MediaWiki  master
generateJsonI18n.php
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1 <?php
2 
28 require_once __DIR__ . '/Maintenance.php';
29 
36  public function __construct() {
37  parent::__construct();
38  $this->addDescription( 'Build JSON messages files from a PHP messages file' );
39 
40  $this->addArg( 'phpfile', 'PHP file defining a $messages array', false );
41  $this->addArg( 'jsondir', 'Directory to write JSON files to', false );
42  $this->addOption( 'extension', 'Perform default conversion on an extension',
43  false, true );
44  $this->addOption( 'supplementary', 'Find supplementary i18n files in subdirs and convert those',
45  false, false );
46  }
47 
48  public function execute() {
49  global $IP;
50 
51  $phpfile = $this->getArg( 0 );
52  $jsondir = $this->getArg( 1 );
53  $extension = $this->getOption( 'extension' );
54  $convertSupplementaryI18nFiles = $this->hasOption( 'supplementary' );
55 
56  if ( $extension ) {
57  if ( $phpfile ) {
58  $this->fatalError( "The phpfile is already specified, conflicts with --extension." );
59  }
60  $phpfile = "$IP/extensions/$extension/$extension.i18n.php";
61  }
62 
63  if ( !$phpfile ) {
64  $this->error( "I'm here for an argument!" );
65  $this->maybeHelp( true );
66  // dies.
67  }
68 
69  if ( $convertSupplementaryI18nFiles ) {
70  if ( is_readable( $phpfile ) ) {
71  $this->transformI18nFile( $phpfile, $jsondir );
72  } else {
73  // This is non-fatal because we might want to continue searching for
74  // i18n files in subdirs even if the extension does not include a
75  // primary i18n.php.
76  $this->error( "Warning: no primary i18n file was found." );
77  }
78  $this->output( "Searching for supplementary i18n files...\n" );
79  $dir_iterator = new RecursiveDirectoryIterator( dirname( $phpfile ) );
80  $iterator = new RecursiveIteratorIterator(
81  $dir_iterator, RecursiveIteratorIterator::LEAVES_ONLY );
83  foreach ( $iterator as $path => $fileObject ) {
84  if ( fnmatch( "*.i18n.php", $fileObject->getFilename() ) ) {
85  $this->output( "Converting $path.\n" );
86  $this->transformI18nFile( $path );
87  }
88  }
89  } else {
90  // Just convert the primary i18n file.
91  $this->transformI18nFile( $phpfile, $jsondir );
92  }
93  }
94 
95  public function transformI18nFile( $phpfile, $jsondir = null ) {
96  if ( !$jsondir ) {
97  // Assume the json directory should be in the same directory as the
98  // .i18n.php file.
99  $jsondir = dirname( $phpfile ) . "/i18n";
100  }
101  if ( !is_dir( $jsondir ) ) {
102  $this->output( "Creating directory $jsondir.\n" );
103  $success = mkdir( $jsondir );
104  if ( !$success ) {
105  $this->fatalError( "Could not create directory $jsondir" );
106  }
107  }
108 
109  if ( !is_readable( $phpfile ) ) {
110  $this->fatalError( "Error reading $phpfile" );
111  }
112  $messages = null;
113  include $phpfile;
114  $phpfileContents = file_get_contents( $phpfile );
115 
116  if ( !isset( $messages ) ) {
117  $this->fatalError( "PHP file $phpfile does not define \$messages array" );
118  }
119 
120  if ( !$messages ) {
121  $this->fatalError( "PHP file $phpfile contains an empty \$messages array. " .
122  "Maybe it was already converted?" );
123  }
124 
125  if ( !isset( $messages['en'] ) || !is_array( $messages['en'] ) ) {
126  $this->fatalError( "PHP file $phpfile does not set language codes" );
127  }
128 
129  foreach ( $messages as $langcode => $langmsgs ) {
130  $authors = $this->getAuthorsFromComment( $this->findCommentBefore(
131  "\$messages['$langcode'] =",
132  $phpfileContents
133  ) );
134  // Make sure the @metadata key is the first key in the output
135  $langmsgs = array_merge(
136  [ '@metadata' => [ 'authors' => $authors ] ],
137  $langmsgs
138  );
139 
140  $jsonfile = "$jsondir/$langcode.json";
141  $success = file_put_contents(
142  $jsonfile,
143  FormatJson::encode( $langmsgs, "\t", FormatJson::ALL_OK ) . "\n"
144  );
145  if ( $success === false ) {
146  $this->fatalError( "FAILED to write $jsonfile" );
147  }
148  $this->output( "$jsonfile\n" );
149  }
150 
151  $this->output(
152  "All done. To complete the conversion, please do the following:\n" .
153  "* Add \$wgMessagesDirs['YourExtension'] = __DIR__ . '/i18n';\n" .
154  "* Remove \$wgExtensionMessagesFiles['YourExtension']\n" .
155  "* Delete the old PHP message file\n" .
156  "This script no longer generates backward compatibility shims! If you need\n" .
157  "compatibility with MediaWiki 1.22 and older, use the MediaWiki 1.23 version\n" .
158  "of this script instead, or create a shim manually.\n"
159  );
160  }
161 
168  protected function findCommentBefore( $needle, $haystack ) {
169  $needlePos = strpos( $haystack, $needle );
170  if ( $needlePos === false ) {
171  return '';
172  }
173  // Need to pass a negative offset to strrpos() so it'll search backwards from the
174  // offset
175  $startPos = strrpos( $haystack, '
188 
getArg( $argId=0, $default=null)
Get an argument.
maybeHelp( $force=false)
Maybe show the help.
$success
error( $err, $die=0)
Throw an error to the user.
$IP
Definition: WebStart.php:41
getOption( $name, $default=null)
Get an option, or return the default.
Abstract maintenance class for quickly writing and churning out maintenance scripts with minimal effo...
Definition: Maintenance.php:86
const ALL_OK
Skip escaping as many characters as reasonably possible.
Definition: FormatJson.php:55
static encode( $value, $pretty=false, $escaping=0)
Returns the JSON representation of a value.
Definition: FormatJson.php:115
hasOption( $name)
Checks to see if a particular option exists.
addDescription( $text)
Set the description text.
addArg( $arg, $description, $required=true)
Add some args that are needed.
getAuthorsFromComment( $comment)
Get an array of author names from a documentation comment containing.
output( $out, $channel=null)
Throw some output to the user.
Maintenance script to generate JSON i18n files from a PHP i18n file.
findCommentBefore( $needle, $haystack)
Find the documentation comment immediately before a given search string.
transformI18nFile( $phpfile, $jsondir=null)
addOption( $name, $description, $required=false, $withArg=false, $shortName=false, $multiOccurrence=false)
Add a parameter to the script.
fatalError( $msg, $exitCode=1)
Output a message and terminate the current script.