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phases: mechanism to allow extension to alter initial computation of phase
authorPierre-Yves David <pierre-yves.david@logilab.fr>
Wed, 18 Jan 2012 17:23:54 +0100
changeset 15922 23921c17299a
parent 15921 92e455f2866c
child 15923 4b088ae9d47a
phases: mechanism to allow extension to alter initial computation of phase This commit add a whennodata list where extension can register a callback to be called if no phase related data are found in the repository. The goal is to ensure the existing extension that move phase data in 2.1 can compute consistent phase boundary for existing repo.
mercurial/localrepo.py file | annotate | diff | comparison | revisions
mercurial/phases.py file | annotate | diff | comparison | revisions
mercurial/statichttprepo.py file | annotate | diff | comparison | revisions 
--- a/mercurial/localrepo.py	Wed Jan 18 17:11:27 2012 +0100
+++ b/mercurial/localrepo.py	Wed Jan 18 17:23:54 2012 +0100
@@ -37,6 +37,10 @@
         self.baseui = baseui
         self.ui = baseui.copy()
         self._dirtyphases = False
+        # A list of callback to shape the phase if no data were found.
+        # Callback are in the form: func(repo, roots) --> processed root.
+        # This list it to be filled by extension during repo setup
+        self._phasedefaults = []
 
         try:
             self.ui.readconfig(self.join("hgrc"), self.root)
--- a/mercurial/phases.py	Wed Jan 18 17:11:27 2012 +0100
+++ b/mercurial/phases.py	Wed Jan 18 17:23:54 2012 +0100
@@ -109,7 +109,6 @@
 def readroots(repo):
     """Read phase roots from disk"""
     roots = [set() for i in allphases]
-    roots[0].add(nullid)
     try:
         f = repo.sopener('phaseroots')
         try:
@@ -121,6 +120,8 @@
     except IOError, inst:
         if inst.errno != errno.ENOENT:
             raise
+        for f in repo._phasedefaults:
+            roots = f(repo, roots)
     return roots
 
 def writeroots(repo):
--- a/mercurial/statichttprepo.py	Wed Jan 18 17:11:27 2012 +0100
+++ b/mercurial/statichttprepo.py	Wed Jan 18 17:23:54 2012 +0100
@@ -86,6 +86,7 @@
 
         opener = build_opener(ui, authinfo)
         self.opener = opener(self.path)
+        self._phasedefaults = []
 
         try:
             requirements = scmutil.readrequires(self.opener, self.supported)
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