fix: modify fetch function to handle CircleCI specifics

lib/branches/index.js

@@ -8,7 +8,7 @@ const expand = require('./expand');
 const getTags = require('./get-tags');
 const normalize = require('./normalize');
 
-module.exports = async (repositoryUrl, context) => {
+module.exports = async (repositoryUrl, ciBranch, context) => {
   const {cwd, env} = context;
 
   const remoteBranches = await expand(
@@ -18,7 +18,7 @@ module.exports = async (repositoryUrl, context) => {
   );
 
   await pEachSeries(remoteBranches, async ({name}) => {
-    await fetch(repositoryUrl, name, {cwd, env});
+    await fetch(repositoryUrl, name, ciBranch, {cwd, env});
   });
 
   await fetchNotes(repositoryUrl, {cwd, env});

lib/git.js

@@ -119,7 +119,7 @@ async function isRefExists(ref, execaOpts) {
  * @param {String} branch The repository branch to fetch.
  * @param {Object} [execaOpts] Options to pass to `execa`.
  */
-async function fetch(repositoryUrl, branch, execaOpts) {
+async function fetch(repositoryUrl, branch, ciBranch, execaOpts) {
   const isLocalExists =
     (await execa('git', ['rev-parse', '--verify', branch], {...execaOpts, reject: false})).exitCode === 0;
 
@@ -130,7 +130,9 @@ async function fetch(repositoryUrl, branch, execaOpts) {
         'fetch',
         '--unshallow',
         '--tags',
-        ...(isLocalExists ? [repositoryUrl] : [repositoryUrl, `+refs/heads/${branch}:refs/heads/${branch}`]),
+        ...(branch === ciBranch && isLocalExists
+          ? [repositoryUrl]
+          : ['--update-head-ok', repositoryUrl, `+refs/heads/${branch}:refs/heads/${branch}`]),
       ],
       execaOpts
     );
@@ -140,7 +142,9 @@ async function fetch(repositoryUrl, branch, execaOpts) {
       [
         'fetch',
         '--tags',
-        ...(isLocalExists ? [repositoryUrl] : [repositoryUrl, `+refs/heads/${branch}:refs/heads/${branch}`]),
+        ...(branch === ciBranch && isLocalExists
+          ? [repositoryUrl]
+          : ['--update-head-ok', repositoryUrl, `+refs/heads/${branch}:refs/heads/${branch}`]),
       ],
       execaOpts
     );