contrib/debugcmdserver.py
author Martin von Zweigbergk <martinvonz@google.com>
Wed, 09 Dec 2020 09:54:49 -0800
changeset 46083 c80f9e3daec3
parent 45849 c102b704edb5
child 48966 6000f5b25c9b
permissions -rwxr-xr-x
share: remove unexpected heading from "verbose" container in help test `test-gendoc-*.t` have been failing for me since 91425656e2b1 (share: add documentation about share-safe mode in `hg help -e share`, 2020-11-27) with this kind of output: ``` --- /usr/local/google/home/martinvonz/hg/tests/test-gendoc-ru.t +++ /usr/local/google/home/martinvonz/hg/tests/test-gendoc-ru.t.err @@ -2,3 +2,9 @@ $ $TESTDIR/check-gendoc ru checking for parse errors + gendoc.txt:12818: (SEVERE/4) Unexpected section title. + + Sharing requirements and configs of source repository with shares + ----------------------------------------------------------------- + Exiting due to level-4 (SEVERE) system message. + [1] ``` This patch fixes that. Differential Revision: https://phab.mercurial-scm.org/D9552

#!/usr/bin/env python3
#
# Dumps output generated by Mercurial's command server in a formatted style to a
# given file or stderr if '-' is specified. Output is also written in its raw
# format to stdout.
#
# $ ./hg serve --cmds pipe | ./contrib/debugcmdserver.py -
# o, 52   -> 'capabilities: getencoding runcommand\nencoding: UTF-8'

from __future__ import absolute_import, print_function
import struct
import sys

if len(sys.argv) != 2:
    print('usage: debugcmdserver.py FILE')
    sys.exit(1)

outputfmt = '>cI'
outputfmtsize = struct.calcsize(outputfmt)

if sys.argv[1] == '-':
    log = sys.stderr
else:
    log = open(sys.argv[1], 'a')


def read(size):
    data = sys.stdin.read(size)
    if not data:
        raise EOFError
    sys.stdout.write(data)
    sys.stdout.flush()
    return data


try:
    while True:
        header = read(outputfmtsize)
        channel, length = struct.unpack(outputfmt, header)
        log.write('%s, %-4d' % (channel, length))
        if channel in 'IL':
            log.write(' -> waiting for input\n')
        else:
            data = read(length)
            log.write(' -> %r\n' % data)
        log.flush()
except EOFError:
    pass
finally:
    if log != sys.stderr:
        log.close()