[Updated] D9693: downgrade: if a compression is removed, consider that too

[pulkit (Pulkit Goyal)]

Closed by commit rHG1fcab88ab85c: downgrade: if a compression is removed, consider that too (authored by pulkit).
This revision was automatically updated to reflect the committed changes.

REPOSITORY
  rHG Mercurial

CHANGES SINCE LAST UPDATE
  https://phab.mercurial-scm.org/D9693?vs=24772&id=24789

CHANGES SINCE LAST ACTION
  https://phab.mercurial-scm.org/D9693/new/

REVISION DETAIL
  https://phab.mercurial-scm.org/D9693

AFFECTED FILES
  mercurial/upgrade_utils/actions.py

CHANGE DETAILS

diff --git a/mercurial/upgrade_utils/actions.py b/mercurial/upgrade_utils/actions.py
--- a/mercurial/upgrade_utils/actions.py
+++ b/mercurial/upgrade_utils/actions.py
@@ -467,6 +467,13 @@
     downgrades = []
 
     for fv in allformatvariant:
+        if fv.name == b'compression':
+            # If there is a compression change between repository
+            # and config, destination repository compression will change
+            # and current compression will be removed.
+            if fv.fromrepo(repo) != fv.fromconfig(repo):
+                downgrades.append(fv)
+            continue
         # format variant exist in repo but does not exist in new repository
         # config
         if fv.fromrepo(repo) and not fv.fromconfig(repo):



To: pulkit, #hg-reviewers, mharbison72
Cc: mharbison72, mercurial-patches
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