xref: /openbmc/u-boot/tools/buildman/bsettings.py (revision aa26776a) 
1# Copyright (c) 2012 The Chromium OS Authors.
2#
3# SPDX-License-Identifier:	GPL-2.0+
4#
5
6import ConfigParser
7import os
8import StringIO
9
10
11def Setup(fname=''):
12    """Set up the buildman settings module by reading config files
13
14    Args:
15        config_fname:   Config filename to read ('' for default)
16    """
17    global settings
18    global config_fname
19
20    settings = ConfigParser.SafeConfigParser()
21    if fname is not None:
22        config_fname = fname
23        if config_fname == '':
24            config_fname = '%s/.buildman' % os.getenv('HOME')
25        if not os.path.exists(config_fname):
26            print 'No config file found ~/.buildman\nCreating one...\n'
27            CreateBuildmanConfigFile(config_fname)
28            print 'To install tool chains, please use the --fetch-arch option'
29        if config_fname:
30            settings.read(config_fname)
31
32def AddFile(data):
33    settings.readfp(StringIO.StringIO(data))
34
35def GetItems(section):
36    """Get the items from a section of the config.
37
38    Args:
39        section: name of section to retrieve
40
41    Returns:
42        List of (name, value) tuples for the section
43    """
44    try:
45        return settings.items(section)
46    except ConfigParser.NoSectionError as e:
47        return []
48    except:
49        raise
50
51def SetItem(section, tag, value):
52    """Set an item and write it back to the settings file"""
53    global settings
54    global config_fname
55
56    settings.set(section, tag, value)
57    if config_fname is not None:
58        with open(config_fname, 'w') as fd:
59            settings.write(fd)
60
61def CreateBuildmanConfigFile(config_fname):
62    """Creates a new config file with no tool chain information.
63
64    Args:
65        config_fname: Config filename to create
66
67    Returns:
68        None
69    """
70    try:
71        f = open(config_fname, 'w')
72    except IOError:
73        print "Couldn't create buildman config file '%s'\n" % config_fname
74        raise
75
76    print >>f, '''[toolchain]
77# name = path
78# e.g. x86 = /opt/gcc-4.6.3-nolibc/x86_64-linux
79
80[toolchain-prefix]
81# name = path to prefix
82# e.g. x86 = /opt/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-
83
84[toolchain-alias]
85# arch = alias
86# Indicates which toolchain should be used to build for that arch
87x86 = i386
88blackfin = bfin
89nds32 = nds32le
90openrisc = or1k
91
92[make-flags]
93# Special flags to pass to 'make' for certain boards, e.g. to pass a test
94# flag and build tag to snapper boards:
95# snapper-boards=ENABLE_AT91_TEST=1
96# snapper9260=${snapper-boards} BUILD_TAG=442
97# snapper9g45=${snapper-boards} BUILD_TAG=443
98'''
99    f.close();
100