Add alt for re2c

config/source.json

@@ -1122,6 +1122,10 @@
         "repo": "skvadrik/re2c",
         "match": "re2c.+\\.tar\\.xz",
         "prefer-stable": true,
+        "alt": {
+            "type": "url",
+            "url": "https://dl.static-php.dev/static-php-cli/deps/re2c/re2c-4.3.tar.xz"
+        },
         "license": {
             "type": "file",
             "path": "LICENSE"

src/SPC/doctor/item/Re2cVersionCheck.php

@@ -9,6 +9,8 @@ use SPC\builder\traits\UnixSystemUtilTrait;
 use SPC\doctor\AsCheckItem;
 use SPC\doctor\AsFixItem;
 use SPC\doctor\CheckResult;
+use SPC\exception\DownloaderException;
+use SPC\store\Config;
 use SPC\store\Downloader;
 use Symfony\Component\Console\Input\ArgvInput;
 
@@ -35,7 +37,14 @@ class Re2cVersionCheck
     #[AsFixItem('build-re2c')]
     public function buildRe2c(): bool
     {
-        Downloader::downloadSource('re2c');
+        try {
+            Downloader::downloadSource('re2c');
+        } catch (DownloaderException) {
+            logger()->warning('Failed to download re2c version, trying alternative');
+            $alt = Config::getSource('re2c');
+            $alt = [...$alt, ...$alt['alt'] ?? []];
+            Downloader::downloadSource('re2c', $alt);
+        }
         $builder = BuilderProvider::makeBuilderByInput(new ArgvInput([]));
         $builder->proveLibs(['re2c']);
         $builder->setupLibs();