FilesExpand file tree

 master

/

args.py

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

119 lines (96 loc) · 4.3 KB

 master

/

args.py

Copy path

Top

File metadata and controls

• Code
• Blame

119 lines (96 loc) · 4.3 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

"""

Module to handle command line argument parsing, for all front-ends.

"""

from __future__ import print_function

import os

import sys

import code

from optparse import OptionParser, OptionGroup

from bpython import __version__

from bpython.config import default_config_path, loadini, Struct

from bpython.translations import _

class OptionParserFailed(ValueError):

"""Raised by the RaisingOptionParser for a bogus commandline."""

class RaisingOptionParser(OptionParser):

def error(self, msg):

raise OptionParserFailed()

def version_banner():

return 'bpython version %s on top of Python %s %s' % (

__version__, sys.version.split()[0], sys.executable)

def parse(args, extras=None, ignore_stdin=False):

"""Receive an argument list - if None, use sys.argv - parse all args and

take appropriate action. Also receive optional extra options: this should

be a tuple of (title, description, options)

title: The title for the option group

description: A full description of the option group

options: A list of optparse.Option objects to be added to the

group

e.g.:

parse(

['-i', '-m', 'foo.py'],

('Front end-specific options',

'A full description of what these options are for',

[optparse.Option('-f', action='store_true', dest='f', help='Explode'),

optparse.Option('-l', action='store_true', dest='l', help='Love')]))

Return a tuple of (config, options, exec_args) wherein "config" is the

config object either parsed from a default/specified config file or default

config options, "options" is the parsed options from

OptionParser.parse_args, and "exec_args" are the args (if any) to be parsed

to the executed file (if any).

"""

if args is None:

args = sys.argv[1:]

parser = RaisingOptionParser(

usage=_('Usage: %prog [options] [file [args]]\n'

'NOTE: If bpython sees an argument it does '

'not know, execution falls back to the '

'regular Python interpreter.'))

# This is not sufficient if bpython gains its own -m support

# (instead of falling back to Python itself for that).

# That's probably fixable though, for example by having that

# option swallow all remaining arguments in a callback.

parser.disable_interspersed_args()

parser.add_option('--config', default=default_config_path(),

help=_('Use CONFIG instead of default config file.'))

parser.add_option('--interactive', '-i', action='store_true',

help=_('Drop to bpython shell after running file '

'instead of exiting.'))

parser.add_option('--quiet', '-q', action='store_true',

help=_("Don't flush the output to stdout."))

parser.add_option('--version', '-V', action='store_true',

help=_('Print version and exit.'))

if extras is not None:

extras_group = OptionGroup(parser, extras[0], extras[1])

for option in extras[2]:

extras_group.add_option(option)

parser.add_option_group(extras_group)

try:

options, args = parser.parse_args(args)

except OptionParserFailed:

# Just let Python handle this

os.execv(sys.executable, [sys.executable] + args)

if options.version:

print('bpython version', __version__, end=" ")

print('on top of Python', sys.version.split()[0])

print('(C) 2008-2015 Bob Farrell, Andreas Stuehrk et al. '

'See AUTHORS for detail.')

raise SystemExit

if not ignore_stdin and not (sys.stdin.isatty() and sys.stdout.isatty()):

interpreter = code.InteractiveInterpreter()

interpreter.runsource(sys.stdin.read())

raise SystemExit

config = Struct()

loadini(config, options.config)

return config, options, args

def exec_code(interpreter, args):

"""

Helper to execute code in a given interpreter. args should be a [faked]

sys.argv

"""

with open(args[0], 'r') as sourcefile:

source = sourcefile.read()

old_argv, sys.argv = sys.argv, args

sys.path.insert(0, os.path.abspath(os.path.dirname(args[0])))

interpreter.locals['__file__'] = args[0]

interpreter.runsource(source, args[0], 'exec')

sys.argv = old_argv