Merge branch 'erp5-component-merge' into erp5-component
[slapos.git] / slapos / recipe / symbolic_link.py
1 ##############################################################################
2 #
3 # Copyright (c) 2011 Vifib SARL and Contributors. All Rights Reserved.
4 #
5 # WARNING: This program as such is intended to be used by professional
6 # programmers who take the whole responsibility of assessing all potential
7 # consequences resulting from its eventual inadequacies and bugs
8 # End users who are looking for a ready-to-use solution with commercial
9 # guarantees and support are strongly adviced to contract a Free Software
10 # Service Company
11 #
12 # This program is Free Software; you can redistribute it and/or
13 # modify it under the terms of the GNU General Public License
14 # as published by the Free Software Foundation; either version 3
15 # of the License, or (at your option) any later version.
16 #
17 # This program is distributed in the hope that it will be useful,
18 # but WITHOUT ANY WARRANTY; without even the implied warranty of
19 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 # GNU General Public License for more details.
21 #
22 # You should have received a copy of the GNU General Public License
23 # along with this program; if not, write to the Free Software
24 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25 #
26 ##############################################################################
27 import os
28 import logging
29
30 import zc.buildout
31
32
33 class Recipe:
34 def __init__(self, buildout, name, options):
35 self.buildout = buildout
36 self.name = name
37 self.options = options
38 self.logger = logging.getLogger(self.name)
39
40 def install(self):
41 """
42 Links binaries to instance's bin directory for easier exposal
43 """
44 path_list = []
45 target_directory = self.options['target-directory']
46 # XXX: breaks if any path contains spaces.
47 for linkline in self.options['link-binary'].split():
48 path, linkname = os.path.split(linkline)
49
50 link = os.path.join(target_directory, linkname)
51 if os.path.lexists(link):
52 if not os.path.islink(link):
53 raise zc.buildout.UserError(
54 'Target link already %r exists but it is not link' % link)
55 os.unlink(link)
56 os.symlink(linkline, link)
57 self.logger.debug('Created link %r -> %r' % (link, linkline))
58 path_list.append(link)
59
60 return path_list
61
62 update = install