[PATCH 05 of 10 shelve-ext v4] shelve: add a function to check whether obs-based shelve is enabled

Kostia Balytskyi ikostia at fb.com
Sat Mar 11 16:00:24 EST 2017


# HG changeset patch
# User Kostia Balytskyi <ikostia at fb.com>
# Date 1489250294 28800
#      Sat Mar 11 08:38:14 2017 -0800
# Node ID 7123aecf3dd2b468a6cd47b3615c893ea73a18ec
# Parent  3b034fb4bfcfdfd7700fd43edef33d032efd4924
shelve: add a function to check whether obs-based shelve is enabled

A central place to check whether code should use traditional or
obsolescense-based shelve behavior.

diff --git a/hgext/shelve.py b/hgext/shelve.py
--- a/hgext/shelve.py
+++ b/hgext/shelve.py
@@ -40,6 +40,7 @@ from mercurial import (
     mdiff,
     merge,
     node as nodemod,
+    obsolete,
     patch,
     phases,
     repair,
@@ -71,6 +72,18 @@ patchextension = 'patch'
 # generic user for all shelve operations
 shelveuser = 'shelve at localhost'
 
+def isobsshelve(repo, ui):
+    """Check whether obsolescense-based shelve is enabled"""
+    obsshelve = ui.configbool('experimental', 'obsshelve')
+    if not obsshelve:
+        return False
+    if not obsolete.isenabled(repo, obsolete.createmarkersopt):
+        w = _('ignoring experimental.obsshelve because createmarkers option '
+              'is disabled')
+        ui.warn(w)
+        return False
+    return True
+
 class shelvedfile(object):
     """Helper for the file storing a single shelve
 


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