indygreg created this revision.
Herald added a subscriber: mercurial-devel.
Herald added a reviewer: hg-reviewers.

REVISION SUMMARY
  This may make a comeback in wire protocol version 2. The feature
  definitely needs to be carried forward. But at this juncture, I'm
  flirting with the idea of implementing this via a "redirect"
  mechanism at the command response level itself rather than something
  that requires one-off client support for querying and handling.
  i.e. I want to make it so servers can say "fetch this first and
  then come back" and clients handle that automatically. This would
  not only support clone bundles, but would also support piece-meal
  "pull bundles." Whatever happens, we can deal with it down the
  road.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D3203

AFFECTED FILES
  mercurial/wireproto.py
  tests/test-wireproto-command-capabilities.t

CHANGE DETAILS

diff --git a/tests/test-wireproto-command-capabilities.t 
b/tests/test-wireproto-command-capabilities.t
--- a/tests/test-wireproto-command-capabilities.t
+++ b/tests/test-wireproto-command-capabilities.t
@@ -30,11 +30,11 @@
   s>     \r\n
   s>     *\r\n (glob)
   s>     *\x00\x01\x00\x02\x01F (glob)
-  s>     
\xa2Hcommands\xaaEheads\xa2Dargs\xa1Jpubliconly\xf4Kpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\x81HdeadbeefKpermissions\x81DpullFlookup\xa2Dargs\xa1CkeyFlegacyKpermissions\x81DpullGpushkey\xa2Dargs\xa4CkeyFlegacyCnewFlegacyColdFlegacyInamespaceFlegacyKpermissions\x81DpushHlistkeys\xa2Dargs\xa1InamespaceBnsKpermissions\x81DpullHunbundle\xa2Dargs\xa1EheadsFlegacyKpermissions\x81DpushIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullIgetbundle\xa2Dargs\xa1A*FlegacyKpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullLclonebundles\xa2Dargs\xa0Kpermissions\x81DpullKcompression\x82\xa1DnameDzstd\xa1DnameDzlib
+  s>     
\xa2Hcommands\xa9Eheads\xa2Dargs\xa1Jpubliconly\xf4Kpermissions\x81DpullEknown\xa2Dargs\xa1Enodes\x81HdeadbeefKpermissions\x81DpullFlookup\xa2Dargs\xa1CkeyFlegacyKpermissions\x81DpullGpushkey\xa2Dargs\xa4CkeyFlegacyCnewFlegacyColdFlegacyInamespaceFlegacyKpermissions\x81DpushHlistkeys\xa2Dargs\xa1InamespaceBnsKpermissions\x81DpullHunbundle\xa2Dargs\xa1EheadsFlegacyKpermissions\x81DpushIbranchmap\xa2Dargs\xa0Kpermissions\x81DpullIgetbundle\xa2Dargs\xa1A*FlegacyKpermissions\x81DpullLcapabilities\xa2Dargs\xa0Kpermissions\x81DpullKcompression\x82\xa1DnameDzstd\xa1DnameDzlib
   s>     \r\n
   received frame(size=*; request=1; stream=2; streamflags=stream-begin; 
type=bytes-response; flags=eos|cbor) (glob)
   s>     0\r\n
   s>     \r\n
-  response: [{b'commands': {b'branchmap': {b'args': {}, b'permissions': 
[b'pull']}, b'capabilities': {b'args': {}, b'permissions': [b'pull']}, 
b'clonebundles': {b'args': {}, b'permissions': [b'pull']}, b'getbundle': 
{b'args': {b'*': b'legacy'}, b'permissions': [b'pull']}, b'heads': {b'args': 
{b'publiconly': False}, b'permissions': [b'pull']}, b'known': {b'args': 
{b'nodes': [b'deadbeef']}, b'permissions': [b'pull']}, b'listkeys': {b'args': 
{b'namespace': b'ns'}, b'permissions': [b'pull']}, b'lookup': {b'args': 
{b'key': b'legacy'}, b'permissions': [b'pull']}, b'pushkey': {b'args': {b'key': 
b'legacy', b'namespace': b'legacy', b'new': b'legacy', b'old': b'legacy'}, 
b'permissions': [b'push']}, b'unbundle': {b'args': {b'heads': b'legacy'}, 
b'permissions': [b'push']}}, b'compression': [{b'name': b'zstd'}, {b'name': 
b'zlib'}]}]
+  response: [{b'commands': {b'branchmap': {b'args': {}, b'permissions': 
[b'pull']}, b'capabilities': {b'args': {}, b'permissions': [b'pull']}, 
b'getbundle': {b'args': {b'*': b'legacy'}, b'permissions': [b'pull']}, 
b'heads': {b'args': {b'publiconly': False}, b'permissions': [b'pull']}, 
b'known': {b'args': {b'nodes': [b'deadbeef']}, b'permissions': [b'pull']}, 
b'listkeys': {b'args': {b'namespace': b'ns'}, b'permissions': [b'pull']}, 
b'lookup': {b'args': {b'key': b'legacy'}, b'permissions': [b'pull']}, 
b'pushkey': {b'args': {b'key': b'legacy', b'namespace': b'legacy', b'new': 
b'legacy', b'old': b'legacy'}, b'permissions': [b'push']}, b'unbundle': 
{b'args': {b'heads': b'legacy'}, b'permissions': [b'push']}}, b'compression': 
[{b'name': b'zstd'}, {b'name': b'zlib'}]}]
 
   $ cat error.log
diff --git a/mercurial/wireproto.py b/mercurial/wireproto.py
--- a/mercurial/wireproto.py
+++ b/mercurial/wireproto.py
@@ -865,7 +865,8 @@
 
     return wireprototypes.bytesresponse(''.join(r))
 
-@wireprotocommand('clonebundles', '', permission='pull')
+@wireprotocommand('clonebundles', '', permission='pull',
+                  transportpolicy=POLICY_V1_ONLY)
 def clonebundles(repo, proto):
     """Server command for returning info for available bundles to seed clones.
 



To: indygreg, #hg-reviewers
Cc: mercurial-devel
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