summaryrefslogtreecommitdiffstats
path: root/scripts/lib/devtool/__init__.py
blob: 404d3e66456adbbfbdc5cb658af949b470959a86 (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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
#!/usr/bin/env python

# Development tool - utility functions for plugins
#
# Copyright (C) 2014 Intel Corporation
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# 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, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
"""Devtool plugins module"""

import os
import sys
import subprocess
import logging

logger = logging.getLogger('devtool')


class DevtoolError(Exception):
    """Exception for handling devtool errors"""
    pass


def exec_build_env_command(init_path, builddir, cmd, watch=False, **options):
    """Run a program in bitbake build context"""
    import bb
    if not 'cwd' in options:
        options["cwd"] = builddir
    if init_path:
        # As the OE init script makes use of BASH_SOURCE to determine OEROOT,
        # and can't determine it when running under dash, we need to set
        # the executable to bash to correctly set things up
        if not 'executable' in options:
            options['executable'] = 'bash'
        logger.debug('Executing command: "%s" using init path %s' % (cmd, init_path))
        init_prefix = '. %s %s > /dev/null && ' % (init_path, builddir)
    else:
        logger.debug('Executing command "%s"' % cmd)
        init_prefix = ''
    if watch:
        if sys.stdout.isatty():
            # Fool bitbake into thinking it's outputting to a terminal (because it is, indirectly)
            cmd = 'script -e -q -c "%s" /dev/null' % cmd
        return exec_watch('%s%s' % (init_prefix, cmd), **options)
    else:
        return bb.process.run('%s%s' % (init_prefix, cmd), **options)

def exec_watch(cmd, **options):
    """Run program with stdout shown on sys.stdout"""
    import bb
    if isinstance(cmd, basestring) and not "shell" in options:
        options["shell"] = True

    process = subprocess.Popen(
        cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT, **options
    )

    buf = ''
    while True:
        out = process.stdout.read(1)
        if out:
            sys.stdout.write(out)
            sys.stdout.flush()
            buf += out
        elif out == '' and process.poll() != None:
            break

    if process.returncode != 0:
        raise bb.process.ExecutionError(cmd, process.returncode, buf, None)

    return buf, None

def exec_fakeroot(d, cmd, **kwargs):
    """Run a command under fakeroot (pseudo, in fact) so that it picks up the appropriate file permissions"""
    # Grab the command and check it actually exists
    fakerootcmd = d.getVar('FAKEROOTCMD', True)
    if not os.path.exists(fakerootcmd):
        logger.error('pseudo executable %s could not be found - have you run a build yet? pseudo-native should install this and if you have run any build then that should have been built')
        return 2
    # Set up the appropriate environment
    newenv = dict(os.environ)
    fakerootenv = d.getVar('FAKEROOTENV', True)
    for varvalue in fakerootenv.split():
        if '=' in varvalue:
            splitval = varvalue.split('=', 1)
            newenv[splitval[0]] = splitval[1]
    return subprocess.call("%s %s" % (fakerootcmd, cmd), env=newenv, **kwargs)

def setup_tinfoil(config_only=False):
    """Initialize tinfoil api from bitbake"""
    import scriptpath
    bitbakepath = scriptpath.add_bitbake_lib_path()
    if not bitbakepath:
        logger.error("Unable to find bitbake by searching parent directory of this script or PATH")
        sys.exit(1)

    import bb.tinfoil
    tinfoil = bb.tinfoil.Tinfoil()
    tinfoil.prepare(config_only)
    tinfoil.logger.setLevel(logger.getEffectiveLevel())
    return tinfoil

def get_recipe_file(cooker, pn):
    """Find recipe file corresponding a package name"""
    import oe.recipeutils
    recipefile = oe.recipeutils.pn_to_recipe(cooker, pn)
    if not recipefile:
        skipreasons = oe.recipeutils.get_unavailable_reasons(cooker, pn)
        if skipreasons:
            logger.error('\n'.join(skipreasons))
        else:
            logger.error("Unable to find any recipe file matching %s" % pn)
    return recipefile

def parse_recipe(config, tinfoil, pn, appends):
    """Parse recipe of a package"""
    import oe.recipeutils
    recipefile = get_recipe_file(tinfoil.cooker, pn)
    if not recipefile:
        # Error already logged
        return None
    if appends:
        append_files = tinfoil.cooker.collection.get_file_appends(recipefile)
        # Filter out appends from the workspace
        append_files = [path for path in append_files if
                        not path.startswith(config.workspace_path)]
    return oe.recipeutils.parse_recipe(recipefile, append_files,
                                       tinfoil.config_data)