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cg.js
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cg.js
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#!/usr/bin/env node
// @ts-check
'use strict';
const fs = require('fs');
const path = require('path');
const url = require('url');
const util = require('util');
const yaml = require('yaml');
const fetch = require('node-fetch');
const co = require('co');
const swagger2openapi = require('swagger2openapi');
const stools = require('swagger-tools');
const admzip = require('adm-zip');
const processor = require('./index.js');
var argv = require('yargs')
.usage('cg [options] {[path]configName} {openapi-definition}')
.boolean('debug')
.alias('d','debug')
.describe('debug','Turn on debugging information in the model')
.boolean('flat')
.alias('f','flat')
.describe('flat','Do not include config-name in output directory structure')
.boolean('lint')
.alias('l','lint')
.describe('lint','Lint input definition')
.string('output')
.alias('o','output')
.describe('output','Specify output directory')
.default('output','./out/')
.boolean('stools')
.alias('s','stools')
.describe('stools','Use swagger-tools to validate OpenAPI 2.0 definitions')
.string('templates')
.alias('t','templates')
.describe('templates','Specify templates directory')
.boolean('verbose')
.describe('verbose','Increase verbosity')
.alias('v','verbose')
.boolean('zip')
.alias('z','zip')
.describe('zip','Create a .zip file instead of individual files')
.version()
.argv;
let configStr = argv._[0] || 'nodejs';
let configName = path.basename(configStr);
let configPath = path.dirname(configStr);
if (!configPath || (configPath === '.')) configPath = './configs';
let configFile = path.resolve(configPath,configName)+'.json';
let config = require(configFile);
let defName = argv._[1] || './defs/petstore3.json';
config.outputDir = argv.output;
config.templateDir = argv.templates;
let zipFiles = {};
function nop(arg, callback) { if (callback) callback(null,true); return true; }
function zipFile(filename,contents,encoding) {
zipFiles[filename] = contents;
}
function finish(err,result) {
if (argv.zip) {
// create archive
var zip = new admzip();
// add files directly
for (let f in zipFiles) {
zip.addFile(f, new Buffer(zipFiles[f]), 'Created with OpenAPI-CodeGen');
}
// write everything to disk
zip.writeZip(path.join(config.outputDir,configName+'.zip'));
}
}
function convert20(obj){
if (argv.verbose) console.log('Converting OpenAPI 2.0 definition');
swagger2openapi.convertObj(obj,{patch:true,warnOnly:true,direct:true},function(err,openapi){
if (err) {
console.error(util.inspect(err));
}
else {
config.defaults.swagger = obj;
processor.main(openapi,config,configName,finish);
}
});
}
function convert12(api){
if (argv.verbose) console.log('Converting Swagger 1.2 definition');
let options = {};
options.source = defName;
var aBase = options.source.split('/');
var filename = aBase.pop();
var extension = '';
if (filename.endsWith('.json')) {
extension = '.json';
}
else if (filename.endsWith('yaml')) {
extension = '.yaml';
}
else {
aBase.push(filename);
}
let base = aBase.join('/');
//if (options.source.endsWith('.json') || options.source.endsWith('.yaml')) {
// extension = '';
//}
var retrieve = [];
var apiDeclarations = [];
if (api.apis) {
for (var component of api.apis) {
component.path = component.path.replace('.{format}','.json');
var lbase = base;
if (component.path.startsWith('/')) {
let up = url.parse(base);
lbase = up.protocol + '//' + up.host;
}
if ((base.endsWith('/')) && (component.path.startsWith('/'))) {
lbase = base.substr(0,base.length-1);
}
if (component.path.indexOf('://')>=0) {
lbase = '';
}
var u = (lbase+component.path);
if (!u.endsWith(extension)) u += extension;
if (argv.verbose) console.log(u);
retrieve.push(fetch(u,options.fetchOptions)
.then(res => {
if (argv.verbose) console.log(res.status);
return res.text();
})
.then(data => {
apiDeclarations.push(yaml.parse(data));
})
.catch(err => {
console.error(util.inspect(err));
}));
}
}
co(function* () {
// resolve multiple promises in parallel
var res = yield retrieve;
var sVersion = 'v1_2';
stools.specs[sVersion].convert(api,apiDeclarations,true,function(err,converted){
if (err) {
console.error(util.inspect(err));
}
else {
if (converted.info && !converted.info.version) {
converted.info.version = '1.0.0';
}
convert20(converted);
}
});
});
}
function main(s) {
let o = yaml.parse(s);
if (argv.verbose) console.log('Loaded definition '+defName);
if (o && o.openapi) {
processor.main(o,config,configName,finish);
}
else {
if (o && o.swaggerVersion && o.swaggerVersion === '1.2') {
convert12(o);
}
else if (o && o.swagger && o.swagger === '2.0') {
convert20(o);
}
else {
console.error('Unrecognised OpenAPI/Swagger version');
}
}
}
if (argv.verbose) {
config.defaults.verbose = true;
console.log('Loaded config '+configName);
}
if (argv.lint) config.defaults.lint = true;
if (argv.debug) config.defaults.debug = true;
if (argv.flat) config.defaults.flat = true;
if (argv.stools) config.defaults.stools = true;
if (argv.zip) {
processor.fileFunctions.createFile = zipFile;
processor.fileFunctions.rimraf = nop;
processor.fileFunctions.mkdirp = nop;
processor.fileFunctions.mkdirp.sync = nop;
}
config.defaults.source = defName;
let up = url.parse(defName);
if (up.protocol && up.protocol.startsWith('http')) {
fetch(defName)
.then(function (res) {
return res.text();
}).then(function (body) {
main(body);
}).catch(function (err) {
console.error(err.message);
});
}
else {
let s = fs.readFileSync(defName,'utf8');
main(s);
}