blob: ad44a55d016182e94a28bbc40702047e0274745d (
plain)
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
|
#!/usr/bin/env python
"""Merges multiple Python requirements files into one file.
Requirements files specified later take precedence over earlier ones. Only
simple SomeProject==1.2.3 format is currently supported.
"""
from __future__ import print_function
import sys
def read_file(file_path):
"""Reads in a Python requirements file.
:param str file_path: path to requirements file
:returns: mapping from a project to its pinned version
:rtype: dict
"""
d = {}
with open(file_path) as f:
for line in f:
line = line.strip()
if line and not line.startswith('#'):
project, version = line.split('==')
if not version:
raise ValueError("Unexpected syntax '{0}'".format(line))
d[project] = version
return d
def output_requirements(requirements):
"""Prepare print requirements to stdout.
:param dict requirements: mapping from a project to its pinned version
"""
return '\n'.join('{0}=={1}'.format(k, v)
for k, v in sorted(requirements.items()))
def main(*files):
"""Merges multiple requirements files together and prints the result.
Requirement files specified later in the list take precedence over earlier
files.
:param tuple files: paths to requirements files
"""
d = {}
for f in files:
d.update(read_file(f))
return output_requirements(d)
if __name__ == '__main__':
merged_requirements = main(*sys.argv[1:])
print(merged_requirements)
|