Mercurial > public > mercurial-scm > hg

diff mercurial/commands.py @ 18790:1e28a7f58f33

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completion: add a debuglabelcomplete command When completing a "label" (a symbolic name for a commit), the bash_completion script currently has to invoke hg three times. For a large repository, the cost of starting up and loading all the necessary context over and over is very high. For instance, in mozilla-central: time (export HGPLAIN=1; hg tags -q; hg bookmarks -q; hg branches) >/dev/null 0.446 sec Compare with the debuglabelcomplete command that this commit adds: time hg debuglabelcomplete >/dev/null 0.148 sec This greatly helps responsiveness.
author Bryan O'Sullivan <bryano@fb.com>
date Thu, 21 Mar 2013 10:51:18 -0700
parents b99e62a9b7a2
children 10669e24eb6c
line wrap: on
line diff
--- a/mercurial/commands.py	Thu Mar 21 09:13:16 2013 -0700
+++ b/mercurial/commands.py	Thu Mar 21 10:51:18 2013 -0700
@@ -2072,6 +2072,22 @@
     flags = repo.known([bin(s) for s in ids])
     ui.write("%s\n" % ("".join([f and "1" or "0" for f in flags])))
 
+@command('debuglabelcomplete', [], _('LABEL...'))
+def debuglabelcomplete(ui, repo, *args):
+    '''complete "labels" - tags, open branch names, bookmark names'''
+
+    labels = set()
+    labels.update(t[0] for t in repo.tagslist())
+    labels.update(repo[n].branch() for n in repo.heads())
+    labels.update(repo._bookmarks.keys())
+    completions = set()
+    if not args:
+        args = ['']
+    for a in args:
+        completions.update(l for l in labels if l.startswith(a))
+    ui.write('\n'.join(sorted(completions)))
+    ui.write('\n')
+
 @command('debugobsolete',
         [('', 'flags', 0, _('markers flag')),
         ] + commitopts2,