[PATCH 2 of 3] commands.debugindexdot: use cmdutil.openrevlog()

[Gregory Szorc]

# HG changeset patch
# User Gregory Szorc <gregory.szorc at gmail.com>
# Date 1449380438 28800
#      Sat Dec 05 21:40:38 2015 -0800
# Node ID 860794fcdaf0794f1f08d1620f0421d1eec96b6d
# Parent  36a0e4caa4bfaf0a7040c6e8652271d7c4672b03
commands.debugindexdot: use cmdutil.openrevlog()

This pattern is used for all the other debug* commands that operate
on revlogs. debugindexdot is an outlier. Make it conform.

diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -2466,26 +2466,21 @@ def debugindex(ui, repo, file_=None, **o
                     i, r.start(i), r.length(i), base, r.linkrev(i),
                     shortfn(node), shortfn(pp[0]), shortfn(pp[1])))
         elif format == 1:
             pr = r.parentrevs(i)
             ui.write("% 6d %04x % 8d % 8d % 8d % 6d % 6d % 6d % 6d %s\n" % (
                     i, r.flags(i), r.start(i), r.length(i), r.rawsize(i),
                     base, r.linkrev(i), pr[0], pr[1], shortfn(node)))
 
- at command('debugindexdot', [], _('FILE'), optionalrepo=True)
-def debugindexdot(ui, repo, file_):
+ at command('debugindexdot', debugrevlogopts,
+    _('-c|-m|FILE'), optionalrepo=True)
+def debugindexdot(ui, repo, file_=None, **opts):
     """dump an index DAG as a graphviz dot file"""
-    r = None
-    if repo:
-        filelog = repo.file(file_)
-        if len(filelog):
-            r = filelog
-    if not r:
-        r = revlog.revlog(scmutil.opener(os.getcwd(), audit=False), file_)
+    r = cmdutil.openrevlog(repo, 'debugindexdot', file_, opts)
     ui.write(("digraph G {\n"))
     for i in r:
         node = r.node(i)
         pp = r.parents(node)
         ui.write("\t%d -> %d\n" % (r.rev(pp[0]), i))
         if pp[1] != nullid:
             ui.write("\t%d -> %d\n" % (r.rev(pp[1]), i))
     ui.write("}\n")
diff --git a/tests/test-completion.t b/tests/test-completion.t
--- a/tests/test-completion.t
+++ b/tests/test-completion.t
@@ -246,17 +246,17 @@ Show all commands + options
   debugdirstate: nodates, datesort
   debugdiscovery: old, nonheads, ssh, remotecmd, insecure
   debugextensions: template
   debugfileset: rev
   debugfsinfo: 
   debuggetbundle: head, common, type
   debugignore: 
   debugindex: changelog, manifest, dir, format
-  debugindexdot: 
+  debugindexdot: changelog, manifest, dir
   debuginstall: 
   debugknown: 
   debuglabelcomplete: 
   debuglocks: force-lock, force-wlock
   debugmergestate: 
   debugnamecomplete: 
   debugobsolete: flags, record-parents, rev, date, user
   debugpathcomplete: full, normal, added, removed