Made empty translations fuzzy

Author: rimi-itk

src/Command/TranslationExtractCommand.php

@@ -248,6 +248,7 @@ protected function execute(InputInterface $input, OutputInterface $output): int
                 'xliff_version' => $xliffVersion,
                 'as_tree' => $input->getOption('as-tree'),
                 'inline' => $input->getOption('as-tree') ?? 0,
+                'empty_prefix' => $input->getOption('prefix'),
             ];
 
             $this->writer->write($operationResult, $format, $dumperOptions);

src/Translation/Dumper/PoFileDumper.php

@@ -39,6 +39,8 @@ public function formatCatalogue(
             $header->setProjectName($projectName);
         }
 
+        $emptyPrefix = $options['empty_prefix'] ?? null;
+
         $uri = tempnam(sys_get_temp_dir(), 'po_');
         $writer = new PoStreamWriter();
         $writer->setURI($uri);
@@ -47,6 +49,9 @@ public function formatCatalogue(
         foreach ($messages->getDomains() as $domain) {
             foreach ($messages->all($domain) as $source => $translation) {
                 $item = new PoItem();
+                if (empty($translation) || ($emptyPrefix && str_starts_with($translation, $emptyPrefix))) {
+                    $item->setFuzzy();
+                }
                 $item->setContext(PoItem::formatContext($domain));
                 $source = PoItem::splitStrings($source);
                 $translation = PoItem::splitStrings($translation, $numberOfPlurals);

src/Translation/Dumper/PoItem.php

@@ -6,6 +6,27 @@ class PoItem extends \Drupal\Component\Gettext\PoItem
 {
     public const string NO_CONTEXT = '__no_context__';
 
+    private bool $fuzzy = false;
+
+    public function setFuzzy(bool $fuzzy = true): self
+    {
+        $this->fuzzy = $fuzzy;
+
+        return $this;
+    }
+
+    public function __toString()
+    {
+        $string = parent::__toString();
+
+        if ($this->fuzzy) {
+            // https://www.gnu.org/savannah-checkouts/gnu/gettext/manual/gettext.html#Fuzzy-Entries
+            $string = '#, fuzzy'."\n".$string;
+        }
+
+        return $string;
+    }
+
     public static function joinStrings(array $strings, string $prefix = ''): string
     {
         return implode(self::DELIMITER, array_map(fn (string $string) => $prefix.$string, $strings));

tests/Unit/Extractor/PoFileDumperTest.php

@@ -64,6 +64,7 @@ public function testFormatCatalogDaWithPrefix(): void
         $dumper = new PoFileDumper();
         $output = $dumper->formatCatalogue($messages, '', [
             'project_name' => 'testFormatCatalog',
+            'empty_prefix' => '__',
         ]);
 
         $strings = [
@@ -78,6 +79,13 @@ public function testFormatCatalogDaWithPrefix(): void
                 'msgstr[0] "__Hello star."',
                 'msgstr[1] "__Hello @count stars."',
             ]),
+
+            $this->block([
+                '#, fuzzy',
+                'msgctxt "the context"',
+                'msgid "t filter with options context"',
+                'msgstr "__t filter with options context"',
+            ]),
         ];
         foreach ($strings as $string) {
             $this->assertStringContainsString($string, $output);