view mercurial/fancyopts.py @ 293:11d64332a1cb

hg help improvements

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hg help improvements

Handle showing option help in commands.py rather than fancyopts
Show getopt exception string if argument parsing fails and call help
Show help for invalid arguments
Show exception string for invalid arguments with -d

manifest hash: 9bd3e908cc080c21bb5e85822f675c35a8396fef
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import sys, os, getopt

def fancyopts(args, options, state, syntax='', minlen = 0):
    long=[]
    short=''
    map={}
    dt={}

    for s, l, d, c in options:
        map['-'+s] = map['--'+l]=l
        state[l] = d
        dt[l] = type(d)
        if not d is None and not callable(d): s, l=s+':', l+'='      
        if s: short = short + s
        if l: long.append(l)

    if os.environ.has_key("HG_OPTS"):
        args = os.environ["HG_OPTS"].split() + args

    opts, args = getopt.getopt(args, short, long)

    for opt, arg in opts:
        if dt[map[opt]] is type(fancyopts): state[map[opt]](state,map[opt],arg)
        elif dt[map[opt]] is type(1): state[map[opt]] = int(arg)
        elif dt[map[opt]] is type(''): state[map[opt]] = arg
        elif dt[map[opt]] is type([]): state[map[opt]].append(arg)
        elif dt[map[opt]] is type(None): state[map[opt]] = 1

    return args