projen
Version:
CDK for software projects
105 lines • 15.7 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.synth = synth;
const child_process_1 = require("child_process");
const fs = require("fs");
const os = require("os");
const path = require("path");
const common_1 = require("../common");
const logging = require("../logging");
const project_1 = require("../project");
const projenModule = path.dirname(require.resolve("../../package.json"));
async function synth(runtime, options) {
const workdir = runtime.workdir;
const rcfile = path.resolve(workdir, options.rcfile ?? common_1.DEFAULT_PROJEN_RC_JS_FILENAME); // TODO: support non javascript projenrc (e.g. java projects)
// if --rc points to .projenrc.js, then behave as if it wasn't specified.
if (rcfile === path.resolve(workdir, common_1.DEFAULT_PROJEN_RC_JS_FILENAME)) {
delete options.rcfile;
}
// if there are no tasks, we assume this is not a projen project (modern
// projects must at least have the "default" task).
if (runtime.tasks.length === 0 && !fs.existsSync(rcfile)) {
logging.error('Unable to find projen project. Use "projen new" to create a new project.');
process.exit(1);
}
// run synth once
const success = await trySynth();
if (options.watch) {
// if we are in watch mode, start the watch loop
watchLoop();
}
else if (!success) {
// make sure exit code is non-zero if we are not in watch mode
process.exit(1);
}
async function trySynth() {
// determine if post synthesis tasks should be executed (e.g. "yarn install").
process.env.PROJEN_DISABLE_POST = (!options.post).toString();
try {
const defaultTask = runtime.tasks.find((t) => t.name === project_1.Project.DEFAULT_TASK);
// if "--rc" is specified, ignore the default task
if (defaultTask) {
if (!options.rcfile) {
runtime.runTask(defaultTask.name);
return true;
}
else {
logging.warn("Default task skipped. Trying legacy synthesis since --rc is specified");
}
}
// for backwards compatibility, if there is a .projenrc.js file, default to "node .projenrc.js"
if (tryLegacySynth()) {
return true;
}
throw new Error('Unable to find a task named "default"');
}
catch (e) {
logging.error(`Synthesis failed: ${e.message}`);
return false;
}
}
function watchLoop() {
logging.info(`Watching for changes in ${workdir}...`);
const watch = fs.watch(workdir, { recursive: true });
watch.on("change", (event) => {
// we only care about "change" events
if (event !== "change") {
return;
}
process.stdout.write("\x1Bc"); // clear screen
watch.close();
trySynth()
.then(() => watchLoop())
.catch(() => watchLoop());
});
}
function tryLegacySynth() {
const rcdir = path.dirname(rcfile);
if (!fs.existsSync(rcfile)) {
return false;
}
// if node_modules/projen is not a directory or does not exist, create a
// temporary symlink to the projen that we are currently running in order to
// allow .projenrc.js to `require()` it.
const nodeModules = path.resolve(rcdir, "node_modules");
const projenModulePath = path.resolve(nodeModules, "projen");
if (!fs.existsSync(path.join(projenModulePath, "package.json")) ||
!fs.statSync(projenModulePath).isDirectory()) {
fs.rmSync(projenModulePath, { force: true, recursive: true });
fs.mkdirSync(nodeModules, { recursive: true });
fs.symlinkSync(projenModule, projenModulePath, os.platform() === "win32" ? "junction" : null);
}
const ret = (0, child_process_1.spawnSync)(process.execPath, [rcfile], {
stdio: ["inherit", "inherit", "pipe"],
});
if (ret.error) {
throw new Error(`Synthesis failed: ${ret.error}`);
}
else if (ret.status !== 0) {
logging.error(ret.stderr.toString());
throw new Error(`Synthesis failed: calling "${process.execPath} ${rcfile}" exited with status=${ret.status}`);
}
return true;
}
}
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DEFAULT_PROJEN_RC_JS_FILENAME\n  ); // TODO: support non javascript projenrc (e.g. java projects)\n\n  // if --rc points to .projenrc.js, then behave as if it wasn't specified.\n  if (rcfile === path.resolve(workdir, DEFAULT_PROJEN_RC_JS_FILENAME)) {\n    delete (options as any).rcfile;\n  }\n\n  // if there are no tasks, we assume this is not a projen project (modern\n  // projects must at least have the \"default\" task).\n  if (runtime.tasks.length === 0 && !fs.existsSync(rcfile)) {\n    logging.error(\n      'Unable to find projen project. Use \"projen new\" to create a new project.'\n    );\n    process.exit(1);\n  }\n\n  // run synth once\n  const success = await trySynth();\n\n  if (options.watch) {\n    // if we are in watch mode, start the watch loop\n    watchLoop();\n  } else if (!success) {\n    // make sure exit code is non-zero if we are not in watch mode\n    process.exit(1);\n  }\n\n  async function trySynth() {\n    // determine if post synthesis tasks should be executed (e.g. \"yarn install\").\n    process.env.PROJEN_DISABLE_POST = (!options.post).toString();\n    try {\n      const defaultTask = runtime.tasks.find(\n        (t) => t.name === Project.DEFAULT_TASK\n      );\n\n      // if \"--rc\" is specified, ignore the default task\n      if (defaultTask) {\n        if (!options.rcfile) {\n          runtime.runTask(defaultTask.name);\n          return true;\n        } else {\n          logging.warn(\n            \"Default task skipped. Trying legacy synthesis since --rc is specified\"\n          );\n        }\n      }\n\n      // for backwards compatibility, if there is a .projenrc.js file, default to \"node .projenrc.js\"\n      if (tryLegacySynth()) {\n        return true;\n      }\n\n      throw new Error('Unable to find a task named \"default\"');\n    } catch (e) {\n      logging.error(`Synthesis failed: ${(e as any).message}`);\n      return false;\n    }\n  }\n\n  function watchLoop() {\n    logging.info(`Watching for changes in ${workdir}...`);\n    const watch = fs.watch(workdir, { recursive: true });\n    watch.on(\"change\", (event) => {\n      // we only care about \"change\" events\n      if (event !== \"change\") {\n        return;\n      }\n\n      process.stdout.write(\"\\x1Bc\"); // clear screen\n      watch.close();\n      trySynth()\n        .then(() => watchLoop())\n        .catch(() => watchLoop());\n    });\n  }\n\n  function tryLegacySynth() {\n    const rcdir = path.dirname(rcfile);\n\n    if (!fs.existsSync(rcfile)) {\n      return false;\n    }\n\n    // if node_modules/projen is not a directory or does not exist, create a\n    // temporary symlink to the projen that we are currently running in order to\n    // allow .projenrc.js to `require()` it.\n    const nodeModules = path.resolve(rcdir, \"node_modules\");\n    const projenModulePath = path.resolve(nodeModules, \"projen\");\n    if (\n      !fs.existsSync(path.join(projenModulePath, \"package.json\")) ||\n      !fs.statSync(projenModulePath).isDirectory()\n    ) {\n      fs.rmSync(projenModulePath, { force: true, recursive: true });\n      fs.mkdirSync(nodeModules, { recursive: true });\n      fs.symlinkSync(\n        projenModule,\n        projenModulePath,\n        os.platform() === \"win32\" ? \"junction\" : null\n      );\n    }\n\n    const ret = spawnSync(process.execPath, [rcfile], {\n      stdio: [\"inherit\", \"inherit\", \"pipe\"],\n    });\n    if (ret.error) {\n      throw new Error(`Synthesis failed: ${ret.error}`);\n    } else if (ret.status !== 0) {\n      logging.error(ret.stderr.toString());\n      throw new Error(\n        `Synthesis failed: calling \"${process.execPath} ${rcfile}\" exited with status=${ret.status}`\n      );\n    }\n\n    return true;\n  }\n}\n"]}