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PhabricatorFilesManagementMigrateWorkflow.php
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Created
Tue, May 13, 20:42

PhabricatorFilesManagementMigrateWorkflow.php
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<?php
final class PhabricatorFilesManagementMigrateWorkflow
extends PhabricatorFilesManagementWorkflow {
protected function didConstruct() {
$this
->setName('migrate')
->setSynopsis(pht('Migrate files between storage engines.'))
->setArguments(
array(
array(
'name' => 'engine',
'param' => 'storage_engine',
'help' => pht('Migrate to the named storage engine.'),
),
array(
'name' => 'dry-run',
'help' => pht('Show what would be migrated.'),
),
array(
'name' => 'all',
'help' => pht('Migrate all files.'),
),
array(
'name' => 'names',
'wildcard' => true,
),
));
}
public function execute(PhutilArgumentParser $args) {
$target_key = $args->getArg('engine');
if (!$target_key) {
throw new PhutilArgumentUsageException(
pht(
'Specify an engine to migrate to with `%s`. '.
'Use `%s` to get a list of engines.',
'--engine',
'files engines'));
}
$target_engine = PhabricatorFile::buildEngine($target_key);
$iterator = $this->buildIterator($args);
if (!$iterator) {
throw new PhutilArgumentUsageException(
pht(
'Either specify a list of files to migrate, or use `%s` '.
'to migrate all files.',
'--all'));
}
$is_dry_run = $args->getArg('dry-run');
$failed = array();
$engines = PhabricatorFileStorageEngine::loadAllEngines();
foreach ($iterator as $file) {
$monogram = $file->getMonogram();
$engine_key = $file->getStorageEngine();
$engine = idx($engines, $engine_key);
if (!$engine) {
echo tsprintf(
"%s\n",
pht(
'%s: Uses unknown storage engine "%s".',
$monogram,
$engine_key));
$failed[] = $file;
continue;
}
if ($engine->isChunkEngine()) {
echo tsprintf(
"%s\n",
pht(
'%s: Stored as chunks, no data to migrate directly.',
$monogram));
continue;
}
if ($engine_key === $target_key) {
echo tsprintf(
"%s\n",
pht(
'%s: Already stored in engine "%s".',
$monogram,
$target_key));
continue;
}
if ($is_dry_run) {
echo tsprintf(
"%s\n",
pht(
'%s: Would migrate from "%s" to "%s" (dry run).',
$monogram,
$engine_key,
$target_key));
continue;
}
echo tsprintf(
"%s\n",
pht(
'%s: Migrating from "%s" to "%s"...',
$monogram,
$engine_key,
$target_key));
try {
$file->migrateToEngine($target_engine);
echo tsprintf(
"%s\n",
pht('Done.'));
} catch (Exception $ex) {
echo tsprintf(
"%s\n",
pht('Failed! %s', (string)$ex));
$failed[] = $file;
throw $ex;
}
}
if ($failed) {
$monograms = mpull($failed, 'getMonogram');
echo tsprintf(
"%s\n",
pht('Failures: %s.', implode(', ', $monograms)));
return 1;
}
return 0;
}
}

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