fix: normalize filename and try to find a match

CHANGELOG.md

@@ -5,6 +5,28 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## 0.3.3 - 2022-01-14
+
+### Added
+
+- Nothing.
+
+### Changed
+
+- Nothing.
+
+### Deprecated
+
+- Nothing.
+
+### Removed
+
+- Nothing.
+
+### Fixed
+
+- Normalize the locale file name before searching for it in `MessageLoader`, to account for differences in case, as well as filesystem case sensitivity (e.g. "en-XB" vs. "en_xb")
+
 ## 0.3.2 - 2021-12-17
 
 ### Added

src/Extractor/Parser/Descriptor/DescriptorCollectorVisitor.php

@@ -49,12 +49,13 @@
  */
 class DescriptorCollectorVisitor extends NodeVisitorAbstract
 {
+    public ParserErrorCollection $errors;
+
     private DescriptorCollection $descriptors;
     private string $filePath;
     private bool $preserveWhitespace;
     private IdInterpolator $idInterpolator;
     private string $idInterpolatorPattern;
-    private ParserErrorCollection $errors;
     private bool $addGeneratedIdsToSourceCode;
 
     /**

src/Extractor/Parser/Descriptor/PragmaCollectorVisitor.php

@@ -44,14 +44,15 @@
  */
 class PragmaCollectorVisitor extends NodeVisitorAbstract
 {
+    public ParserErrorCollection $errors;
+
     /**
      * @var array<string, string>
      */
     private array $parsedPragma = [];
 
     private string $filePath;
     private ?string $pragmaName;
-    private ParserErrorCollection $errors;
 
     public function __construct(string $filePath, string $pragmaName, ParserErrorCollection $errors)
     {
@@ -132,6 +133,11 @@ private function parseMetadata(string $metadata): void
 
         preg_match_all('/(([a-z0-9_\-]+):([a-z0-9_\-]+))+/i', $metadata, $matches);
 
+        /**
+         * @psalm-suppress UnnecessaryVarAnnotation
+         * @var int $index
+         * @var string $propertyName
+         */
         foreach ($matches[2] as $index => $propertyName) {
             $compareParsed .= preg_replace('/\s+/', '', strtolower("$propertyName:{$matches[3][$index]}"));
             $this->parsedPragma[$propertyName] = $matches[3][$index];

src/FormatPHP.php

@@ -79,7 +79,7 @@ public function formatMessage(array $descriptor, array $values = []): string
         } catch (UnableToGenerateMessageIdException $exception) {
             throw new InvalidArgumentException(
                 'The message descriptor must have an ID or default message',
-                is_int($exception->getCode()) ? $exception->getCode() : 0,
+                is_int($exception->getCode()) ? $exception->getCode() : 0, // @phpstan-ignore-line
                 $exception,
             );
         }

src/Icu/MessageFormat/Parser/DateTimeSkeletonParser.php

@@ -118,7 +118,7 @@ private function setOption(string $skeletonOption, DateTimeFormatOptions $option
                         '"e..eee" (weekday) patterns are not supported',
                     );
                 }
-                $options->weekday = ['short', 'long', 'narrow', 'short'][$length - 4];
+                $options->weekday = $this->getWeekdayValue($length - 4);
 
                 break;
             case 'c':
@@ -127,7 +127,7 @@ private function setOption(string $skeletonOption, DateTimeFormatOptions $option
                         '"c..ccc" (weekday) patterns are not supported',
                     );
                 }
-                $options->weekday = ['short', 'long', 'narrow', 'short'][$length - 4];
+                $options->weekday = $this->getWeekdayValue($length - 4);
 
                 break;
             // Period
@@ -202,4 +202,28 @@ private function setOption(string $skeletonOption, DateTimeFormatOptions $option
                 );
         }
     }
+
+    /**
+     * @psalm-return "long" | "narrow" | "short"
+     */
+    private function getWeekdayValue(int $index): string
+    {
+        switch ($index) {
+            case 1:
+                $value = 'long';
+
+                break;
+            case 2:
+                $value = 'narrow';
+
+                break;
+            case 0:
+            default:
+                $value = 'short';
+
+                break;
+        }
+
+        return $value;
+    }
 }

src/MessageLoader.php

@@ -35,11 +35,16 @@
 use function array_filter;
 use function array_unique;
 use function array_values;
+use function file_exists;
 use function implode;
 use function is_callable;
+use function scandir;
 use function sprintf;
+use function str_replace;
+use function strtolower;
 
 use const DIRECTORY_SEPARATOR;
+use const SCANDIR_SORT_NONE;
 
 /**
  * Loads messages for a given locale from the file system or cache
@@ -48,6 +53,8 @@
  */
 class MessageLoader
 {
+    private const MESSAGE_FILE_EXTENSION = '.json';
+
     private ConfigInterface $config;
     private FileSystemHelper $fileSystemHelper;
     private FormatHelper $formatHelper;
@@ -108,8 +115,9 @@ private function getLocaleMessages(): array
 
         foreach ($this->getFallbackLocales() as $locale) {
             try {
-                $messagesFile = $this->messagesDirectory . DIRECTORY_SEPARATOR . $locale . '.json';
-                $messagesContents = $this->fileSystemHelper->getJsonContents($messagesFile);
+                $messagesContents = $this->fileSystemHelper->getJsonContents(
+                    $this->getFilePathForLocale($locale),
+                );
 
                 break;
             } catch (UnableToProcessFileException $exception) {
@@ -119,8 +127,9 @@ private function getLocaleMessages(): array
 
         if ($messagesContents === false) {
             throw new LocaleNotFoundException(sprintf(
-                'Unable to find a suitable locale for "%s"; please set a default locale',
+                'Unable to find a suitable locale for "%s" in %s; please set a default locale',
                 $this->config->getLocale()->toString(),
+                $this->messagesDirectory,
             ));
         }
 
@@ -171,4 +180,30 @@ private function loadFormatReader($formatReader): callable
 
         return $this->formatHelper->getReader($formatReader);
     }
+
+    private function getFilePathForLocale(string $locale): string
+    {
+        $filePath = $this->messagesDirectory . DIRECTORY_SEPARATOR . $locale . self::MESSAGE_FILE_EXTENSION;
+        if (file_exists($filePath)) {
+            return $filePath;
+        }
+
+        // If the file doesn't exist, check for alternate casings and notations.
+        // e.g., en-XB, en_XB, en-xb, en_xb, EN-XB, EN_XB, eN-xB, etc.
+        $normalize = fn (string $filename): string => str_replace('_', '-', strtolower($filename));
+        $searchFile = $normalize($locale . self::MESSAGE_FILE_EXTENSION);
+        $localeFiles = scandir($this->messagesDirectory, SCANDIR_SORT_NONE) ?: [];
+
+        foreach ($localeFiles as $localeFile) {
+            if ($normalize($localeFile) === $searchFile) {
+                return $this->messagesDirectory . DIRECTORY_SEPARATOR . $localeFile;
+            }
+        }
+
+        throw new UnableToProcessFileException(sprintf(
+            'Could not find file for locale "%s" in %s',
+            $locale,
+            $this->messagesDirectory,
+        ));
+    }
 }

tests/MessageLoaderTest.php

@@ -44,17 +44,22 @@ public function testExceptionWhenUnableToFindSuitableLocale(): void
         // Esperanto, Latin script, US region.
         $locale = new Locale('eo-Latn-US');
 
+        $messagesDirectory = __DIR__ . '/fixtures/locales';
+
         /** @var ReaderInterface $reader */
         $reader = $this->mockery(ReaderInterface::class);
 
         $loader = new MessageLoader(
-            __DIR__ . '/fixtures/locales',
+            $messagesDirectory,
             new Config($locale),
             $reader,
         );
 
         $this->expectException(LocaleNotFoundException::class);
-        $this->expectExceptionMessage('Unable to find a suitable locale for "eo-Latn-US"; please set a default locale');
+        $this->expectExceptionMessage(
+            'Unable to find a suitable locale for "eo-Latn-US" in ' . $messagesDirectory
+            . '; please set a default locale',
+        );
 
         $loader->loadMessages();
     }
@@ -144,4 +149,26 @@ public function provideCustomReader(): array
             ['customReader' => null],
         ];
     }
+
+    public function testLoadMessagesNormalizesFilenames(): void
+    {
+        $locale = new Locale('en-XB');
+        $defaultLocale = new Locale('en');
+
+        $loader = new MessageLoader(
+            __DIR__ . '/fixtures/locales',
+            new Config($locale, $defaultLocale),
+            new FormatPHPReader(),
+        );
+
+        $collection = $loader->loadMessages();
+
+        $this->assertGreaterThanOrEqual(1, $collection->count());
+        $this->assertNotNull($collection['about.inspire']);
+        $this->assertInstanceOf(MessageInterface::class, $collection['about.inspire']);
+        $this->assertSame(
+            '[!! Ḁṭ Ṡǩíííĺĺśśśḫâŕŕŕè, ẘè èṁṗṗṗŏẘèèèŕ ṁṁṁèṁḃḃḃèŕśśś ṭŏŏŏ ĝèèèṭ íííńśṗṗṗíŕèèèḋ. !!]',
+            $collection['about.inspire']->getMessage(),
+        );
+    }
 }

tests/fixtures/locales/en_xb.json

@@ -0,0 +1,14 @@
+{
+    "about.inspire": {
+        "defaultMessage": "[!! Ḁṭ Ṡǩíííĺĺśśśḫâŕŕŕè, ẘè èṁṗṗṗŏẘèèèŕ ṁṁṁèṁḃḃḃèŕśśś ṭŏŏŏ ĝèèèṭ íííńśṗṗṗíŕèèèḋ. !!]"
+    },
+    "how.many.pets": {
+        "defaultMessage": "[!! Ļâśśśṭ ṭṭṭíṁèèè Ḭ ćḫèèèćǩèèèḋ,  !!]{gender, select, male{<italicized>[!! ḫè !!]</italicized>[!!  ḫâââḋ !!]} female{<italicized>[!! śḫèèè !!]</italicized>[!!  ḫâââḋ !!]} other{<italicized>[!! ṭḫèèèẏ !!]</italicized>[!!  ḫâââḋ !!]}}[!!   !!]{petCount, plural, =0{<bold>[!! ńŏ !!]</bold>[!!  ṗèèèṭś !!]} =1{<bold>[!! â !!]</bold>[!!  ṗèèèṭ !!]} other{<bold>#</bold>[!!  ṗèèèṭś !!]}}[!! . !!]"
+    },
+    "start.with.tag": {
+        "defaultMessage": "<foo>{argument}</foo>"
+    },
+    "start.with.argument": {
+        "defaultMessage": "{argument}"
+    }
+}