view contrib/debugcmdserver.py @ 26040:97208371715a stable

test-convert-git: work around output format changes in git

git version 2.4.3:
--- /home/augie/hg/tests/test-convert-git.t
+++ /home/augie/hg/tests/test-convert-git.t.err
@@ -659,7 +659,7 @@
   $ touch a && git add a && git commit -am "commit a"
   [master (root-commit) 8ae5f69] commit a
    Author: nottest <[e-mail]>
    1 file changed, 0 insertions(+), 0 deletions(-)
    create mode 100644 a
   $ cd ..
   $ git clone git-repo7 git-repo7-client

git version 1.7.9.5:
--- /home/augie/hg/tests/test-convert-git.t
+++ /home/augie/hg/tests/test-convert-git.t.err
@@ -659,7 +659,7 @@
   $ touch a && git add a && git commit -am "commit a"
   [master (root-commit) 8ae5f69] commit a
    Author: nottest <[e-mail]>
-   1 file changed, 0 insertions(+), 0 deletions(-)
+   0 files changed
    create mode 100644 a
   $ cd ..
   $ git clone git-repo7 git-repo7-client

I don't know when this changed in git and am too lazy to try and
bisect it, so just work around the change.

#!/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()