feat: support system proxy (nodejs#408)

Author: himself65

lib/proxy.js

@@ -0,0 +1,21 @@
+const ProxyAgent = require('proxy-agent');
+const { globalAgent } = require('https');
+const { spawnSync } = require('child_process');
+const { getMergedConfig } = require('./config');
+
+function proxy() {
+  let proxyUrl = getMergedConfig().proxy;
+  if (proxyUrl == null || proxyUrl === '') {
+    proxyUrl = spawnSync(
+      'git',
+      ['config', '--get', '--path', 'https.proxy']
+    ).stdout.toString();
+  }
+  if (proxyUrl == null || proxyUrl === '') {
+    return globalAgent;
+  } else {
+    return new ProxyAgent(proxyUrl);
+  }
+}
+
+module.exports = proxy;

lib/request.js

@@ -4,10 +4,12 @@ const fetch = require('node-fetch');
 const fs = require('fs');
 const path = require('path');
 const { CI_DOMAIN } = require('./ci/ci_type_parser');
+const proxy = require('./proxy');
 
 class Request {
   constructor(credentials) {
     this.credentials = credentials;
+    this.proxyAgent = proxy();
   }
 
   loadQuery(file) {
@@ -16,6 +18,7 @@ class Request {
   }
 
   async text(url, options = {}) {
+    options.agent = this.proxyAgent;
     if (url.startsWith(`https://${CI_DOMAIN}`)) {
       options.headers = options.headers || {};
       Object.assign(options.headers, this.getJenkinsHeaders());
@@ -24,6 +27,7 @@ class Request {
   }
 
   async json(url, options = {}) {
+    options.agent = this.proxyAgent;
     options.headers = options.headers || {};
     options.headers.Accept = 'application/json';
     if (url.startsWith(`https://${CI_DOMAIN}`)) {
@@ -65,6 +69,7 @@ class Request {
     }
     const url = 'https://api.github.com/graphql';
     const options = {
+      agent: this.proxyAgent,
       method: 'POST',
       headers: {
         Authorization: `Basic ${githubCredentials}`,

package.json

@@ -47,6 +47,7 @@
     "lodash": "^4.17.15",
     "node-fetch": "^2.6.0",
     "ora": "^4.0.4",
+    "proxy-agent": "^3.1.1",
     "replace-in-file": "^6.0.0",
     "rimraf": "^3.0.2",
     "yargs": "^15.3.1"