mirror of
https://we.phorge.it/source/arcanist.git
synced 2024-11-10 00:42:40 +01:00
3a559ddd13
Summary: The story for creating and maintaining libphutil libraries and modules is pretty terrible right now: you need to know a bunch of secret scripts and dark magic. Provide 'arc liberate' which endeavors to always do the right thing and put a library in the correct state. Test Plan: Ran liberate on libphutil, arcanist, phabricator; created new libphutil libraries, added classes to them, liberated everything, introduced errors etc and liberated that stuff, nothing was obviously broken in a terrible way..? Reviewed By: aran Reviewers: jungejason, tuomaspelkonen, aran CC: aran, epriestley Differential Revision: 269
214 lines
5.5 KiB
PHP
Executable file
214 lines
5.5 KiB
PHP
Executable file
#!/usr/bin/env php
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<?php
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/*
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* Copyright 2011 Facebook, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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require_once dirname(__FILE__).'/__init_script__.php';
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$liberate_mode = false;
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for ($ii = 0; $ii < $argc; $ii++) {
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if ($argv[$ii] == '--find-paths-for-liberate') {
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$liberate_mode = true;
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unset($argv[$ii]);
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}
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}
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$argv = array_values($argv);
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$argc = count($argv);
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if ($argc != 2) {
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$self = basename($argv[0]);
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echo "usage: {$self} <phutil_library_root>\n";
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exit(1);
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}
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phutil_require_module('phutil', 'filesystem');
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phutil_require_module('phutil', 'filesystem/filefinder');
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phutil_require_module('phutil', 'future/exec');
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$root = Filesystem::resolvePath($argv[1]);
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if (!@file_exists($root.'/__phutil_library_init__.php')) {
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throw new Exception("Provided path is not a phutil library.");
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}
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if ($liberate_mode) {
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ob_start();
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}
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echo "Finding phutil modules...\n";
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$files = id(new FileFinder($root))
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->withType('f')
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->withSuffix('php')
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->excludePath('*/.*')
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->setGenerateChecksums(true)
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->find();
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// NOTE: Sorting by filename ensures that hash computation is stable; it is
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// important we sort by name instead of by hash because sorting by hash could
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// create a bad cache hit if the user swaps the contents of two files.
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ksort($files);
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$modules = array();
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foreach ($files as $file => $hash) {
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if (dirname($file) == $root) {
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continue;
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}
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$modules[Filesystem::readablePath(dirname($file), $root)][] = $hash;
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}
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echo "Found ".count($files)." files in ".count($modules)." modules.\n";
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$signatures = array();
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foreach ($modules as $module => $hashes) {
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$hashes = implode(' ', $hashes);
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$signature = md5($hashes);
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$signatures[$module] = $signature;
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}
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try {
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$cache = Filesystem::readFile($root.'/.phutil_module_cache');
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} catch (Exception $ex) {
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$cache = null;
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}
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$signature_cache = array();
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if ($cache) {
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$signature_cache = json_decode($cache, true);
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if (!is_array($signature_cache)) {
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$signature_cache = array();
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}
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}
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$specs = array();
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$need_update = array();
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foreach ($signatures as $module => $signature) {
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if (isset($signature_cache[$module]) &&
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$signature_cache[$module]['signature'] == $signature) {
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$specs[$module] = $signature_cache[$module];
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} else {
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$need_update[$module] = true;
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}
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}
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$futures = array();
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foreach ($need_update as $module => $ignored) {
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$futures[$module] = new ExecFuture(
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'%s %s',
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dirname(__FILE__).'/phutil_analyzer.php',
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$root.'/'.$module);
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}
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if ($futures) {
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echo "Found ".count($specs)." modules in cache; ".
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"analyzing ".count($futures)." modified modules";
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foreach (Futures($futures)->limit(8) as $module => $future) {
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echo ".";
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$specs[$module] = array(
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'signature' => $signatures[$module],
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'spec' => $future->resolveJSON(),
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);
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}
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echo "\n";
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} else {
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echo "All modules were found in cache.\n";
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}
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$class_map = array();
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$requires_class_map = array();
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$requires_interface_map = array();
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$function_map = array();
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foreach ($specs as $module => $info) {
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$spec = $info['spec'];
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foreach (array('class', 'interface') as $type) {
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foreach ($spec['declares'][$type] as $class => $where) {
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if (!empty($class_map[$class])) {
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$prior = $class_map[$class];
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echo "\n";
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echo "Error: definition of {$type} '{$class}' in module '{$module}' ".
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"duplicates prior definition in module '{$prior}'.";
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echo "\n";
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exit(1);
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}
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$class_map[$class] = $module;
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}
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}
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if (!empty($spec['chain']['class'])) {
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$requires_class_map += $spec['chain']['class'];
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}
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if (!empty($spec['chain']['interface'])) {
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$requires_interface_map += $spec['chain']['interface'];
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}
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foreach ($spec['declares']['function'] as $function => $where) {
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if (!empty($function_map[$function])) {
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$prior = $function_map[$function];
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echo "\n";
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echo "Error: definition of function '{$function}' in module '{$module}' ".
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"duplicates prior definition in module '{$prior}'.";
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echo "\n";
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exit(1);
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}
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$function_map[$function] = $module;
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}
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}
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echo "\n";
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ksort($class_map);
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ksort($requires_class_map);
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ksort($requires_interface_map);
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ksort($function_map);
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$library_map = array(
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'class' => $class_map,
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'function' => $function_map,
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'requires_class' => $requires_class_map,
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'requires_interface' => $requires_interface_map,
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);
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$library_map = var_export($library_map, $return_string = true);
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$library_map = preg_replace('/\s+$/m', '', $library_map);
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$library_map = preg_replace('/array \(/', 'array(', $library_map);
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$at = '@';
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$map_file = <<<EOPHP
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<?php
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/**
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* This file is automatically generated. Use 'phutil_mapper.php' to rebuild it.
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* {$at}generated
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*/
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phutil_register_library_map({$library_map});
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EOPHP;
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echo "Writing library map file...\n";
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Filesystem::writeFile($root.'/__phutil_library_map__.php', $map_file);
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if ($liberate_mode) {
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ob_get_clean();
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echo json_encode(array_keys($need_update))."\n";
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return;
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}
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echo "Writing module cache...\n";
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Filesystem::writeFile(
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$root.'/.phutil_module_cache',
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json_encode($specs));
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echo "Done.\n";
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