery from issues with the remote.

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Summary:
Fixes T2138.

  - When a pull fails, restore the original branch.
  - When a push fails, complain about it really loudly.

NOTE: No test plan for push yet since I'm not sure this is the right remedy, see T2138 for discsusion.

Test Plan:
  - Tested pull by changing "git pull" to "git xxpull" and running "arc land". Saw the pull fail and my original branch restored.

Reviewers: vrana, aran

Reviewed By: vrana

Maniphest Tasks: T2138

Differential Revision: https://secure.phabricator.com/D4265
This commit is contained in:
epriestley 2012-12-21 14:18:07 -08:00
parent f830b3bf3f
commit cffe1942ec
1 changed files with 35 additions and 18 deletions
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53
src/workflow/ArcanistLandWorkflow.php
View file

@ -135,7 +135,13 @@ EOTEXT
public function run() {
$this->readArguments();
$this->validate();
$this->pullFromRemote();
try {
$this->pullFromRemote();
} catch (Exception $ex) {
$this->restoreBranch();
throw $ex;
}
$this->checkoutBranch();
$this->findRevision();
@ -148,6 +154,7 @@ EOTEXT
}
$this->push();
if (!$this->keepBranch) {
$this->cleanupBranch();
}
@ -155,13 +162,7 @@ EOTEXT
// If we were on some branch A and the user ran "arc land B",
// switch back to A.
if ($this->oldBranch != $this->branch && $this->oldBranch != $this->onto) {
$repository_api = $this->getRepositoryAPI();
$repository_api->execxLocal(
'checkout %s',
$this->oldBranch);
echo phutil_console_format(
"Switched back to branch **%s**.\n",
$this->oldBranch);
$this->restoreBranch();
}
echo "Done.\n";
@ -698,8 +699,7 @@ EOTEXT
$repository_api->execxLocal(
'commit -F %s',
$this->messageFile);
}
else if ($this->isHg) {
} else if ($this->isHg) {
// hg rebase produces a commit earlier as part of rebase
if (!$this->useSquash) {
$repository_api->execxLocal(
@ -719,22 +719,25 @@ EOTEXT
if ($this->isGitSvn) {
$err = phutil_passthru('git svn dcommit');
$cmd = "git svn dcommit";
} else if ($this->isGit) {
$err = phutil_passthru(
'git push %s %s',
$this->remote,
$this->onto);
}
else if ($this->isHg) {
$cmd = "git push";
} else if ($this->isHg) {
$err = $repository_api->execPassthru(
'push --new-branch -r %s %s',
$this->onto,
$this->remote);
$cmd = "hg push";
}
if ($err) {
$repo_command = $repository_api->getSourceControlSystemName();
throw new ArcanistUsageException("'{$repo_command} push' failed.");
echo phutil_console_format("<bg:red>** PUSH FAILED! **</bg>\n");
throw new ArcanistUsageException(
"'{$cmd}' failed! Fix the error and push this change manually.");
}
$mark_workflow = $this->buildChildWorkflow(
@ -792,8 +795,7 @@ EOTEXT
$this->remote,
$this->branch);
}
}
else if ($this->isHg) {
} else if ($this->isHg) {
// named branches were closed as part of the earlier commit
// so only worry about bookmarks
if ($repository_api->isBookmark($this->branch)) {
@ -814,8 +816,7 @@ EOTEXT
$repository_api = $this->getRepositoryAPI();
if ($this->isGit) {
$branch = $repository_api->getBranchName();
}
else if ($this->isHg) {
} else if ($this->isHg) {
$branch = $repository_api->getActiveBookmark();
if (!$branch) {
$branch = $repository_api->getBranchName();
@ -824,4 +825,20 @@ EOTEXT
return $branch;
}
/**
* Restore the original branch, e.g. after a successful land or a failed
* pull.
*/
private function restoreBranch() {
$repository_api = $this->getRepositoryAPI();
$repository_api->execxLocal(
'checkout %s',
$this->oldBranch);
echo phutil_console_format(
"Switched back to branch **%s**.\n",
$this->oldBranch);
}
}