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comparison makeitso/cli.py @ 58:112bf081148c

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make a full CLI class for a single API template
author Jeff Hammel <jhammel@mozilla.com>
date Thu, 06 Jan 2011 15:54:55 -0800
parents 074a32920f7c
children 93f2b2c7f838
comparison
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57:074a32920f7c 58:112bf081148c
2 command line parser for MakeItSo 2 command line parser for MakeItSo
3 """ 3 """
4 4
5 from optparse import OptionParser 5 from optparse import OptionParser
6 6
7 def parser(template): 7 class MakeItSoCLI(object):
8 """ 8 """command line interface to a makeitso template"""
9 return a command line parser for the template 9
10 """ 10 def __init__(self, template_class):
11 usage = '%prog [options]' 11 self.template_class = template_class
12 description = getattr(template, 'description', None)
13 parser = OptionParser(usage=usage, description=description)
14 return parser
15 12
13 def parser(self):
14 """
15 return a command line parser for the template
16 """
17 usage = '%prog [options] output [var1=value1] [var2=value2] [...]'
18 description = getattr(template, 'description', None)
19 parser = OptionParser(usage=usage, description=description)
20 parser.add_options('--variables', dest='variables',
21 action='store_true', default=False,
22 help="display variables in the template")
23 return parser
24
25 def parse(self):
26 parser = self.parser()
27 options, args = parser.parse_args()
28
29 # print the variables for the templates
30 if options.variables:
31
32 # makes no sense without a template
33 if not args:
34 parser.print_usage()
35 parser.exit()
36
37 # find all variables
38 template = self.template()
39 variables = template.variables()
40
41 # print them
42 for variable in sorted(variables):
43 print variable
44 return
45
46 # template variables
47 variables = {}
48 output = []
49 for arg in args:
50 if '=' in arg:
51 key, value = arg.split('=')
52 variables[key] = value
53 else:
54 output.append(arg)
55 if len(output) != 1:
56 parser.error("Please specify one output")
57
58 template = self.template_class(output=output[0], variables=variables)
59
60 return template