comparison setup.py @ 50936:6408777c8fa4

branching: merge stable into default

50929:18c8c18993f0

    # Run a simple "hg log" command just to see if using hg from the user's
    # path works and can successfully interact with this repository.  Windows
    # gives precedence to hg.exe in the current directory, so fall back to the
    # python invocation of local hg, where pythonXY.dll can always be found.
    check_cmd = ['log', '-r.', '-Ttest']
    if os.name != 'nt' or not os.path.exists("hg.exe"):
        try:
            retcode, out, err = runcmd(hgcmd + check_cmd, hgenv)
        except EnvironmentError:
            retcode = -1
        if retcode == 0 and not filterhgerr(err):
            return hgcommand(hgcmd, hgenv)

    # Fall back to trying the local hg installation.
    hgenv = localhgenv()
    hgcmd = [sys.executable, 'hg']
    try:
        retcode, out, err = runcmd(hgcmd + check_cmd, hgenv)
    except EnvironmentError:
        retcode = -1
    if retcode == 0 and not filterhgerr(err):
        return hgcommand(hgcmd, hgenv)

    eprint("/!\\")
    eprint(r"/!\ Unable to find a working hg binary")
    eprint(r"/!\ Version cannot be extract from the repository")
    eprint(r"/!\ Re-run the setup once a first version is built")
    return None


def localhgenv():
    """Get an environment dictionary to use for invoking or importing

50936:6408777c8fa4

    # Run a simple "hg log" command just to see if using hg from the user's
    # path works and can successfully interact with this repository.  Windows
    # gives precedence to hg.exe in the current directory, so fall back to the
    # python invocation of local hg, where pythonXY.dll can always be found.
    check_cmd = ['log', '-r.', '-Ttest']
    attempts = []

    def attempt(cmd, env):
        try:
            retcode, out, err = runcmd(hgcmd + check_cmd, hgenv)
            res = (True, retcode, out, err)
            if retcode == 0 and not filterhgerr(err):
                return True
        except EnvironmentError as e:
            res = (False, e)
        attempts.append((cmd, res))
        return False

    if os.name != 'nt' or not os.path.exists("hg.exe"):
        if attempt(hgcmd + check_cmd, hgenv):
            return hgcommand(hgcmd, hgenv)

    # Fall back to trying the local hg installation.
    hgenv = localhgenv()
    hgcmd = [sys.executable, 'hg']
    if attempt(hgcmd + check_cmd, hgenv):
        return hgcommand(hgcmd, hgenv)

    eprint("/!\\")
    eprint(r"/!\ Unable to find a working hg binary")
    eprint(r"/!\ Version cannot be extracted from the repository")
    eprint(r"/!\ Re-run the setup once a first version is built")
    eprint(r"/!\ Attempts:")
    for i, e in enumerate(attempts):
        eprint(r"/!\   attempt #%d:" % (i))
        eprint(r"/!\     cmd:        ", e[0])
        res = e[1]
        if res[0]:
            eprint(r"/!\     return code:", res[1])
            eprint("/!\\     std output:\n%s" % (res[2].decode()), end="")
            eprint("/!\\     std error:\n%s" % (res[3].decode()), end="")
        else:
            eprint(r"/!\     exception:  ", res[1])
    return None


def localhgenv():
    """Get an environment dictionary to use for invoking or importing