[GitlabService] Respect vscode http.proxy setting

See merge request fatihacet/gitlab-vscode-extension!13

CONTRIBUTORS.md

@@ -6,4 +6,5 @@
 - Christian Svensson [@csvn](https://gitlab.com/csvn)
 - Alpcan Aydin [@alpcanaydin](https://gitlab.com/alpcanaydin)
 - Pierre [@piec](https://gitlab.com/piec)
-- Adem Ilter[@ademilter](https://twitter.com/ademilter)
+- Adem Ilter [@ademilter](https://twitter.com/ademilter)
+- Abbas Mashayekh [@martianboy][https://gitlab.com/martianboy]
\ No newline at end of file

src/gitlab_service.js

@@ -10,6 +10,7 @@ let branchMR = null;
 
 async function fetch(path, method = 'GET', data = null) {
   const { instanceUrl, ignoreCertificateErrors, ca } = vscode.workspace.getConfiguration('gitlab');
+  const { proxy } = vscode.workspace.getConfiguration('http');
   const apiRoot = `${instanceUrl}/api/v4`;
   const glToken = tokenService.getToken(instanceUrl);
 
@@ -28,6 +29,10 @@ async function fetch(path, method = 'GET', data = null) {
     rejectUnauthorized: !ignoreCertificateErrors,
   };
 
+  if (proxy) {
+    config.proxy = proxy;
+  }
+
   if (ca) {
     try {
       config.ca = fs.readFileSync(ca);