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DifferentialParseCommitMessageConduitAPIMethod.php
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Tue, Nov 26, 04:32

DifferentialParseCommitMessageConduitAPIMethod.php
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<?php
final class DifferentialParseCommitMessageConduitAPIMethod
extends DifferentialConduitAPIMethod {
private $errors;
public function getAPIMethodName() {
return 'differential.parsecommitmessage';
}
public function getMethodDescription() {
return pht('Parse commit messages for Differential fields.');
}
public function defineParamTypes() {
return array(
'corpus' => 'required string',
'partial' => 'optional bool',
);
}
public function defineReturnType() {
return 'nonempty dict';
}
public function defineErrorTypes() {
return array();
}
protected function execute(ConduitAPIRequest $request) {
$viewer = $request->getUser();
$corpus = $request->getValue('corpus');
$is_partial = $request->getValue('partial');
$revision = new DifferentialRevision();
$field_list = PhabricatorCustomField::getObjectFields(
$revision,
DifferentialCustomField::ROLE_COMMITMESSAGE);
$field_list->setViewer($viewer);
$field_map = mpull($field_list->getFields(), null, 'getFieldKeyForConduit');
$this->errors = array();
$label_map = $this->buildLabelMap($field_list);
$corpus_map = $this->parseCommitMessage($corpus, $label_map);
$values = array();
foreach ($corpus_map as $field_key => $text_value) {
$field = idx($field_map, $field_key);
if (!$field) {
throw new Exception(
pht(
'Parser emitted text value for field key "%s", but no such '.
'field exists.',
$field_key));
}
try {
$values[$field_key] = $field->parseValueFromCommitMessage($text_value);
} catch (DifferentialFieldParseException $ex) {
$this->errors[] = pht(
'Error parsing field "%s": %s',
$field->renderCommitMessageLabel(),
$ex->getMessage());
}
}
if (!$is_partial) {
foreach ($field_map as $key => $field) {
try {
$field->validateCommitMessageValue(idx($values, $key));
} catch (DifferentialFieldValidationException $ex) {
$this->errors[] = pht(
'Invalid or missing field "%s": %s',
$field->renderCommitMessageLabel(),
$ex->getMessage());
}
}
}
return array(
'errors' => $this->errors,
'fields' => $values,
);
}
private function buildLabelMap(PhabricatorCustomFieldList $field_list) {
$label_map = array();
foreach ($field_list->getFields() as $key => $field) {
$labels = $field->getCommitMessageLabels();
$key = $field->getFieldKeyForConduit();
foreach ($labels as $label) {
$normal_label = DifferentialCommitMessageParser::normalizeFieldLabel(
$label);
if (!empty($label_map[$normal_label])) {
throw new Exception(
pht(
'Field label "%s" is parsed by two custom fields: "%s" and '.
'"%s". Each label must be parsed by only one field.',
$label,
$key,
$label_map[$normal_label]));
}
$label_map[$normal_label] = $key;
}
}
return $label_map;
}
private function parseCommitMessage($corpus, array $label_map) {
$key_title = id(new DifferentialTitleField())->getFieldKeyForConduit();
$key_summary = id(new DifferentialSummaryField())->getFieldKeyForConduit();
$parser = id(new DifferentialCommitMessageParser())
->setLabelMap($label_map)
->setTitleKey($key_title)
->setSummaryKey($key_summary);
$result = $parser->parseCorpus($corpus);
foreach ($parser->getErrors() as $error) {
$this->errors[] = $error;
}
return $result;
}
}

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