/**
* Update the table which links Differential revisions to paths they affect,
* so Diffusion can efficiently find pending revisions for a given file.
*/
private function updateAffectedPathTable(DifferentialRevision $revision, DifferentialDiff $diff, array $changesets)
{
assert_instances_of($changesets, 'DifferentialChangeset');
$project = $diff->loadArcanistProject();
if (!$project) {
// Probably an old revision from before projects.
return;
}
$repository = $project->loadRepository();
if (!$repository) {
// Probably no project <-> repository link, or the repository where the
// project lives is untracked.
return;
}
$path_prefix = null;
$local_root = $diff->getSourceControlPath();
if ($local_root) {
// We're in a working copy which supports subdirectory checkouts (e.g.,
// SVN) so we need to figure out what prefix we should add to each path
// (e.g., trunk/projects/example/) to get the absolute path from the
// root of the repository. DVCS systems like Git and Mercurial are not
// affected.
// Normalize both paths and check if the repository root is a prefix of
// the local root. If so, throw it away. Note that this correctly handles
// the case where the remote path is "/".
$local_root = id(new PhutilURI($local_root))->getPath();
$local_root = rtrim($local_root, '/');
$repo_root = id(new PhutilURI($repository->getRemoteURI()))->getPath();
$repo_root = rtrim($repo_root, '/');
if (!strncmp($repo_root, $local_root, strlen($repo_root))) {
$path_prefix = substr($local_root, strlen($repo_root));
}
}
$paths = array();
foreach ($changesets as $changeset) {
$paths[] = $path_prefix . '/' . $changeset->getFilename();
}
// Mark this as also touching all parent paths, so you can see all pending
// changes to any file within a directory.
$all_paths = array();
foreach ($paths as $local) {
foreach (DiffusionPathIDQuery::expandPathToRoot($local) as $path) {
$all_paths[$path] = true;
}
}
$all_paths = array_keys($all_paths);
$path_map = id(new DiffusionPathIDQuery($all_paths))->loadPathIDs();
$table = new DifferentialAffectedPath();
$conn_w = $table->establishConnection('w');
$sql = array();
foreach ($all_paths as $path) {
$path_id = idx($path_map, $path);
if (!$path_id) {
// Don't bother creating these, it probably means we're either adding
// a file (in which case having this row is irrelevant since Diffusion
// won't be querying for it) or something is misconfigured (in which
// case we'd just be writing garbage).
continue;
}
$sql[] = qsprintf($conn_w, '(%d, %d, %d, %d)', $repository->getID(), $path_id, time(), $revision->getID());
}
queryfx($conn_w, 'DELETE FROM %T WHERE revisionID = %d', $table->getTableName(), $revision->getID());
foreach (array_chunk($sql, 256) as $chunk) {
queryfx($conn_w, 'INSERT INTO %T (repositoryID, pathID, epoch, revisionID) VALUES %Q', $table->getTableName(), implode(', ', $chunk));
}
}