[PATCH 3 of 3 V2] copies: extract an explicit `computechangesetfilesremoved` method from context

Pierre-Yves David pierre-yves.david at ens-lyon.org
Wed Aug 7 05:24:27 EDT 2019


# HG changeset patch
# User Pierre-Yves David <pierre-yves.david at octobus.net>
# Date 1560343372 -3600
#      Wed Jun 12 13:42:52 2019 +0100
# Node ID 961d24dfe801ac0c5ad5737d98d553075cef4089
# Parent  f6b2517c3651915610cee753ff8351e90078685d
# EXP-Topic extrameta
# Available At https://bitbucket.org/octobus/mercurial-devel/
#              hg pull https://bitbucket.org/octobus/mercurial-devel/ -r 961d24dfe801
copies: extract an explicit `computechangesetfilesremoved` method from context

Right now, the logic around changeset centric removed files data are buried into
the "changectx" code. We extract this code in a dedicated method (in the copies
module) for clarity. This clarity will help to explicitly compute and caches
these data in the future.

diff --git a/mercurial/context.py b/mercurial/context.py
--- a/mercurial/context.py
+++ b/mercurial/context.py
@@ -466,12 +466,7 @@ class changectx(basectx):
             (source == 'compatibility' and
              self._changeset.filesremoved is not None)):
             return self._changeset.filesremoved or []
-
-        removed = []
-        for f in self.files():
-            if f not in self:
-                removed.append(f)
-        return removed
+        return scmutil.computechangesetfilesremoved(self)
 
     @propertycache
     def _copies(self):
diff --git a/mercurial/scmutil.py b/mercurial/scmutil.py
--- a/mercurial/scmutil.py
+++ b/mercurial/scmutil.py
@@ -1993,3 +1993,12 @@ def computechangesetfilesadded(ctx):
         if not any(f in p for p in ctx.parents()):
             added.append(f)
     return added
+
+def computechangesetfilesremoved(ctx):
+    """return the list of files removed in a changeset
+    """
+    removed = []
+    for f in ctx.files():
+        if f not in ctx:
+            removed.append(f)
+    return removed


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