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ExecutableFinder.php
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1 <?php
22 
29 
37  protected static function getPossibleBinPaths() {
38  return array_unique( array_merge(
39  [ '/usr/bin', '/bin', '/usr/local/bin', '/opt/csw/bin',
40  '/usr/gnu/bin', '/usr/sfw/bin', '/sw/bin', '/opt/local/bin' ],
41  explode( PATH_SEPARATOR, getenv( 'PATH' ) )
42  ) );
43  }
44 
62  protected static function findExecutable( $path, $name, $versionInfo = false ) {
63  $command = $path . DIRECTORY_SEPARATOR . $name;
64 
65  Wikimedia\suppressWarnings();
66  $file_exists = is_executable( $command );
67  Wikimedia\restoreWarnings();
68 
69  if ( $file_exists ) {
70  if ( !$versionInfo ) {
71  return $command;
72  }
73 
74  $output = Shell::command( $command, $versionInfo[0] )
75  ->includeStderr()->execute()->getStdout();
76  if ( strstr( $output, $versionInfo[1] ) !== false ) {
77  return $command;
78  }
79  }
80 
81  return false;
82  }
83 
96  public static function findInDefaultPaths( $names, $versionInfo = false ) {
97  if ( Shell::isDisabled() ) {
98  // If we can't shell out, there's no point looking for executables
99  return false;
100  }
101 
102  $paths = self::getPossibleBinPaths();
103  foreach ( (array)$names as $name ) {
104  foreach ( $paths as $path ) {
105  $exe = self::findExecutable( $path, $name, $versionInfo );
106  if ( $exe !== false ) {
107  return $exe;
108  }
109  }
110  }
111 
112  return false;
113  }
114 
115 }
The wiki should then use memcached to cache various data To use multiple just add more items to the array To increase the weight of a make its entry a array("192.168.0.1:11211", 2))
static getPossibleBinPaths()
Get an array of likely places we can find executables.
Apache License January AND DISTRIBUTION Definitions License shall mean the terms and conditions for use
$command
Definition: cdb.php:65
static configuration should be added through ResourceLoaderGetConfigVars instead can be used to get the real title e g db for database replication lag or jobqueue for job queue size converted to pseudo seconds It is possible to add more fields and they will be returned to the user in the API response after the basic globals have been set but before ordinary actions take place $output
Definition: hooks.txt:2217
static findExecutable( $path, $name, $versionInfo=false)
Search a path for any of the given executable names.
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
static findInDefaultPaths( $names, $versionInfo=false)
Same as locateExecutable(), but checks in getPossibleBinPaths() by default.
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
Allows to change the fields on the form that will be generated $name
Definition: hooks.txt:271