repo: Do not even try to set up GPG with opt.no_repo_verify

In order to be able to use "--no-repo-verify" to work around an issue with
gpg-agent and long socket paths (see e.g. [1]), this change avoids GPG
being set up at all if that option is passed.

[1] https://github.com/elastic/elasticsearch/issues/17053

Change-Id: I1e5cbd8be2dc0084f12afe0ca33c789fdbc6fef9
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/251108
Reviewed-by: David Pursehouse <dpursehouse@collab.net>
Reviewed-by: Mike Frysinger <vapier@google.com>
Tested-by: Mike Frysinger <vapier@google.com>

repo

@@ -366,15 +366,18 @@ def _Init(args, gitc_init=False):
 
   _CheckGitVersion()
   try:
-    if NeedSetupGnuPG():
-      can_verify = SetupGnuPG(opt.quiet)
+    if opt.no_repo_verify:
+      do_verify = False
     else:
-      can_verify = True
+      if NeedSetupGnuPG():
+        do_verify = SetupGnuPG(opt.quiet)
+      else:
+        do_verify = True
 
     dst = os.path.abspath(os.path.join(repodir, S_repo))
     _Clone(url, dst, opt.quiet, not opt.no_clone_bundle)
 
-    if can_verify and not opt.no_repo_verify:
+    if do_verify:
       rev = _Verify(dst, branch, opt.quiet)
     else:
       rev = 'refs/remotes/origin/%s^0' % branch