[PATCH 5 of 5] Change branches to only show 'active' branches by default. Add an option to show all branches

[Eric Hopper]

# HG changeset patch
# User Eric Hopper <hopper at omnifarious.org>
# Date 1181060557 25200
# Node ID 70dcd512007417bc4494491624c21985afbcdbd2
# Parent  3e2dbd9da8f1f83458467479d401bcd3315e0572
Change branches to only show 'active' branches by default.  Add an option to show all branches.

diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -271,13 +271,18 @@ def branch(ui, repo, label=None, **opts)
     else:
         ui.write("%s\n" % util.tolocal(repo.dirstate.branch()))
 
-def branches(ui, repo):
+def branches(ui, repo, all=False):
     """list repository named branches
 
-    List the repository's named branches.
+    List the repository's named branches. By default omit the
+    branches that have no heads.
     """
     b = repo.branchtags()
-    l = [(-repo.changelog.rev(n), n, t) for t, n in b.items()]
+    if all:
+        l = [(-repo.changelog.rev(n), n, t) for t, n in b.items()]
+    else:
+        heads = dict.fromkeys(repo.heads(), 1)
+        l = [(-repo.changelog.rev(n), n, t) for t, n in b.items() if n in heads]
     l.sort()
     for r, n, t in l:
         hexfunc = ui.debugflag and hex or short
@@ -2720,7 +2725,10 @@ table = {
                [('f', 'force', None,
                  _('set branch name even if it shadows an existing branch'))],
                 _('hg branch [NAME]')),
-    "branches": (branches, [], _('hg branches')),
+    "branches": (branches,
+                 [('a', 'all', False,
+                 _("show even dead branches that have no active heads"))],
+                 _('hg branches [-a]')),
     "bundle":
         (bundle,
          [('f', 'force', None,
diff --git a/tests/test-encoding b/tests/test-encoding
--- a/tests/test-encoding
+++ b/tests/test-encoding
@@ -42,11 +42,11 @@ echo % utf-8
 echo % utf-8
 HGENCODING=utf-8 hg tags
 echo % ascii
-HGENCODING=ascii hg branches
+HGENCODING=ascii hg branches -a
 echo % latin-1
-HGENCODING=latin-1 hg branches
+HGENCODING=latin-1 hg branches -a
 echo % utf-8
-HGENCODING=utf-8 hg branches
+HGENCODING=utf-8 hg branches -a
 
 echo '[ui]' >> .hg/hgrc
 echo 'fallbackencoding = koi8-r' >> .hg/hgrc
diff --git a/tests/test-newbranch b/tests/test-newbranch
--- a/tests/test-newbranch
+++ b/tests/test-newbranch
@@ -2,7 +2,7 @@
 
 hg init t
 cd t
-hg branches
+hg branches -a
 
 echo foo > a
 hg add a
@@ -27,8 +27,8 @@ hg ci -m "merge" -d "1000000 0"
 hg ci -m "merge" -d "1000000 0"
 hg log
 
-hg branches
-hg branches -q
+hg branches -a
+hg branches -qa
 
 echo % test for invalid branch cache
 hg rollback

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