Support .php-version file for version detection

README.md

@@ -391,14 +391,23 @@ Disable coverage for these reasons:
 
 > Specify using `with` keyword
 
-#### `php-version` (required)
+#### `php-version` (optional)
 
 - Specify the PHP version you want to set up.
 - Accepts a `string`. For example `'8.0'`.
 - Accepts `latest` to set up the latest stable PHP version.
 - Accepts `nightly` to set up a nightly build from the master branch of PHP.
 - Accepts the format `d.x`, where `d` is the major version. For example `5.x`, `7.x` and `8.x`.  
 - See [PHP support](#tada-php-support) for supported PHP versions.
+- By default, the PHP version is read from `php-version-file`.
+- Required if `php-version-file` does not exist.
+
+#### `php-version-file` (optional)
+
+- Specify the PHP version file you want to read when `php-version` is not provided.
+- Accepts a `string`. For example `'.phpenv-version'`.
+- See [PHP support](#tada-php-support) for supported PHP versions.
+- By default, `.php-version` file is used.
 
 #### `extensions` (optional)
 

__tests__/install.test.ts

@@ -10,7 +10,7 @@ jest.mock('../src/install', () => ({
     .mockImplementation(async (os: string): Promise<string> => {
       const filename = os + (await utils.scriptExtension(os));
       const version: string = await utils.parseVersion(
-        await utils.getInput('php-version', true)
+        await utils.resolveVersion()
       );
       const ini_file: string = await utils.parseIniFile(
         await utils.getInput('ini-file', false)

__tests__/utils.test.ts

@@ -1,3 +1,4 @@
+import fs from 'fs';
 import * as path from 'path';
 import * as utils from '../src/utils';
 
@@ -7,7 +8,8 @@ import * as utils from '../src/utils';
 jest.mock('@actions/core', () => ({
   getInput: jest.fn().mockImplementation(key => {
     return ['setup-php'].indexOf(key) !== -1 ? key : '';
-  })
+  }),
+  info: jest.fn()
 }));
 
 /**
@@ -261,6 +263,31 @@ describe('Utils tests', () => {
     );
   });
 
+  it('checking resolveVersion', async () => {
+    await expect(utils.resolveVersion()).rejects.toThrow(
+      "Neither 'php-version' nor 'php-version-file' inputs were supplied, and could not find '.php-version' file."
+    );
+
+    process.env['php-version-file'] = '.phpenv-version';
+    await expect(utils.resolveVersion()).rejects.toThrow(
+      "Could not find '.phpenv-version' file."
+    );
+
+    const existsSync = jest.spyOn(fs, 'existsSync').mockImplementation();
+    const readFileSync = jest.spyOn(fs, 'readFileSync').mockImplementation();
+
+    existsSync.mockReturnValue(true);
+    readFileSync.mockReturnValue('8.1');
+
+    expect(await utils.resolveVersion()).toBe('8.1');
+
+    process.env['php-version'] = '8.2';
+    expect(await utils.resolveVersion()).toBe('8.2');
+
+    existsSync.mockClear();
+    readFileSync.mockClear();
+  });
+
   it('checking setVariable', async () => {
     let script: string = await utils.setVariable('var', 'command', 'linux');
     expect(script).toEqual('\nvar="$(command)"\n');

dist/index.js

@@ -557,7 +557,7 @@ async function getScript(os) {
     const ini_values_csv = await utils.getInput('ini-values', false);
     const coverage_driver = await utils.getInput('coverage', false);
     const tools_csv = await utils.getInput('tools', false);
-    const version = await utils.parseVersion(await utils.getInput('php-version', true));
+    const version = await utils.parseVersion(await utils.resolveVersion());
     const ini_file = await utils.parseIniFile(await utils.getInput('ini-file', false));
     let script = await utils.joins('.', script_path, version, ini_file);
     if (extension_csv) {
@@ -1032,8 +1032,12 @@ var __importStar = (this && this.__importStar) || function (mod) {
     __setModuleDefault(result, mod);
     return result;
 };
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
 Object.defineProperty(exports, "__esModule", ({ value: true }));
-exports.setVariable = exports.parseExtensionSource = exports.customPackage = exports.scriptTool = exports.scriptExtension = exports.joins = exports.getCommand = exports.getUnsupportedLog = exports.suppressOutput = exports.getExtensionPrefix = exports.CSVArray = exports.extensionArray = exports.addLog = exports.stepLog = exports.log = exports.color = exports.asyncForEach = exports.parseIniFile = exports.parseVersion = exports.getManifestURL = exports.getInput = exports.readEnv = void 0;
+exports.setVariable = exports.resolveVersion = exports.parseExtensionSource = exports.customPackage = exports.scriptTool = exports.scriptExtension = exports.joins = exports.getCommand = exports.getUnsupportedLog = exports.suppressOutput = exports.getExtensionPrefix = exports.CSVArray = exports.extensionArray = exports.addLog = exports.stepLog = exports.log = exports.color = exports.asyncForEach = exports.parseIniFile = exports.parseVersion = exports.getManifestURL = exports.getInput = exports.readEnv = void 0;
+const fs_1 = __importDefault(__nccwpck_require__(7147));
 const path = __importStar(__nccwpck_require__(1017));
 const core = __importStar(__nccwpck_require__(2186));
 const fetch = __importStar(__nccwpck_require__(2387));
@@ -1279,6 +1283,26 @@ async function parseExtensionSource(extension, prefix) {
     return await joins('\nadd_extension_from_source', ...matches.splice(1, matches.length), prefix);
 }
 exports.parseExtensionSource = parseExtensionSource;
+async function resolveVersion() {
+    let version = await getInput('php-version', false);
+    let versionFile = await getInput('php-version-file', false);
+    if (version) {
+        return version;
+    }
+    if (versionFile && !fs_1.default.existsSync(versionFile)) {
+        throw new Error(`Could not find '${versionFile}' file.`);
+    }
+    versionFile ??= '.php-version';
+    if (fs_1.default.existsSync(versionFile)) {
+        version = fs_1.default.readFileSync(versionFile, 'utf8');
+        core.info(`Resolved ${versionFile} as ${version}`);
+    }
+    if (!version) {
+        throw new Error("Neither 'php-version' nor 'php-version-file' inputs were supplied, and could not find '.php-version' file.");
+    }
+    return version;
+}
+exports.resolveVersion = resolveVersion;
 async function setVariable(variable, command, os) {
     switch (os) {
         case 'win32':

src/install.ts

@@ -24,7 +24,7 @@ export async function getScript(os: string): Promise<string> {
   const coverage_driver: string = await utils.getInput('coverage', false);
   const tools_csv: string = await utils.getInput('tools', false);
   const version: string = await utils.parseVersion(
-    await utils.getInput('php-version', true)
+    await utils.resolveVersion()
   );
   const ini_file: string = await utils.parseIniFile(
     await utils.getInput('ini-file', false)

src/utils.ts

@@ -1,3 +1,4 @@
+import fs from 'fs';
 import * as path from 'path';
 import * as core from '@actions/core';
 import * as fetch from './fetch';
@@ -422,6 +423,37 @@ export async function parseExtensionSource(
   );
 }
 
+/**
+ * Resolve php version from input or file
+ */
+export async function resolveVersion(): Promise<string> {
+  let version = await getInput('php-version', false);
+  let versionFile = await getInput('php-version-file', false);
+
+  if (version) {
+    return version;
+  }
+
+  if (versionFile && !fs.existsSync(versionFile)) {
+    throw new Error(`Could not find '${versionFile}' file.`);
+  }
+
+  versionFile ??= '.php-version';
+
+  if (fs.existsSync(versionFile)) {
+    version = fs.readFileSync(versionFile, 'utf8');
+    core.info(`Resolved ${versionFile} as ${version}`);
+  }
+
+  if (!version) {
+    throw new Error(
+      "Neither 'php-version' nor 'php-version-file' inputs were supplied, and could not find '.php-version' file."
+    );
+  }
+
+  return version;
+}
+
 /**
  * Log to console
  *