facebook/sapling
1
1
Fork 0
mirror of https://github.com/facebook/sapling.git synced 2024-10-07 23:38:50 +03:00
Code Issues Projects Releases Wiki Activity

chgserver: make S channel support pager request

Browse Source 
This patch adds the "pager" support for the S channel. The pager API allows
running some subcommands, namely attachio, and waiting for the client to be
properly synchronized.
This commit is contained in:
Jun Wu 2017-01-10 06:59:21 +08:00
parent 5ae59a4110
commit ed9bebc440
1 changed files with 15 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
mercurial/chgserver.py
View File

@ -287,13 +287,17 @@ class channeledsystem(object):
exitcode length (unsigned int),
exitcode (int)
if type == 'pager', repetitively waits for a command name ending with '\n'
and executes it defined by cmdtable, or exits the loop if the command name
is empty.
"""
def __init__(self, in_, out, channel):
self.in_ = in_
self.out = out
self.channel = channel
def __call__(self, cmd, environ, cwd, type='system'):
def __call__(self, cmd, environ, cwd=None, type='system', cmdtable=None):
args = [type, util.quotecommand(cmd), os.path.abspath(cwd or '.')]
args.extend('%s=%s' % (k, v) for k, v in environ.iteritems())
data = '\0'.join(args)
@ -308,6 +312,16 @@ class channeledsystem(object):
raise error.Abort(_('invalid response'))
rc, = struct.unpack('>i', self.in_.read(4))
return rc
elif type == 'pager':
while True:
cmd = self.in_.readline()[:-1]
if not cmd:
break
if cmdtable and cmd in cmdtable:
_log('pager subcommand: %s' % cmd)
cmdtable[cmd]()
else:
raise error.Abort(_('unexpected command: %s') % cmd)
else:
raise error.ProgrammingError('invalid S channel type: %s' % type)