Add production dependencies & build

* On macOS, first try to find a tarball (`.tar.gz`) file, but fall back to `.dmg` if we can't find a tarball

* Add an "Example builds" job for Julia 1.2

.github/dependabot.yml

@@ -0,0 +1,7 @@
+version: 2
+updates:
+- package-ecosystem: gitsubmodule
+  directory: "/"
+  schedule:
+    interval: daily
+  open-pull-requests-limit: 10

.github/workflows/backup.yml

@@ -9,6 +9,7 @@ on:
 jobs:
   backup:
     runs-on: ubuntu-20.04
+    timeout-minutes: 60
 
     steps:
       - name: Configure cache

.github/workflows/checkin.yml

@@ -1,14 +1,21 @@
 name: "PR Checks"
 on: [pull_request, push]
 
+concurrency:
+  # Skip intermediate builds: all builds except for builds on the `master`, `main`, or `release-*` branches
+  # Cancel intermediate builds: only pull request builds
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref != 'refs/heads/master' || github.ref != 'refs/heads/main' || startsWith(github.ref, 'refs/heads/release-') || github.run_number }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+
 jobs:
   check_pr:
     runs-on: ubuntu-latest
+    timeout-minutes: 60
     steps:
     - uses: actions/checkout@v1
 
     - name: "npm ci"
-      run: npm ci
+      run: npm ci --legacy-peer-deps
 
     - name: "npm run build"
       run: npm run build

.github/workflows/codeql-analysis.yml

@@ -11,6 +11,12 @@
 #
 name: "CodeQL"
 
+concurrency:
+  # Skip intermediate builds: all builds except for builds on the `master`, `main`, or `release-*` branches
+  # Cancel intermediate builds: only pull request builds
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref != 'refs/heads/master' || github.ref != 'refs/heads/main' || startsWith(github.ref, 'refs/heads/release-') || github.run_number }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+
 on:
   push:
     branches: [ master, releases/* ]
@@ -24,6 +30,7 @@ jobs:
   analyze:
     name: Analyze
     runs-on: ubuntu-latest
+    timeout-minutes: 60
 
     strategy:
       fail-fast: false

.github/workflows/example-builds-defaultarch.yml

@@ -0,0 +1,40 @@
+name: Example builds (default arch)
+
+concurrency:
+  # Skip intermediate builds: all builds except for builds on the `master`, `main`, or `release-*` branches
+  # Cancel intermediate builds: only pull request builds
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref != 'refs/heads/master' || github.ref != 'refs/heads/main' || startsWith(github.ref, 'refs/heads/release-') || github.run_number }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+
+on:
+  push:
+    branches: ['main', 'master', 'releases/*']
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 60
+    strategy:
+      fail-fast: false
+      matrix:
+        julia-version: ['1']
+        os: [ubuntu-latest, macOS-latest, windows-latest]
+
+    steps:
+      - uses: actions/checkout@v1.0.0
+
+      - name: "Install dependencies"
+        run: |
+          npm install --legacy-peer-deps
+          npm run build
+          npm run pack
+
+      - name: "Set up Julia"
+        id: setup-julia
+        uses: ./
+        with:
+          version: ${{ matrix.julia-version }}
+      - run: julia --version
+      - run: julia --compile=min -O0 -e 'import InteractiveUtils; InteractiveUtils.versioninfo()'

.github/workflows/example-builds-nightly-defaultarch.yml

@@ -0,0 +1,38 @@
+name: Example builds (nightly, default arch)
+
+concurrency:
+  # Skip intermediate builds: all builds except for builds on the `master`, `main`, or `release-*` branches
+  # Cancel intermediate builds: only pull request builds
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref != 'refs/heads/master' || github.ref != 'refs/heads/main' || startsWith(github.ref, 'refs/heads/release-') || github.run_number }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+
+on:
+  push:
+    branches: ['main', 'master', 'releases/*']
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 60
+    strategy:
+      fail-fast: false
+      matrix:
+        julia-version: [nightly, 1.8-nightly]
+        os: [ubuntu-latest, macOS-latest, windows-latest]
+
+    steps:
+      - uses: actions/checkout@v1.0.0
+
+      - name: "Install dependencies"
+        run: |
+          npm install --legacy-peer-deps
+          npm run build
+          npm run pack
+
+      - name: "Set up Julia (${{ matrix.julia-version }})"
+        uses: ./
+        with:
+          version: ${{ matrix.julia-version }}
+      - run: julia --version
+      - run: julia --compile=min -O0 -e 'import InteractiveUtils; InteractiveUtils.versioninfo()'

.github/workflows/example-builds-nightly.yml

@@ -1,7 +1,14 @@
 name: Example builds (nightly)
 
+concurrency:
+  # Skip intermediate builds: all builds except for builds on the `master`, `main`, or `release-*` branches
+  # Cancel intermediate builds: only pull request builds
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref != 'refs/heads/master' || github.ref != 'refs/heads/main' || startsWith(github.ref, 'refs/heads/release-') || github.run_number }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+
 on:
   push:
+    branches: ['main', 'master', 'releases/*']
   pull_request:
   schedule:
     - cron: '37 17 * * *'
@@ -9,29 +16,31 @@ on:
 jobs:
   test:
     runs-on: ${{ matrix.os }}
+    timeout-minutes: 60
     strategy:
       fail-fast: false
       matrix:
+        julia-version: [nightly, 1.8-nightly]
         julia-arch: [x64, x86]
         os: [ubuntu-latest, macOS-latest, windows-latest]
         # 32-bit Julia binaries are not available on macOS
         exclude:
           - os: macOS-latest
             julia-arch: x86
-    
+
     steps:
       - uses: actions/checkout@v1.0.0
-      
+
       - name: "Install dependencies"
         run: |
-          npm install
+          npm install --legacy-peer-deps
           npm run build
           npm run pack
 
-      - name: "Set up Julia (nightly)"
+      - name: "Set up Julia (${{ matrix.julia-version }})"
         uses: ./
         with:
-          version: nightly
+          version: ${{ matrix.julia-version }}
           arch: ${{ matrix.julia-arch }}
-          show-versioninfo: 'true'
       - run: julia --version
+      - run: julia --compile=min -O0 -e 'import InteractiveUtils; InteractiveUtils.versioninfo()'

.github/workflows/example-builds.yml

@@ -1,27 +1,38 @@
 name: Example builds
 
-on: [push, pull_request]
+concurrency:
+  # Skip intermediate builds: all builds except for builds on the `master`, `main`, or `release-*` branches
+  # Cancel intermediate builds: only pull request builds
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref != 'refs/heads/master' || github.ref != 'refs/heads/main' || startsWith(github.ref, 'refs/heads/release-') || github.run_number }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+
+on:
+  push:
+    branches: ['main', 'master', 'releases/*']
+  pull_request:
+  workflow_dispatch:
 
 jobs:
   test:
     runs-on: ${{ matrix.os }}
+    timeout-minutes: 60
     strategy:
       fail-fast: false
       matrix:
-        julia-version: ['1.0.5', '1', '^1.5.0-beta1']
+        julia-version: ['1.0.5', '1.2', '^1.5.0-beta1', '1']
         julia-arch: [x64, x86]
         os: [ubuntu-latest, macOS-latest, windows-latest]
         # 32-bit Julia binaries are not available on macOS
         exclude:
           - os: macOS-latest
             julia-arch: x86
-    
+
     steps:
       - uses: actions/checkout@v1.0.0
 
       - name: "Install dependencies"
         run: |
-          npm install
+          npm install --legacy-peer-deps
           npm run build
           npm run pack
 
@@ -31,5 +42,5 @@ jobs:
         with:
           version: ${{ matrix.julia-version }}
           arch: ${{ matrix.julia-arch }}
-          show-versioninfo: 'true'
       - run: julia --version
+      - run: julia --compile=min -O0 -e 'import InteractiveUtils; InteractiveUtils.versioninfo()'

README.md

@@ -38,13 +38,29 @@ This action sets up a Julia environment for use in actions by downloading a spec
 
     # The architecture of the Julia binaries.
     #
-    # Supported values: x64 | x86
+    # Please note that installing aarch64 binaries only makes sense on self-hosted aarch64 runners.
+    # We currently don't run test builds on that architecture, so we cannot guarantee that the input won't break randomly,
+    # although there is no reason why it would.
     #
-    # Default: x64
+    # Supported values: x64 | x86 | aarch64 (untested)
+    #
+    # Note: you can use X64, X86, and ARM64 as synonyms for x64, x86, and aarch64, respectively.
+    #
+    # Defaults to the architecture of the runner executing the job.
     arch: ''
 
-    # If true, display the output of InteractiveUtils.versioninfo() after installing.
-    # See "versioninfo" below for example usage.
+    # Set the display setting for printing InteractiveUtils.versioninfo() after installing.
+    #
+    # Starting Julia and running InteractiveUtils.versioninfo() takes a significant amount of time (1s or ~10% of the total build time in testing),
+    # so you may not want to run it in every build, in particular on paid runners, as this cost will add up quickly.
+    #
+    # See "versioninfo" below for example usage and further explanations.
+    #
+    # Supported values: true | false | never
+    #
+    # true: Always print versioninfo
+    # false: Only print versioninfo for nightly Julia
+    # never: Never print versioninfo
     #
     # Default: false
     show-versioninfo: ''
@@ -93,6 +109,7 @@ You can either specify specific Julia versions or version ranges. If you specify
 - `^1.3.0-0` is a **caret** version range that includes _all_ pre-releases. It matches all versions `≥ 1.3.0-` and `< 2.0.0`.
 - `~1.3.0-0` is a **tilde** version range that includes _all_ pre-releases. It matches all versions `≥ 1.3.0-` and `< 1.4.0`.
 - `nightly` will install the latest nightly build.
+- `1.7-nightly` will install the latest nightly build for the upcoming 1.7 release. This version will only be available during certain phases of the Julia release cycle.
 
 Internally the action uses node's semver package to resolve version ranges. Its [documentation](https://github.com/npm/node-semver#advanced-range-syntax) contains more details on the version range syntax. You can test what version will be selected for a given input in this JavaScript [REPL](https://repl.it/@SaschaMann/setup-julia-version-logic).
 
@@ -112,7 +129,7 @@ jobs:
       matrix:
         julia-version: ['1.0', '1.2.0', '^1.3.0-rc1']
         os: [ubuntu-latest, windows-latest, macOS-latest]
-    
+
     steps:
       - uses: actions/checkout@v1.0.0
       - name: "Set up Julia"
@@ -138,7 +155,7 @@ jobs:
         exclude:
           - os: macOS-latest
             julia-arch: x86
-    
+
     steps:
       - uses: actions/checkout@v1.0.0
       - name: "Set up Julia"
@@ -165,7 +182,7 @@ jobs:
           - os: windows-latest
             julia-version: ['1.0.4']
             julia-arch: x86
-    
+
     steps:
       - uses: actions/checkout@v1.0.0
       - name: "Set up Julia"
@@ -178,18 +195,13 @@ jobs:
 
 ### versioninfo
 
-By default, only a brief version identifier is printed in the run log. You can display the full `versioninfo` by adding `show-versioninfo`.
-Here's an example that prints this information just for `nightly`:
+By default, only the output of `julia --version` is printed as verification that Julia has been installed for stable versions of Julia.
+`InteractiveUtils.versioninfo()` is run by default for nightly builds.
 
-```yaml
-    - uses: julia-actions/setup-julia@v1
-      with:
-        version: ${{ matrix.version }}
-        arch: ${{ matrix.arch }}
-        show-versioninfo: ${{ matrix.version == 'nightly' }}
- ```
- 
-You use `'true'` if you want it printed for all Julia versions.
+Starting Julia and printing the full versioninfo takes a significant amount of time (1s or ~10% of the total build time in testing), so you may not want to run it in every build, in particular on paid runners as this cost will add up quickly.
+However, `julia --version` does not provide sufficient information to know which commit a nightly binary was built from, therefore it is useful to show the full versioninfo on nightly builds regardless.
+
+You can override this behaviour by changing the input to `never` if you never want to run `InteractiveUtils.versioninfo()` or to `true` if you always want to run `InteractiveUtils.versioninfo()`, even on stable Julia builds.
 
 ## Versioning
 

action.yml

@@ -6,9 +6,9 @@ inputs:
     description: 'The Julia version to download (if necessary) and use. Example: 1.0.4'
     default: '1'
   arch:
-    description: 'Architecture of the Julia binaries. Defaults to x64.'
+    description: 'Architecture of the Julia binaries. Defaults to the architecture of the runner executing the job.'
     required: false
-    default: 'x64'
+    default: '${{ runner.arch }}'
   show-versioninfo:
     description: 'Display InteractiveUtils.versioninfo() after installing'
     required: false
@@ -19,7 +19,7 @@ outputs:
   julia-bindir:
     description: 'Path to the directory containing the Julia executable. Equivalent to JULIA_BINDIR: https://docs.julialang.org/en/v1/manual/environment-variables/#JULIA_BINDIR'
 runs:
-  using: 'node12'
+  using: 'node16'
   main: 'dist/index.js'
 branding:
   icon: 'download'

dist/index.js

@@ -2880,6 +2880,13 @@ function coerce (version, options) {
 }
 
 
+/***/ }),
+
+/***/ 321:
+/***/ (function(module, __unusedexports, __webpack_require__) {
+
+module.exports = __webpack_require__(600);
+
 /***/ }),
 
 /***/ 357:
@@ -3233,6 +3240,73 @@ function getState(name) {
 exports.getState = getState;
 //# sourceMappingURL=core.js.map
 
+/***/ }),
+
+/***/ 523:
+/***/ (function(module, __unusedexports, __webpack_require__) {
+
+// Packages
+var retrier = __webpack_require__(321);
+
+function retry(fn, opts) {
+  function run(resolve, reject) {
+    var options = opts || {};
+
+    // Default `randomize` to true
+    if (!('randomize' in options)) {
+      options.randomize = true;
+    }
+
+    var op = retrier.operation(options);
+
+    // We allow the user to abort retrying
+    // this makes sense in the cases where
+    // knowledge is obtained that retrying
+    // would be futile (e.g.: auth errors)
+
+    function bail(err) {
+      reject(err || new Error('Aborted'));
+    }
+
+    function onError(err, num) {
+      if (err.bail) {
+        bail(err);
+        return;
+      }
+
+      if (!op.retry(err)) {
+        reject(op.mainError());
+      } else if (options.onRetry) {
+        options.onRetry(err, num);
+      }
+    }
+
+    function runAttempt(num) {
+      var val;
+
+      try {
+        val = fn(bail, num);
+      } catch (err) {
+        onError(err, num);
+        return;
+      }
+
+      Promise.resolve(val)
+        .then(resolve)
+        .catch(function catchIt(err) {
+          onError(err, num);
+        });
+    }
+
+    op.attempt(runAttempt);
+  }
+
+  return new Promise(run);
+}
+
+module.exports = retry;
+
+
 /***/ }),
 
 /***/ 533:
@@ -3676,6 +3750,113 @@ function _evaluateVersions(versions, versionSpec) {
 }
 //# sourceMappingURL=tool-cache.js.map
 
+/***/ }),
+
+/***/ 600:
+/***/ (function(__unusedmodule, exports, __webpack_require__) {
+
+var RetryOperation = __webpack_require__(988);
+
+exports.operation = function(options) {
+  var timeouts = exports.timeouts(options);
+  return new RetryOperation(timeouts, {
+      forever: options && options.forever,
+      unref: options && options.unref,
+      maxRetryTime: options && options.maxRetryTime
+  });
+};
+
+exports.timeouts = function(options) {
+  if (options instanceof Array) {
+    return [].concat(options);
+  }
+
+  var opts = {
+    retries: 10,
+    factor: 2,
+    minTimeout: 1 * 1000,
+    maxTimeout: Infinity,
+    randomize: false
+  };
+  for (var key in options) {
+    opts[key] = options[key];
+  }
+
+  if (opts.minTimeout > opts.maxTimeout) {
+    throw new Error('minTimeout is greater than maxTimeout');
+  }
+
+  var timeouts = [];
+  for (var i = 0; i < opts.retries; i++) {
+    timeouts.push(this.createTimeout(i, opts));
+  }
+
+  if (options && options.forever && !timeouts.length) {
+    timeouts.push(this.createTimeout(i, opts));
+  }
+
+  // sort the array numerically ascending
+  timeouts.sort(function(a,b) {
+    return a - b;
+  });
+
+  return timeouts;
+};
+
+exports.createTimeout = function(attempt, opts) {
+  var random = (opts.randomize)
+    ? (Math.random() + 1)
+    : 1;
+
+  var timeout = Math.round(random * opts.minTimeout * Math.pow(opts.factor, attempt));
+  timeout = Math.min(timeout, opts.maxTimeout);
+
+  return timeout;
+};
+
+exports.wrap = function(obj, options, methods) {
+  if (options instanceof Array) {
+    methods = options;
+    options = null;
+  }
+
+  if (!methods) {
+    methods = [];
+    for (var key in obj) {
+      if (typeof obj[key] === 'function') {
+        methods.push(key);
+      }
+    }
+  }
+
+  for (var i = 0; i < methods.length; i++) {
+    var method   = methods[i];
+    var original = obj[method];
+
+    obj[method] = function retryWrapper(original) {
+      var op       = exports.operation(options);
+      var args     = Array.prototype.slice.call(arguments, 1);
+      var callback = args.pop();
+
+      args.push(function(err) {
+        if (op.retry(err)) {
+          return;
+        }
+        if (err) {
+          arguments[0] = op.mainError();
+        }
+        callback.apply(this, arguments);
+      });
+
+      op.attempt(function() {
+        original.apply(obj, args);
+      });
+    }.bind(obj, original);
+    obj[method].options = options;
+  }
+};
+
+
 /***/ }),
 
 /***/ 605:
@@ -3967,12 +4148,19 @@ var __importStar = (this && this.__importStar) || function (mod) {
 };
 Object.defineProperty(exports, "__esModule", { value: true });
 const core = __importStar(__webpack_require__(470));
-const exec = __importStar(__webpack_require__(986));
 const tc = __importStar(__webpack_require__(533));
 const fs = __importStar(__webpack_require__(747));
 const https = __importStar(__webpack_require__(211));
 const path = __importStar(__webpack_require__(622));
 const installer = __importStar(__webpack_require__(749));
+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 {
@@ -3993,7 +4181,7 @@ 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.
@@ -4002,9 +4190,10 @@ 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);
@@ -4030,15 +4219,8 @@ function run() {
             // Set output
             core.setOutput('julia-bindir', path.join(juliaPath, 'bin'));
             // Test if Julia has been installed and print the version
-            if (core.getInput('show-versioninfo') == 'true') {
-                // If enabled, show the full version info
-                // --compile=min -O0 reduces the time from ~1.8-1.9s to ~0.8-0.9s
-                exec.exec('julia', ['--compile=min', '-O0', '-e', 'using InteractiveUtils; versioninfo()']);
-            }
-            else {
-                // Otherwise only print julia --version to save time
-                exec.exec('julia', ['--version']);
-            }
+            const showVersionInfoInput = core.getInput('show-versioninfo');
+            yield installer.showVersionInfo(showVersionInfoInput, version);
         }
         catch (error) {
             core.setFailed(error.message);
@@ -4085,6 +4267,7 @@ const crypto = __importStar(__webpack_require__(417));
 const fs = __importStar(__webpack_require__(747));
 const os = __importStar(__webpack_require__(87));
 const path = __importStar(__webpack_require__(622));
+const retry = __webpack_require__(523);
 const semver = __importStar(__webpack_require__(280));
 // Translations between actions input and Julia arch names
 const osMap = {
@@ -4094,7 +4277,8 @@ const osMap = {
 };
 const archMap = {
     'x86': 'i686',
-    'x64': 'x86_64'
+    'x64': 'x86_64',
+    'aarch64': 'aarch64'
 };
 // Store information about the environment
 const osPlat = os.platform(); // possible values: win32 (Windows), linux (Linux), darwin (macOS)
@@ -4122,7 +4306,15 @@ function calculateChecksum(file) {
  */
 function getJuliaVersionInfo() {
     return __awaiter(this, void 0, void 0, function* () {
-        const versionsFile = yield tc.downloadTool('https://julialang-s3.julialang.org/bin/versions.json');
+        // Occasionally the connection is reset for unknown reasons
+        // In those cases, retry the download
+        const versionsFile = yield retry((bail) => __awaiter(this, void 0, void 0, function* () {
+            return yield tc.downloadTool('https://julialang-s3.julialang.org/bin/versions.json');
+        }), {
+            onRetry: (err) => {
+                core.debug(`Download of versions.json failed, trying again. Error: ${err}`);
+            }
+        });
         return JSON.parse(fs.readFileSync(versionsFile).toString());
     });
 }
@@ -4141,14 +4333,10 @@ function getJuliaVersions(versionInfo) {
 }
 exports.getJuliaVersions = getJuliaVersions;
 function getJuliaVersion(availableReleases, versionInput) {
-    if (semver.valid(versionInput) == versionInput) {
-        // versionInput is a valid version, use it directly
+    if (semver.valid(versionInput) == versionInput || versionInput.endsWith('nightly')) {
+        // versionInput is a valid version or a nightly version, use it directly
         return versionInput;
     }
-    // nightlies
-    if (versionInput == 'nightly') {
-        return 'nightly';
-    }
     // Use the highest available version that matches versionInput
     let version = semver.maxSatisfying(availableReleases, versionInput);
     if (version == null) {
@@ -4159,45 +4347,97 @@ function getJuliaVersion(availableReleases, versionInput) {
     return version;
 }
 exports.getJuliaVersion = getJuliaVersion;
+function getDesiredFileExts() {
+    let fileExt1;
+    let hasFileExt2;
+    let fileExt2;
+    if (osPlat == 'win32') {
+        fileExt1 = 'exe';
+        hasFileExt2 = false;
+        fileExt2 = '';
+    }
+    else if (osPlat == 'darwin') {
+        fileExt1 = 'tar.gz';
+        hasFileExt2 = true;
+        fileExt2 = 'dmg';
+    }
+    else if (osPlat === 'linux') {
+        fileExt1 = 'tar.gz';
+        hasFileExt2 = false;
+        fileExt2 = '';
+    }
+    else {
+        throw new Error(`Platform ${osPlat} is not supported`);
+    }
+    return [fileExt1, hasFileExt2, fileExt2];
+}
 function getNightlyFileName(arch) {
-    let versionExt, ext;
+    let versionExt;
+    let fileExt1;
+    [fileExt1, ,] = getDesiredFileExts();
     if (osPlat == 'win32') {
         versionExt = arch == 'x64' ? '-win64' : '-win32';
-        ext = 'exe';
     }
     else if (osPlat == 'darwin') {
         if (arch == 'x86') {
             throw new Error('32-bit Julia is not available on macOS');
         }
         versionExt = '-mac64';
-        ext = 'dmg';
     }
     else if (osPlat === 'linux') {
         versionExt = arch == 'x64' ? '-linux64' : '-linux32';
-        ext = 'tar.gz';
     }
     else {
         throw new Error(`Platform ${osPlat} is not supported`);
     }
-    return `julia-latest${versionExt}.${ext}`;
+    return `julia-latest${versionExt}.${fileExt1}`;
 }
 function getFileInfo(versionInfo, version, arch) {
-    if (version == 'nightly') {
+    const err = `Could not find ${archMap[arch]}/${version} binaries`;
+    let fileExt1;
+    let hasFileExt2;
+    let fileExt2;
+    [fileExt1, hasFileExt2, fileExt2] = getDesiredFileExts();
+    if (version.endsWith('nightly')) {
         return null;
     }
+    if (!versionInfo[version]) {
+        throw err;
+    }
     for (let file of versionInfo[version].files) {
         if (file.os == osMap[osPlat] && file.arch == archMap[arch]) {
-            return file;
+            if (file.extension == fileExt1) {
+                return file;
+            }
         }
     }
-    throw `Could not find ${archMap[arch]}/${version} binaries`;
+    if (hasFileExt2) {
+        core.debug(`Could not find ${fileExt1}; trying to find ${fileExt2} instead`);
+        for (let file of versionInfo[version].files) {
+            if (file.os == osMap[osPlat] && file.arch == archMap[arch]) {
+                if (file.extension == fileExt2) {
+                    return file;
+                }
+            }
+        }
+    }
+    throw err;
 }
 exports.getFileInfo = getFileInfo;
 function getDownloadURL(fileInfo, version, arch) {
+    const baseURL = `https://julialangnightlies-s3.julialang.org/bin/${osMap[osPlat]}/${arch}`;
+    // release branch nightlies, e.g. 1.6-nightlies should return .../bin/linux/x64/1.6/julia-latest-linux64.tar.gz
+    const majorMinorMatches = /^(\d*.\d*)-nightly/.exec(version);
+    if (majorMinorMatches) {
+        return `${baseURL}/${majorMinorMatches[1]}/${getNightlyFileName(arch)}`;
+    }
     // nightlies
     if (version == 'nightly') {
-        const baseURL = 'https://julialangnightlies-s3.julialang.org/bin';
-        return `${baseURL}/${osMap[osPlat]}/${arch}/${getNightlyFileName(arch)}`;
+        return `${baseURL}/${getNightlyFileName(arch)}`;
+    }
+    // Verify that fileInfo.url points at the official Julia download servers
+    if (!fileInfo.url.startsWith('https://julialang-s3.julialang.org/')) {
+        throw new Error(`versions.json points at a download location outside of Julia's download server: ${fileInfo.url}. Aborting for security reasons.`);
     }
     return fileInfo.url;
 }
@@ -4208,9 +4448,17 @@ function installJulia(versionInfo, version, arch) {
         const fileInfo = getFileInfo(versionInfo, version, arch);
         const downloadURL = getDownloadURL(fileInfo, version, arch);
         core.debug(`downloading Julia from ${downloadURL}`);
-        const juliaDownloadPath = yield tc.downloadTool(downloadURL);
+        // Occasionally the connection is reset for unknown reasons
+        // In those cases, retry the download
+        const juliaDownloadPath = yield retry((bail) => __awaiter(this, void 0, void 0, function* () {
+            return yield tc.downloadTool(downloadURL);
+        }), {
+            onRetry: (err) => {
+                core.debug(`Download of ${downloadURL} failed, trying again. Error: ${err}`);
+            }
+        });
         // Verify checksum
-        if (version != 'nightly') {
+        if (!version.endsWith('nightly')) {
             const checkSum = yield calculateChecksum(juliaDownloadPath);
             if (fileInfo.sha256 != checkSum) {
                 throw new Error(`Checksum of downloaded file does not match the expected checksum from versions.json.\nExpected: ${fileInfo.sha256}\nGot: ${checkSum}`);
@@ -4228,7 +4476,7 @@ function installJulia(versionInfo, version, arch) {
                 yield exec.exec('tar', ['xf', juliaDownloadPath, '--strip-components=1', '-C', tempInstallDir]);
                 return tempInstallDir;
             case 'win32':
-                if (version == 'nightly' || semver.gtr(version, '1.3', { includePrerelease: true })) {
+                if (version.endsWith('nightly') || semver.gtr(version, '1.3', { includePrerelease: true })) {
                     // The installer changed in 1.4: https://github.com/JuliaLang/julia/blob/ef0c9108b12f3ae177c51037934351ffa703b0b5/NEWS.md#build-system-changes
                     yield exec.exec('powershell', ['-Command', `Start-Process -FilePath ${juliaDownloadPath} -ArgumentList "/SILENT /dir=${path.join(process.cwd(), tempInstallDir)}" -NoNewWindow -Wait`]);
                 }
@@ -4237,15 +4485,60 @@ function installJulia(versionInfo, version, arch) {
                 }
                 return tempInstallDir;
             case 'darwin':
-                yield exec.exec('hdiutil', ['attach', juliaDownloadPath]);
-                yield exec.exec('/bin/bash', ['-c', `cp -a /Volumes/Julia-*/Julia-*.app/Contents/Resources/julia ${tempInstallDir}`]);
-                return path.join(tempInstallDir, 'julia');
+                if (fileInfo !== null && fileInfo.extension == 'dmg') {
+                    core.debug(`Support for .dmg files is deprecated and may be removed in a future release`);
+                    yield exec.exec('hdiutil', ['attach', juliaDownloadPath]);
+                    yield exec.exec('/bin/bash', ['-c', `cp -a /Volumes/Julia-*/Julia-*.app/Contents/Resources/julia ${tempInstallDir}`]);
+                    return path.join(tempInstallDir, 'julia');
+                }
+                else {
+                    // tc.extractTar doesn't support stripping components, so we have to call tar manually
+                    yield exec.exec('tar', ['xf', juliaDownloadPath, '--strip-components=1', '-C', tempInstallDir]);
+                    return tempInstallDir;
+                }
             default:
                 throw new Error(`Platform ${osPlat} is not supported`);
         }
     });
 }
 exports.installJulia = installJulia;
+/**
+ * Test if Julia has been installed and print the version.
+ *
+ * true => always show versioninfo
+ * false => only show on nightlies
+ * never => never show it anywhere
+ *
+ * @param showVersionInfoInput
+ */
+function showVersionInfo(showVersionInfoInput, version) {
+    return __awaiter(this, void 0, void 0, function* () {
+        // --compile=min -O0 reduces the time from ~1.8-1.9s to ~0.8-0.9s
+        let exitCode;
+        switch (showVersionInfoInput) {
+            case 'true':
+                exitCode = yield exec.exec('julia', ['--compile=min', '-O0', '-e', 'using InteractiveUtils; versioninfo()']);
+                break;
+            case 'false':
+                if (version.endsWith('nightly')) {
+                    exitCode = yield exec.exec('julia', ['--compile=min', '-O0', '-e', 'using InteractiveUtils; versioninfo()']);
+                }
+                else {
+                    exitCode = yield exec.exec('julia', ['--version']);
+                }
+                break;
+            case 'never':
+                exitCode = yield exec.exec('julia', ['--version']);
+                break;
+            default:
+                throw new Error(`${showVersionInfoInput} is not a valid value for show-versioninfo. Supported values: true | false | never`);
+        }
+        if (exitCode !== 0) {
+            throw new Error(`Julia could not be installed properly. Exit code: ${exitCode}`);
+        }
+    });
+}
+exports.showVersionInfo = showVersionInfo;
 
 
 /***/ }),
@@ -4797,6 +5090,171 @@ function exec(commandLine, args, options) {
 exports.exec = exec;
 //# sourceMappingURL=exec.js.map
 
+/***/ }),
+
+/***/ 988:
+/***/ (function(module) {
+
+function RetryOperation(timeouts, options) {
+  // Compatibility for the old (timeouts, retryForever) signature
+  if (typeof options === 'boolean') {
+    options = { forever: options };
+  }
+
+  this._originalTimeouts = JSON.parse(JSON.stringify(timeouts));
+  this._timeouts = timeouts;
+  this._options = options || {};
+  this._maxRetryTime = options && options.maxRetryTime || Infinity;
+  this._fn = null;
+  this._errors = [];
+  this._attempts = 1;
+  this._operationTimeout = null;
+  this._operationTimeoutCb = null;
+  this._timeout = null;
+  this._operationStart = null;
+
+  if (this._options.forever) {
+    this._cachedTimeouts = this._timeouts.slice(0);
+  }
+}
+module.exports = RetryOperation;
+
+RetryOperation.prototype.reset = function() {
+  this._attempts = 1;
+  this._timeouts = this._originalTimeouts;
+}
+
+RetryOperation.prototype.stop = function() {
+  if (this._timeout) {
+    clearTimeout(this._timeout);
+  }
+
+  this._timeouts       = [];
+  this._cachedTimeouts = null;
+};
+
+RetryOperation.prototype.retry = function(err) {
+  if (this._timeout) {
+    clearTimeout(this._timeout);
+  }
+
+  if (!err) {
+    return false;
+  }
+  var currentTime = new Date().getTime();
+  if (err && currentTime - this._operationStart >= this._maxRetryTime) {
+    this._errors.unshift(new Error('RetryOperation timeout occurred'));
+    return false;
+  }
+
+  this._errors.push(err);
+
+  var timeout = this._timeouts.shift();
+  if (timeout === undefined) {
+    if (this._cachedTimeouts) {
+      // retry forever, only keep last error
+      this._errors.splice(this._errors.length - 1, this._errors.length);
+      this._timeouts = this._cachedTimeouts.slice(0);
+      timeout = this._timeouts.shift();
+    } else {
+      return false;
+    }
+  }
+
+  var self = this;
+  var timer = setTimeout(function() {
+    self._attempts++;
+
+    if (self._operationTimeoutCb) {
+      self._timeout = setTimeout(function() {
+        self._operationTimeoutCb(self._attempts);
+      }, self._operationTimeout);
+
+      if (self._options.unref) {
+          self._timeout.unref();
+      }
+    }
+
+    self._fn(self._attempts);
+  }, timeout);
+
+  if (this._options.unref) {
+      timer.unref();
+  }
+
+  return true;
+};
+
+RetryOperation.prototype.attempt = function(fn, timeoutOps) {
+  this._fn = fn;
+
+  if (timeoutOps) {
+    if (timeoutOps.timeout) {
+      this._operationTimeout = timeoutOps.timeout;
+    }
+    if (timeoutOps.cb) {
+      this._operationTimeoutCb = timeoutOps.cb;
+    }
+  }
+
+  var self = this;
+  if (this._operationTimeoutCb) {
+    this._timeout = setTimeout(function() {
+      self._operationTimeoutCb();
+    }, self._operationTimeout);
+  }
+
+  this._operationStart = new Date().getTime();
+
+  this._fn(this._attempts);
+};
+
+RetryOperation.prototype.try = function(fn) {
+  console.log('Using RetryOperation.try() is deprecated');
+  this.attempt(fn);
+};
+
+RetryOperation.prototype.start = function(fn) {
+  console.log('Using RetryOperation.start() is deprecated');
+  this.attempt(fn);
+};
+
+RetryOperation.prototype.start = RetryOperation.prototype.try;
+
+RetryOperation.prototype.errors = function() {
+  return this._errors;
+};
+
+RetryOperation.prototype.attempts = function() {
+  return this._attempts;
+};
+
+RetryOperation.prototype.mainError = function() {
+  if (this._errors.length === 0) {
+    return null;
+  }
+
+  var counts = {};
+  var mainError = null;
+  var mainErrorCount = 0;
+
+  for (var i = 0; i < this._errors.length; i++) {
+    var error = this._errors[i];
+    var message = error.message;
+    var count = (counts[message] || 0) + 1;
+
+    counts[message] = count;
+
+    if (count >= mainErrorCount) {
+      mainError = error;
+      mainErrorCount = count;
+    }
+  }
+
+  return mainError;
+};
+
+
 /***/ })
 
 /******/ });

lib/installer.js

@@ -22,6 +22,7 @@ const crypto = __importStar(require("crypto"));
 const fs = __importStar(require("fs"));
 const os = __importStar(require("os"));
 const path = __importStar(require("path"));
+const retry = require("async-retry");
 const semver = __importStar(require("semver"));
 // Translations between actions input and Julia arch names
 const osMap = {
@@ -31,7 +32,8 @@ const osMap = {
 };
 const archMap = {
     'x86': 'i686',
-    'x64': 'x86_64'
+    'x64': 'x86_64',
+    'aarch64': 'aarch64'
 };
 // Store information about the environment
 const osPlat = os.platform(); // possible values: win32 (Windows), linux (Linux), darwin (macOS)
@@ -59,7 +61,15 @@ function calculateChecksum(file) {
  */
 function getJuliaVersionInfo() {
     return __awaiter(this, void 0, void 0, function* () {
-        const versionsFile = yield tc.downloadTool('https://julialang-s3.julialang.org/bin/versions.json');
+        // Occasionally the connection is reset for unknown reasons
+        // In those cases, retry the download
+        const versionsFile = yield retry((bail) => __awaiter(this, void 0, void 0, function* () {
+            return yield tc.downloadTool('https://julialang-s3.julialang.org/bin/versions.json');
+        }), {
+            onRetry: (err) => {
+                core.debug(`Download of versions.json failed, trying again. Error: ${err}`);
+            }
+        });
         return JSON.parse(fs.readFileSync(versionsFile).toString());
     });
 }
@@ -78,14 +88,10 @@ function getJuliaVersions(versionInfo) {
 }
 exports.getJuliaVersions = getJuliaVersions;
 function getJuliaVersion(availableReleases, versionInput) {
-    if (semver.valid(versionInput) == versionInput) {
-        // versionInput is a valid version, use it directly
+    if (semver.valid(versionInput) == versionInput || versionInput.endsWith('nightly')) {
+        // versionInput is a valid version or a nightly version, use it directly
         return versionInput;
     }
-    // nightlies
-    if (versionInput == 'nightly') {
-        return 'nightly';
-    }
     // Use the highest available version that matches versionInput
     let version = semver.maxSatisfying(availableReleases, versionInput);
     if (version == null) {
@@ -96,45 +102,97 @@ function getJuliaVersion(availableReleases, versionInput) {
     return version;
 }
 exports.getJuliaVersion = getJuliaVersion;
+function getDesiredFileExts() {
+    let fileExt1;
+    let hasFileExt2;
+    let fileExt2;
+    if (osPlat == 'win32') {
+        fileExt1 = 'exe';
+        hasFileExt2 = false;
+        fileExt2 = '';
+    }
+    else if (osPlat == 'darwin') {
+        fileExt1 = 'tar.gz';
+        hasFileExt2 = true;
+        fileExt2 = 'dmg';
+    }
+    else if (osPlat === 'linux') {
+        fileExt1 = 'tar.gz';
+        hasFileExt2 = false;
+        fileExt2 = '';
+    }
+    else {
+        throw new Error(`Platform ${osPlat} is not supported`);
+    }
+    return [fileExt1, hasFileExt2, fileExt2];
+}
 function getNightlyFileName(arch) {
-    let versionExt, ext;
+    let versionExt;
+    let fileExt1;
+    [fileExt1, ,] = getDesiredFileExts();
     if (osPlat == 'win32') {
         versionExt = arch == 'x64' ? '-win64' : '-win32';
-        ext = 'exe';
     }
     else if (osPlat == 'darwin') {
         if (arch == 'x86') {
             throw new Error('32-bit Julia is not available on macOS');
         }
         versionExt = '-mac64';
-        ext = 'dmg';
     }
     else if (osPlat === 'linux') {
         versionExt = arch == 'x64' ? '-linux64' : '-linux32';
-        ext = 'tar.gz';
     }
     else {
         throw new Error(`Platform ${osPlat} is not supported`);
     }
-    return `julia-latest${versionExt}.${ext}`;
+    return `julia-latest${versionExt}.${fileExt1}`;
 }
 function getFileInfo(versionInfo, version, arch) {
-    if (version == 'nightly') {
+    const err = `Could not find ${archMap[arch]}/${version} binaries`;
+    let fileExt1;
+    let hasFileExt2;
+    let fileExt2;
+    [fileExt1, hasFileExt2, fileExt2] = getDesiredFileExts();
+    if (version.endsWith('nightly')) {
         return null;
     }
+    if (!versionInfo[version]) {
+        throw err;
+    }
     for (let file of versionInfo[version].files) {
         if (file.os == osMap[osPlat] && file.arch == archMap[arch]) {
-            return file;
+            if (file.extension == fileExt1) {
+                return file;
+            }
         }
     }
-    throw `Could not find ${archMap[arch]}/${version} binaries`;
+    if (hasFileExt2) {
+        core.debug(`Could not find ${fileExt1}; trying to find ${fileExt2} instead`);
+        for (let file of versionInfo[version].files) {
+            if (file.os == osMap[osPlat] && file.arch == archMap[arch]) {
+                if (file.extension == fileExt2) {
+                    return file;
+                }
+            }
+        }
+    }
+    throw err;
 }
 exports.getFileInfo = getFileInfo;
 function getDownloadURL(fileInfo, version, arch) {
+    const baseURL = `https://julialangnightlies-s3.julialang.org/bin/${osMap[osPlat]}/${arch}`;
+    // release branch nightlies, e.g. 1.6-nightlies should return .../bin/linux/x64/1.6/julia-latest-linux64.tar.gz
+    const majorMinorMatches = /^(\d*.\d*)-nightly/.exec(version);
+    if (majorMinorMatches) {
+        return `${baseURL}/${majorMinorMatches[1]}/${getNightlyFileName(arch)}`;
+    }
     // nightlies
     if (version == 'nightly') {
-        const baseURL = 'https://julialangnightlies-s3.julialang.org/bin';
-        return `${baseURL}/${osMap[osPlat]}/${arch}/${getNightlyFileName(arch)}`;
+        return `${baseURL}/${getNightlyFileName(arch)}`;
+    }
+    // Verify that fileInfo.url points at the official Julia download servers
+    if (!fileInfo.url.startsWith('https://julialang-s3.julialang.org/')) {
+        throw new Error(`versions.json points at a download location outside of Julia's download server: ${fileInfo.url}. Aborting for security reasons.`);
     }
     return fileInfo.url;
 }
@@ -145,9 +203,17 @@ function installJulia(versionInfo, version, arch) {
         const fileInfo = getFileInfo(versionInfo, version, arch);
         const downloadURL = getDownloadURL(fileInfo, version, arch);
         core.debug(`downloading Julia from ${downloadURL}`);
-        const juliaDownloadPath = yield tc.downloadTool(downloadURL);
+        // Occasionally the connection is reset for unknown reasons
+        // In those cases, retry the download
+        const juliaDownloadPath = yield retry((bail) => __awaiter(this, void 0, void 0, function* () {
+            return yield tc.downloadTool(downloadURL);
+        }), {
+            onRetry: (err) => {
+                core.debug(`Download of ${downloadURL} failed, trying again. Error: ${err}`);
+            }
+        });
         // Verify checksum
-        if (version != 'nightly') {
+        if (!version.endsWith('nightly')) {
             const checkSum = yield calculateChecksum(juliaDownloadPath);
             if (fileInfo.sha256 != checkSum) {
                 throw new Error(`Checksum of downloaded file does not match the expected checksum from versions.json.\nExpected: ${fileInfo.sha256}\nGot: ${checkSum}`);
@@ -165,7 +231,7 @@ function installJulia(versionInfo, version, arch) {
                 yield exec.exec('tar', ['xf', juliaDownloadPath, '--strip-components=1', '-C', tempInstallDir]);
                 return tempInstallDir;
             case 'win32':
-                if (version == 'nightly' || semver.gtr(version, '1.3', { includePrerelease: true })) {
+                if (version.endsWith('nightly') || semver.gtr(version, '1.3', { includePrerelease: true })) {
                     // The installer changed in 1.4: https://github.com/JuliaLang/julia/blob/ef0c9108b12f3ae177c51037934351ffa703b0b5/NEWS.md#build-system-changes
                     yield exec.exec('powershell', ['-Command', `Start-Process -FilePath ${juliaDownloadPath} -ArgumentList "/SILENT /dir=${path.join(process.cwd(), tempInstallDir)}" -NoNewWindow -Wait`]);
                 }
@@ -174,12 +240,57 @@ function installJulia(versionInfo, version, arch) {
                 }
                 return tempInstallDir;
             case 'darwin':
-                yield exec.exec('hdiutil', ['attach', juliaDownloadPath]);
-                yield exec.exec('/bin/bash', ['-c', `cp -a /Volumes/Julia-*/Julia-*.app/Contents/Resources/julia ${tempInstallDir}`]);
-                return path.join(tempInstallDir, 'julia');
+                if (fileInfo !== null && fileInfo.extension == 'dmg') {
+                    core.debug(`Support for .dmg files is deprecated and may be removed in a future release`);
+                    yield exec.exec('hdiutil', ['attach', juliaDownloadPath]);
+                    yield exec.exec('/bin/bash', ['-c', `cp -a /Volumes/Julia-*/Julia-*.app/Contents/Resources/julia ${tempInstallDir}`]);
+                    return path.join(tempInstallDir, 'julia');
+                }
+                else {
+                    // tc.extractTar doesn't support stripping components, so we have to call tar manually
+                    yield exec.exec('tar', ['xf', juliaDownloadPath, '--strip-components=1', '-C', tempInstallDir]);
+                    return tempInstallDir;
+                }
             default:
                 throw new Error(`Platform ${osPlat} is not supported`);
         }
     });
 }
 exports.installJulia = installJulia;
+/**
+ * Test if Julia has been installed and print the version.
+ *
+ * true => always show versioninfo
+ * false => only show on nightlies
+ * never => never show it anywhere
+ *
+ * @param showVersionInfoInput
+ */
+function showVersionInfo(showVersionInfoInput, version) {
+    return __awaiter(this, void 0, void 0, function* () {
+        // --compile=min -O0 reduces the time from ~1.8-1.9s to ~0.8-0.9s
+        let exitCode;
+        switch (showVersionInfoInput) {
+            case 'true':
+                exitCode = yield exec.exec('julia', ['--compile=min', '-O0', '-e', 'using InteractiveUtils; versioninfo()']);
+                break;
+            case 'false':
+                if (version.endsWith('nightly')) {
+                    exitCode = yield exec.exec('julia', ['--compile=min', '-O0', '-e', 'using InteractiveUtils; versioninfo()']);
+                }
+                else {
+                    exitCode = yield exec.exec('julia', ['--version']);
+                }
+                break;
+            case 'never':
+                exitCode = yield exec.exec('julia', ['--version']);
+                break;
+            default:
+                throw new Error(`${showVersionInfoInput} is not a valid value for show-versioninfo. Supported values: true | false | never`);
+        }
+        if (exitCode !== 0) {
+            throw new Error(`Julia could not be installed properly. Exit code: ${exitCode}`);
+        }
+    });
+}
+exports.showVersionInfo = showVersionInfo;

lib/setup-julia.js

@@ -16,12 +16,19 @@ var __importStar = (this && this.__importStar) || function (mod) {
 };
 Object.defineProperty(exports, "__esModule", { value: true });
 const core = __importStar(require("@actions/core"));
-const exec = __importStar(require("@actions/exec"));
 const tc = __importStar(require("@actions/tool-cache"));
 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 {
@@ -42,7 +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.
@@ -51,9 +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);
@@ -79,15 +87,8 @@ function run() {
             // Set output
             core.setOutput('julia-bindir', path.join(juliaPath, 'bin'));
             // Test if Julia has been installed and print the version
-            if (core.getInput('show-versioninfo') == 'true') {
-                // If enabled, show the full version info
-                // --compile=min -O0 reduces the time from ~1.8-1.9s to ~0.8-0.9s
-                exec.exec('julia', ['--compile=min', '-O0', '-e', 'using InteractiveUtils; versioninfo()']);
-            }
-            else {
-                // Otherwise only print julia --version to save time
-                exec.exec('julia', ['--version']);
-            }
+            const showVersionInfoInput = core.getInput('show-versioninfo');
+            yield installer.showVersionInfo(showVersionInfoInput, version);
         }
         catch (error) {
             core.setFailed(error.message);

package.json

@@ -1,6 +1,6 @@
 {
   "name": "setup-julia",
-  "version": "1.5.1",
+  "version": "1.8.2",
   "private": true,
   "description": "setup Julia action",
   "main": "lib/setup-julia.js",
@@ -25,9 +25,11 @@
     "@actions/exec": "^1.0.0",
     "@actions/io": "^1.0.0",
     "@actions/tool-cache": "^1.0.0",
+    "async-retry": "^1.3.1",
     "semver": "^6.3.0"
   },
   "devDependencies": {
+    "@types/async-retry": "^1.4.2",
     "@types/jest": "^24.0.13",
     "@types/node": "^12.12.7",
     "@types/semver": "^6.0.0",

src/installer.ts

@@ -6,6 +6,7 @@ import * as crypto from 'crypto'
 import * as fs from 'fs'
 import * as os from 'os'
 import * as path from 'path'
+import retry = require('async-retry')
 
 import * as semver from 'semver'
 
@@ -17,7 +18,8 @@ const osMap = {
 }
 const archMap = {
     'x86': 'i686',
-    'x64': 'x86_64'
+    'x64': 'x86_64',
+    'aarch64': 'aarch64'
 }
 
 // Store information about the environment
@@ -47,7 +49,15 @@ async function calculateChecksum(file: string): Promise<string> {
  * @returns The content of the downloaded versions.json file as object.
  */
 export async function getJuliaVersionInfo(): Promise<object> {
-    const versionsFile = await tc.downloadTool('https://julialang-s3.julialang.org/bin/versions.json')
+    // Occasionally the connection is reset for unknown reasons
+    // In those cases, retry the download
+    const versionsFile = await retry(async (bail: Function) => {
+        return await tc.downloadTool('https://julialang-s3.julialang.org/bin/versions.json')
+    }, {
+        onRetry: (err: Error) => {
+            core.debug(`Download of versions.json failed, trying again. Error: ${err}`)
+        }
+    })
 
     return JSON.parse(fs.readFileSync(versionsFile).toString())
 }
@@ -66,16 +76,11 @@ export async function getJuliaVersions(versionInfo): Promise<string[]> {
 }
 
 export function getJuliaVersion(availableReleases: string[], versionInput: string): string {
-    if (semver.valid(versionInput) == versionInput) {
-        // versionInput is a valid version, use it directly
+    if (semver.valid(versionInput) == versionInput || versionInput.endsWith('nightly')) {
+        // versionInput is a valid version or a nightly version, use it directly
         return versionInput
     }
 
-    // nightlies
-    if (versionInput == 'nightly') {
-        return 'nightly'
-    }
-
     // Use the highest available version that matches versionInput
     let version = semver.maxSatisfying(availableReleases, versionInput)
     if (version == null) {
@@ -88,49 +93,107 @@ export function getJuliaVersion(availableReleases: string[], versionInput: strin
     return version
 }
 
+function getDesiredFileExts(): [string, boolean, string] {
+    let fileExt1: string
+    let hasFileExt2: boolean
+    let fileExt2: string
+
+    if (osPlat == 'win32') {
+        fileExt1 = 'exe'
+        hasFileExt2 = false
+        fileExt2 = ''
+    } else if (osPlat == 'darwin') {
+        fileExt1 = 'tar.gz'
+        hasFileExt2 = true
+        fileExt2 = 'dmg'
+    } else if (osPlat === 'linux') {
+        fileExt1 = 'tar.gz'
+        hasFileExt2 = false
+        fileExt2 = ''
+    } else {
+        throw new Error(`Platform ${osPlat} is not supported`)
+    }
+
+    return [fileExt1, hasFileExt2, fileExt2]
+}
+
 function getNightlyFileName(arch: string): string {
-    let versionExt: string, ext: string
+    let versionExt: string
+    let fileExt1: string
+    [fileExt1, , ] = getDesiredFileExts()
 
     if (osPlat == 'win32') {
         versionExt = arch == 'x64' ? '-win64' : '-win32'
-        ext = 'exe'
     } else if (osPlat == 'darwin') {
         if (arch == 'x86') {
             throw new Error('32-bit Julia is not available on macOS')
         }
         versionExt = '-mac64'
-        ext = 'dmg'
     } else if (osPlat === 'linux') {
         versionExt = arch == 'x64' ? '-linux64' : '-linux32'
-        ext = 'tar.gz'
     } else {
         throw new Error(`Platform ${osPlat} is not supported`)
     }
 
-    return `julia-latest${versionExt}.${ext}`
+    return `julia-latest${versionExt}.${fileExt1}`
 }
 
 export function getFileInfo(versionInfo, version: string, arch: string) {
-    if (version == 'nightly') {
+    const err = `Could not find ${archMap[arch]}/${version} binaries`
+
+    let fileExt1: string
+    let hasFileExt2: boolean
+    let fileExt2: string
+    [fileExt1, hasFileExt2, fileExt2] = getDesiredFileExts()
+
+    if (version.endsWith('nightly')) {
         return null
     }
 
+    if (!versionInfo[version]) {
+       throw err
+    }
+
     for (let file of versionInfo[version].files) {
         if (file.os == osMap[osPlat] && file.arch == archMap[arch]) {
-            return file
+            if (file.extension == fileExt1) {
+                return file
+            }
         }
     }
 
-    throw `Could not find ${archMap[arch]}/${version} binaries`
+    if (hasFileExt2) {
+        core.debug(`Could not find ${fileExt1}; trying to find ${fileExt2} instead`)
+        for (let file of versionInfo[version].files) {
+            if (file.os == osMap[osPlat] && file.arch == archMap[arch]) {
+                if (file.extension == fileExt2) {
+                    return file
+                }
+            }
+        }
+    }
+
+    throw err
 }
 
 export function getDownloadURL(fileInfo, version: string, arch: string): string {
-    // nightlies
-    if (version == 'nightly') {
-        const baseURL = 'https://julialangnightlies-s3.julialang.org/bin'
-        return `${baseURL}/${osMap[osPlat]}/${arch}/${getNightlyFileName(arch)}`
+    const baseURL = `https://julialangnightlies-s3.julialang.org/bin/${osMap[osPlat]}/${arch}`
+
+    // release branch nightlies, e.g. 1.6-nightlies should return .../bin/linux/x64/1.6/julia-latest-linux64.tar.gz
+    const majorMinorMatches = /^(\d*.\d*)-nightly/.exec(version)
+    if (majorMinorMatches) {
+        return `${baseURL}/${majorMinorMatches[1]}/${getNightlyFileName(arch)}`
     }
 
+    // nightlies
+    if (version == 'nightly') {
+        return `${baseURL}/${getNightlyFileName(arch)}`
+    }
+
+    // Verify that fileInfo.url points at the official Julia download servers
+    if (!fileInfo.url.startsWith('https://julialang-s3.julialang.org/')) {
+        throw new Error(`versions.json points at a download location outside of Julia's download server: ${fileInfo.url}. Aborting for security reasons.`)
+    }
     return fileInfo.url
 }
 
@@ -139,10 +202,19 @@ export async function installJulia(versionInfo, version: string, arch: string):
     const fileInfo = getFileInfo(versionInfo, version, arch)
     const downloadURL = getDownloadURL(fileInfo, version, arch)
     core.debug(`downloading Julia from ${downloadURL}`)
-    const juliaDownloadPath = await tc.downloadTool(downloadURL)
+
+    // Occasionally the connection is reset for unknown reasons
+    // In those cases, retry the download
+    const juliaDownloadPath = await retry(async (bail: Function) => {
+        return await tc.downloadTool(downloadURL)
+    }, {
+        onRetry: (err: Error) => {
+            core.debug(`Download of ${downloadURL} failed, trying again. Error: ${err}`)
+        }
+    })
 
     // Verify checksum
-    if (version != 'nightly') {
+    if (!version.endsWith('nightly')) {
         const checkSum = await calculateChecksum(juliaDownloadPath)
         if (fileInfo.sha256 != checkSum) {
             throw new Error(`Checksum of downloaded file does not match the expected checksum from versions.json.\nExpected: ${fileInfo.sha256}\nGot: ${checkSum}`)
@@ -161,7 +233,7 @@ export async function installJulia(versionInfo, version: string, arch: string):
             await exec.exec('tar', ['xf', juliaDownloadPath, '--strip-components=1', '-C', tempInstallDir])
             return tempInstallDir
         case 'win32':
-            if (version == 'nightly' || semver.gtr(version, '1.3', {includePrerelease: true})) {
+            if (version.endsWith('nightly') || semver.gtr(version, '1.3', {includePrerelease: true})) {
                 // The installer changed in 1.4: https://github.com/JuliaLang/julia/blob/ef0c9108b12f3ae177c51037934351ffa703b0b5/NEWS.md#build-system-changes
                 await exec.exec('powershell', ['-Command', `Start-Process -FilePath ${juliaDownloadPath} -ArgumentList "/SILENT /dir=${path.join(process.cwd(), tempInstallDir)}" -NoNewWindow -Wait`])
             } else {
@@ -169,10 +241,56 @@ export async function installJulia(versionInfo, version: string, arch: string):
             }
             return tempInstallDir
         case 'darwin':
-            await exec.exec('hdiutil', ['attach', juliaDownloadPath])
-            await exec.exec('/bin/bash', ['-c', `cp -a /Volumes/Julia-*/Julia-*.app/Contents/Resources/julia ${tempInstallDir}`])
-            return path.join(tempInstallDir, 'julia')
+            if (fileInfo !== null && fileInfo.extension == 'dmg') {
+                core.debug(`Support for .dmg files is deprecated and may be removed in a future release`)
+                await exec.exec('hdiutil', ['attach', juliaDownloadPath])
+                await exec.exec('/bin/bash', ['-c', `cp -a /Volumes/Julia-*/Julia-*.app/Contents/Resources/julia ${tempInstallDir}`])
+                return path.join(tempInstallDir, 'julia')
+            } else {
+                // tc.extractTar doesn't support stripping components, so we have to call tar manually
+                await exec.exec('tar', ['xf', juliaDownloadPath, '--strip-components=1', '-C', tempInstallDir])
+                return tempInstallDir
+            }
         default:
             throw new Error(`Platform ${osPlat} is not supported`)
     }
 }
+
+/**
+ * Test if Julia has been installed and print the version.
+ *
+ * true => always show versioninfo
+ * false => only show on nightlies
+ * never => never show it anywhere
+ *
+ * @param showVersionInfoInput
+ */
+export async function showVersionInfo(showVersionInfoInput: string, version: string): Promise<void> {
+    // --compile=min -O0 reduces the time from ~1.8-1.9s to ~0.8-0.9s
+    let exitCode: number
+
+    switch (showVersionInfoInput) {
+        case 'true':
+            exitCode = await exec.exec('julia', ['--compile=min', '-O0', '-e', 'using InteractiveUtils; versioninfo()'])
+            break
+
+        case 'false':
+            if (version.endsWith('nightly')) {
+                exitCode = await exec.exec('julia', ['--compile=min', '-O0', '-e', 'using InteractiveUtils; versioninfo()'])
+            } else {
+                exitCode = await exec.exec('julia', ['--version'])
+            }
+            break
+
+        case 'never':
+            exitCode = await exec.exec('julia', ['--version'])
+            break
+
+        default:
+            throw new Error(`${showVersionInfoInput} is not a valid value for show-versioninfo. Supported values: true | false | never`)
+    }
+
+    if (exitCode !== 0) {
+        throw new Error(`Julia could not be installed properly. Exit code: ${exitCode}`)
+    }
+}

src/setup-julia.ts

@@ -8,6 +8,15 @@ import * as path from 'path'
 
 import * as installer from './installer'
 
+const archSynonyms = {
+    'x86': 'x86',
+    'X86': 'x86',
+    'x64': 'x64',
+    'X64': 'x64',
+    'aarch64': 'aarch64',
+    'ARM64': 'aarch64'
+}
+
 async function run() {
     try {
         // Debugging info
@@ -30,7 +39,7 @@ async 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 }}`.
@@ -40,10 +49,12 @@ async 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 = await installer.getJuliaVersionInfo()
         const availableReleases = await installer.getJuliaVersions(versionInfo)
         const version = installer.getJuliaVersion(availableReleases, versionInput)
@@ -75,14 +86,8 @@ async function run() {
         core.setOutput('julia-bindir', path.join(juliaPath, 'bin'))
 
         // Test if Julia has been installed and print the version
-        if (core.getInput('show-versioninfo') == 'true') {
-            // If enabled, show the full version info
-            // --compile=min -O0 reduces the time from ~1.8-1.9s to ~0.8-0.9s
-            exec.exec('julia', ['--compile=min', '-O0', '-e', 'using InteractiveUtils; versioninfo()'])
-        } else {
-            // Otherwise only print julia --version to save time
-            exec.exec('julia', ['--version'])
-        }
+        const showVersionInfoInput = core.getInput('show-versioninfo')
+        await installer.showVersionInfo(showVersionInfoInput, version)
     } catch (error) {
         core.setFailed(error.message)
     }