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#!/usr/bin/python """Modify a dependency listed in a package.json file""" # Copyright 2013 T.C. Hollingsworth <tchollingsworth@gmail.com> # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to # deal in the Software without restriction, including without limitation the # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or # sell copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS # IN THE SOFTWARE. import json import optparse import os import re import shutil import sys RE_VERSION = re.compile(r'\s*v?([<>=~^]{0,2})\s*([0-9][0-9\.\-]*)\s*') p = optparse.OptionParser( description='Modifies dependency entries in package.json files') p.add_option('-r', '--remove', action='store_true') p.add_option('--dev', action='store_const', const='devDependencies', dest='deptype', help='affect devDependencies') p.add_option('--optional', action='store_const', const='optionalDependencies', dest='deptype', help='affect optionalDependencies') p.add_option('--caret', action='store_true', help='convert all or specified dependencies to use the caret operator') options, args = p.parse_args() if not os.path.exists('package.json~'): shutil.copy2('package.json', 'package.json~') md = json.load(open('package.json')) deptype = options.deptype if options.deptype is not None else 'dependencies' if deptype not in md: md[deptype] = {} # convert alternate JSON dependency representations to a dictionary if not options.caret and not isinstance(md[deptype], dict): if isinstance(md[deptype], list): deps = md[deptype] md[deptype] = {} for dep in deps: md[deptype][dep] = '*' elif isinstance(md[deptype], basestring): md[deptype] = { md[deptype] : '*' } if options.remove: dep = args[0] del md[deptype][dep] elif options.caret: if not isinstance(md[deptype], dict): sys.stderr.write('All dependencies are unversioned. Unable to apply ' + 'caret operator.\n') sys.exit(2) deps = args if len(args) > 0 else md[deptype].keys() for dep in deps: if md[deptype][dep][0] == '^': continue elif md[deptype][dep][0] in ('~','0','1','2','3','4','5','6','7','8','9'): ver = re.match(RE_VERSION, md[deptype][dep]).group(2) md[deptype][dep] = '^' + ver else: sys.stderr.write('Attempted to convert non-numeric or tilde ' + 'dependency to caret. This is not permitted.\n') sys.exit(1) else: dep = args[0] if len(args) > 1: ver = args[1] else: ver = '*' md[deptype][dep] = ver fh = open('package.json', 'w') data = json.JSONEncoder(indent=4).encode(md) fh.write(data) fh.close()