MediaWiki  1.28.0
generateJsonI18n.php
Go to the documentation of this file.
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->error( "The phpfile is already specified, conflicts with --extension.", 1 );
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 );
82  foreach ( $iterator as $path => $fileObject ) {
83  if ( fnmatch( "*.i18n.php", $fileObject->getFilename() ) ) {
84  $this->output( "Converting $path.\n" );
85  $this->transformI18nFile( $path );
86  }
87  }
88  } else {
89  // Just convert the primary i18n file.
90  $this->transformI18nFile( $phpfile, $jsondir );
91  }
92  }
93 
94  public function transformI18nFile( $phpfile, $jsondir = null ) {
95  if ( !$jsondir ) {
96  // Assume the json directory should be in the same directory as the
97  // .i18n.php file.
98  $jsondir = dirname( $phpfile ) . "/i18n";
99  }
100  if ( !is_dir( $jsondir ) ) {
101  $this->output( "Creating directory $jsondir.\n" );
102  $success = mkdir( $jsondir );
103  if ( !$success ) {
104  $this->error( "Could not create directory $jsondir", 1 );
105  }
106  }
107 
108  if ( !is_readable( $phpfile ) ) {
109  $this->error( "Error reading $phpfile", 1 );
110  }
111  include $phpfile;
112  $phpfileContents = file_get_contents( $phpfile );
113 
114  if ( !isset( $messages ) ) {
115  $this->error( "PHP file $phpfile does not define \$messages array", 1 );
116  }
117 
118  if ( !$messages ) {
119  $this->error( "PHP file $phpfile contains an empty \$messages array. " .
120  "Maybe it was already converted?", 1 );
121  }
122 
123  if ( !isset( $messages['en'] ) || !is_array( $messages['en'] ) ) {
124  $this->error( "PHP file $phpfile does not set language codes", 1 );
125  }
126 
127  foreach ( $messages as $langcode => $langmsgs ) {
128  $authors = $this->getAuthorsFromComment( $this->findCommentBefore(
129  "\$messages['$langcode'] =",
130  $phpfileContents
131  ) );
132  // Make sure the @metadata key is the first key in the output
133  $langmsgs = array_merge(
134  [ '@metadata' => [ 'authors' => $authors ] ],
135  $langmsgs
136  );
137 
138  $jsonfile = "$jsondir/$langcode.json";
139  $success = file_put_contents(
140  $jsonfile,
141  FormatJson::encode( $langmsgs, "\t", FormatJson::ALL_OK ) . "\n"
142  );
143  if ( $success === false ) {
144  $this->error( "FAILED to write $jsonfile", 1 );
145  }
146  $this->output( "$jsonfile\n" );
147  }
148 
149  $this->output(
150  "All done. To complete the conversion, please do the following:\n" .
151  "* Add \$wgMessagesDirs['YourExtension'] = __DIR__ . '/i18n';\n" .
152  "* Remove \$wgExtensionMessagesFiles['YourExtension']\n" .
153  "* Delete the old PHP message file\n" .
154  "This script no longer generates backward compatibility shims! If you need\n" .
155  "compatibility with MediaWiki 1.22 and older, use the MediaWiki 1.23 version\n" .
156  "of this script instead, or create a shim manually.\n"
157  );
158  }
159 
166  protected function findCommentBefore( $needle, $haystack ) {
167  $needlePos = strpos( $haystack, $needle );
168  if ( $needlePos === false ) {
169  return '';
170  }
171  // Need to pass a negative offset to strrpos() so it'll search backwards from the
172  // offset
173  $startPos = strrpos( $haystack, '
186 
$success
transformI18nFile($phpfile, $jsondir=null)
$IP
Definition: WebStart.php:58
addArg($arg, $description, $required=true)
Add some args that are needed.
Abstract maintenance class for quickly writing and churning out maintenance scripts with minimal effo...
Definition: maintenance.txt:39
const ALL_OK
Skip escaping as many characters as reasonably possible.
Definition: FormatJson.php:55
hasOption($name)
Checks to see if a particular param exists.
findCommentBefore($needle, $haystack)
Find the documentation comment immediately before a given search string.
when a variable name is used in a it is silently declared as a new local masking the global
Definition: design.txt:93
addOption($name, $description, $required=false, $withArg=false, $shortName=false, $multiOccurrence=false)
Add a parameter to the script.
static encode($value, $pretty=false, $escaping=0)
Returns the JSON representation of a value.
Definition: FormatJson.php:127
addDescription($text)
Set the description text.
This document is intended to provide useful advice for parties seeking to redistribute MediaWiki to end users It s targeted particularly at maintainers for Linux since it s been observed that distribution packages of MediaWiki often break We ve consistently had to recommend that users seeking support use official tarballs instead of their distribution s and this often solves whatever problem the user is having It would be nice if this could such as
Definition: distributors.txt:9
getOption($name, $default=null)
Get an option, or return the default.
output($out, $channel=null)
Throw some output to the user.
Maintenance script to generate JSON i18n files from a PHP i18n file.
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition: injection.txt:35
maybeHelp($force=false)
Maybe show the help.
error($err, $die=0)
Throw an error to the user.
$messages
getArg($argId=0, $default=null)
Get an argument.
getAuthorsFromComment($comment)
Get an array of author names from a documentation comment containing.