Update action to hybrid multi platform

dist/src/setup-python.js

@@ -0,0 +1,52 @@
+const core = require("@actions/core");
+const tc = require("@actions/tool-cache");
+const path = require("path");
+const semver = require("semver");
+
+/**
+ * Setup for Python from the GitHub Actions tool cache
+ * Converted from https://github.com/actions/setup-python
+ *
+ * @param {string} versionSpec version of Python
+ * @param {string} arch architecture (x64|x32)
+ */
+let setupPython = function(versionSpec, arch) {
+  return new Promise((resolve, reject) => {
+    const IS_WINDOWS = process.platform === "win32";
+
+    // Find the version of Python we want in the tool cache
+    const installDir = tc.find("Python", versionSpec, arch);
+    core.debug(`installDir: ${installDir}`);
+
+    // Set paths
+    core.exportVariable("pythonLocation", installDir);
+    core.addPath(installDir);
+    if (IS_WINDOWS) {
+      core.addPath(path.join(installDir, "Scripts"));
+    } else {
+      core.addPath(path.join(installDir, "bin"));
+    }
+
+    if (IS_WINDOWS) {
+      // Add --user directory
+      // `installDir` from tool cache should look like $AGENT_TOOLSDIRECTORY/Python/<semantic version>/x64/
+      // So if `findLocalTool` succeeded above, we must have a conformant `installDir`
+      const version = path.basename(path.dirname(installDir));
+      const major = semver.major(version);
+      const minor = semver.minor(version);
+
+      const userScriptsDir = path.join(
+        process.env["APPDATA"] || "",
+        "Python",
+        `Python${major}${minor}`,
+        "Scripts"
+      );
+      core.addPath(userScriptsDir);
+    }
+    // On Linux and macOS, pip will create the --user directory and add it to PATH as needed.
+
+    resolve();
+  });
+};
+
+module.exports = setupPython;