[PATCH 08 of 10] outgoing: introduce "outgoinghooks" to avoid redundant outgoing check

[FUJIWARA Katsunori]

# HG changeset patch
# User FUJIWARA Katsunori <foozy at lares.dti.ne.jp>
# Date 1394019743 -32400
#      Wed Mar 05 20:42:23 2014 +0900
# Node ID 98753a1c33c34326dcc5a23e8b83b29818e5f54c
# Parent  3fd386676d872e404dce6ca57ce739518a639bcb
outgoing: introduce "outgoinghooks" to avoid redundant outgoing check

This patch introduces "outgoinghooks" to avoid redundant outgoing
check for "hg outgoing" in other than "commands.outgoing" (or utility
functions used by it).

diff --git a/mercurial/cmdutil.py b/mercurial/cmdutil.py
--- a/mercurial/cmdutil.py
+++ b/mercurial/cmdutil.py
@@ -2277,6 +2277,10 @@
 
     return cmd
 
+# a list of (ui, repo, opts, missing) functions called by commands.outgoing.
+# "missing" is "missing" of the result of "findcommonoutgoing()"
+outgoinghooks = util.hooks()
+
 # a list of (ui, repo) functions called by commands.summary
 summaryhooks = util.hooks()
 
diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -4332,6 +4332,7 @@
         cmdutil.checkunsupportedgraphflags([], opts)
         o = hg._outgoing(ui, repo, dest, opts)
         if o is None:
+            cmdutil.outgoinghooks(ui, repo, opts, o)
             return
 
         revdag = cmdutil.graphrevs(repo, o, opts)
@@ -4339,6 +4340,7 @@
         showparents = [ctx.node() for ctx in repo[None].parents()]
         cmdutil.displaygraph(ui, revdag, displayer, showparents,
                              graphmod.asciiedges)
+        cmdutil.outgoinghooks(ui, repo, opts, o)
         return 0
 
     if opts.get('bookmarks'):
diff --git a/mercurial/hg.py b/mercurial/hg.py
--- a/mercurial/hg.py
+++ b/mercurial/hg.py
@@ -575,6 +575,7 @@
     limit = cmdutil.loglimit(opts)
     o = _outgoing(ui, repo, dest, opts)
     if o is None:
+        cmdutil.outgoinghooks(ui, repo, opts, o)
         return recurse()
 
     if opts.get('newest_first'):
@@ -590,6 +591,7 @@
         count += 1
         displayer.show(repo[n])
     displayer.close()
+    cmdutil.outgoinghooks(ui, repo, opts, o)
     recurse()
     return 0 # exit code is zero since we found outgoing changes