feat!: multi-version support

.github/workflows/test.yml

@@ -11,7 +11,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     name: test-all # PRs can require just this job to pass, regardless of matrix changes below
-    needs: [test_matrix]
+    needs: [test_matrix, test_multi]
     steps:
       - run: echo "Test-matrix successful" # anything with zero exit code
 
@@ -20,7 +20,7 @@ jobs:
       matrix:
         os: [macos-15-intel, ubuntu-latest] # arm64 and Windows aren't supported
         solc: ['0.8.30', '0.8.25'] # arbitrary, but different
-    name: setup-solc
+    name: setup-solc_${{matrix.solc}}_${{matrix.os}}
     runs-on: ${{ matrix.os }}
     steps:
         - uses: actions/checkout@v5
@@ -32,3 +32,21 @@ jobs:
 
         - name: Check version
           run: solc --version | grep "${{matrix.solc}}"
+
+  test_multi:
+    name: setup-solc-multi-version
+    runs-on: ubuntu-latest
+    steps:
+        - uses: actions/checkout@v5
+
+        - id: setup
+          uses: ./
+          with:
+            version: 0.8.30
+            versions: '0.8.30,0.8.29'
+
+        - name: Check versions
+          run: |
+            solc --version | grep 0.8.30;
+            solc-v0.8.30 --version | grep 0.8.30;
+            solc-v0.8.29 --version | grep 0.8.29;

README.md

@@ -10,13 +10,17 @@ jobs:
     name: print-solc-version
     runs-on: ubuntu-latest
     steps:
-        - uses: arr4n/setup-solc@main # TODO: use a commit hash for better security
+        - uses: arr4n/setup-solc@v0.2.0
           with:
-            version: 0.8.30
+            version: 0.8.30 # installed as solc
+            versions: '0.8.25,0.8.28' # installed as solc-v0.8.25 and solc-v0.8.28
 
-        - run: solc --version
+        - run: |
+          solc --version;
+          solc-v0.8.25 --version;
+          solc-v0.8.28 --version;
 ```
 
-The specified version MUST be a specific semver (without a "v" prefix).
+The specified version(s) MUST be specific semver (without a "v" prefix).
 Caret (^), tilde (~) and keyword (e.g. "latest") versions are deliberately unsupported because blockchain development requires precision.
 

action.yml

@@ -5,11 +5,11 @@ branding:
   color: blue
 inputs:
   version:
-    description: 'Specific solc version'
-    required: true
-outputs:
-  solc:
-    description: 'Path to solc binary'
+    description: 'Version to be installed as `solc`'
+    default: ''
+  versions:
+    description: 'Comma-separated list of versions to be installed as `solc-v<ver>'
+    default: ''
 runs:
   using: 'node20'
   main: 'dist/index.js'

dist/index.js

@@ -29819,9 +29819,6 @@ function requireToolCache () {
 var toolCacheExports = requireToolCache();
 
 try {
-    const version = coreExports.getInput('version');
-    coreExports.info(`Setting up solc version ${version}`);
-
     if (process.arch != 'x64') {
         throw Error(`Unsupported architecture ${process.arch}`)
     }
@@ -29839,27 +29836,57 @@ try {
     }
 
     const constructURL = (fileName) => `https://binaries.soliditylang.org/${pathPrefix}/${fileName}`;
-
     const list = await fetch(constructURL('list.json')).then(res => res.json());
 
-    const build = list.builds.find((build) => build.version == version);
-    if (build === undefined) {
-        throw Error(`Version ${version} not found`);
-    }
-
-    const downloaded = await toolCacheExports.downloadTool(constructURL(build.path));
-
     const destDir = path.join(process.cwd(), 'setup-solc_downloads');
     await fs.mkdir(destDir);
-    const solc = path.join(destDir, 'solc');
-    await fs.rename(downloaded, solc);
-    await fs.chmod(solc, 0o555);
-
     coreExports.addPath(destDir);
-    coreExports.setOutput('solc', solc);
-    coreExports.info(`solc at ${solc}`);
+
+    for (const [version, outs] of Object.entries(parseVersionInputs())) {
+        coreExports.info(`Setting up solc version ${version}`);
+
+        const build = list.builds.find((build) => build.version == version);
+        if (build === undefined) {
+            throw Error(`Version ${version} not found`);
+        }
+
+        const downloaded = await toolCacheExports.downloadTool(constructURL(build.path));
+        await fs.chmod(downloaded, 0o555);
+
+        await Promise.all(
+            outs.map((out) => fs.copyFile(
+                downloaded,
+                path.join(destDir, out)
+            ))
+        );
+        console.info(`${version} at ${outs}`);
+    }
 
 } catch (error) {
     coreExports.setFailed(error.message);
 }
+
+function parseVersionInputs() {
+    let versions = {};
+
+    const v = coreExports.getInput('version');
+    if (v != '') {
+        versions[v] = ['solc'];
+    }
+
+    const multi = coreExports.getInput('versions');
+    if (multi == '') {
+        return versions
+    }
+    multi.split(',').forEach((v) => {
+        const out = `solc-v${v}`;
+        if (v in versions) {
+            versions[v].push(out);
+        } else {
+            versions[v] = [out];
+        }
+    });
+
+    return versions;
+}
 //# sourceMappingURL=index.js.map

package.json

@@ -1,8 +1,9 @@
 {
   "name": "setup-solc",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "type": "module",
   "author": "github.com/arr4n",
+  "license": "MIT",
   "description": "A GitHub action for installing the Solidity compiler, solc.",
   "dependencies": {
     "@actions/core": "^1.11.1",

src/index.js

@@ -4,9 +4,6 @@ import * as core from "@actions/core";
 import * as tc from "@actions/tool-cache";
 
 try {
-    const version = core.getInput('version');
-    core.info(`Setting up solc version ${version}`);
-
     if (process.arch != 'x64') {
         throw Error(`Unsupported architecture ${process.arch}`)
     }
@@ -24,26 +21,56 @@ try {
     }
 
     const constructURL = (fileName) => `https://binaries.soliditylang.org/${pathPrefix}/${fileName}`;
-
     const list = await fetch(constructURL('list.json')).then(res => res.json());
 
-    const build = list.builds.find((build) => build.version == version);
-    if (build === undefined) {
-        throw Error(`Version ${version} not found`);
-    }
-
-    const downloaded = await tc.downloadTool(constructURL(build.path));
-
     const destDir = path.join(process.cwd(), 'setup-solc_downloads');
     await fs.mkdir(destDir);
-    const solc = path.join(destDir, 'solc')
-    await fs.rename(downloaded, solc);
-    await fs.chmod(solc, 0o555);
-
     core.addPath(destDir);
-    core.setOutput('solc', solc);
-    core.info(`solc at ${solc}`);
+
+    for (const [version, outs] of Object.entries(parseVersionInputs())) {
+        core.info(`Setting up solc version ${version}`);
+
+        const build = list.builds.find((build) => build.version == version);
+        if (build === undefined) {
+            throw Error(`Version ${version} not found`);
+        }
+
+        const downloaded = await tc.downloadTool(constructURL(build.path));
+        await fs.chmod(downloaded, 0o555);
+
+        await Promise.all(
+            outs.map((out) => fs.copyFile(
+                downloaded,
+                path.join(destDir, out)
+            ))
+        );
+        console.info(`${version} at ${outs}`);
+    }
 
 } catch (error) {
     core.setFailed(error.message)
 }
+
+function parseVersionInputs() {
+    let versions = {};
+
+    const v = core.getInput('version');
+    if (v != '') {
+        versions[v] = ['solc'];
+    }
+
+    const multi = core.getInput('versions');
+    if (multi == '') {
+        return versions
+    }
+    multi.split(',').forEach((v) => {
+        const out = `solc-v${v}`;
+        if (v in versions) {
+            versions[v].push(out);
+        } else {
+            versions[v] = [out];
+        }
+    })
+
+    return versions;
+}