add logic to install multiple python versions

Author: dmitry-shibanov

dist/setup/index.js

@@ -66797,12 +66797,12 @@ function cacheDependencies(cache, pythonVersion) {
     });
 }
 function resolveVersionInput() {
-    let version = core.getInput('python-version');
+    let version = core.getMultilineInput('python-version');
     let versionFile = core.getInput('python-version-file');
     if (version && versionFile) {
         core.warning('Both python-version and python-version-file inputs are specified, only python-version will be used.');
     }
-    if (version) {
+    if (version.length) {
         return version;
     }
     if (versionFile) {
@@ -66834,21 +66834,30 @@ function run() {
         }
         core.debug(`Python is expected to be installed into ${process.env['RUNNER_TOOL_CACHE']}`);
         try {
-            const version = resolveVersionInput();
+            let versions;
+            const resolvedVersionInput = resolveVersionInput();
             const checkLatest = core.getBooleanInput('check-latest');
-            if (version) {
-                let pythonVersion;
-                const arch = core.getInput('architecture') || os.arch();
-                const updateEnvironment = core.getBooleanInput('update-environment');
-                if (isPyPyVersion(version)) {
-                    const installed = yield finderPyPy.findPyPyVersion(version, arch, updateEnvironment, checkLatest);
-                    pythonVersion = `${installed.resolvedPyPyVersion}-${installed.resolvedPythonVersion}`;
-                    core.info(`Successfully set up PyPy ${installed.resolvedPyPyVersion} with Python (${installed.resolvedPythonVersion})`);
-                }
-                else {
-                    const installed = yield finder.useCpythonVersion(version, arch, updateEnvironment, checkLatest);
-                    pythonVersion = installed.version;
-                    core.info(`Successfully set up ${installed.impl} (${pythonVersion})`);
+            if (Array.isArray(resolvedVersionInput)) {
+                versions = resolveVersionInput;
+            }
+            else {
+                versions = [resolveVersionInput];
+            }
+            if (versions.length) {
+                let pythonVersion = '';
+                for (const version of versions) {
+                    const arch = core.getInput('architecture') || os.arch();
+                    const updateEnvironment = core.getBooleanInput('update-environment');
+                    if (isPyPyVersion(version)) {
+                        const installed = yield finderPyPy.findPyPyVersion(version, arch, updateEnvironment, checkLatest);
+                        pythonVersion = `${installed.resolvedPyPyVersion}-${installed.resolvedPythonVersion}`;
+                        core.info(`Successfully set up PyPy ${installed.resolvedPyPyVersion} with Python (${installed.resolvedPythonVersion})`);
+                    }
+                    else {
+                        const installed = yield finder.useCpythonVersion(version, arch, updateEnvironment, checkLatest);
+                        pythonVersion = installed.version;
+                        core.info(`Successfully set up ${installed.impl} (${pythonVersion})`);
+                    }
                 }
                 const cache = core.getInput('cache');
                 if (cache && utils_1.isCacheFeatureAvailable()) {

src/setup-python.ts

@@ -22,8 +22,8 @@ async function cacheDependencies(cache: string, pythonVersion: string) {
   await cacheDistributor.restoreCache();
 }
 
-function resolveVersionInput(): string {
-  let version = core.getInput('python-version');
+function resolveVersionInput(): string | string[] {
+  let version: string | string[] = core.getMultilineInput('python-version');
   let versionFile = core.getInput('python-version-file');
 
   if (version && versionFile) {
@@ -32,7 +32,7 @@ function resolveVersionInput(): string {
     );
   }
 
-  if (version) {
+  if (version.length) {
     return version;
   }
 
@@ -75,35 +75,43 @@ async function run() {
     `Python is expected to be installed into ${process.env['RUNNER_TOOL_CACHE']}`
   );
   try {
-    const version = resolveVersionInput();
+    let versions: string[];
+    const resolvedVersionInput = resolveVersionInput();
     const checkLatest = core.getBooleanInput('check-latest');
 
-    if (version) {
-      let pythonVersion: string;
-      const arch: string = core.getInput('architecture') || os.arch();
-      const updateEnvironment = core.getBooleanInput('update-environment');
-      if (isPyPyVersion(version)) {
-        const installed = await finderPyPy.findPyPyVersion(
-          version,
-          arch,
-          updateEnvironment,
-          checkLatest
-        );
-        pythonVersion = `${installed.resolvedPyPyVersion}-${installed.resolvedPythonVersion}`;
-        core.info(
-          `Successfully set up PyPy ${installed.resolvedPyPyVersion} with Python (${installed.resolvedPythonVersion})`
-        );
-      } else {
-        const installed = await finder.useCpythonVersion(
-          version,
-          arch,
-          updateEnvironment,
-          checkLatest
-        );
-        pythonVersion = installed.version;
-        core.info(`Successfully set up ${installed.impl} (${pythonVersion})`);
-      }
+    if (Array.isArray(resolvedVersionInput)) {
+      versions = (resolveVersionInput as unknown) as string[];
+    } else {
+      versions = [(resolveVersionInput as unknown) as string];
+    }
 
+    if (versions.length) {
+      let pythonVersion = '';
+      for (const version of versions) {
+        const arch: string = core.getInput('architecture') || os.arch();
+        const updateEnvironment = core.getBooleanInput('update-environment');
+        if (isPyPyVersion(version)) {
+          const installed = await finderPyPy.findPyPyVersion(
+            version,
+            arch,
+            updateEnvironment,
+            checkLatest
+          );
+          pythonVersion = `${installed.resolvedPyPyVersion}-${installed.resolvedPythonVersion}`;
+          core.info(
+            `Successfully set up PyPy ${installed.resolvedPyPyVersion} with Python (${installed.resolvedPythonVersion})`
+          );
+        } else {
+          const installed = await finder.useCpythonVersion(
+            version,
+            arch,
+            updateEnvironment,
+            checkLatest
+          );
+          pythonVersion = installed.version;
+          core.info(`Successfully set up ${installed.impl} (${pythonVersion})`);
+        }
+      }
       const cache = core.getInput('cache');
       if (cache && isCacheFeatureAvailable()) {
         await cacheDependencies(cache, pythonVersion);