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DifferentialRevisionStatsView.php
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Wed, Nov 27, 15:16

DifferentialRevisionStatsView.php
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<?php
/*
* Copyright 2012 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.
*/
/**
* Render some distracting statistics on revisions
*/
final class DifferentialRevisionStatsView extends AphrontView {
private $comments;
private $revisions;
private $diffs;
private $user;
private $filter;
public function setRevisions(array $revisions) {
assert_instances_of($revisions, 'DifferentialRevision');
$this->revisions = $revisions;
return $this;
}
public function setComments(array $comments) {
assert_instances_of($comments, 'DifferentialComment');
$this->comments = $comments;
return $this;
}
public function setDiffs(array $diffs) {
assert_instances_of($diffs, 'DifferentialDiff');
$this->diffs = $diffs;
return $this;
}
public function setFilter($filter) {
$this->filter = $filter;
return $this;
}
public function setUser($user) {
$this->user = $user;
return $this;
}
public function render() {
$user = $this->user;
if (!$user) {
throw new Exception("Call setUser() before render()!");
}
$id_to_revision_map = array();
foreach ($this->revisions as $rev) {
$id_to_revision_map[$rev->getID()] = $rev;
}
$revisions_seen = array();
$dates = array();
$counts = array();
$lines = array();
$days_with_diffs = array();
$count_active = array();
$response_time = array();
$response_count = array();
$now = time();
$row_array = array();
foreach (array(
'1 week', '2 weeks', '3 weeks',
'1 month', '2 months', '3 months', '6 months', '9 months',
'1 year', '18 months',
'2 years', '3 years', '4 years', '5 years',
) as $age) {
$dates[$age] = strtotime($age . ' ago 23:59:59');
$counts[$age] = 0;
$lines[$age] = 0;
$count_active[$age] = 0;
$response_time[$age] = array();
}
$revision_diffs_map = mgroup($this->diffs, 'getRevisionID');
foreach ($revision_diffs_map as $revision_id => $diffs) {
$revision_diffs_map[$revision_id] = msort($diffs, 'getID');
}
foreach ($this->comments as $comment) {
$comment_date = $comment->getDateCreated();
$day = phabricator_date($comment_date, $user);
$old_daycount = idx($days_with_diffs, $day, 0);
$days_with_diffs[$day] = $old_daycount + 1;
$rev_id = $comment->getRevisionID();
if (idx($revisions_seen, $rev_id)) {
$revision_seen = true;
$rev = null;
} else {
$revision_seen = false;
$rev = $id_to_revision_map[$rev_id];
$revisions_seen[$rev_id] = true;
}
foreach ($dates as $age => $cutoff) {
if ($cutoff >= $comment_date) {
continue;
}
if (!$revision_seen) {
if ($rev) {
$lines[$age] += $rev->getLineCount();
}
$counts[$age]++;
if (!$old_daycount) {
$count_active[$age]++;
}
}
$diffs = $revision_diffs_map[$rev_id];
$target_diff = $this->findTargetDiff($diffs, $comment);
if ($target_diff) {
$response_time[$age][] =
$comment_date - $target_diff->getDateCreated();
}
}
}
$old_count = 0;
foreach (array_reverse($dates) as $age => $cutoff) {
$weeks = ceil(($now - $cutoff) / (60 * 60 * 24)) / 7;
if ($old_count == $counts[$age] && count($row_array) == 1) {
unset($dates[last_key($row_array)]);
$row_array = array();
}
$old_count = $counts[$age];
$row_array[$age] = array(
'Revisions per week' => number_format($counts[$age] / $weeks, 2),
'Lines per week' => number_format($lines[$age] / $weeks, 1),
'Active days per week' =>
number_format($count_active[$age] / $weeks, 1),
'Revisions' => number_format($counts[$age]),
'Lines' => number_format($lines[$age]),
'Lines per diff' => number_format($lines[$age] /
($counts[$age] + 0.0001)),
'Active days' => number_format($count_active[$age]),
);
switch ($this->filter) {
case DifferentialAction::ACTION_CLOSE:
case DifferentialAction::ACTION_UPDATE:
case DifferentialAction::ACTION_COMMENT:
break;
case DifferentialAction::ACTION_ACCEPT:
case DifferentialAction::ACTION_REJECT:
$count = count($response_time[$age]);
if ($count) {
rsort($response_time[$age]);
$median = $response_time[$age][round($count / 2) - 1];
$average = array_sum($response_time[$age]) / $count;
} else {
$median = 0;
$average = 0;
}
$row_array[$age]['Response hours (median|average)'] =
number_format($median / 3600, 1).
' | '.
number_format($average / 3600, 1);
break;
}
}
$rows = array();
$row_names = array_keys(head($row_array));
foreach ($row_names as $row_name) {
$rows[] = array($row_name);
}
foreach (array_keys($dates) as $age) {
$i = 0;
foreach ($row_names as $row_name) {
$rows[$i][] = idx(idx($row_array, $age), $row_name, '-');
++$i;
}
}
$table = new AphrontTableView($rows);
$table->setColumnClasses(
array(
'wide pri',
));
$table->setHeaders(
array_merge(
array(
'Metric',
),
array_keys($dates)));
return $table->render();
}
private function findTargetDiff(array $diffs,
DifferentialComment $comment) {
switch ($this->filter) {
case DifferentialAction::ACTION_CLOSE:
case DifferentialAction::ACTION_UPDATE:
case DifferentialAction::ACTION_COMMENT:
return null;
case DifferentialAction::ACTION_ACCEPT:
case DifferentialAction::ACTION_REJECT:
$result = head($diffs);
foreach ($diffs as $diff) {
if ($diff->getDateCreated() >= $comment->getDateCreated()) {
break;
}
$result = $diff;
}
return $result;
}
}
}

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