Fix the "default arch" code path with Julia nightly (and add a CI job for that code path) (#115)

lib/installer.js

@@ -32,11 +32,8 @@ const osMap = {
 };
 const archMap = {
     'x86': 'i686',
-    'X86': 'i686',
     'x64': 'x86_64',
-    'X64': 'x86_64',
-    'aarch64': 'aarch64',
-    'ARM64': 'aarch64'
+    'aarch64': 'aarch64'
 };
 // Store information about the environment
 const osPlat = os.platform(); // possible values: win32 (Windows), linux (Linux), darwin (macOS)

lib/setup-julia.js

@@ -21,6 +21,14 @@ const fs = __importStar(require("fs"));
 const https = __importStar(require("https"));
 const path = __importStar(require("path"));
 const installer = __importStar(require("./installer"));
+const archSynonyms = {
+    'x86': 'x86',
+    'X86': 'x86',
+    'x64': 'x64',
+    'X64': 'x64',
+    'aarch64': 'aarch64',
+    'ARM64': 'aarch64'
+};
 function run() {
     return __awaiter(this, void 0, void 0, function* () {
         try {
@@ -41,7 +49,7 @@ function run() {
             }
             // Inputs
             const versionInput = core.getInput('version');
-            const arch = core.getInput('arch');
+            const originalArchInput = core.getInput('arch');
             // It can easily happen that, for example, a workflow file contains an input `version: ${{ matrix.julia-version }}`
             // while the strategy matrix only contains a key `${{ matrix.version }}`.
             // In that case, we want the action to fail, rather than trying to download julia from an URL that's missing parts and 404ing.
@@ -50,9 +58,10 @@ function run() {
             if (!versionInput) {
                 throw new Error('Version input must not be null');
             }
-            if (!arch) {
+            if (!originalArchInput) {
                 throw new Error(`Arch input must not be null`);
             }
+            const arch = archSynonyms[originalArchInput];
             const versionInfo = yield installer.getJuliaVersionInfo();
             const availableReleases = yield installer.getJuliaVersions(versionInfo);
             const version = installer.getJuliaVersion(availableReleases, versionInput);