blob: 02fdf1470584e163c6e4a1d291ff4b0e226eb1fb (
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
|
# order.py -- order projects in dependency order
#
# Copyright 2012 Lars Wirzenius
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
def _traverse(project, result):
for dep in project['_']:
_traverse(dep, result)
if project not in result:
result.append(project)
return result
def _roots(projects):
'''Return list of projects that are not build dependencies of anyone.'''
roots = projects[:]
for project in projects:
roots = [r for r in roots if r not in project['_']]
return roots
def order(projects):
by_name = {}
for project in projects:
by_name[project['name']] = project
for project in projects:
project['_'] = [by_name[dep]
for dep in project.get('build-depends', [])]
roots = _roots(projects)
linear = []
for project in roots:
_traverse(project, linear)
result = []
while linear:
project = linear.pop(0)
if project not in linear:
result.append(project)
return result
|
