MediaWiki  1.33.0
CopyFileBackend Class Reference

Copy all files in one container of one backend to another. More...

Inheritance diagram for CopyFileBackend:
Collaboration diagram for CopyFileBackend:

Public Member Functions

 __construct ()
 Default constructor. More...
 execute ()
 Do the actual work. More...
- Public Member Functions inherited from Maintenance
 checkRequiredExtensions ()
 Verify that the required extensions are installed. More...
 cleanupChanneled ()
 Clean up channeled output. More...
 clearParamsAndArgs ()
 Clear all params and arguments. More...
 finalSetup ()
 Handle some last-minute setup here. More...
 getConfig ()
 getDbType ()
 Does the script need different DB access? By default, we give Maintenance scripts normal rights to the DB. More...
 getName ()
 Get the script's name. More...
 globals ()
 Potentially debug globals. More...
 isQuiet ()
 loadParamsAndArgs ( $self=null, $opts=null, $args=null)
 Process command line arguments $mOptions becomes an array with keys set to the option names $mArgs becomes a zero-based array containing the non-option arguments. More...
 loadSettings ()
 Generic setup for most installs. More...
 loadWithArgv ( $argv)
 Load params and arguments from a given array of command-line arguments. More...
 memoryLimit ()
 Normally we disable the memory_limit when running admin scripts. More...
 outputChanneled ( $msg, $channel=null)
 Message outputter with channeled message support. More...
 purgeRedundantText ( $delete=true)
 Support function for cleaning up redundant text records. More...
 runChild ( $maintClass, $classFile=null)
 Run a child maintenance script. More...
 setAgentAndTriggers ()
 Set triggers like when to try to run deferred updates. More...
 setConfig (Config $config)
 setDB (IDatabase $db)
 Sets database object to be returned by getDB(). More...
 setup ()
 Do some sanity checking and basic setup. More...
 updateSearchIndex ( $maxLockTime, $callback, $dbw, $results)
 Perform a search index update with locking. More...
 updateSearchIndexForPage ( $dbw, $pageId)
 Update the searchindex table for a given pageid. More...
 validateParamsAndArgs ()
 Run some validation checks on the params, etc. More...

Protected Member Functions

 copyFileBatch (array $srcPathsRel, $backendRel, FileBackend $src, FileBackend $dst)
 delFileBatch (array $dstPathsRel, $backendRel, FileBackend $dst)
 filesAreSame (FileBackend $src, FileBackend $dst, $sPath, $dPath)
 getListingDiffRel (FileBackend $src, FileBackend $dst, $backendRel)
- Protected Member Functions inherited from Maintenance
 activateProfiler ()
 Activate the profiler (assuming $wgProfiler is set) More...
 addArg ( $arg, $description, $required=true)
 Add some args that are needed. More...
 addDefaultParams ()
 Add the default parameters to the scripts. More...
 addDescription ( $text)
 Set the description text. More...
 addOption ( $name, $description, $required=false, $withArg=false, $shortName=false, $multiOccurrence=false)
 Add a parameter to the script. More...
 adjustMemoryLimit ()
 Adjusts PHP's memory limit to better suit our needs, if needed. More...
 afterFinalSetup ()
 Execute a callback function at the end of initialisation. More...
 beginTransaction (IDatabase $dbw, $fname)
 Begin a transcation on a DB. More...
 commitTransaction (IDatabase $dbw, $fname)
 Commit the transcation on a DB handle and wait for replica DBs to catch up. More...
 countDown ( $seconds)
 Count down from $seconds to zero on the terminal, with a one-second pause between showing each number. More...
 deleteOption ( $name)
 Remove an option. More...
 error ( $err, $die=0)
 Throw an error to the user. More...
 fatalError ( $msg, $exitCode=1)
 Output a message and terminate the current script. More...
 getArg ( $argId=0, $default=null)
 Get an argument. More...
 getBatchSize ()
 Returns batch size. More...
 getDB ( $db, $groups=[], $wiki=false)
 Returns a database to be used by current maintenance script. More...
 getDir ()
 Get the maintenance directory. More...
 getOption ( $name, $default=null)
 Get an option, or return the default. More...
 getStdin ( $len=null)
 Return input from stdin. More...
 hasArg ( $argId=0)
 Does a given argument exist? More...
 hasOption ( $name)
 Checks to see if a particular option exists. More...
 loadSpecialVars ()
 Handle the special variables that are global to all scripts. More...
 maybeHelp ( $force=false)
 Maybe show the help. More...
 output ( $out, $channel=null)
 Throw some output to the user. More...
 requireExtension ( $name)
 Indicate that the specified extension must be loaded before the script can run. More...
 rollbackTransaction (IDatabase $dbw, $fname)
 Rollback the transcation on a DB handle. More...
 setAllowUnregisteredOptions ( $allow)
 Sets whether to allow unregistered options, which are options passed to a script that do not match an expected parameter. More...
 setBatchSize ( $s=0)
 Set the batch size. More...
 supportsOption ( $name)
 Checks to see if a particular option in supported. More...

Protected Attributes

array null $statCache = null
 (path sha1 => stat) Pre-computed dst stat entries from listings More...
- Protected Attributes inherited from Maintenance
 $mAllowUnregisteredOptions = false
 $mArgList = []
 $mArgs = []
int $mBatchSize = null
 Batch size. More...
 $mDescription = ''
 $mInputLoaded = false
 $mOptions = []
 $mParams = []
 $mQuiet = false
 $mShortParamsMap = []

Additional Inherited Members

- Static Public Member Functions inherited from Maintenance
static getTermSize ()
 Get the terminal size as a two-element array where the first element is the width (number of columns) and the second element is the height (number of rows). More...
static posix_isatty ( $fd)
 Wrapper for posix_isatty() We default as considering stdin a tty (for nice readline methods) but treating stout as not a tty to avoid color codes. More...
static readconsole ( $prompt='> ')
 Prompt the console for input. More...
static requireTestsAutoloader ()
 Call this to set up the autoloader to allow classes to be used from the tests directory. More...
static setLBFactoryTriggers (LBFactory $LBFactory, Config $config)
static shouldExecute ()
 Should we execute the maintenance script, or just allow it to be included as a standalone class? It checks that the call stack only includes this function and "requires" (meaning was called from the file scope) More...
- Public Attributes inherited from Maintenance
resource $fileHandle
 Used when creating separate schema files. More...
array $orderedOptions = []
 Used to read the options in the order they were passed. More...
const DB_ADMIN = 2
const DB_NONE = 0
 Constants for DB access type. More...
const DB_STD = 1
const STDIN_ALL = 'all'

Detailed Description

Copy all files in one container of one backend to another.

This can also be used to re-shard the files for one backend using the config of second backend. The second backend should have the same config as the first, except for it having a different name and different sharding configuration. The backend should be made read-only while this runs. After this script finishes, the old files in the containers can be deleted.

Definition at line 37 of file copyFileBackend.php.

Constructor & Destructor Documentation

◆ __construct()

CopyFileBackend::__construct ( )

Default constructor.

Children should call this first if implementing their own constructors

Reimplemented from Maintenance.

Definition at line 41 of file copyFileBackend.php.

References Maintenance\addDescription(), Maintenance\addOption(), and Maintenance\setBatchSize().

Member Function Documentation

◆ copyFileBatch()

◆ delFileBatch()

CopyFileBackend::delFileBatch ( array  $dstPathsRel,
FileBackend  $dst 

Definition at line 296 of file copyFileBackend.php.

References as, captcha-old\count, FileBackend\doQuickOperations(), Maintenance\error(), Maintenance\fatalError(), FileBackend\getRootStoragePath(), FileBackend\getWikiId(), Maintenance\output(), and true.

Referenced by execute().

◆ execute()

CopyFileBackend::execute ( )

Do the actual work.

All child classes will need to implement this

bool|null|void True for success, false for failure. Not returning a value, or returning null, is also interpreted as success. Returning false for failure will cause doMaintenance.php to exit the process with a non-zero exit status.

Reimplemented from Maintenance.

Definition at line 57 of file copyFileBackend.php.

References $path, as, copyFileBatch(), captcha-old\count, delFileBatch(), Maintenance\fatalError(), Maintenance\getBatchSize(), getListingDiffRel(), Maintenance\getOption(), Maintenance\hasOption(), Maintenance\output(), Maintenance\setBatchSize(), and FileBackendGroup\singleton().

◆ filesAreSame()

CopyFileBackend::filesAreSame ( FileBackend  $src,
FileBackend  $dst,

Definition at line 334 of file copyFileBackend.php.

References FileBackend\getFileSha1Base36(), FileBackend\getFileStat(), and Maintenance\hasOption().

Referenced by copyFileBatch().

◆ getListingDiffRel()

CopyFileBackend::getListingDiffRel ( FileBackend  $src,
FileBackend  $dst,
string[] (rel paths in $src minus those in $dst)

Definition at line 173 of file copyFileBackend.php.

References as, Maintenance\fatalError(), FileBackend\getFileList(), and FileBackend\getRootStoragePath().

Referenced by execute().

Member Data Documentation

◆ $statCache

array null CopyFileBackend::$statCache = null

(path sha1 => stat) Pre-computed dst stat entries from listings

Definition at line 39 of file copyFileBackend.php.

The documentation for this class was generated from the following file: