# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@ens-lyon.org>
# Date 1490153262 -3600
# Node ID 8f63f4b1c33efccb8d99c6e41b63d93c2ce29515
# Parent  b86b94434de765f0ec2cd9740a78491830898b49
stablerange: add an official warmup function

The function is responsible for making sure we have the necessary data for a
sets of heads. For now this only warm the depth cache. More will follow soon.

Such explicite warmup will be usefull for on disck caching as an early point of
writing will be easier.

diff -r b86b94434de7 -r 8f63f4b1c33e hgext3rd/evolve/obsdiscovery.py
--- a/hgext3rd/evolve/obsdiscovery.py	Sun Mar 19 04:47:31 2017 +0100
+++ b/hgext3rd/evolve/obsdiscovery.py	Wed Mar 22 04:27:42 2017 +0100
@@ -392,8 +392,7 @@
     s = node.short
     revs = scmutil.revrange(repo, opts['rev'])
     # prewarm depth cache
-    for r in repo.revs("::%ld", revs):
-        repo.stablerange.depthrev(repo, r)
+    repo.stablerange.warmup(repo, revs)
     toproceed = [stablerange.stablerange(repo, r, 0, ) for r in revs]
     ranges = set(toproceed)
     while toproceed:
diff -r b86b94434de7 -r 8f63f4b1c33e hgext3rd/evolve/stablerange.py
--- a/hgext3rd/evolve/stablerange.py	Sun Mar 19 04:47:31 2017 +0100
+++ b/hgext3rd/evolve/stablerange.py	Wed Mar 22 04:27:42 2017 +0100
@@ -138,6 +138,11 @@
         self._depthcache = {}
         self._subrangescache = {}
 
+    def warmup(self, repo, heads):
+        """warm the cache up to 'heads'"""
+        for r in repo.revs("::%ld", heads):
+            self.depthrev(repo, r)
+
     def depthrev(self, repo, rev):
         repo = repo.unfiltered()
         cl = repo.changelog