dirstate: move parent state handling in the dirstatemap
This involves dirstatemap data mostly. Moving this one level down will remove
the needs for the dirstatemap to expose some of its internals.
This will help us to simplify more code further.
Differential Revision: https://phab.mercurial-scm.org/D11505
--- a/mercurial/dirstate.py Wed Sep 22 09:46:37 2021 +0200
+++ b/mercurial/dirstate.py Wed Sep 22 15:17:12 2021 +0200
@@ -381,39 +381,10 @@
oldp2 = self._pl[1]
if self._origpl is None:
self._origpl = self._pl
- self._map.setparents(p1, p2)
- copies = {}
nullid = self._nodeconstants.nullid
- if oldp2 != nullid and p2 == nullid:
- candidatefiles = self._map.non_normal_or_other_parent_paths()
-
- for f in candidatefiles:
- s = self._map.get(f)
- if s is None:
- continue
-
- # Discard "merged" markers when moving away from a merge state
- if s.merged:
- source = self._map.copymap.get(f)
- if source:
- copies[f] = source
- self._map.reset_state(
- f,
- wc_tracked=True,
- p1_tracked=True,
- possibly_dirty=True,
- )
- # Also fix up otherparent markers
- elif s.from_p2:
- source = self._map.copymap.get(f)
- if source:
- copies[f] = source
- self._map.reset_state(
- f,
- p1_tracked=False,
- wc_tracked=True,
- )
- return copies
+ # True if we need to fold p2 related state back to a linear case
+ fold_p2 = oldp2 != nullid and p2 == nullid
+ return self._map.setparents(p1, p2, fold_p2=fold_p2)
def setbranch(self, branch):
self.__class__._branch.set(self, encoding.fromlocal(branch))
--- a/mercurial/dirstatemap.py Wed Sep 22 09:46:37 2021 +0200
+++ b/mercurial/dirstatemap.py Wed Sep 22 15:17:12 2021 +0200
@@ -428,9 +428,40 @@
return self._parents
- def setparents(self, p1, p2):
+ def setparents(self, p1, p2, fold_p2=False):
self._parents = (p1, p2)
self._dirtyparents = True
+ copies = {}
+ if fold_p2:
+ candidatefiles = self.non_normal_or_other_parent_paths()
+
+ for f in candidatefiles:
+ s = self.get(f)
+ if s is None:
+ continue
+
+ # Discard "merged" markers when moving away from a merge state
+ if s.merged:
+ source = self.copymap.get(f)
+ if source:
+ copies[f] = source
+ self.reset_state(
+ f,
+ wc_tracked=True,
+ p1_tracked=True,
+ possibly_dirty=True,
+ )
+ # Also fix up otherparent markers
+ elif s.from_p2:
+ source = self.copymap.get(f)
+ if source:
+ copies[f] = source
+ self.reset_state(
+ f,
+ p1_tracked=False,
+ wc_tracked=True,
+ )
+ return copies
def read(self):
# ignore HG_PENDING because identity is used only for writing
@@ -769,9 +800,40 @@
# File doesn't exist, so the current state is empty
return b''
- def setparents(self, p1, p2):
+ def setparents(self, p1, p2, fold_p2=False):
self._parents = (p1, p2)
self._dirtyparents = True
+ copies = {}
+ if fold_p2:
+ candidatefiles = self.non_normal_or_other_parent_paths()
+
+ for f in candidatefiles:
+ s = self.get(f)
+ if s is None:
+ continue
+
+ # Discard "merged" markers when moving away from a merge state
+ if s.merged:
+ source = self.copymap.get(f)
+ if source:
+ copies[f] = source
+ self.reset_state(
+ f,
+ wc_tracked=True,
+ p1_tracked=True,
+ possibly_dirty=True,
+ )
+ # Also fix up otherparent markers
+ elif s.from_p2:
+ source = self.copymap.get(f)
+ if source:
+ copies[f] = source
+ self.reset_state(
+ f,
+ p1_tracked=False,
+ wc_tracked=True,
+ )
+ return copies
def parents(self):
if not self._parents: