121 lines
3.1 KiB
JavaScript
Executable file
121 lines
3.1 KiB
JavaScript
Executable file
#!/usr/bin/env node
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const fs = require('fs');
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const yaml = require('js-yaml');
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const {default: codegen} = require('../dist/codegen.js');
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const badArgv = (x, code=1) => {
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console.error(`\x1b[1;31mError: ${x}\x1b[0m`);
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console.error([
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'Usage: api-codegen <apiDocPath> [flags]',
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'Flags:',
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' -o --output-dir <output-dir>: output directory(default: api/generated)',
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' -c --client-only: client code only(default: client & server)',
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].join('\n'));
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process.exit(code);
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};
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const errExit = (x, err, code=1) => {
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console.error(`\x1b[1;31mError: ${x}\x1b[0m`);
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if (err) console.error(err);
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process.exit(code);
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};
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const argAttrs = ['apiDocPath'];
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const flag2attr = {
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'o': 'outputDir',
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'output-dir': 'outputDir',
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};
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const flag2attr0 = { // nullary
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'c': 'clientOnly',
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'client-only': 'clientOnly',
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};
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const requiredAttrs = [
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...argAttrs,
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];
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function parseArgv(argv) {
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const argAttrLs = [...argAttrs];
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const config = {};
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let flag0 = null;
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let attr = null;
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const setFlag = flag => {
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flag0 = flag;
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const attr0 = flag2attr[flag];
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if (attr0 == null) {
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const attr0 = flag2attr0[flag];
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if (attr0 == null) return badArgv(`Unknown flag: ${flag}`);
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// nullary attr
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if (config[attr0] != null) return badArgv(`Duplicate flag: ${flag}`);
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config[attr0] = true;
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} else {
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// attr
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if (config[attr0] != null) return badArgv(`Duplicate flag: ${flag}`);
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attr = attr0;
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}
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};
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const setVal = val => {
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if (attr == null) {
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const attr0 = argAttrLs.shift();
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if (attr0 == null) return badArgv(`Unexpected token: ${val}`);
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config[attr0] = val;
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} else {
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config[attr] = val;
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attr = null;
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}
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};
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for (const arg of argv) {
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if (arg.startsWith('-')) {
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if (arg.length === 1) {
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return badArgv(`Unexpected token: -`);
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} else if (arg[1] === '-') {
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// flag name
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setFlag(arg.substring(2));
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} else {
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// flag name + para
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setFlag(arg[1]);
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if (arg.length > 2) setVal(arg.substring(2));
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}
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} else { // val
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setVal(arg);
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}
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}
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// check
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if (attr != null) return badArgv(`Expect value for flag: ${flag0}`);
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for (const attr of requiredAttrs) {
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if (!config[attr]) return badArgv(`${attr} is required`);
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}
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return config;
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}
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async function miku() {
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const config = parseArgv(process.argv.slice(2));
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const {apiDocPath} = config;
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let sAPI;
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try {
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sAPI = fs.readFileSync(apiDocPath).toString();
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} catch (err) {
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return errExit(`Fail to read api doc with path: ${apiDocPath}`, err);
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}
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let api;
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if (apiDocPath.endsWith('.json')) {
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try {
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api = JSON.parse(sAPI);
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} catch (err) {
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return errExit('Invalid JSON file', err);
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}
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} else if (apiDocPath.match(/\.ya?ml$/)) {
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try {
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api = yaml.load(sAPI);
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} catch (err) {
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return errExit('Invalid YAML file', err);
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}
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} else {
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return errExit(`Unknown file type: ${apiDocPath}`);
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}
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// TODO
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const openAPI = api;
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return codegen(openAPI, config);
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}
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miku()
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.then(() => console.log('\x1b[1;96mDONE\x1b[0m'))
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.catch(err => errExit('Fail to codegen', err));
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