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diff mercurial/wireproto.py @ 32260:d0d9a4fca59b

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clone: add a server-side option to disable full getbundles (pull-based clones) For large enough repositories, pull-based clones take too long, and an attempt to use them indicates some sort of configuration or other issue or maybe an outdated Mercurial. Add a config option to disable them.
author Siddharth Agarwal <sid0@fb.com>
date Thu, 11 May 2017 10:50:05 -0700
parents 53865692a354
children bd872f64a8ba
line wrap: on
line diff
--- a/mercurial/wireproto.py	Mon May 08 20:01:06 2017 -0700
+++ b/mercurial/wireproto.py	Thu May 11 10:50:05 2017 -0700
@@ -16,6 +16,7 @@
 from .node import (
     bin,
     hex,
+    nullid,
 )
 
 from . import (
@@ -841,6 +842,17 @@
                               hint=bundle2requiredhint)
 
     try:
+        if repo.ui.configbool('server', 'disablefullbundle', False):
+            # Check to see if this is a full clone.
+            clheads = set(repo.changelog.heads())
+            heads = set(opts.get('heads', set()))
+            common = set(opts.get('common', set()))
+            common.discard(nullid)
+            if not common and clheads == heads:
+                raise error.Abort(
+                    _('server has pull-based clones disabled'),
+                    hint=_('remove --pull if specified or upgrade Mercurial'))
+
         chunks = exchange.getbundlechunks(repo, 'serve', **opts)
     except error.Abort as exc:
         # cleanly forward Abort error to the client