view tests/dummyssh @ 49944:8f76a41ee465

debugshell: allow commands to be specified as a CLI argument

Add a `--command` option to `hg debugshell` that allows the user to pass in
Python code to evaluate directly from the command line. This was inspired by
the `--command` option present in Facebook's Sapling fork of Mercurial,
which in turn was inspired by the `-c` option of the Python interpreter
itself. It is particularly useful for writing tests, especially for getting
visibility into things that otherwise aren't exposed via debug commands.

#!/usr/bin/env python3


import os
import shlex
import subprocess
import sys

os.chdir(os.getenv('TESTTMP'))

if sys.argv[1] != "user@dummy":
    sys.exit(-1)

os.environ["SSH_CLIENT"] = "%s 1 2" % os.environ.get('LOCALIP', '127.0.0.1')

log = open("dummylog", "ab")
log.write(b"Got arguments")
for i, arg in enumerate(sys.argv[1:]):
    log.write(b" %d:%s" % (i + 1, arg.encode('latin1')))
log.write(b"\n")
log.close()
hgcmd = sys.argv[2]
if os.name == 'nt':
    # hack to make simple unix single quote quoting work on windows
    hgcmd = hgcmd.replace("'", '"')
    cmds = shlex.split(hgcmd)
    if cmds[0].endswith('.py'):
        python_exe = os.environ['PYTHON']
        cmds.insert(0, python_exe)
    hgcmd = shlex.join(cmds)
    # shlex generate windows incompatible string...
    hgcmd = hgcmd.replace("'", '"')
r = subprocess.call(hgcmd, shell=True, close_fds=True)
sys.exit(bool(r))