Fix style issues and build

Build the project using `npm run build` and run prettier using `npm run
format`

Author: elpic

__tests__/utils.test.ts

@@ -12,15 +12,15 @@ jest.mock('@actions/core');
 
 describe('parsePythonVersionFile', () => {
   it('handle the content of a .python-version file', () => {
-    expect(parsePythonVersionFile('3.6')).toEqual('3.6')
+    expect(parsePythonVersionFile('3.6')).toEqual('3.6');
   });
 
   it('trims extra spaces at the end of the content', () => {
-    expect(parsePythonVersionFile('3.7   ')).toEqual('3.7')
+    expect(parsePythonVersionFile('3.7   ')).toEqual('3.7');
   });
 
   it('parses correctly the content of .tool-version files', () => {
-    expect(parsePythonVersionFile('python 3.7')).toEqual('3.7')
+    expect(parsePythonVersionFile('python 3.7')).toEqual('3.7');
   });
 });
 

dist/setup/index.js

@@ -66921,7 +66921,7 @@ function resolveVersionInput() {
         if (!fs_1.default.existsSync(versionFile)) {
             throw new Error(`The specified python version file at: ${versionFile} doesn't exist.`);
         }
-        const version = fs_1.default.readFileSync(versionFile, 'utf8');
+        const version = utils_1.parsePythonVersionFile(fs_1.default.readFileSync(versionFile, 'utf8'));
         core.info(`Resolved ${versionFile} as ${version}`);
         return [version];
     }
@@ -67024,7 +67024,7 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
     return (mod && mod.__esModule) ? mod : { "default": mod };
 };
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.getOSInfo = exports.getLinuxInfo = exports.logWarning = exports.isCacheFeatureAvailable = exports.isGhes = exports.validatePythonVersionFormatForPyPy = exports.writeExactPyPyVersionFile = exports.readExactPyPyVersionFile = exports.getPyPyVersionFromPath = exports.isNightlyKeyword = exports.validateVersion = exports.createSymlinkInFolder = exports.WINDOWS_PLATFORMS = exports.WINDOWS_ARCHS = exports.IS_MAC = exports.IS_LINUX = exports.IS_WINDOWS = void 0;
+exports.getOSInfo = exports.getLinuxInfo = exports.logWarning = exports.isCacheFeatureAvailable = exports.isGhes = exports.validatePythonVersionFormatForPyPy = exports.writeExactPyPyVersionFile = exports.readExactPyPyVersionFile = exports.getPyPyVersionFromPath = exports.isNightlyKeyword = exports.validateVersion = exports.createSymlinkInFolder = exports.parsePythonVersionFile = exports.WINDOWS_PLATFORMS = exports.WINDOWS_ARCHS = exports.IS_MAC = exports.IS_LINUX = exports.IS_WINDOWS = void 0;
 const cache = __importStar(__nccwpck_require__(7799));
 const core = __importStar(__nccwpck_require__(2186));
 const fs_1 = __importDefault(__nccwpck_require__(7147));
@@ -67037,6 +67037,20 @@ exports.IS_MAC = process.platform === 'darwin';
 exports.WINDOWS_ARCHS = ['x86', 'x64'];
 exports.WINDOWS_PLATFORMS = ['win32', 'win64'];
 const PYPY_VERSION_FILE = 'PYPY_VERSION';
+function parsePythonVersionFile(contents) {
+    var _a;
+    let pythonVersion;
+    // Try to find the version in tool-version file
+    const found = contents.match(/^(?:python\s+)?v?(?<version>[^\s]+)$/m);
+    pythonVersion = (_a = found === null || found === void 0 ? void 0 : found.groups) === null || _a === void 0 ? void 0 : _a.version;
+    // In the case of an unknown format,
+    // return as is and evaluate the version separately.
+    if (!pythonVersion) {
+        pythonVersion = contents.trim();
+    }
+    return pythonVersion;
+}
+exports.parsePythonVersionFile = parsePythonVersionFile;
 /** create Symlinks for downloaded PyPy
  *  It should be executed only for downloaded versions in runtime, because
  *  toolcache versions have this setup.

docs/advanced-usage.md

@@ -241,7 +241,7 @@ jobs:
 The python-version-file input accepts a path to a file containing the version of Python to be used by a project, for example .python-version, or .tool-versions. 
 If both the python-version and the python-version-file inputs are provided then the python-version input is used. 
 
-> In case both `python-version` and `python-version-file` inputs are supplied, the `python-version-file` input will be ignored due to its lower priority.
+>In case both `python-version` and `python-version-file` inputs are supplied, the `python-version-file` input will be ignored due to its lower priority.
 
 ```yaml
 steps:

src/setup-python.ts

@@ -5,7 +5,12 @@ import * as path from 'path';
 import * as os from 'os';
 import fs from 'fs';
 import {getCacheDistributor} from './cache-distributions/cache-factory';
-import {parsePythonVersionFile, isCacheFeatureAvailable, logWarning, IS_MAC} from './utils';
+import {
+  parsePythonVersionFile,
+  isCacheFeatureAvailable,
+  logWarning,
+  IS_MAC
+} from './utils';
 
 function isPyPyVersion(versionSpec: string) {
   return versionSpec.startsWith('pypy');
@@ -43,7 +48,9 @@ function resolveVersionInput() {
       );
     }
 
-    const version = parsePythonVersionFile(fs.readFileSync(versionFile, 'utf8'));
+    const version = parsePythonVersionFile(
+      fs.readFileSync(versionFile, 'utf8')
+    );
     core.info(`Resolved ${versionFile} as ${version}`);
 
     return [version];