[Request] [+-- ] D10848: createrepository: allow to directly pass the target requirements

[marmoute (Pierre-Yves David)]

marmoute created this revision.
Herald added a reviewer: hg-reviewers.
Herald added a subscriber: mercurial-patches.

REVISION SUMMARY
  This is useful when doing a local clone that copies store contents, it will
  requires the destination to use the very same store requirements so directly
  providing them will be simpler and safer

REPOSITORY
  rHG Mercurial

BRANCH
  default

REVISION DETAIL
  https://phab.mercurial-scm.org/D10848

AFFECTED FILES
  mercurial/localrepo.py

CHANGE DETAILS

diff --git a/mercurial/localrepo.py b/mercurial/localrepo.py
--- a/mercurial/localrepo.py
+++ b/mercurial/localrepo.py
@@ -3677,11 +3677,13 @@
     return {k: v for k, v in createopts.items() if k not in known}
 
 
-def createrepository(ui, path, createopts=None):
+def createrepository(ui, path, createopts=None, requirements=None):
     """Create a new repository in a vfs.
 
     ``path`` path to the new repo's working directory.
     ``createopts`` options for the new repository.
+    ``requirement`` predefined set of requirements.
+                    (incompatible with ``createopts``)
 
     The following keys for ``createopts`` are recognized:
 
@@ -3704,27 +3706,34 @@
        Indicates that storage for files should be shallow (not all ancestor
        revisions are known).
     """
-    createopts = defaultcreateopts(ui, createopts=createopts)
-
-    unknownopts = filterknowncreateopts(ui, createopts)
-
-    if not isinstance(unknownopts, dict):
-        raise error.ProgrammingError(
-            b'filterknowncreateopts() did not return a dict'
-        )
-
-    if unknownopts:
-        raise error.Abort(
-            _(
-                b'unable to create repository because of unknown '
-                b'creation option: %s'
+
+    if requirements is not None:
+        if createopts is not None:
+            msg = b'cannot specify both createopts and requirements'
+            raise error.ProgrammingError(msg)
+        createopts = {}
+    else:
+        createopts = defaultcreateopts(ui, createopts=createopts)
+
+        unknownopts = filterknowncreateopts(ui, createopts)
+
+        if not isinstance(unknownopts, dict):
+            raise error.ProgrammingError(
+                b'filterknowncreateopts() did not return a dict'
             )
-            % b', '.join(sorted(unknownopts)),
-            hint=_(b'is a required extension not loaded?'),
-        )
-
-    requirements = newreporequirements(ui, createopts=createopts)
-    requirements -= checkrequirementscompat(ui, requirements)
+
+        if unknownopts:
+            raise error.Abort(
+                _(
+                    b'unable to create repository because of unknown '
+                    b'creation option: %s'
+                )
+                % b', '.join(sorted(unknownopts)),
+                hint=_(b'is a required extension not loaded?'),
+            )
+
+        requirements = newreporequirements(ui, createopts=createopts)
+        requirements -= checkrequirementscompat(ui, requirements)
 
     wdirvfs = vfsmod.vfs(path, expandpath=True, realpath=True)
 



To: marmoute, #hg-reviewers
Cc: mercurial-patches, mercurial-devel
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