public function execute()
{
$this->dataDir = $this->getOption('data-dir', '.');
$allkeysPresent = file_exists("{$this->dataDir}/allkeys.txt");
$ucdallPresent = file_exists("{$this->dataDir}/ucd.all.grouped.xml");
// As of January 2013, these links work for all versions of Unicode
// between 5.1 and 6.2, inclusive.
$allkeysURL = "http://www.unicode.org/Public/UCA/<Unicode version>/allkeys.txt";
$ucdallURL = "http://www.unicode.org/Public/<Unicode version>/ucdxml/ucd.all.grouped.zip";
if (!$allkeysPresent || !$ucdallPresent) {
$icuVersion = IcuCollation::getICUVersion();
$unicodeVersion = IcuCollation::getUnicodeVersionForICU();
$error = "";
if (!$allkeysPresent) {
$error .= "Unable to find allkeys.txt. " . "Download it and specify its location with --data-dir=<DIR>. " . "\n\n";
}
if (!$ucdallPresent) {
$error .= "Unable to find ucd.all.grouped.xml. " . "Download it, unzip, and specify its location with --data-dir=<DIR>. " . "\n\n";
}
$versionKnown = false;
if (!$icuVersion) {
// Unknown version - either very old intl,
// or PHP < 5.3.7 which does not expose this information
$error .= "As MediaWiki could not determine the version of ICU library used by your PHP's " . "intl extension it can't suggest which file version to download. " . "This can be caused by running a very old version of intl or PHP < 5.3.7. " . "If you are sure everything is all right, find out the ICU version " . "by running phpinfo(), check what is the Unicode version it is using " . "at http://site.icu-project.org/download, then try finding appropriate data file(s) at:";
} elseif (version_compare($icuVersion, "4.0", "<")) {
// Extra old version
$error .= "You are using outdated version of ICU ({$icuVersion}), intended for " . ($unicodeVersion ? "Unicode {$unicodeVersion}" : "an unknown version of Unicode") . "; this file might not be avalaible for it, and it's not supported by MediaWiki. " . " You are on your own; consider upgrading PHP's intl extension or try " . "one of the files available at:";
} elseif (version_compare($icuVersion, "51.0", ">=")) {
// Extra recent version
$error .= "You are using ICU {$icuVersion}, released after this script was last updated. " . "Check what is the Unicode version it is using at http://site.icu-project.org/download . " . "It can't be guaranteed everything will work, but appropriate file(s) should " . "be available at:";
} else {
// ICU 4.0 to 50.x
$versionKnown = true;
$error .= "You are using ICU {$icuVersion}, intended for " . ($unicodeVersion ? "Unicode {$unicodeVersion}" : "an unknown version of Unicode") . ". Appropriate file(s) should be available at:";
}
$error .= "\n";
if ($versionKnown && $unicodeVersion) {
$allkeysURL = str_replace("<Unicode version>", "{$unicodeVersion}.0", $allkeysURL);
$ucdallURL = str_replace("<Unicode version>", "{$unicodeVersion}.0", $ucdallURL);
}
if (!$allkeysPresent) {
$error .= "* {$allkeysURL}\n";
}
if (!$ucdallPresent) {
$error .= "* {$ucdallURL}\n";
}
$this->error($error);
exit(1);
}
$debugOutFileName = $this->getOption('debug-output');
if ($debugOutFileName) {
$this->debugOutFile = fopen($debugOutFileName, 'w');
if (!$this->debugOutFile) {
$this->error("Unable to open debug output file for writing");
exit(1);
}
}
$this->loadUcd();
$this->generateFirstChars();
}
