visibility: improve the message when accessing filtered obsolete rev
When trying to access filtered revision, it is likely because they have been
obsoleted by an obs-marker. The current message shows how to access the
revision anyway:
abort: hidden revision '13bedc178fce'!
But in the case of an obsoleted revision, the user is likely to want to update
to or use the successor of the revision.
We update the message to display more information about the obsolescence fate
of the revision in the following cases:
abort: hidden revision '13bedc178fce' is pruned!
abort: hidden revision '13bedc178fce' has diverged!
abort: hidden revision '13bedc178fce' was rewritten as X, Y and 2 more!
Differential Revision: https://phab.mercurial-scm.org/D1591
#!/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'
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()