# HG changeset patch
# User Nicolas Dumazet <nicdumz.commits@gmail.com>
# Date 2009-12-01 02:28:31
# Node ID 2bfe1a23dafa31701ce1946ba339480d8a5b1fdd
# Parent  a9836feb5a8cec57d4ac30583d6637a3b219da87

cmdutil: service: add appendpid parameter to append pids to pid file

diff --git a/mercurial/cmdutil.py b/mercurial/cmdutil.py
--- a/mercurial/cmdutil.py
+++ b/mercurial/cmdutil.py
@@ -558,7 +558,7 @@ def copy(ui, repo, pats, opts, rename=Fa
     return errors
 
 def service(opts, parentfn=None, initfn=None, runfn=None, logfile=None,
-    runargs=None):
+    runargs=None, appendpid=False):
     '''Run a command as a service.'''
 
     if opts['daemon'] and not opts['daemon_pipefds']:
@@ -588,7 +588,8 @@ def service(opts, parentfn=None, initfn=
         initfn()
 
     if opts['pid_file']:
-        fp = open(opts['pid_file'], 'w')
+        mode = appendpid and 'a' or 'w'
+        fp = open(opts['pid_file'], mode)
         fp.write(str(os.getpid()) + '\n')
         fp.close()