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phorge/src/applications/differential/editor/revision/DifferentialRevisionEditor.php
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DifferentialRevisionEditor.php
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<?php
/*
* Copyright 2011 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Handle major edit operations to DifferentialRevision -- adding and removing
* reviewers, diffs, and CCs. Unlike simple edits, these changes trigger
* complicated email workflows.
*/
class DifferentialRevisionEditor {
protected $revision;
protected $actorPHID;
protected $cc = null;
protected $reviewers = null;
protected $diff;
protected $comments;
protected $silentUpdate;
public function __construct(DifferentialRevision $revision, $actor_phid) {
$this->revision = $revision;
$this->actorPHID = $actor_phid;
}
public static function newRevisionFromConduitWithDiff(
array $fields,
DifferentialDiff $diff,
$user_phid) {
$revision = new DifferentialRevision();
$revision->setPHID($revision->generatePHID());
$revision->setAuthorPHID($user_phid);
$revision->setStatus(DifferentialRevisionStatus::NEEDS_REVIEW);
$editor = new DifferentialRevisionEditor($revision, $user_phid);
$editor->copyFieldsFromConduit($fields);
$editor->addDiff($diff, null);
$editor->save();
return $revision;
}
public function copyFieldsFromConduit(array $fields) {
$revision = $this->revision;
$revision->setTitle((string)$fields['title']);
$revision->setSummary((string)$fields['summary']);
$revision->setTestPlan((string)$fields['testPlan']);
$revision->setBlameRevision((string)$fields['blameRevision']);
$revision->setRevertPlan((string)$fields['revertPlan']);
$this->setReviewers($fields['reviewerPHIDs']);
$this->setCCPHIDs($fields['ccPHIDs']);
}
/*
public static function newRevisionFromRawMessageWithDiff(
DifferentialRawMessage $message,
Diff $diff,
$user) {
if ($message->getRevisionID()) {
throw new Exception(
"The provided commit message is already associated with a ".
"Differential revision.");
}
if ($message->getReviewedByNames()) {
throw new Exception(
"The provided commit message contains a 'Reviewed By:' field.");
}
$revision = new DifferentialRevision();
$revision->setPHID($revision->generatePHID());
$revision->setOwnerID($user);
$revision->setStatus(DifferentialRevisionStatus::NEEDS_REVIEW);
$revision->attachReviewers(array());
$revision->attachCCPHIDs(array());
$editor = new DifferentialRevisionEditor($revision, $user);
self::copyFields($editor, $revision, $message, $user);
$editor->addDiff($diff, null);
$editor->save();
return $revision;
}
public static function copyFields(
DifferentialRevisionEditor $editor,
DifferentialRevision $revision,
DifferentialRawMessage $message,
$user) {
$revision->setName($message->getTitle());
$revision->setSummary($message->getSummary());
$revision->setTestPlan($message->getTestPlan());
$revision->setSVNBlameRevision($message->getBlameRevision());
$revision->setRevert($message->getRevertPlan());
$revision->setPlatformImpact($message->getPlatformImpact());
$revision->setBugzillaID($message->getBugzillaID());
$editor->setReviewers($message->getReviewerPHIDs());
$editor->setCCPHIDs($message->getCCPHIDs());
}
*/
public function getRevision() {
return $this->revision;
}
public function setReviewers(array $reviewers) {
$this->reviewers = $reviewers;
return $this;
}
public function setCCPHIDs(array $cc) {
$this->cc = $cc;
return $this;
}
public function addDiff(DifferentialDiff $diff, $comments) {
if ($diff->getRevisionID() &&
$diff->getRevisionID() != $this->getRevision()->getID()) {
$diff_id = (int)$diff->getID();
$targ_id = (int)$this->getRevision()->getID();
$real_id = (int)$diff->getRevisionID();
throw new Exception(
"Can not attach diff #{$diff_id} to Revision D{$targ_id}, it is ".
"already attached to D{$real_id}.");
}
$this->diff = $diff;
$this->comments = $comments;
return $this;
}
protected function getDiff() {
return $this->diff;
}
protected function getComments() {
return $this->comments;
}
protected function getActorPHID() {
return $this->actorPHID;
}
public function isNewRevision() {
return !$this->getRevision()->getID();
}
/**
* A silent update does not trigger Herald rules or send emails. This is used
* for auto-amends at commit time.
*/
public function setSilentUpdate($silent) {
$this->silentUpdate = $silent;
return $this;
}
public function save() {
$revision = $this->getRevision();
// TODO
// $revision->openTransaction();
$is_new = $this->isNewRevision();
if ($is_new) {
// These fields aren't nullable; set them to sensible defaults if they
// haven't been configured. We're just doing this so we can generate an
// ID for the revision if we don't have one already.
$revision->setLineCount(0);
if ($revision->getStatus() === null) {
$revision->setStatus(DifferentialRevisionStatus::NEEDS_REVIEW);
}
if ($revision->getTitle() === null) {
$revision->setTitle('Untitled Revision');
}
if ($revision->getAuthorPHID() === null) {
$revision->setAuthorPHID($this->getActorPHID());
}
$revision->save();
}
$revision->loadRelationships();
if ($this->reviewers === null) {
$this->reviewers = $revision->getReviewers();
}
if ($this->cc === null) {
$this->cc = $revision->getCCPHIDs();
}
// We're going to build up three dictionaries: $add, $rem, and $stable. The
// $add dictionary has added reviewers/CCs. The $rem dictionary has
// reviewers/CCs who have been removed, and the $stable array is
// reviewers/CCs who haven't changed. We're going to send new reviewers/CCs
// a different ("welcome") email than we send stable reviewers/CCs.
$old = array(
'rev' => array_fill_keys($revision->getReviewers(), true),
'ccs' => array_fill_keys($revision->getCCPHIDs(), true),
);
$diff = $this->getDiff();
$xscript_header = null;
$xscript_uri = null;
$new = array(
'rev' => array_fill_keys($this->reviewers, true),
'ccs' => array_fill_keys($this->cc, true),
);
$rem_ccs = array();
if ($diff) {
$diff->setRevisionID($revision->getID());
$revision->setLineCount($diff->getLineCount());
// TODO!
// $revision->setRepositoryID($diff->getRepositoryID());
/*
$iface = new DifferentialRevisionHeraldable($revision);
$iface->setExplicitCCs($new['ccs']);
$iface->setExplicitReviewers($new['rev']);
$iface->setForbiddenCCs($revision->getForbiddenCCPHIDs());
$iface->setForbiddenReviewers($revision->getForbiddenReviewers());
$iface->setDiff($diff);
$xscript = HeraldEngine::loadAndApplyRules($iface);
$xscript_uri = $xscript->getURI();
$xscript_phid = $xscript->getPHID();
$xscript_header = $xscript->getXHeraldRulesHeader();
$sub = array(
'rev' => array(),
'ccs' => $iface->getCCsAddedByHerald(),
);
$rem_ccs = $iface->getCCsRemovedByHerald();
*/
// TODO!
$sub = array(
'rev' => array(),
'ccs' => array(),
);
} else {
$sub = array(
'rev' => array(),
'ccs' => array(),
);
}
// Remove any CCs which are prevented by Herald rules.
$sub['ccs'] = array_diff_key($sub['ccs'], $rem_ccs);
$new['ccs'] = array_diff_key($new['ccs'], $rem_ccs);
$add = array();
$rem = array();
$stable = array();
foreach (array('rev', 'ccs') as $key) {
$add[$key] = array();
if ($new[$key] !== null) {
$add[$key] += array_diff_key($new[$key], $old[$key]);
}
$add[$key] += array_diff_key($sub[$key], $old[$key]);
$combined = $sub[$key];
if ($new[$key] !== null) {
$combined += $new[$key];
}
$rem[$key] = array_diff_key($old[$key], $combined);
$stable[$key] = array_diff_key($old[$key], $add[$key] + $rem[$key]);
}
self::alterReviewers(
$revision,
$this->reviewers,
array_keys($rem['rev']),
array_keys($add['rev']),
$this->actorPHID);
/*
// TODO: When Herald is brought over, run through this stuff to figure
// out which adds are Herald's fault.
if ($add['ccs'] || $rem['ccs']) {
foreach (array_keys($add['ccs']) as $id) {
if (empty($new['ccs'][$id])) {
$reason_phid = 'TODO';//$xscript_phid;
} else {
$reason_phid = $this->getActorPHID();
}
}
foreach (array_keys($rem['ccs']) as $id) {
if (empty($new['ccs'][$id])) {
$reason_phid = $this->getActorPHID();
} else {
$reason_phid = 'TODO';//$xscript_phid;
}
}
}
*/
self::alterCCs(
$revision,
$this->cc,
array_keys($rem['ccs']),
array_keys($add['ccs']),
$this->actorPHID);
// Add the author to the relevant set of users so they get a copy of the
// email.
if (!$this->silentUpdate) {
if ($is_new) {
$add['rev'][$this->getActorPHID()] = true;
} else {
$stable['rev'][$this->getActorPHID()] = true;
}
}
$mail = array();
$phids = array($this->getActorPHID());
$handles = id(new PhabricatorObjectHandleData($phids))
->loadHandles();
$actor_handle = $handles[$this->getActorPHID()];
$changesets = null;
$comment = null;
if ($diff) {
$changesets = $diff->loadChangesets();
// TODO: This should probably be in DifferentialFeedbackEditor?
if (!$is_new) {
$comment = $this->createComment();
}
if ($comment) {
$mail[] = id(new DifferentialNewDiffMail(
$revision,
$actor_handle,
$changesets))
->setIsFirstMailAboutRevision($is_new)
->setIsFirstMailToRecipients($is_new)
->setComments($this->getComments())
->setToPHIDs(array_keys($stable['rev']))
->setCCPHIDs(array_keys($stable['ccs']));
}
// Save the changes we made above.
$diff->setDescription(substr($this->getComments(), 0, 80));
$diff->save();
// An updated diff should require review, as long as it's not committed
// or accepted. The "accepted" status is "sticky" to encourage courtesy
// re-diffs after someone accepts with minor changes/suggestions.
$status = $revision->getStatus();
if ($status != DifferentialRevisionStatus::COMMITTED &&
$status != DifferentialRevisionStatus::ACCEPTED) {
$revision->setStatus(DifferentialRevisionStatus::NEEDS_REVIEW);
}
} else {
$diff = $revision->loadActiveDiff();
if ($diff) {
$changesets = $diff->loadChangesets();
} else {
$changesets = array();
}
}
$revision->save();
// TODO
// $revision->saveTransaction();
$event = array(
'revision_id' => $revision->getID(),
'PHID' => $revision->getPHID(),
'action' => $is_new ? 'create' : 'update',
'actor' => $this->getActorPHID(),
);
// TODO: When timelines get implemented, move indexing to them.
PhabricatorSearchDifferentialIndexer::indexRevision($revision);
// TODO
// id(new ToolsTimelineEvent('difx', fb_json_encode($event)))->record();
if ($this->silentUpdate) {
return;
}
$revision->loadRelationships();
if ($add['rev']) {
$message = id(new DifferentialNewDiffMail(
$revision,
$actor_handle,
$changesets))
->setIsFirstMailAboutRevision($is_new)
->setIsFirstMailToRecipients(true)
->setToPHIDs(array_keys($add['rev']));
if ($is_new) {
// The first time we send an email about a revision, put the CCs in
// the "CC:" field of the same "Review Requested" email that reviewers
// get, so you don't get two initial emails if you're on a list that
// is CC'd.
$message->setCCPHIDs(array_keys($add['ccs']));
}
$mail[] = $message;
}
// If you were added as a reviewer and a CC, just give you the reviewer
// email. We could go to greater lengths to prevent this, but there's
// bunch of stuff with list subscriptions anyway. You can still get two
// emails, but only if a revision is updated and you are added as a reviewer
// at the same time a list you are on is added as a CC, which is rare and
// reasonable.
$add['ccs'] = array_diff_key($add['ccs'], $add['rev']);
if (!$is_new && $add['ccs']) {
$mail[] = id(new DifferentialCCWelcomeMail(
$revision,
$actor_handle,
$changesets))
->setIsFirstMailToRecipients(true)
->setToPHIDs(array_keys($add['ccs']));
}
foreach ($mail as $message) {
// TODO
// $message->setHeraldTranscriptURI($xscript_uri);
// $message->setXHeraldRulesHeader($xscript_header);
$message->send();
}
}
protected static function alterCCs(
DifferentialRevision $revision,
array $stable_phids,
array $rem_phids,
array $add_phids,
$reason_phid) {
return self::alterRelationships(
$revision,
$stable_phids,
$rem_phids,
$add_phids,
$reason_phid,
DifferentialRevision::RELATION_SUBSCRIBED);
}
public static function alterReviewers(
DifferentialRevision $revision,
array $stable_phids,
array $rem_phids,
array $add_phids,
$reason_phid) {
return self::alterRelationships(
$revision,
$stable_phids,
$rem_phids,
$add_phids,
$reason_phid,
DifferentialRevision::RELATION_REVIEWER);
}
private static function alterRelationships(
DifferentialRevision $revision,
array $stable_phids,
array $rem_phids,
array $add_phids,
$reason_phid,
$relation_type) {
$rem_map = array_fill_keys($rem_phids, true);
$add_map = array_fill_keys($add_phids, true);
$seq_map = array_values($stable_phids);
$seq_map = array_flip($seq_map);
foreach ($rem_map as $phid => $ignored) {
if (!isset($seq_map[$phid])) {
$seq_map[$phid] = count($seq_map);
}
}
foreach ($add_map as $phid => $ignored) {
if (!isset($seq_map[$phid])) {
$seq_map[$phid] = count($seq_map);
}
}
$raw = $revision->getRawRelations($relation_type);
$raw = ipull($raw, null, 'objectPHID');
$sequence = count($seq_map);
foreach ($raw as $phid => $ignored) {
if (isset($seq_map[$phid])) {
$raw[$phid]['sequence'] = $seq_map[$phid];
} else {
$raw[$phid]['sequence'] = $sequence++;
}
}
$raw = isort($raw, 'sequence');
foreach ($raw as $phid => $ignored) {
if (isset($rem_map[$phid])) {
unset($raw[$phid]);
}
}
foreach ($add_phids as $add) {
$raw[$add] = array(
'objectPHID' => $add,
'sequence' => idx($seq_map, $add, $sequence++),
'reasonPHID' => $reason_phid,
);
}
$conn_w = $revision->establishConnection('w');
$sql = array();
foreach ($raw as $relation) {
$sql[] = qsprintf(
$conn_w,
'(%d, %s, %s, %d, %s)',
$revision->getID(),
$relation_type,
$relation['objectPHID'],
$relation['sequence'],
$relation['reasonPHID']);
}
$conn_w->openTransaction();
queryfx(
$conn_w,
'DELETE FROM %T WHERE revisionID = %d AND relation = %s',
DifferentialRevision::RELATIONSHIP_TABLE,
$revision->getID(),
$relation_type);
if ($sql) {
queryfx(
$conn_w,
'INSERT INTO %T
(revisionID, relation, objectPHID, sequence, reasonPHID)
VALUES %Q',
DifferentialRevision::RELATIONSHIP_TABLE,
implode(', ', $sql));
}
$conn_w->saveTransaction();
}
private function createComment() {
$revision_id = $this->revision->getID();
$comment = id(new DifferentialComment())
->setAuthorPHID($this->getActorPHID())
->setRevisionID($revision_id)
->setContent($this->getComments())
->setAction('update');
$comment->save();
return $comment;
}
}

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