Add production dependencies & build

There are no code changes, this merely updates the README and therefore the Marketplace description

.gitignore

@@ -1,3 +1,3 @@
 node_modules/
 __tests__/runner/*
-dist/
+!dist/

README.md

@@ -49,9 +49,7 @@ You can either specify specific Julia versions or version ranges. If you specify
 
 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).
 
-#### WARNING: Version ranges are experimental and potentially out of date
-
-Currently the list of available versions is hardcoded. You have to use the latest version of the action to be able to install the latest Julia versions. Once available we will use a list of versions provided on julialang.org.
+The available Julia versions are pulled from [`versions.json`](https://julialang-s3.julialang.org/bin/versions.json). This file is automatically updated once a day. Therefore it may take up to 24 hours until a newly released Julia version is available in the action.
 
 ### Matrix Testing
 
@@ -143,13 +141,17 @@ You can specify commits, branches or tags in your workflows as follows:
 
 ```yaml
 steps:
-  - uses: julia-actions/setup-julia@6ae948d # commit SHA
+  - uses: julia-actions/setup-julia@d26d1111976eae5f00db04f0515ab744ec9cd79e # commit SHA of the tagged 1.3.1 commit
   - uses: julia-actions/setup-julia@master  # branch
   - uses: julia-actions/setup-julia@latest  # latest version tag (may break existing workflows)
   - uses: julia-actions/setup-julia@v1      # major version tag
   - uses: julia-actions/setup-julia@v0.1.0  # specific version tag
 ```
 
+If your workflow requires access to secrets, you should always pin it to a commit SHA instead of a tag.
+This will protect you in case a bad actor gains access to the setup-julia repo.
+You can find more information in [GitHub's security hardening guide](https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/security-hardening-for-github-actions#using-third-party-actions).
+
 ## Debug logs
 
 You can enable [Step Debug Logs](https://github.com/actions/toolkit/blob/main/docs/action-debugging.md#step-debug-logs) for more detailed logs.

__tests__/installer.test.ts

@@ -0,0 +1,113 @@
+// The testing setup has been derived from the actions/setup-go@bc6edb5 action.
+// Check README.md for licence information.
+
+import * as path from 'path'
+
+import * as io from '@actions/io'
+
+import nock = require('nock')
+import * as semver from 'semver'
+
+const testVersions = [
+    '0.1.2',       '0.2.0',           '0.2.1',          '0.3.0',
+    '0.3.1',       '0.3.10',          '0.3.11',         '0.3.12',
+    '0.3.2',       '0.3.3',           '0.3.4',          '0.3.5',
+    '0.3.6',       '0.3.7',           '0.3.8',          '0.3.9',
+    '0.4.0',       '0.4.0-rc1',       '0.4.0-rc2',      '0.4.0-rc3',
+    '0.4.0-rc4',   '0.4.1',           '0.4.2',          '0.4.3',
+    '0.4.4',       '0.4.5',           '0.4.6',          '0.4.7',
+    '0.5.0',       '0.5.0-rc0',       '0.5.0-rc1',      '0.5.0-rc2',
+    '0.5.0-rc3',   '0.5.0-rc4',       '0.5.1',          '0.5.2',
+    '0.6.0',       '0.6.0-pre.alpha', '0.6.0-pre.beta', '0.6.0-rc1',
+    '0.6.0-rc2',   '0.6.0-rc3',       '0.6.1',          '0.6.2',
+    '0.6.3',       '0.6.4',           '0.7.0',          '0.7.0-alpha',
+    '0.7.0-beta',  '0.7.0-beta2',     '0.7.0-rc1',      '0.7.0-rc2',
+    '0.7.0-rc3',   '1.0.0',           '1.0.0-rc1',      '1.0.1',
+    '1.0.2',       '1.0.3',           '1.0.4',          '1.0.5',
+    '1.1.0',       '1.1.0-rc1',       '1.1.0-rc2',      '1.1.1',
+    '1.2.0',       '1.2.0-rc1',       '1.2.0-rc2',      '1.2.0-rc3',
+    '1.3.0-alpha', '1.3.0-rc1',       '1.3.0-rc2',      '1.3.0-rc3',
+    '1.3.0-rc4'
+]
+
+const toolDir = path.join(__dirname, 'runner', 'tools')
+const tempDir = path.join(__dirname, 'runner', 'temp')
+const fixtureDir = path.join(__dirname, 'fixtures')
+
+process.env['RUNNER_TOOL_CACHE'] = toolDir
+process.env['RUNNER_TEMP'] = tempDir
+
+import * as installer from '../src/installer'
+
+describe('version matching tests', () => {
+    describe('specific versions', () => {
+        it('Doesn\'t change the version when given a valid semver version', () => {
+            expect(installer.getJuliaVersion([], '1.0.5')).toEqual('1.0.5')
+            expect(installer.getJuliaVersion(['v1.0.5', 'v1.0.6'], '1.0.5')).toEqual('1.0.5')
+            expect(installer.getJuliaVersion(['v1.0.4', 'v1.0.5'], '1.0.5')).toEqual('1.0.5')
+            expect(installer.getJuliaVersion(['v1.0.4'], '1.0.5')).toEqual('1.0.5')
+            expect(installer.getJuliaVersion([], '1.3.0-alpha')).toEqual('1.3.0-alpha')
+            expect(installer.getJuliaVersion(['v1.2.0', 'v1.3.0-alpha', 'v1.3.0-rc1', 'v1.3.0'], '1.3.0-alpha')).toEqual('1.3.0-alpha')
+            expect(installer.getJuliaVersion([], '1.3.0-rc2')).toEqual('1.3.0-rc2')
+        })
+
+        it('Doesn\'t change the version when given `nightly`', () => {
+            expect(installer.getJuliaVersion([], 'nightly')).toEqual('nightly')
+            expect(installer.getJuliaVersion(testVersions, 'nightly')).toEqual('nightly')
+        })
+    })
+
+    describe('version ranges', () => {
+        it('Chooses the highest available version that matches the input', () => {
+            expect(installer.getJuliaVersion(testVersions, '1')).toEqual('1.2.0')
+            expect(installer.getJuliaVersion(testVersions, '1.0')).toEqual('1.0.5')
+            expect(installer.getJuliaVersion(testVersions, '^1.3.0-rc1')).toEqual('1.3.0-rc4')
+            expect(installer.getJuliaVersion(testVersions, '^1.2.0-rc1')).toEqual('1.2.0')
+        })
+    })
+
+    describe('node-semver behaviour', () => {
+        describe('Windows installer change', () => {
+            it('Correctly understands >1.4.0', () => {
+                expect(semver.gtr('1.4.0-rc1', '1.3', {includePrerelease: true})).toBeTruthy()
+                expect(semver.gtr('1.4.0-DEV', '1.3', {includePrerelease: true})).toBeTruthy()
+                expect(semver.gtr('1.3.1', '1.3', {includePrerelease: true})).toBeFalsy()
+                expect(semver.gtr('1.3.2-rc1', '1.3', {includePrerelease: true})).toBeFalsy()
+            })
+        })
+    })
+})
+
+describe('installer tests', () => {
+    beforeAll(async () => {
+        await io.rmRF(toolDir)
+        await io.rmRF(tempDir)
+    }, 100000)
+
+    afterAll(async () => {
+        try {
+            await io.rmRF(toolDir)
+            await io.rmRF(tempDir)
+        } catch {
+            console.log('Failed to remove test directories')
+        }
+    }, 100000)
+
+    describe('versions.json parsing', () => {
+        // Instead of downloading versions.json, use fixtures/versions.json
+        beforeEach(() => {
+            nock('https://julialang-s3.julialang.org').persist()
+                .get('/bin/versions.json')
+                .replyWithFile(200, path.join(fixtureDir, 'versions.json'))
+        })
+
+        afterEach(() => {
+            nock.cleanAll()
+            nock.enableNetConnect()
+        })
+
+        it('Extracts the list of available versions', async () => {
+            expect(await (await installer.getJuliaVersions(await installer.getJuliaVersionInfo())).sort()).toEqual(testVersions.sort())
+        })
+    })
+})

__tests__/main.test.ts

@@ -1,50 +0,0 @@
-import * as installer from '../src/installer'
-
-import * as semver from 'semver'
-
-const testVersions = ['v1.3.0-rc4', 'v1.3.0-rc3', 'v1.3.0-rc2', 'v1.0.5', 'v1.2.0', 'v1.3.0-rc1', 'v1.2.0-rc3', 'v1.3.0-alpha', 'v1.2.0-rc2', 'v1.2.0-rc1', 'v1.1.1', 'v1.0.4', 'v1.1.0', 'v1.1.0-rc2', 'v1.1.0-rc1', 'v1.0.3', 'v1.0.2', 'v1.0.1', 'v1.0.0']
-
-describe('installer tests', () => {
-    describe('version matching', () => {
-        describe('specific versions', () => {
-            it('Doesn\'t change the version when given a valid semver version', async () => {
-                expect(await installer.getJuliaVersion([], '1.0.5')).toEqual('1.0.5')
-                expect(await installer.getJuliaVersion(['v1.0.5', 'v1.0.6'], '1.0.5')).toEqual('1.0.5')
-                expect(await installer.getJuliaVersion(['v1.0.4', 'v1.0.5'], '1.0.5')).toEqual('1.0.5')
-                expect(await installer.getJuliaVersion(['v1.0.4'], '1.0.5')).toEqual('1.0.5')
-                expect(await installer.getJuliaVersion([], '1.3.0-alpha')).toEqual('1.3.0-alpha')
-                expect(await installer.getJuliaVersion(['v1.2.0', 'v1.3.0-alpha', 'v1.3.0-rc1', 'v1.3.0'], '1.3.0-alpha')).toEqual('1.3.0-alpha')
-                expect(await installer.getJuliaVersion([], '1.3.0-rc2')).toEqual('1.3.0-rc2')
-            })
-            it('Doesn\'t change the version when given `nightly`', async () => {
-                expect(await installer.getJuliaVersion([], 'nightly')).toEqual('nightly')
-                expect(await installer.getJuliaVersion(testVersions, 'nightly')).toEqual('nightly')
-            })
-        })
-        describe('version ranges', () => {
-            it('Chooses the highest available version that matches the input', async () => {
-                expect(await installer.getJuliaVersion(testVersions, '1')).toEqual('1.2.0')
-                expect(await installer.getJuliaVersion(testVersions, '1.0')).toEqual('1.0.5')
-                expect(await installer.getJuliaVersion(testVersions, '^1.3.0-rc1')).toEqual('1.3.0-rc4')
-                expect(await installer.getJuliaVersion(testVersions, '^1.2.0-rc1')).toEqual('1.2.0')
-            })
-        })
-        describe('invalid version range (#38)', () => {
-            it('Throws an error if a version range does not match any available version', () => {
-                expect(() => {
-                    installer.getJuliaVersion(['v1.5.0-rc1', 'v1.5.0-beta1', 'v1.4.2', 'v1.4.1', 'v1.4.0', 'v1.4.0-rc2', 'v1.4.0-rc1'], '1.6')
-                }).toThrowError()
-            })
-        })
-    })
-    describe('node-semver behaviour', () => {
-        describe('Windows installer change', () => {
-            it('Correctly understands >1.4.0', () => {
-                expect(semver.gtr('1.4.0-rc1', '1.3', {includePrerelease: true})).toBeTruthy()
-                expect(semver.gtr('1.4.0-DEV', '1.3', {includePrerelease: true})).toBeTruthy()
-                expect(semver.gtr('1.3.1', '1.3', {includePrerelease: true})).toBeFalsy()
-                expect(semver.gtr('1.3.2-rc1', '1.3', {includePrerelease: true})).toBeFalsy()
-            })
-        })
-    })
-})

lib/installer.js

@@ -18,15 +18,65 @@ 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 crypto = __importStar(require("crypto"));
 const fs = __importStar(require("fs"));
 const os = __importStar(require("os"));
 const path = __importStar(require("path"));
 const semver = __importStar(require("semver"));
+// Translations between actions input and Julia arch names
+const osMap = {
+    'win32': 'winnt',
+    'darwin': 'mac',
+    'linux': 'linux'
+};
+const archMap = {
+    'x86': 'i686',
+    'x64': 'x86_64'
+};
 // Store information about the environment
 const osPlat = os.platform(); // possible values: win32 (Windows), linux (Linux), darwin (macOS)
 core.debug(`platform: ${osPlat}`);
-// This is temporary until we have a better way of fetching releases (see #1, #4 for details)
-exports.juliaVersions = ['v1.5.2', 'v1.5.1', 'v1.5.0', 'v1.5.0-rc2', 'v1.5.0-rc1', 'v1.5.0-beta1', 'v1.4.2', 'v1.4.1', 'v1.4.0', 'v1.4.0-rc2', 'v1.4.0-rc1', 'v1.3.1', 'v1.3.0', 'v1.3.0-rc5', 'v1.3.0-rc4', 'v1.3.0-rc3', 'v1.3.0-rc2', 'v1.0.5', 'v1.2.0', 'v1.3.0-rc1', 'v1.2.0-rc3', 'v1.3.0-alpha', 'v1.2.0-rc2', 'v1.2.0-rc1', 'v1.1.1', 'v1.0.4', 'v1.1.0', 'v1.1.0-rc2', 'v1.1.0-rc1', 'v1.0.3', 'v1.0.2', 'v1.0.1', 'v1.0.0', 'v0.7.0', 'v1.0.0-rc1', 'v0.7.0-rc3', 'v0.7.0-rc2', 'v0.7.0-rc1', 'v0.7.0-beta2', 'v0.6.4', 'v0.7.0-beta', 'v0.7.0-alpha', 'v0.6.3', 'v0.6.2', 'v0.6.1', 'v0.6.0', 'v0.6.0-rc3', 'v0.6.0-rc2', 'v0.5.2', 'v0.6.0-rc1', 'v0.6.0-pre.beta', 'v0.5.1', 'v0.6.0-pre.alpha', 'v0.5.0', 'v0.4.7', 'v0.5.0-rc4', 'v0.5.0-rc3', 'v0.5.0-rc2', 'v0.5.0-rc1', 'v0.5.0-rc0', 'v0.4.6', 'v0.4.5', 'v0.4.4', 'v0.4.3', 'v0.4.2', 'v0.4.1', 'v0.3.12', 'v0.4.0', 'v0.4.0-rc4', 'v0.4.0-rc3', 'v0.4.0-rc2', 'v0.4.0-rc1', 'v0.3.11', 'v0.3.10', 'v0.3.9', 'v0.3.8', 'v0.3.7', 'v0.3.6', 'v0.3.5', 'v0.3.4', 'v0.3.3', 'v0.3.2', 'v0.3.1', 'v0.3.0', 'v0.3.0-rc4', 'v0.3.0-rc3', 'v0.3.0-rc2', 'v0.3.0-rc1', 'v0.2.0-rc1', 'v0.2.0-rc3', 'v0.2.0-rc4', 'v0.2.0', 'v0.2.0-rc2'];
+/**
+ * @returns The SHA256 checksum of a given file.
+ */
+function calculateChecksum(file) {
+    return __awaiter(this, void 0, void 0, function* () {
+        const hash = crypto.createHash('sha256');
+        const input = fs.createReadStream(file);
+        return new Promise((resolve, reject) => {
+            input.on('data', (chunk) => {
+                hash.update(chunk);
+            });
+            input.on('end', () => {
+                const digest = hash.digest('hex');
+                digest ? resolve(digest) : reject(new Error(`Could not calculate checksum of file ${file}: digest was empty.`));
+            });
+        });
+    });
+}
+/**
+ * @returns The content of the downloaded versions.json file as object.
+ */
+function getJuliaVersionInfo() {
+    return __awaiter(this, void 0, void 0, function* () {
+        const versionsFile = yield tc.downloadTool('https://julialang-s3.julialang.org/bin/versions.json');
+        return JSON.parse(fs.readFileSync(versionsFile).toString());
+    });
+}
+exports.getJuliaVersionInfo = getJuliaVersionInfo;
+/**
+ * @returns An array of all Julia versions available for download
+ */
+function getJuliaVersions(versionInfo) {
+    return __awaiter(this, void 0, void 0, function* () {
+        let versions = [];
+        for (let version in versionInfo) {
+            versions.push(version);
+        }
+        return versions;
+    });
+}
+exports.getJuliaVersions = getJuliaVersions;
 function getJuliaVersion(availableReleases, versionInput) {
     if (semver.valid(versionInput) == versionInput) {
         // versionInput is a valid version, use it directly
@@ -46,69 +96,67 @@ function getJuliaVersion(availableReleases, versionInput) {
     return version;
 }
 exports.getJuliaVersion = getJuliaVersion;
-function getMajorMinorVersion(version) {
-    return version.split('.').slice(0, 2).join('.');
-}
-function getDownloadURL(version, arch) {
-    let platform;
-    if (osPlat === 'win32') { // Windows
-        platform = 'winnt';
-    }
-    else if (osPlat === 'darwin') { // macOS
-        if (arch == 'x86') {
-            throw new Error('32-bit Julia is not available on macOS');
-        }
-        platform = 'mac';
-    }
-    else if (osPlat === 'linux') { // Linux
-        platform = 'linux';
-    }
-    else {
-        throw new Error(`Platform ${osPlat} is not supported`);
-    }
-    // nightlies
-    if (version == 'nightly') {
-        const baseURL = 'https://julialangnightlies-s3.julialang.org/bin';
-        return `${baseURL}/${platform}/${arch}/${getFileName('latest', arch)}`;
-    }
-    // normal versions
-    const baseURL = 'https://julialang-s3.julialang.org/bin';
-    const versionDir = getMajorMinorVersion(version);
-    return `${baseURL}/${platform}/${arch}/${versionDir}/${getFileName(version, arch)}`;
-}
-function getFileName(version, arch) {
+function getNightlyFileName(arch) {
     let versionExt, ext;
-    if (osPlat === 'win32') { // Windows
+    if (osPlat == 'win32') {
         versionExt = arch == 'x64' ? '-win64' : '-win32';
         ext = 'exe';
     }
-    else if (osPlat === 'darwin') { // macOS
+    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') { // Linux
-        if (version == 'latest') { // nightly version
-            versionExt = arch == 'x64' ? '-linux64' : '-linux32';
-        }
-        else {
-            versionExt = arch == 'x64' ? '-linux-x86_64' : '-linux-i686';
-        }
+    else if (osPlat === 'linux') {
+        versionExt = arch == 'x64' ? '-linux64' : '-linux32';
         ext = 'tar.gz';
     }
     else {
         throw new Error(`Platform ${osPlat} is not supported`);
     }
-    return `julia-${version}${versionExt}.${ext}`;
+    return `julia-latest${versionExt}.${ext}`;
 }
-function installJulia(version, arch) {
+function getFileInfo(versionInfo, version, arch) {
+    if (version == 'nightly') {
+        return null;
+    }
+    for (let file of versionInfo[version].files) {
+        if (file.os == osMap[osPlat] && file.arch == archMap[arch]) {
+            return file;
+        }
+    }
+    throw `Could not find ${archMap[arch]}/${version} binaries`;
+}
+exports.getFileInfo = getFileInfo;
+function getDownloadURL(fileInfo, version, arch) {
+    // nightlies
+    if (version == 'nightly') {
+        const baseURL = 'https://julialangnightlies-s3.julialang.org/bin';
+        return `${baseURL}/${osMap[osPlat]}/${arch}/${getNightlyFileName(arch)}`;
+    }
+    return fileInfo.url;
+}
+exports.getDownloadURL = getDownloadURL;
+function installJulia(versionInfo, version, arch) {
     return __awaiter(this, void 0, void 0, function* () {
         // Download Julia
-        const downloadURL = getDownloadURL(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);
+        // Verify checksum
+        if (version != '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}`);
+            }
+            core.debug(`Checksum of downloaded file matches expected checksum: ${checkSum}`);
+        }
+        else {
+            core.debug('Skipping checksum check for nightly binaries.');
+        }
         const tempInstallDir = fs.mkdtempSync(`julia-${arch}-${version}-`);
         // Install it
         switch (osPlat) {

lib/setup-julia.js

@@ -54,15 +54,16 @@ function run() {
             if (!arch) {
                 throw new Error(`Arch input must not be null`);
             }
-            const availableReleases = installer.juliaVersions;
+            const versionInfo = yield installer.getJuliaVersionInfo();
+            const availableReleases = yield installer.getJuliaVersions(versionInfo);
             const version = installer.getJuliaVersion(availableReleases, versionInput);
             core.debug(`selected Julia version: ${arch}/${version}`);
             // Search in cache
             let juliaPath;
             juliaPath = tc.find('julia', version, arch);
             if (!juliaPath) {
-                core.debug(`could not find Julia ${version} in cache`);
-                const juliaInstallationPath = yield installer.installJulia(version, arch);
+                core.debug(`could not find Julia ${arch}/${version} in cache`);
+                const juliaInstallationPath = yield installer.installJulia(versionInfo, version, arch);
                 // Add it to cache
                 juliaPath = yield tc.cacheDir(juliaInstallationPath, 'julia', version, arch);
                 core.debug(`added Julia to cache: ${juliaPath}`);

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "setup-julia",
-  "version": "1.3.1",
+  "version": "1.4.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -5461,6 +5461,36 @@
       "integrity": "sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ==",
       "dev": true
     },
+    "nock": {
+      "version": "11.7.2",
+      "resolved": "https://registry.npmjs.org/nock/-/nock-11.7.2.tgz",
+      "integrity": "sha512-7swr5bL1xBZ5FctyubjxEVySXOSebyqcL7Vy1bx1nS9IUqQWj81cmKjVKJLr8fHhtzI1MV8nyCdENA/cGcY1+Q==",
+      "dev": true,
+      "requires": {
+        "debug": "^4.1.0",
+        "json-stringify-safe": "^5.0.1",
+        "lodash": "^4.17.13",
+        "mkdirp": "^0.5.0",
+        "propagate": "^2.0.0"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
+          "dev": true,
+          "requires": {
+            "ms": "^2.1.1"
+          }
+        },
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
+        }
+      }
+    },
     "node-int64": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/node-int64/-/node-int64-0.4.0.tgz",
@@ -5821,6 +5851,12 @@
         "sisteransi": "^1.0.4"
       }
     },
+    "propagate": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/propagate/-/propagate-2.0.1.tgz",
+      "integrity": "sha512-vGrhOavPSTz4QVNuBNdcNXePNdNMaO1xj9yBeH1ScQPjk/rhg9sSlCXPhMkFuaNNW/syTvYqsnbIJxMBfRbbag==",
+      "dev": true
+    },
     "psl": {
       "version": "1.7.0",
       "resolved": "https://registry.npmjs.org/psl/-/psl-1.7.0.tgz",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "setup-julia",
-  "version": "1.3.1",
+  "version": "1.4.1",
   "private": true,
   "description": "setup Julia action",
   "main": "lib/setup-julia.js",
@@ -34,6 +34,7 @@
     "@zeit/ncc": "^0.22.0",
     "jest": "^24.8.0",
     "jest-circus": "^24.7.1",
+    "nock": "^11.7.2",
     "prettier": "^1.17.1",
     "ts-jest": "^26.0.0",
     "typescript": "^3.5.1"

src/installer.ts

@@ -2,18 +2,68 @@ import * as core from '@actions/core'
 import * as exec from '@actions/exec'
 import * as tc from '@actions/tool-cache'
 
+import * as crypto from 'crypto'
 import * as fs from 'fs'
 import * as os from 'os'
 import * as path from 'path'
 
 import * as semver from 'semver'
 
+// Translations between actions input and Julia arch names
+const osMap = {
+    'win32': 'winnt',
+    'darwin': 'mac',
+    'linux': 'linux'
+}
+const archMap = {
+    'x86': 'i686',
+    'x64': 'x86_64'
+}
+
 // Store information about the environment
 const osPlat = os.platform() // possible values: win32 (Windows), linux (Linux), darwin (macOS)
 core.debug(`platform: ${osPlat}`)
 
-// This is temporary until we have a better way of fetching releases (see #1, #4 for details)
-export const juliaVersions = ['v1.5.2', 'v1.5.1', 'v1.5.0', 'v1.5.0-rc2', 'v1.5.0-rc1', 'v1.5.0-beta1', 'v1.4.2', 'v1.4.1', 'v1.4.0', 'v1.4.0-rc2', 'v1.4.0-rc1', 'v1.3.1', 'v1.3.0', 'v1.3.0-rc5', 'v1.3.0-rc4', 'v1.3.0-rc3', 'v1.3.0-rc2', 'v1.0.5', 'v1.2.0', 'v1.3.0-rc1', 'v1.2.0-rc3', 'v1.3.0-alpha', 'v1.2.0-rc2', 'v1.2.0-rc1', 'v1.1.1', 'v1.0.4', 'v1.1.0', 'v1.1.0-rc2', 'v1.1.0-rc1', 'v1.0.3', 'v1.0.2', 'v1.0.1', 'v1.0.0', 'v0.7.0', 'v1.0.0-rc1', 'v0.7.0-rc3', 'v0.7.0-rc2', 'v0.7.0-rc1', 'v0.7.0-beta2', 'v0.6.4', 'v0.7.0-beta', 'v0.7.0-alpha', 'v0.6.3', 'v0.6.2', 'v0.6.1', 'v0.6.0', 'v0.6.0-rc3', 'v0.6.0-rc2', 'v0.5.2', 'v0.6.0-rc1', 'v0.6.0-pre.beta', 'v0.5.1', 'v0.6.0-pre.alpha', 'v0.5.0', 'v0.4.7', 'v0.5.0-rc4', 'v0.5.0-rc3', 'v0.5.0-rc2', 'v0.5.0-rc1', 'v0.5.0-rc0', 'v0.4.6', 'v0.4.5', 'v0.4.4', 'v0.4.3', 'v0.4.2', 'v0.4.1', 'v0.3.12', 'v0.4.0', 'v0.4.0-rc4', 'v0.4.0-rc3', 'v0.4.0-rc2', 'v0.4.0-rc1', 'v0.3.11', 'v0.3.10', 'v0.3.9', 'v0.3.8', 'v0.3.7', 'v0.3.6', 'v0.3.5', 'v0.3.4', 'v0.3.3', 'v0.3.2', 'v0.3.1', 'v0.3.0', 'v0.3.0-rc4', 'v0.3.0-rc3', 'v0.3.0-rc2', 'v0.3.0-rc1', 'v0.2.0-rc1', 'v0.2.0-rc3', 'v0.2.0-rc4', 'v0.2.0', 'v0.2.0-rc2']
+/**
+ * @returns The SHA256 checksum of a given file.
+ */
+async function calculateChecksum(file: string): Promise<string> {
+    const hash = crypto.createHash('sha256')
+    const input = fs.createReadStream(file)
+
+    return new Promise((resolve, reject) => {
+        input.on('data', (chunk) => {
+            hash.update(chunk)
+        })
+
+        input.on('end', () => {
+            const digest = hash.digest('hex')
+            digest ? resolve(digest) : reject(new Error(`Could not calculate checksum of file ${file}: digest was empty.`))
+        })
+    })
+}
+
+/**
+ * @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')
+
+    return JSON.parse(fs.readFileSync(versionsFile).toString())
+}
+
+/**
+ * @returns An array of all Julia versions available for download
+ */
+export async function getJuliaVersions(versionInfo): Promise<string[]> {
+    let versions: string[] = []
+
+    for (let version in versionInfo) {
+        versions.push(version)
+    }
+
+    return versions
+}
 
 export function getJuliaVersion(availableReleases: string[], versionInput: string): string {
     if (semver.valid(versionInput) == versionInput) {
@@ -38,71 +88,70 @@ export function getJuliaVersion(availableReleases: string[], versionInput: strin
     return version
 }
 
-function getMajorMinorVersion(version: string): string {
-    return version.split('.').slice(0, 2).join('.')
-}
-
-function getDownloadURL(version: string, arch: string): string {
-    let platform: string
-
-    if (osPlat === 'win32') { // Windows
-        platform = 'winnt'
-    } else if (osPlat === 'darwin') { // macOS
-        if (arch == 'x86') {
-            throw new Error('32-bit Julia is not available on macOS')
-        }
-        platform = 'mac'
-    } else if (osPlat === 'linux') { // Linux
-        platform = 'linux'
-    } else {
-        throw new Error(`Platform ${osPlat} is not supported`)
-    }
-
-    // nightlies
-    if (version == 'nightly') {
-        const baseURL = 'https://julialangnightlies-s3.julialang.org/bin'
-        return `${baseURL}/${platform}/${arch}/${getFileName('latest', arch)}`
-    }
-
-    // normal versions
-    const baseURL = 'https://julialang-s3.julialang.org/bin'
-    const versionDir = getMajorMinorVersion(version)
-
-    return `${baseURL}/${platform}/${arch}/${versionDir}/${getFileName(version, arch)}`
-}
-
-function getFileName(version: string, arch: string): string {
+function getNightlyFileName(arch: string): string {
     let versionExt: string, ext: string
 
-    if (osPlat === 'win32') { // Windows
+    if (osPlat == 'win32') {
         versionExt = arch == 'x64' ? '-win64' : '-win32'
         ext = 'exe'
-    } else if (osPlat === 'darwin') { // macOS
+    } 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') { // Linux
-        if (version == 'latest') { // nightly version
-            versionExt = arch == 'x64' ? '-linux64' : '-linux32'
-        } else {
-            versionExt = arch == 'x64' ? '-linux-x86_64' : '-linux-i686'
-        }
+    } else if (osPlat === 'linux') {
+        versionExt = arch == 'x64' ? '-linux64' : '-linux32'
         ext = 'tar.gz'
     } else {
         throw new Error(`Platform ${osPlat} is not supported`)
     }
 
-    return `julia-${version}${versionExt}.${ext}`
+    return `julia-latest${versionExt}.${ext}`
 }
 
-export async function installJulia(version: string, arch: string): Promise<string> {
+export function getFileInfo(versionInfo, version: string, arch: string) {
+    if (version == 'nightly') {
+        return null
+    }
+
+    for (let file of versionInfo[version].files) {
+        if (file.os == osMap[osPlat] && file.arch == archMap[arch]) {
+            return file
+        }
+    }
+
+    throw `Could not find ${archMap[arch]}/${version} binaries`
+}
+
+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)}`
+    }
+
+    return fileInfo.url
+}
+
+export async function installJulia(versionInfo, version: string, arch: string): Promise<string> {
     // Download Julia
-    const downloadURL = getDownloadURL(version, arch)
+    const fileInfo = getFileInfo(versionInfo, version, arch)
+    const downloadURL = getDownloadURL(fileInfo, version, arch)
     core.debug(`downloading Julia from ${downloadURL}`)
     const juliaDownloadPath = await tc.downloadTool(downloadURL)
 
+    // Verify checksum
+    if (version != '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}`)
+        }
+        core.debug(`Checksum of downloaded file matches expected checksum: ${checkSum}`)
+    } else {
+        core.debug('Skipping checksum check for nightly binaries.')
+    }
+
     const tempInstallDir = fs.mkdtempSync(`julia-${arch}-${version}-`)
 
     // Install it

src/setup-julia.ts

@@ -44,7 +44,8 @@ async function run() {
             throw new Error(`Arch input must not be null`)
         }
 
-        const availableReleases = installer.juliaVersions
+        const versionInfo = await installer.getJuliaVersionInfo()
+        const availableReleases = await installer.getJuliaVersions(versionInfo)
         const version = installer.getJuliaVersion(availableReleases, versionInput)
         core.debug(`selected Julia version: ${arch}/${version}`)
 
@@ -53,8 +54,8 @@ async function run() {
         juliaPath = tc.find('julia', version, arch)
 
         if (!juliaPath) {
-            core.debug(`could not find Julia ${version} in cache`)
-            const juliaInstallationPath = await installer.installJulia(version, arch);
+            core.debug(`could not find Julia ${arch}/${version} in cache`)
+            const juliaInstallationPath = await installer.installJulia(versionInfo, version, arch)
 
             // Add it to cache
             juliaPath = await tc.cacheDir(juliaInstallationPath, 'julia', version, arch)