Fix Tool Path handling for self-hosted runners

README.md

@@ -422,27 +422,13 @@ If you are experiencing problems while configuring Python on your self-hosted ru
 
 ### Linux
 
-- The Python packages that are downloaded from `actions/python-versions` are originally compiled from source in `/opt/hostedtoolcache/` with the [--enable-shared](https://github.com/actions/python-versions/blob/94f04ae6806c6633c82db94c6406a16e17decd5c/builders/ubuntu-python-builder.psm1#L35) flag, which makes them non-relocatable.
-- By default runner downloads and install the tools to `/opt/hostedtoolcache`. The environment variable called `AGENT_TOOLSDIRECTORY` can be set to change this location.
-  - In the same shell that your runner is using, type `export AGENT_TOOLSDIRECTORY=/opt/hostedtoolcache`.
-  - A more permanent way of setting the environment variable is to create a `.env` file in the same directory as your runner and to add `AGENT_TOOLSDIRECTORY=/opt/hostedtoolcache`. This ensures the variable is always set if your runner is configured as a service.
-- Create a directory called `hostedtoolcache` inside `/opt`.
-- The user starting the runner must have write permission to the `/opt/hostedtoolcache` directory. It is not possible to start the Linux runner with `sudo` and the `/opt` directory usually requires root privileges to write to. Check the current user and group that the runner belongs to by typing `ls -l` inside the runners root directory.
-- The runner can be granted write access to the `/opt/hostedtoolcache` directory using a few techniques:
-  - The user starting the runner is the owner, and the owner has write permission.
-  - The user starting the runner is in the owning group, and the owning group has write permission.
-  - All users have write permission.
-- One quick way to grant access is to change the user and group of `/opt/hostedtoolcache` to be the same as the runners using `chown`.
-    - `sudo chown runner-user:runner-group /opt/hostedtoolcache/`.
-- If your runner is configured as a service and you run into problems, make sure the user that the service is running as is correct. For more information, you can [check the status of your self-hosted runner](https://help.github.com/en/actions/hosting-your-own-runners/configuring-the-self-hosted-runner-application-as-a-service#checking-the-status-of-the-service).
+- The Python packages that are downloaded from `actions/python-versions` are originally compiled from source with the [--enable-shared](https://github.com/actions/python-versions/blob/main/builders/ubuntu-python-builder.psm1#L37) flag.
+- By default runner downloads and install the tools to the `RUNNER_TOOL_CACHE` directory, however `AGENT_TOOLSDIRECTORY` can be set to override this location.
 
 ### Mac
 
-- The same setup that applies to `Linux` also applies to `Mac`, just with a different tools cache directory.
-- Create a directory called `/Users/runner/hostedtoolcache`.
-- Set the `AGENT_TOOLSDIRECTORY` environment variable to `/Users/runner/hostedtoolcache`.
-- Change the permissions of `/Users/runner/hostedtoolcache` so that the runner has write access.
-
+- The Python packages that are downloaded from `actions/python-versions` are originally compiled from source with the [--enable-shared](https://github.com/actions/python-versions/blob/main/builders/macos-python-builder.psm1#L44) flag, however lack the relocatable flag.
+- Due to the fixed shared library path, only the hosted tool cache of  `/Users/runner/hostedtoolcache` is supported, and the path must be writeable by the runner user.
 
 # Using Python without `setup-python`
 

dist/setup/index.js

@@ -65340,16 +65340,13 @@ function resolveVersionInput() {
 function run() {
     var _a;
     return __awaiter(this, void 0, void 0, function* () {
-        // According to the README windows binaries do not require to be installed
-        // in the specific location, but Mac and Linux do
-        if (!utils_1.IS_WINDOWS && !((_a = process.env.AGENT_TOOLSDIRECTORY) === null || _a === void 0 ? void 0 : _a.trim())) {
-            if (utils_1.IS_LINUX)
-                process.env['AGENT_TOOLSDIRECTORY'] = '/opt/hostedtoolcache';
-            else
-                process.env['AGENT_TOOLSDIRECTORY'] = '/Users/runner/hostedtoolcache';
+        if (utils_1.IS_MAC) {
+            process.env['AGENT_TOOLSDIRECTORY'] = '/Users/runner/hostedtoolcache';
+        }
+        if ((_a = process.env.AGENT_TOOLSDIRECTORY) === null || _a === void 0 ? void 0 : _a.trim()) {
             process.env['RUNNER_TOOL_CACHE'] = process.env['AGENT_TOOLSDIRECTORY'];
         }
-        core.debug(`Python is expected to be installed into RUNNER_TOOL_CACHE=${process.env['RUNNER_TOOL_CACHE']}`);
+        core.debug(`Python is expected to be installed into ${process.env['RUNNER_TOOL_CACHE']}`);
         try {
             const version = resolveVersionInput();
             const checkLatest = core.getBooleanInput('check-latest');
@@ -65425,7 +65422,7 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
     return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.logWarning = exports.getLinuxOSReleaseInfo = exports.isCacheFeatureAvailable = exports.isGhes = exports.validatePythonVersionFormatForPyPy = exports.writeExactPyPyVersionFile = exports.readExactPyPyVersionFile = exports.getPyPyVersionFromPath = exports.isNightlyKeyword = exports.validateVersion = exports.createSymlinkInFolder = exports.WINDOWS_PLATFORMS = exports.WINDOWS_ARCHS = exports.IS_LINUX = exports.IS_WINDOWS = void 0;
+exports.logWarning = exports.getLinuxOSReleaseInfo = exports.isCacheFeatureAvailable = exports.isGhes = exports.validatePythonVersionFormatForPyPy = exports.writeExactPyPyVersionFile = exports.readExactPyPyVersionFile = exports.getPyPyVersionFromPath = exports.isNightlyKeyword = exports.validateVersion = exports.createSymlinkInFolder = exports.WINDOWS_PLATFORMS = exports.WINDOWS_ARCHS = exports.IS_MAC = exports.IS_LINUX = exports.IS_WINDOWS = void 0;
 const cache = __importStar(__nccwpck_require__(7799));
 const core = __importStar(__nccwpck_require__(2186));
 const fs_1 = __importDefault(__nccwpck_require__(7147));
@@ -65434,6 +65431,7 @@ const semver = __importStar(__nccwpck_require__(1383));
 const exec = __importStar(__nccwpck_require__(1514));
 exports.IS_WINDOWS = process.platform === 'win32';
 exports.IS_LINUX = process.platform === 'linux';
+exports.IS_MAC = process.platform === 'darwin';
 exports.WINDOWS_ARCHS = ['x86', 'x64'];
 exports.WINDOWS_PLATFORMS = ['win32', 'win64'];
 const PYPY_VERSION_FILE = 'PYPY_VERSION';

src/setup-python.ts

@@ -5,12 +5,7 @@ import * as path from 'path';
 import * as os from 'os';
 import fs from 'fs';
 import {getCacheDistributor} from './cache-distributions/cache-factory';
-import {
-  isCacheFeatureAvailable,
-  logWarning,
-  IS_LINUX,
-  IS_WINDOWS
-} from './utils';
+import {isCacheFeatureAvailable, logWarning, IS_MAC} from './utils';
 
 function isPyPyVersion(versionSpec: string) {
   return versionSpec.startsWith('pypy');
@@ -68,15 +63,16 @@ function resolveVersionInput(): string {
 }
 
 async function run() {
-  // According to the README windows binaries do not require to be installed
-  // in the specific location, but Mac and Linux do
-  if (!IS_WINDOWS && !process.env.AGENT_TOOLSDIRECTORY?.trim()) {
-    if (IS_LINUX) process.env['AGENT_TOOLSDIRECTORY'] = '/opt/hostedtoolcache';
-    else process.env['AGENT_TOOLSDIRECTORY'] = '/Users/runner/hostedtoolcache';
+  if (IS_MAC) {
+    process.env['AGENT_TOOLSDIRECTORY'] = '/Users/runner/hostedtoolcache';
+  }
+
+  if (process.env.AGENT_TOOLSDIRECTORY?.trim()) {
     process.env['RUNNER_TOOL_CACHE'] = process.env['AGENT_TOOLSDIRECTORY'];
   }
+
   core.debug(
-    `Python is expected to be installed into RUNNER_TOOL_CACHE=${process.env['RUNNER_TOOL_CACHE']}`
+    `Python is expected to be installed into ${process.env['RUNNER_TOOL_CACHE']}`
   );
   try {
     const version = resolveVersionInput();

src/utils.ts

@@ -7,6 +7,7 @@ import * as exec from '@actions/exec';
 
 export const IS_WINDOWS = process.platform === 'win32';
 export const IS_LINUX = process.platform === 'linux';
+export const IS_MAC = process.platform === 'darwin';
 export const WINDOWS_ARCHS = ['x86', 'x64'];
 export const WINDOWS_PLATFORMS = ['win32', 'win64'];
 const PYPY_VERSION_FILE = 'PYPY_VERSION';