GridFieldBulkEditingTools/tasks/BuildTransifexTranslations.php

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<?php
/**
* Phing build task used to generate SilverStripe translation files
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* from Transifex data. This tasks assumes that:
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* - Javascript translations are from the Transifex resource called 'js'
* - YML translations are from the Transifex resource called 'yml'
* - Transifex AUTH credentials to be saved in $txAuthFile with content {"username": "user", "password": "pwd"}
*
* This is inspired by SilverStripe build tools. Thanks
* @see https://github.com/silverstripe/silverstripe-buildtools/blob/master/src/GenerateJavascriptI18nTask.php
*/
require_once "phing/Task.php";
class BuildTransifexTranslations extends Task
{
private $txapi = 'https://www.transifex.com/api/2';
private $txproject = '';
private $txAuthFile = 'transifexAuth.json';
private $txAuth = null;
private $root = '';
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private $jsDir = '/lang/js';
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private $ymlDir = '/lang';
public function settxapi($txapi)
{
$this->txapi = $txapi;
}
public function settxproject($txproject)
{
$this->txproject = $txproject;
}
/**
* Task init
*/
public function init()
{
$root = realpath(__DIR__ . DIRECTORY_SEPARATOR . '..');
$authFile = $root . DIRECTORY_SEPARATOR . $this->txAuthFile;
if ( file_exists($authFile) )
{
$txAuthData = file_get_contents($authFile);
$txAuthData = json_decode($txAuthData);
if ( $txAuthData->username && $txAuthData->password )
{
$this->txAuth = $txAuthData;
}
else{
throw new BuildException("Transifex credentials malformat. Check your $authFile for 'username' and 'password' keys.");
}
}
else{
throw new BuildException("Transifex credentials not found. $authFile missing.");
}
$this->root = $root;
$this->jsDir = $root . $this->jsDir;
$this->ymlDir = $root . $this->ymlDir;
}
/**
* Let's get to buisness...
*/
public function main()
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
curl_setopt($ch, CURLOPT_USERPWD, $this->txAuth->username . ":" . $this->txAuth->password);
// get resources
$url = $this->txapi.'/project/'.$this->txproject.'/resources/';
curl_setopt($ch, CURLOPT_URL, $url);
$resources = curl_exec($ch);
if ( !$resources )
{
throw new BuildException("Cannot fetch resources");
}
else{
$resources = json_decode($resources);
}
// get langs
$url = $this->txapi.'/project/'.$this->txproject.'/languages/';
curl_setopt($ch, CURLOPT_URL, $url);
$languages = curl_exec($ch);
if ( !$languages )
{
throw new BuildException("Cannot fetch languages");
}
else{
$languages = json_decode($languages);
}
// clear existing translation files and/or setup folders
$this->resetTranslations();
// add source_language_code to languages list
$sourceLangs = array();
foreach ($resources as $resource)
{
$lang = new StdClass();
$locale = $resource->source_language_code;
$lang->language_code = $locale;
if ( !array_key_exists($locale, $sourceLangs) )
{
$sourceLangs[$locale] = $lang;
}
}
$sourceLangs = array_values($sourceLangs);
$languages = array_merge($languages, $sourceLangs);
// get each resource translations
foreach ($resources as $resource)
{
foreach ($languages as $language)
{
$url = $this->txapi.'/project/'.$this->txproject.'/resource/'.$resource->slug.'/translation/'.$language->language_code;
curl_setopt($ch, CURLOPT_URL, $url);
$data = curl_exec($ch);
if ( $data )
{
$this->saveTranslation($resource->slug, $language->language_code, $data);
}
}
}
curl_close($ch);
}
/**
* Clear any existing translation files
* and create directory structure if needed
*/
private function resetTranslations()
{
if ( file_exists($this->jsDir) )
{
echo "Clearing js translations...\n";
$iterator = new GlobIterator($this->jsDir . DIRECTORY_SEPARATOR . '*.js');
foreach ($iterator as $fileInfo)
{
if ( $fileInfo->isFile() )
{
$del = unlink($fileInfo->getRealPath());
}
}
}
if ( file_exists($this->ymlDir) )
{
echo "Clearing yml translations...\n";
$iterator = new GlobIterator($this->ymlDir . DIRECTORY_SEPARATOR . '*.yml');
foreach ($iterator as $fileInfo)
{
if ( $fileInfo->isFile() )
{
$del = unlink($fileInfo->getRealPath());
}
}
}
if ( !file_exists($this->jsDir) )
{
echo "Creating js folders...\n";
mkdir($this->jsDir);
}
if ( !file_exists($this->ymlDir) )
{
echo "Creating yml folders...\n";
mkdir($this->ymlDir);
}
}
/**
* Hook that detect the translation type via resource slug
* and call corect saving function with data
* @param string $resource Transifex resrouce slug
* @param string $locale Transifex locale
* @param string $data Raw Transifex translation data
*/
private function saveTranslation($resource, $locale, $data)
{
if ( !$resource || !$locale || !$data )
{
return;
}
$data = json_decode($data);
$translation = rtrim($data->content);
switch ($resource)
{
case 'js':
$this->saveJSTranslation($locale, $translation);
break;
case 'yml':
$this->saveYMLTranslation($locale, $translation);
break;
}
}
/**
* Save a JS translation file
* Uses JSTemplate to fit with SilverStripe requirements
* @param string $locale Locale code
* @param string $json JSON translation key:value
*/
private function saveJSTranslation($locale, $json)
{
echo "Saving $locale.js\n";
file_put_contents(
$this->jsDir . DIRECTORY_SEPARATOR . $locale . '.js',
$this->getBanner('js') .
str_replace(
array(
'%TRANSLATIONS%',
'%LOCALE%'
),
array(
$json,
$locale
),
$this->getJSTemplate()
)
);
}
/**
* Save a YML translation file
* @param string $locale Locale code
* @param string $yml YML translation
*/
public function saveYMLTranslation($locale, $yml)
{
echo "Saving $locale.yml\n";
file_put_contents(
$this->ymlDir . DIRECTORY_SEPARATOR . $locale . '.yml',
$this->getBanner('yml') . $yml
);
}
/**
* Return the commented file banner
* @param string $type File type e.g js
* @return string The commented file banner
*/
private function getBanner($type)
{
switch ( strtolower($type) )
{
case 'yml':
$comment = "#";
break;
default:
$comment = "//";
break;
}
$banner = <<<TMPL
$comment DO NOT MODIFY. Generated by build task.
$comment Contribute here: https://www.transifex.com/projects/p/gridfieldbulkeditingtools/
TMPL;
return $banner;
}
/**
* Return the SilverStripe JS lang file template
* @return string The JS file template
*/
private function getJSTemplate()
{
$tmpl = <<<TMPL
if(typeof(ss) == 'undefined' || typeof(ss.i18n) == 'undefined') {
if(typeof(console) != 'undefined') console.error('Class ss.i18n not defined');
} else {
ss.i18n.addDictionary('%LOCALE%', %TRANSLATIONS%);
}
TMPL;
return $tmpl;
}
}