# HG changeset patch
# User Matt Mackall <mpm@selenic.com>
# Date 2011-04-04 21:21:59
# Node ID a8d13ee0ce68ff44ec464c19e6b193f1238d3833
# Parent  653121e6941f9fafcd2a7c9063b18f98ec66aa48

misc: replace .parents()[0] with p1()

diff --git a/contrib/python-hook-examples.py b/contrib/python-hook-examples.py
--- a/contrib/python-hook-examples.py
+++ b/contrib/python-hook-examples.py
@@ -13,7 +13,7 @@ def diffstat(ui, repo, **kwargs):
     if kwargs.get('parent2'):
         return
     node = kwargs['node']
-    first = repo[node].parents()[0].node()
+    first = repo[node].p1().node()
     if 'url' in kwargs:
         last = repo['tip'].node()
     else:
diff --git a/hgext/extdiff.py b/hgext/extdiff.py
--- a/hgext/extdiff.py
+++ b/hgext/extdiff.py
@@ -126,7 +126,7 @@ def dodiff(ui, repo, diffcmd, diffopts, 
     else:
         node1a, node2 = cmdutil.revpair(repo, revs)
         if not revs:
-            node1b = repo.dirstate.parents()[1]
+            node1b = repo.dirstate.p2()
         else:
             node1b = nullid
 
diff --git a/hgext/hgcia.py b/hgext/hgcia.py
--- a/hgext/hgcia.py
+++ b/hgext/hgcia.py
@@ -75,7 +75,7 @@ class ciamsg(object):
 
     def fileelems(self):
         n = self.ctx.node()
-        f = self.cia.repo.status(self.ctx.parents()[0].node(), n)
+        f = self.cia.repo.status(self.ctx.p1().node(), n)
         url = self.url or ''
         elems = []
         for path in f[0]:
diff --git a/hgext/mq.py b/hgext/mq.py
--- a/hgext/mq.py
+++ b/hgext/mq.py
@@ -899,7 +899,7 @@ class queue(object):
                 else:
                     p.write("# HG changeset patch\n")
                     p.write("# Parent "
-                            + hex(repo[None].parents()[0].node()) + "\n")
+                            + hex(repo[None].p1().node()) + "\n")
                     if user:
                         p.write("# User " + user + "\n")
                     if date:
@@ -1054,7 +1054,7 @@ class queue(object):
                 heads += ls
             if not heads:
                 heads = [nullid]
-            if repo.dirstate.parents()[0] not in heads and not exact:
+            if repo.dirstate.p1() not in heads and not exact:
                 self.ui.status(_("(working directory not at a head)\n"))
 
             if not self.series:
@@ -1148,7 +1148,7 @@ class queue(object):
                     ret = self.apply(repo, s, list, all_files=all_files)
             except:
                 self.ui.warn(_('cleaning up working directory...'))
-                node = repo.dirstate.parents()[0]
+                node = repo.dirstate.p1()
                 hg.revert(repo, node, None)
                 # only remove unknown files that we know we touched or
                 # created while patching
diff --git a/hgext/notify.py b/hgext/notify.py
--- a/hgext/notify.py
+++ b/hgext/notify.py
@@ -249,7 +249,7 @@ class notifier(object):
     def diff(self, ctx, ref=None):
 
         maxdiff = int(self.ui.config('notify', 'maxdiff', 300))
-        prev = ctx.parents()[0].node()
+        prev = ctx.p1().node()
         ref = ref and ref.node() or ctx.node()
         chunks = patch.diff(self.repo, prev, ref, opts=patch.diffopts(self.ui))
         difflines = ''.join(chunks).splitlines()
diff --git a/hgext/rebase.py b/hgext/rebase.py
--- a/hgext/rebase.py
+++ b/hgext/rebase.py
@@ -300,7 +300,7 @@ def rebasenode(repo, rev, p1, p2, state)
     repo.ui.debug(" merge against %d:%s\n" % (repo[rev].rev(), repo[rev]))
     base = None
     if repo[rev].rev() != repo[min(state)].rev():
-        base = repo[rev].parents()[0].node()
+        base = repo[rev].p1().node()
     return merge.update(repo, rev, True, True, False, base)
 
 def defineparents(repo, rev, target, state, targetancestors):
diff --git a/hgext/record.py b/hgext/record.py
--- a/hgext/record.py
+++ b/hgext/record.py
@@ -469,7 +469,7 @@ def dorecord(ui, repo, commitfunc, *pats
 
             # 3a. apply filtered patch to clean repo  (clean)
             if backups:
-                hg.revert(repo, repo.dirstate.parents()[0],
+                hg.revert(repo, repo.dirstate.p1(),
                           lambda key: key in backups)
 
             # 3b. (apply)
diff --git a/hgext/transplant.py b/hgext/transplant.py
--- a/hgext/transplant.py
+++ b/hgext/transplant.py
@@ -237,7 +237,7 @@ class transplanter(object):
                 seriespath = os.path.join(self.path, 'series')
                 if os.path.exists(seriespath):
                     os.unlink(seriespath)
-                p1 = repo.dirstate.parents()[0]
+                p1 = repo.dirstate.p1()
                 p2 = node
                 self.log(user, date, message, p1, p2, merge=merge)
                 self.ui.write(str(inst) + '\n')
diff --git a/mercurial/cmdutil.py b/mercurial/cmdutil.py
--- a/mercurial/cmdutil.py
+++ b/mercurial/cmdutil.py
@@ -72,7 +72,7 @@ def findrepo(p):
     return p
 
 def bail_if_changed(repo):
-    if repo.dirstate.parents()[1] != nullid:
+    if repo.dirstate.p2() != nullid:
         raise util.Abort(_('outstanding uncommitted merge'))
     modified, added, removed, deleted = repo.status()[:4]
     if modified or added or removed or deleted:
@@ -122,12 +122,12 @@ def revsingle(repo, revspec, default='.'
 
 def revpair(repo, revs):
     if not revs:
-        return repo.dirstate.parents()[0], None
+        return repo.dirstate.p1(), None
 
     l = revrange(repo, revs)
 
     if len(l) == 0:
-        return repo.dirstate.parents()[0], None
+        return repo.dirstate.p1(), None
 
     if len(l) == 1:
         return repo.lookup(l[0]), None
diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -596,7 +596,7 @@ def branch(ui, repo, label=None, **opts)
     """
 
     if opts.get('clean'):
-        label = repo[None].parents()[0].branch()
+        label = repo[None].p1().branch()
         repo.dirstate.setbranch(label)
         ui.status(_('reset working directory to branch %s\n') % label)
     elif label:
@@ -1678,7 +1678,7 @@ def diff(ui, repo, *pats, **opts):
         raise util.Abort(msg)
     elif change:
         node2 = cmdutil.revsingle(repo, change, None).node()
-        node1 = repo[node2].parents()[0].node()
+        node1 = repo[node2].p1().node()
     else:
         node1, node2 = cmdutil.revpair(repo, revs)
 
@@ -1905,7 +1905,7 @@ def grep(ui, repo, pattern, *pats, **opt
 
     def prep(ctx, fns):
         rev = ctx.rev()
-        pctx = ctx.parents()[0]
+        pctx = ctx.p1()
         parent = pctx.rev()
         matches.setdefault(rev, {})
         matches.setdefault(parent, {})
@@ -1940,7 +1940,7 @@ def grep(ui, repo, pattern, *pats, **opt
 
     for ctx in cmdutil.walkchangerevs(repo, matchfn, opts, prep):
         rev = ctx.rev()
-        parent = ctx.parents()[0].rev()
+        parent = ctx.p1().rev()
         for fn in sorted(revfiles.get(rev, [])):
             states = matches[rev][fn]
             copy = copies.get(rev, {}).get(fn)
@@ -2840,7 +2840,7 @@ def merge(ui, repo, node=None, **opts):
                 '(run \'hg heads .\' to see heads)')
                 % (branch, len(bheads)))
 
-        parent = repo.dirstate.parents()[0]
+        parent = repo.dirstate.p1()
         if len(bheads) == 1:
             if len(repo.heads()) > 1:
                 raise util.Abort(_(
@@ -3751,7 +3751,7 @@ def status(ui, repo, *pats, **opts):
         raise util.Abort(msg)
     elif change:
         node2 = repo.lookup(change)
-        node1 = repo[node2].parents()[0].node()
+        node1 = repo[node2].p1().node()
     else:
         node1, node2 = cmdutil.revpair(repo, revs)
 
diff --git a/mercurial/copies.py b/mercurial/copies.py
--- a/mercurial/copies.py
+++ b/mercurial/copies.py
@@ -93,7 +93,7 @@ def copies(repo, c1, c2, ca, checkdirs=F
         return {}, {}
 
     # avoid silly behavior for parent -> working dir
-    if c2.node() is None and c1.node() == repo.dirstate.parents()[0]:
+    if c2.node() is None and c1.node() == repo.dirstate.p1():
         return repo.dirstate.copies(), {}
 
     limit = _findlimit(repo, c1.rev(), c2.rev())
diff --git a/mercurial/localrepo.py b/mercurial/localrepo.py
--- a/mercurial/localrepo.py
+++ b/mercurial/localrepo.py
@@ -522,7 +522,7 @@ class localrepository(repo.repository):
         if isinstance(key, int):
             return self.changelog.node(key)
         elif key == '.':
-            return self.dirstate.parents()[0]
+            return self.dirstate.p1()
         elif key == 'null':
             return nullid
         elif key == 'tip':
diff --git a/mercurial/merge.py b/mercurial/merge.py
--- a/mercurial/merge.py
+++ b/mercurial/merge.py
@@ -268,7 +268,7 @@ def applyupdates(repo, action, wctx, mct
 
     updated, merged, removed, unresolved = 0, 0, 0, 0
     ms = mergestate(repo)
-    ms.reset(wctx.parents()[0].node())
+    ms.reset(wctx.p1().node())
     moves = []
     action.sort(key=actionkey)
     substate = wctx.substate # prime
@@ -286,7 +286,7 @@ def applyupdates(repo, action, wctx, mct
             fco = mctx[f2]
             if mctx == actx: # backwards, use working dir parent as ancestor
                 if fcl.parents():
-                    fca = fcl.parents()[0]
+                    fca = fcl.p1()
                 else:
                     fca = repo.filectx(f, fileid=nullrev)
             else:
diff --git a/mercurial/patch.py b/mercurial/patch.py
--- a/mercurial/patch.py
+++ b/mercurial/patch.py
@@ -1324,7 +1324,7 @@ def diff(repo, node1=None, node2=None, m
         opts = mdiff.defaultopts
 
     if not node1 and not node2:
-        node1 = repo.dirstate.parents()[0]
+        node1 = repo.dirstate.p1()
 
     def lrugetfilectx():
         cache = {}
diff --git a/mercurial/revset.py b/mercurial/revset.py
--- a/mercurial/revset.py
+++ b/mercurial/revset.py
@@ -207,7 +207,7 @@ def p1(repo, subset, x):
     First parent of changesets in set, or the working directory.
     """
     if x is None:
-        p = repo[x].parents()[0].rev()
+        p = repo[x].p1().rev()
         return [r for r in subset if r == p]
 
     ps = set()
diff --git a/mercurial/templatekw.py b/mercurial/templatekw.py
--- a/mercurial/templatekw.py
+++ b/mercurial/templatekw.py
@@ -73,8 +73,7 @@ def showlist(name, values, plural=None, 
 
 def getfiles(repo, ctx, revcache):
     if 'files' not in revcache:
-        revcache['files'] = repo.status(ctx.parents()[0].node(),
-                                        ctx.node())[:3]
+        revcache['files'] = repo.status(ctx.p1().node(), ctx.node())[:3]
     return revcache['files']
 
 def getlatesttags(repo, ctx, cache):