75 lines
1.7 KiB
Python
Executable File
75 lines
1.7 KiB
Python
Executable File
#!/usr/bin/env python
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import subprocess
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from StringIO import StringIO
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import re
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import sys
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import os.path
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class Option:
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def __init__(self, long_opt, short_opt):
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self.long_opt = long_opt
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self.short_opt = short_opt
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def get_all_options(cmd):
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opt_pattern = re.compile(r' (?:(-.), )?(--[^\s\[=]+)(\[)?')
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proc = subprocess.Popen([cmd, "--help"], stdout=subprocess.PIPE)
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stdoutdata, stderrdata = proc.communicate()
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cur_option = None
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opts = {}
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for line in StringIO(stdoutdata):
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match = opt_pattern.match(line)
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if not match:
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continue
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long_opt = match.group(2)
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short_opt = match.group(1)
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opts[long_opt] = Option(long_opt, short_opt)
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return opts
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def output_case(out, name, opts):
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out.write('''\
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_{name}()
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{{
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local cur prev split=false
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COMPREPLY=()
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COMP_WORDBREAKS=${{COMP_WORDBREAKS//=}}
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cmd=${{COMP_WORDS[0]}}
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_get_comp_words_by_ref cur prev
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'''.format(name=name))
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# Complete option name.
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out.write('''\
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case $cur in
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-*)
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COMPREPLY=( $( compgen -W '\
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''')
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for opt in opts.itervalues():
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out.write(opt.long_opt)
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out.write(' ')
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out.write('''\
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' -- "$cur" ) )
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;;
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''')
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# If no option found for completion then complete with files.
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out.write('''\
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*)
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_filedir
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return 0
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esac
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return 0
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}}
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complete -F _{name} {name}
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'''.format(name=name))
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if __name__ == '__main__':
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if len(sys.argv) < 2:
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print "Generates bash_completion using `/path/to/cmd --help'"
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print "Usage: make_bash_completion.py /path/to/cmd"
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exit(1)
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name = os.path.basename(sys.argv[1])
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opts = get_all_options(sys.argv[1])
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output_case(sys.stdout, name, opts)
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