view contrib/debugcmdserver.py @ 20176:4c96c50ef937

subrepo: check phase of state in each subrepositories before committing

Before this patch, phase of newly created commit is determined by
"phases.new-commit" configuration regardless of phase of state in each
subrepositories.

For example, this may cause the "public" revision in the parent
repository referring the "secret" one in subrepository.

This patch checks phase of state in each subrepositories before
committing in the parent, and aborts or changes phase of newly created
commit if subrepositories have more restricted phase than the parent.

This patch uses "follow" as default value of "phases.checksubrepos"
configuration, because it can keep consistency between phases of the
parent and subrepositories without breaking existing tool chains.

#!/usr/bin/env python
#
# 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'

import sys, struct

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()