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index.js
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index.js
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const core = require('@actions/core');
const exec = require('@actions/exec');
const glob = require('@actions/glob');
const github = require('@actions/github');
const path = require('path');
function getInput(inputAlternativeNames, { required = false } = {}) {
if (!(inputAlternativeNames && inputAlternativeNames.length)) throw new Error("inputAlternativeNames is empty");
let val = "";
for (const [i, inputName] of inputAlternativeNames.entries()) {
val = core.getInput(inputName, {
required: required && i === inputAlternativeNames.length - 1
});
core.debug(`${val ? "Value" : "No value"} provided for input "${inputName}"`);
if (val) break;
}
return val;
}
const owner = 'google';
const repo = 'google-java-format';
const githubToken = getInput(['githubToken', 'github-token'], { required: false });
const commitMessage = getInput(['commitMessage', 'commit-message'], { required: false });
const executable = path.join(process.env.HOME || process.env.USERPROFILE, 'google-java-format.jar');
const apiReleases = `https://api.github.com/repos/${owner}/${repo}/releases`;
class ExecResult {
constructor(exitCode, stdOut, stdErr) {
this.exitCode = exitCode;
this.stdOut = stdOut;
this.stdErr = stdErr;
}
}
async function executeGJF(args = []) {
const arguments = [];
const javaVersion = await getJavaVersion();
// see https://github.com/google/google-java-format#jdk-16
if (javaVersion !== undefined && javaVersion >= 11)
arguments.push(...['api', 'file', 'parser', 'tree', 'util']
.flatMap(l => ['--add-exports', `jdk.compiler/com.sun.tools.javac.${l}=ALL-UNNAMED`]));
arguments.push('-jar', executable);
arguments.push(...args);
const options = {
cwd: process.env.GITHUB_WORKSPACE,
ignoreReturnCode: true
}
const exitCode = await exec.exec('java', arguments, options);
if (exitCode !== 0) {
throw `Google Java Format failed with exit code ${exitCode}`;
}
}
async function execute(command, { silent = false, ignoreReturnCode = false } = {}) {
let stdErr = '';
let stdOut = '';
const options = {
silent: silent,
ignoreReturnCode: true,
listeners: {
stdout: (data) => stdOut += data.toString(),
stderr: (data) => stdErr += data.toString(),
}
};
core.debug(`Executing: ${command}`);
const exitCode = await exec.exec(command, null, options);
core.debug(`Exit code: ${exitCode}`);
if (!ignoreReturnCode && exitCode !== 0) {
command = command.split(' ')[0];
throw `The command '${command}' failed with exit code ${exitCode}`;
}
return new ExecResult(exitCode, stdOut, stdErr);
}
async function curl(url, arguments) {
let command = `curl -sL "${url}"`;
if (arguments) command += ` ${arguments}`;
return await execute(command, { silent: !core.isDebug() });
}
async function listGJFReleases() {
if (!githubToken) {
const releases = await curl(apiReleases);
return JSON.parse(releases.stdOut);
}
const octokit = github.getOctokit(githubToken);
const releases = await octokit.rest.repos.listReleases({
owner: owner,
repo: repo
});
return releases.data;
}
async function getRelease(releaseId) {
if (!githubToken) {
const url = `${apiReleases}/${releaseId}`;
core.debug(`URL: ${url}`);
const release = await curl(url);
return JSON.parse(release.stdOut);
}
const octokit = github.getOctokit(githubToken);
const release = await octokit.rest.repos.getRelease({
owner: owner,
repo: repo,
release_id: releaseId
});
return release.data;
}
async function getJavaVersion() {
let javaVersion = await execute('java -version', { silent: !core.isDebug() });
javaVersion = javaVersion.stdErr
.split('\n')[0]
.match(RegExp(/[0-9\.]+/))[0];
core.debug(`Extracted version number: ${javaVersion}`);
if (javaVersion.startsWith('1.')) javaVersion = javaVersion.replace(RegExp(/^1\./), '');
javaVersion = javaVersion.split('\.')[0];
return parseInt(javaVersion);
}
async function getReleaseId() {
let releaseId = 'latest';
const releases = await listGJFReleases();
core.debug(`releases is ${typeof releases}`);
const findRelease = function (name) { return releases.find(r => r['name'] === name); };
// Check if a specific version is requested
const input = core.getInput('version');
if (input) {
const release = findRelease(input);
if (release) return release['id'];
core.warning(`Version "${input}" of Google Java Format cannot be found. Fallback to latest.`);
}
const javaVersion = await getJavaVersion();
if (isNaN(javaVersion)) core.warning('Cannot determine JDK version');
else {
core.info(`Version of JDK: ${javaVersion}`);
if (javaVersion < 11) {
// Versions after 1.7 require Java SDK 11+
core.warning('Latest versions of Google Java Format require Java SDK 11 min. Fallback to Google Java Format 1.7.');
releaseId = findRelease('1.7')['id'];
if (!releaseId) throw 'Cannot find release id of Google Java Format 1.7';
}
}
return releaseId;
}
async function push() {
if (!githubToken) await execute('git push');
else {
const env = process.env;
const remote = `https://${env.GITHUB_ACTOR}:${githubToken}@github.com/${env.GITHUB_REPOSITORY}.git`;
await execute(`git push ${remote}`);
}
}
async function run() {
try {
// Get Google Java Format executable and save it to [executable]
const releaseId = await getReleaseId();
await core.group('Downloading Google Java Format', async () => {
let release = await getRelease(releaseId)
core.debug(`release is ${typeof release}`);
const assets = release['assets'];
core.debug(`assets is ${typeof assets}`);
const downloadUrl = assets.find(asset => asset['name'].endsWith('all-deps.jar'))['browser_download_url'];
core.info(`Downloading executable to ${executable}`);
await curl(downloadUrl, `-o ${executable}`)
await executeGJF(['--version']);
});
// Execute Google Java Format with provided arguments
const args = core.getInput('args').split(' ');
core.debug(`Arguments: ${args}`);
const exclude = core.getInput('files-excluded');
const excludeRex = exclude && new RegExp(exclude);
const files = await (await glob.create(core.getInput('files'))).glob();
core.debug(`Files:`);
for (const file of files) {
if (!excludeRex || !excludeRex.test(file)) {
core.debug(`* ${file}`);
args.push(file);
}
}
await executeGJF(args);
// Commit changed files if there are any and if skipCommit != true
if (getInput(['skipCommit', 'skip-commit']).toLowerCase() !== 'true') {
await core.group('Committing changes', async () => {
await execute('git config user.name github-actions', { silent: true });
await execute("git config user.email ''", { silent: true });
const diffIndex = await execute('git diff-index --quiet HEAD', { ignoreReturnCode: true, silent: true });
if (diffIndex.exitCode !== 0) {
await execute(`git commit --all -m "${commitMessage ? commitMessage : 'Google Java Format'}"`);
await push();
} else core.info('Nothing to commit!')
});
}
} catch (message) {
core.setFailed(message);
}
}
run()