diff mercurial/commands.py @ 11524:24965bb270b7

dispatch: add shell aliases

This patch adds git-style "shell aliases" to Mercurial.

Any alias with a definition beginning with a '!' will be treated as a shell
alias. For example:

    [alias]
    echo = !echo
    qempty = !hg qrefresh -X "`hg root`" ; echo Emptied patch "`hg qtop`"

    $ hg echo foo
    foo
    $ hg qempty
    Emptied patch foo
    $

--- a/mercurial/commands.py	Wed Jul 07 14:29:40 2010 +0200
+++ b/mercurial/commands.py	Wed Jul 07 18:49:43 2010 -0400
@@ -1866,7 +1866,10 @@
         if not doc:
             doc = _("(no help text available)")
         if hasattr(entry[0], 'definition'):  # aliased command
-            doc = _('alias for: hg %s\n\n%s') % (entry[0].definition, doc)
+            if entry[0].definition.startswith('!'):  # shell alias
+                doc = _('shell alias for::\n\n    %s') % entry[0].definition[1:]
+            else:
+                doc = _('alias for: hg %s\n\n%s') % (entry[0].definition, doc)
         if ui.quiet:
             doc = doc.splitlines()[0]
         keep = ui.verbose and ['verbose'] or []