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ArcanistAmendWorkflow.php
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ArcanistAmendWorkflow.php
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<?php
/**
* Updates git commit messages after a revision is "Accepted".
*
* @group workflow
*/
final class ArcanistAmendWorkflow extends ArcanistBaseWorkflow {
public function getWorkflowName() {
return 'amend';
}
public function getCommandSynopses() {
return phutil_console_format(<<<EOTEXT
**amend** [--revision __revision_id__] [--show]
EOTEXT
);
}
public function getCommandHelp() {
return phutil_console_format(<<<EOTEXT
Supports: git, hg
Amend the working copy after a revision has been accepted, so commits
can be marked 'committed' and pushed upstream.
Supported in Mercurial 2.2 and newer.
EOTEXT
);
}
public function requiresWorkingCopy() {
return true;
}
public function requiresConduit() {
return true;
}
public function requiresAuthentication() {
return true;
}
public function requiresRepositoryAPI() {
return true;
}
public function getArguments() {
return array(
'show' => array(
'help' =>
"Show the amended commit message, without modifying the working copy."
),
'revision' => array(
'param' => 'revision_id',
'help' =>
"Amend a specific revision. If you do not specify a revision, ".
"arc will look in the commit message at HEAD.",
),
);
}
public function run() {
$is_show = $this->getArgument('show');
$repository_api = $this->getRepositoryAPI();
if (!$is_show) {
if (!$repository_api->supportsAmend()) {
throw new ArcanistUsageException(
"You may only run 'arc amend' in a git or hg (version ".
"2.2 or newer) working copy.");
}
if ($this->isHistoryImmutable()) {
throw new ArcanistUsageException(
"This project is marked as adhering to a conservative history ".
"mutability doctrine (having an immutable local history), which ".
"precludes amending commit messages. You can use 'arc merge' to ".
"merge feature branches instead.");
}
if ($repository_api->getUncommittedChanges()) {
throw new ArcanistUsageException(
"You have uncommitted changes in this branch. Stage and commit (or ".
"revert) them before proceeding.");
}
}
$revision_id = null;
if ($this->getArgument('revision')) {
$revision_id = $this->normalizeRevisionID($this->getArgument('revision'));
}
$repository_api->setBaseCommitArgumentRules('arc:this');
$in_working_copy = $repository_api->loadWorkingCopyDifferentialRevisions(
$this->getConduit(),
array(
'authors' => array($this->getUserPHID()),
'status' => 'status-any',
));
$in_working_copy = ipull($in_working_copy, null, 'id');
if (!$revision_id) {
if (count($in_working_copy) == 0) {
throw new ArcanistUsageException(
"No revision specified with '--revision', and no revisions found ".
"in the working copy. Use '--revision <id>' to specify which ".
"revision you want to amend.");
} else if (count($in_working_copy) > 1) {
$message = "More than one revision was found in the working copy:\n".
$this->renderRevisionList($in_working_copy)."\n".
"Use '--revision <id>' to specify which revision you want to ".
"amend.";
throw new ArcanistUsageException($message);
} else {
$revision_id = key($in_working_copy);
}
}
$conduit = $this->getConduit();
try {
$message = $conduit->callMethodSynchronous(
'differential.getcommitmessage',
array(
'revision_id' => $revision_id,
'edit' => false,
)
);
} catch (ConduitClientException $ex) {
if (strpos($ex->getMessage(), 'ERR_NOT_FOUND') === false) {
throw $ex;
} else {
throw new ArcanistUsageException(
"Revision D{$revision_id} does not exist."
);
}
}
$revision = $conduit->callMethodSynchronous(
'differential.query',
array(
'ids' => array($revision_id),
));
if (empty($revision)) {
throw new Exception(
"Failed to lookup information for 'D{$revision_id}'!");
}
$revision = head($revision);
$revision_title = $revision['title'];
if (!$is_show) {
if ($revision_id && empty($in_working_copy[$revision_id])) {
$ok = phutil_console_confirm(
"The revision 'D{$revision_id}' does not appear to be in the ".
"working copy. Are you sure you want to amend HEAD with the ".
"commit message for 'D{$revision_id}: {$revision_title}'?");
if (!$ok) {
throw new ArcanistUserAbortException();
}
}
}
if ($is_show) {
echo $message."\n";
} else {
echo phutil_console_format(
"Amending commit message to reflect revision **%s**.\n",
"D{$revision_id}: {$revision_title}");
$repository_api->amendCommit($message);
$mark_workflow = $this->buildChildWorkflow(
'close-revision',
array(
'--finalize',
$revision_id,
));
$mark_workflow->run();
}
return 0;
}
protected function getSupportedRevisionControlSystems() {
return array('git', 'hg');
}
}

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