Fix version in README examples

README.md

@@ -1,6 +1,14 @@
 # setup-julia Action
 
-This action sets up a Julia environment for use in actions by download a specified version of Julia and adding it to PATH.
+This action sets up a Julia environment for use in actions by downloading a specified version of Julia and adding it to PATH.
+
+## Table of Contents
+- [Table of Contents](#table-of-contents)
+- [Usage](#usage)
+- [Versioning](#versioning)
+- [Future plans & ideas](#future-plans--ideas)
+- [Words of caution](#words-of-caution)
+- [Licence info](#licence-info)
 
 ## Usage
 
@@ -13,7 +21,7 @@ Take a look at [github.com/exercism/julia](https://github.com/exercism/julia/pul
 ```yaml
 steps:
 - uses: actions/checkout@v1.0.0
-- uses: julia-actions/setup-julia@v0.1.0
+- uses: julia-actions/setup-julia@v0.2
   with:
     version: 1.0.4
 - run: julia -e 'println("Hello, World!")'
@@ -21,6 +29,8 @@ steps:
 
 ### Matrix Testing:
 
+#### 64-bit Julia only
+
 ```yaml
 jobs:
   test:
@@ -33,12 +43,82 @@ jobs:
     steps:
       - uses: actions/checkout@v1.0.0
       - name: "Set up Julia"
-        uses: julia-actions/setup-julia@v0.1.0
+        uses: julia-actions/setup-julia@v0.2
         with:
           version: ${{ matrix.julia-version }}
       - run: julia -e 'println("Hello, World!")'
 ```
 
+#### 32-bit Julia
+
+```yaml
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        julia-version: [1.0.4, 1.1.1, 1.2.0-rc3, 1.3.0-alpha]
+        julia-arch: [x64, x86]
+        os: [ubuntu-latest, windows-latest, macOS-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: "Set up Julia"
+        uses: julia-actions/setup-julia@v0.2
+        with:
+          version: ${{ matrix.julia-version }}
+          arch: ${{ matrix.julia-arch }}
+      - run: julia -e 'println("Hello, World!")'
+```
+
+Alternatively, you can include specific version and OS combinations that will use 32-bit Julia:
+
+```yaml
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        julia-version: [1.0.4, 1.1.1, 1.2.0-rc3, 1.3.0-alpha]
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+        # Additionally create a job using 32-bit Julia 1.0.4 on windows-latest
+        include:
+          - os: windows-latest
+            julia-version: [1.0.4]
+            julia-arch: x86
+    
+    steps:
+      - uses: actions/checkout@v1.0.0
+      - name: "Set up Julia"
+        uses: julia-actions/setup-julia@v0.2
+        with:
+          version: ${{ matrix.julia-version }}
+      - run: julia -e 'println("Hello, World!")'
+```
+
+## Versioning
+
+This action follows [GitHub's advice](https://help.github.com/en/articles/about-actions#versioning-your-action) on versioning actions, with an additional `latest` tag.
+
+If you don't want to deal with updating the version of the action, similiarly to how Travis CI handles it, use `latest` or major version branches.
+
+It's unlikely, but not impossible, that there will be breaking changes post-v1.0.0 unless a new major version of Julia is introduced.
+
+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@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
+```
+
 ## Future plans & ideas
 
 In no particular order:
@@ -47,9 +127,8 @@ In no particular order:
 * Check if a cached version of Julia is available instead of installing it everytime CI runs.
 * Add version shortcuts like `1.x`, `1.1.x`, `latest` and `lts`.
 * Add support for nightly Julia builds.
-* Support 32-bit Julia on 64-bit windows.
 * Write some unit tests for the action.
-* Figure out the best way to handle versioning.
+* Add CI script that checks if tags have been updated on release.
 * Hash and signature checks.
 
 ### Other Julia-related actions:
@@ -67,7 +146,7 @@ This action will likely be updated quite frequently in the near future. I'm shar
 
 **DO NOT USE THIS AS YOUR ONLY FORM OF CI** (yet).
 
-Unfortunately, because non-container actions must use JavaScript/TypeScript as scripting language, `npm` is involved. The dependencies are vendored but this action relies 100% on GitHub to audit the dependencies they add to their action toolkit.
+Unfortunately, because non-container actions must use JavaScript/TypeScript as scripting language, `npm` is involved. The published action only uses the toolkit-dependencies maintained by GitHub but, as usual with `npm`, these load over 50 transitive dependencies. If this causes issues with your security policies, you might want to fork the action, so that you can audit and lock exact versions of all direct and transitive dependencies.
 
 ## Licence info
 Parts of this software have been derived from the `setup-go` [action](https://github.com/actions/setup-go) and the [JavaScript Action Template](https://github.com/actions/javascript-template), both released by GitHub under the MIT licence.

action.yml

@@ -5,6 +5,10 @@ inputs:
   version:
     description: 'The Julia version to download (if necessary) and use. Example: 1.0.4'
     default: '1.0.4'
+  arch:
+    description: 'Architecture of the Julia binaries. Defaults to x64.'
+    required: false
+    default: 'x64'
 runs:
   using: 'node12'
   main: 'lib/setup-julia.js'

docs/release-checklist.md

@@ -0,0 +1,16 @@
+# Release checklist
+
+Version: `1.b.c`
+
+- [x] Create release branch `releases/v1.b.c`
+  - [x] Unignore `node_modules/` by adding `!` in front in `.gitignore`
+  - [x] Delete `node_modules/`
+  - [x] Install production dependencies: `npm install --production`
+  - [x] Add `node_modules/`: `git add node_modules`
+  - [x] Commit & push action: `git commit -a -m "Publish v1.b.c."`, then `git push`
+- [x] Test the action with an example package
+- [x] Create tags
+  - [x] `v1.b.c` pointing at the last commit in `releases/v1.b.c`
+  - [x] `latest` pointing at the latest version of the highest major version
+  - [x] `v1` pointing at the latest `1.x.x` version
+- [x] Push tags

lib/setup-julia.js

@@ -26,39 +26,42 @@ core.debug(`platform: ${osPlat}`);
 function getMajorMinorVersion(version) {
     return version.split('.').slice(0, 2).join('.');
 }
-function getDownloadURL(version) {
+function getDownloadURL(version, arch) {
     const baseURL = 'https://julialang-s3.julialang.org/bin';
-    let platform, arch;
+    let platform;
     const versionDir = getMajorMinorVersion(version);
     if (osPlat === 'win32') { // Windows
         platform = 'winnt';
-        arch = 'x64';
     }
     else if (osPlat === 'darwin') { // macOS
+        if (arch == 'x86') {
+            throw '32-bit Julia is not available on macOS';
+        }
         platform = 'mac';
-        arch = 'x64';
     }
     else if (osPlat === 'linux') { // Linux
         platform = 'linux';
-        arch = 'x64';
     }
     else {
         throw `Platform ${osPlat} is not supported`;
     }
-    return `${baseURL}/${platform}/${arch}/${versionDir}/${getFileName(version)}`;
+    return `${baseURL}/${platform}/${arch}/${versionDir}/${getFileName(version, arch)}`;
 }
-function getFileName(version) {
+function getFileName(version, arch) {
     let versionExt, ext;
     if (osPlat === 'win32') { // Windows
-        versionExt = '-win64';
+        versionExt = arch == 'x64' ? '-win64' : '-win32';
         ext = 'exe';
     }
     else if (osPlat === 'darwin') { // macOS
+        if (arch == 'x86') {
+            throw '32-bit Julia is not available on macOS';
+        }
         versionExt = '-mac64';
         ext = 'dmg';
     }
     else if (osPlat === 'linux') { // Linux
-        versionExt = '-linux-x86_64';
+        versionExt = arch == 'x64' ? '-linux-x86_64' : '-linux-i686';
         ext = 'tar.gz';
     }
     else {
@@ -66,34 +69,50 @@ function getFileName(version) {
     }
     return `julia-${version}${versionExt}.${ext}`;
 }
+function installJulia(version, arch) {
+    return __awaiter(this, void 0, void 0, function* () {
+        // Download Julia
+        const downloadURL = getDownloadURL(version, arch);
+        core.debug(`downloading Julia from ${downloadURL}`);
+        const juliaDownloadPath = yield tc.downloadTool(downloadURL);
+        // Install it
+        switch (osPlat) {
+            case 'linux':
+                const juliaExtractedFolder = yield tc.extractTar(juliaDownloadPath);
+                return path.join(juliaExtractedFolder, `julia-${version}`);
+            case 'win32':
+                const juliaInstallationPath = path.join('C:', 'Julia');
+                yield exec.exec('powershell', ['-Command', `Start-Process -FilePath ${juliaDownloadPath} -ArgumentList "/S /D=${juliaInstallationPath}" -NoNewWindow -Wait`]);
+                return juliaInstallationPath;
+            case 'darwin':
+                yield exec.exec('hdiutil', ['attach', juliaDownloadPath]);
+                return `/Volumes/Julia-${version}/Julia-${getMajorMinorVersion(version)}.app/Contents/Resources/julia`;
+            default:
+                throw `Platform ${osPlat} is not supported`;
+        }
+    });
+}
 function run() {
     return __awaiter(this, void 0, void 0, function* () {
         try {
             const version = core.getInput('version');
-            core.debug(`selected Julia version: ${version}`);
-            // Download Julia
-            const downloadURL = getDownloadURL(version);
-            core.debug(`download Julia from ${downloadURL}`);
-            const juliaDownloadPath = yield tc.downloadTool(downloadURL);
-            // Install Julia
-            if (osPlat === 'linux') { // Linux
-                const juliaExtractedFolder = yield tc.extractTar(juliaDownloadPath);
-                const juliaCachedPath = yield tc.cacheDir(juliaExtractedFolder, 'julia', version);
-                const juliaPath = path.join(juliaCachedPath, `julia-${version}`);
-                core.addPath(path.join(juliaPath, 'bin'));
+            const arch = core.getInput('arch');
+            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 installJulia(version, arch);
+                // Add it to cache
+                juliaPath = yield tc.cacheDir(juliaInstallationPath, 'julia', version, arch);
+                core.debug(`added Julia to cache: ${juliaPath}`);
             }
-            else if (osPlat === 'win32') { // Windows
-                // Install Julia in C:\Julia
-                const juliaInstallationPath = path.join('C:', 'Julia');
-                yield exec.exec('powershell', ['-Command', `Start-Process -FilePath ${juliaDownloadPath} -ArgumentList "/S /D=${juliaInstallationPath}" -NoNewWindow -Wait`]);
-                const juliaCachedPath = yield tc.cacheDir(juliaInstallationPath, 'julia', version);
-                core.addPath(path.join(juliaCachedPath, 'bin'));
-            }
-            else if (osPlat === 'darwin') { // macOS
-                yield exec.exec('hdiutil', ['attach', juliaDownloadPath]);
-                const juliaCachedPath = yield tc.cacheDir(`/Volumes/Julia-${version}/Julia-${getMajorMinorVersion(version)}.app/Contents/Resources/julia`, 'julia', version);
-                core.addPath(path.join(juliaCachedPath, 'bin'));
+            else {
+                core.debug(`using cached version of Julia: ${juliaPath}`);
             }
+            // Add it to PATH
+            core.addPath(path.join(juliaPath, 'bin'));
             // Test if Julia has been installed by showing versioninfo()
             yield exec.exec('julia', ['-e', 'using InteractiveUtils; versioninfo()']);
         }

src/setup-julia.ts

@@ -13,38 +13,41 @@ function getMajorMinorVersion(version: string): string {
     return version.split('.').slice(0, 2).join('.')
 }
 
-function getDownloadURL(version: string): string {
+function getDownloadURL(version: string, arch: string): string {
     const baseURL = 'https://julialang-s3.julialang.org/bin'
-    let platform: string, arch: string
+    let platform: string
     const versionDir = getMajorMinorVersion(version)
 
     if (osPlat === 'win32') { // Windows
         platform = 'winnt'
-        arch = 'x64'
     } else if (osPlat === 'darwin') { // macOS
+        if (arch == 'x86') {
+            throw '32-bit Julia is not available on macOS'
+        }
         platform = 'mac'
-        arch = 'x64'
     } else if (osPlat === 'linux') { // Linux
         platform = 'linux'
-        arch = 'x64'
     } else {
         throw `Platform ${osPlat} is not supported`
     }
 
-    return `${baseURL}/${platform}/${arch}/${versionDir}/${getFileName(version)}`
+    return `${baseURL}/${platform}/${arch}/${versionDir}/${getFileName(version, arch)}`
 }
 
-function getFileName(version: string): string {
+function getFileName(version: string, arch: string): string {
     let versionExt: string, ext: string
 
     if (osPlat === 'win32') { // Windows
-        versionExt = '-win64'
+        versionExt = arch == 'x64' ? '-win64' : '-win32'
         ext = 'exe'
     } else if (osPlat === 'darwin') { // macOS
+        if (arch == 'x86') {
+            throw '32-bit Julia is not available on macOS'
+        }
         versionExt = '-mac64'
         ext = 'dmg'
     } else if (osPlat === 'linux') { // Linux
-        versionExt = '-linux-x86_64'
+        versionExt = arch == 'x64' ? '-linux-x86_64' : '-linux-i686'
         ext = 'tar.gz'
     } else {
         throw `Platform ${osPlat} is not supported`
@@ -53,36 +56,53 @@ function getFileName(version: string): string {
     return `julia-${version}${versionExt}.${ext}`
 }
 
+async function installJulia(version: string, arch: string): Promise<string> {
+    // Download Julia
+    const downloadURL = getDownloadURL(version, arch)
+    core.debug(`downloading Julia from ${downloadURL}`)
+    const juliaDownloadPath = await tc.downloadTool(downloadURL)
+
+    // Install it
+    switch (osPlat) {
+        case 'linux':
+            const juliaExtractedFolder = await tc.extractTar(juliaDownloadPath)
+            return path.join(juliaExtractedFolder, `julia-${version}`)
+        case 'win32':
+            const juliaInstallationPath = path.join('C:', 'Julia')
+            await exec.exec('powershell', ['-Command', `Start-Process -FilePath ${juliaDownloadPath} -ArgumentList "/S /D=${juliaInstallationPath}" -NoNewWindow -Wait`])
+            return juliaInstallationPath
+        case 'darwin':
+            await exec.exec('hdiutil', ['attach', juliaDownloadPath])
+            return `/Volumes/Julia-${version}/Julia-${getMajorMinorVersion(version)}.app/Contents/Resources/julia`
+        default:
+            throw `Platform ${osPlat} is not supported`
+    }
+}
+
 async function run() {
     try {
         const version = core.getInput('version')
-        core.debug(`selected Julia version: ${version}`)
+        const arch = core.getInput('arch')
+        core.debug(`selected Julia version: ${arch}/${version}`)
 
-        // Download Julia
-        const downloadURL = getDownloadURL(version)
-        core.debug(`download Julia from ${downloadURL}`)
-        const juliaDownloadPath = await tc.downloadTool(downloadURL)
+        // Search in cache
+        let juliaPath: string;
+        juliaPath = tc.find('julia', version, arch)
 
-        // Install Julia
-        if (osPlat === 'linux') { // Linux
-            const juliaExtractedFolder = await tc.extractTar(juliaDownloadPath)
-            const juliaCachedPath = await tc.cacheDir(juliaExtractedFolder, 'julia', version)
-            const juliaPath = path.join(juliaCachedPath, `julia-${version}`)
-            core.addPath(path.join(juliaPath, 'bin'))
-        
-        } else if (osPlat === 'win32') { // Windows
-            // Install Julia in C:\Julia
-            const juliaInstallationPath = path.join('C:', 'Julia')
-            await exec.exec('powershell', ['-Command', `Start-Process -FilePath ${juliaDownloadPath} -ArgumentList "/S /D=${juliaInstallationPath}" -NoNewWindow -Wait`])
-            const juliaCachedPath = await tc.cacheDir(juliaInstallationPath, 'julia', version)
-            core.addPath(path.join(juliaCachedPath, 'bin'))
-        
-        } else if (osPlat === 'darwin') { // macOS
-            await exec.exec('hdiutil', ['attach', juliaDownloadPath])
-            const juliaCachedPath = await tc.cacheDir(`/Volumes/Julia-${version}/Julia-${getMajorMinorVersion(version)}.app/Contents/Resources/julia`, 'julia', version)
-            core.addPath(path.join(juliaCachedPath, 'bin'))
+        if (!juliaPath) {
+            core.debug(`could not find Julia ${version} in cache`)
+            const juliaInstallationPath = await installJulia(version, arch);
+
+            // Add it to cache
+            juliaPath = await tc.cacheDir(juliaInstallationPath, 'julia', version, arch)
+            core.debug(`added Julia to cache: ${juliaPath}`)
+        } else {
+            core.debug(`using cached version of Julia: ${juliaPath}`)
         }
 
+        // Add it to PATH
+        core.addPath(path.join(juliaPath, 'bin'))
+        
         // Test if Julia has been installed by showing versioninfo()
         await exec.exec('julia', ['-e', 'using InteractiveUtils; versioninfo()'])
     } catch (error) {