summaryrefslogtreecommitdiffstats
path: root/bin/metabuild
blob: 4a27cb7e8fc42c5e9d1a6f46508ce42bcf2caa74 (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
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
#!/usr/bin/python

# metabuild: Generic build system wrapper
# Copyright 2010 Colin Walters <walters@verbum.org>
# Licensed under the new-BSD license (http://www.opensource.org/licenses/bsd-license.php)

# metabuild currently just wraps autotools (configure+make).
# To use it, you must first use the "inroot" tool to enter an alternative
# buildroot.
#
# $ inroot /path/to/buildroot bash
#
# Next, just type:
# $ metabuild
# This will:
#  1) Run ./configure if necessary
#  2) Run make
#
# The build output is automatically logged to $TMPDIR/build-$(PWD).log.
# For example, invoking metabuild in a directory named "foo" will log
# to /tmp/build-foo.log
#
# You can pass arguments to metabuild; if they start with '--', they're
# given to configure.  Otherwise, they're passed to make.
#
# $ metabuild --enable-libfoo  # passed to configure
# $ metabuild -j 1             # passed to make

import os,sys,subprocess,tempfile
from multiprocessing import cpu_count
import glib,gio

if 'INROOT_DIR' not in os.environ:
    print "INROOT_DIR not set; run under inroot"
    sys.exit(1)
root = os.environ['INROOT_DIR']
if os.path.isdir('/lib64'):
    libdir=os.path.join(root, 'lib64')
else:
    libdir=os.path.join(root, 'lib')

default_make_parallel = ['-j', '%d' % (cpu_count() * 6, )]
user_specified_jobs = False
configargs = ['--prefix=' + root, '--libdir=' + libdir]
makeargs = ['make']
for arg in sys.argv[1:]:
    if arg.startswith('--'):
        configargs.append(arg)
    else:
        if arg == '-j':
            user_specified_jobs = True
        makeargs.append(arg)
if not user_specified_jobs:
    makeargs.extend(default_make_parallel)

loop = glib.MainLoop()

class Tail(object):
    def __init__(self, filename, output):
        self.filename = filename
        self.output = output
        self._gfile = gio.File(path=filename)
        self._mon = self._gfile.monitor(gio.FILE_MONITOR_NONE)
        self._instream = self._gfile.read()
        self._read_queued = False
        self._quit_data = None
        self._mon.connect('changed', self._on_changed)

    def _do_read(self):
        if self._read_queued:
            return
        self._read_queued = True
        self._instream.read_async(8192, self._on_read)

    def _on_read(self, src, result):
        self._read_queued = False
        buf = src.read_finish(result)
        if buf != '':
            self.output.write(buf)
            self._do_read()
        elif self._quit_data:
            self._quit_data[0].quit()
            self._quit_data[1]()

    def _on_changed(self, mon, gfile, other, event):
        self._do_read()

    def start(self):
        self._do_read()

    def finish(self, loop, callback):
        self._quit_data = (loop, callback)
        self._do_read()

tempdir = os.environ.get('TMPDIR', '/tmp')
logfile_path = os.path.join(tempdir, 'build-%s.log' % (os.path.basename(os.getcwd()), ))
try:
    os.unlink(logfile_path)
except OSError, e:
    pass
logfile_write_fd = os.open(logfile_path, os.O_WRONLY | os.O_CREAT | os.O_EXCL)
logfile_f = os.fdopen(logfile_write_fd, "w")
sys.stdout.write('metabuild: logging to %r\n' % (logfile_path, ))
sys.stdout.flush()

loop = glib.MainLoop()

tail = Tail(logfile_path, sys.stdout)
tail.start()

def log(msg):
    fullmsg = 'metabuild: ' + msg + '\n'
    logfile_f.write(fullmsg)
    logfile_f.flush()

def global_failure_handler():
    tail.finish(loop, lambda: sys.exit(1))

class BuildProcess(object):
    def __init__(self, args, cwd=None):
        self.args = args
        self.pid = None
        self.next_callback = None

    def _child_setup(self, *args):
        nullfd = os.open('/dev/null', os.O_RDONLY)
        os.dup2(nullfd, 0)
        os.close(nullfd)
        os.dup2(logfile_write_fd, 1)

        os.dup2(logfile_write_fd, 2)

    def _exit_callback(self, pid, condition):
        log("pid %d exited with condition %d" % (pid, condition))
        if condition != 0:
            global_failure_handler()
        else:
            glib.idle_add(self.next_callback)

    def run_async(self, exit_callback):
        log("Running: %r" % (self.args, ))
        (pid, stdin_fd, stdout_fd, stderr_fd) = \
            glib.spawn_async(self.args,
                             flags=(glib.SPAWN_DO_NOT_REAP_CHILD | glib.SPAWN_SEARCH_PATH),
                             child_setup=self._child_setup)
        self.pid = pid
        self.next_callback = exit_callback
        glib.child_watch_add(pid, self._exit_callback)

have_configure=(os.path.exists('configure.ac') or os.path.exists('configure.in'))

def phase_bootstrap():        
    if have_configure and not os.path.exists('configure'):
        if os.path.exists('autogen.sh'):
            log("Detected GNOME-style autogen.sh, using it")
            args = ['./autogen.sh']
            args.extend(configargs)
            autogen = BuildProcess(args)
            autogen.run_async(phase_configure)
        else:
            log("No autogen.sh, trying autoreconf")
            autogen = BuildProcess(['autoreconf', '-f', '-i'])
            autogen.run_async(phase_configure)
    else:
        phase_configure()

def phase_configure():
    prefix_matches=True
    if have_configure and os.path.exists('config.log'):
        previous_prefix = None
        f = open('config.log')
        for line in f:
            if line.startswith('prefix=\''):
                previous_prefix = line[8:-2]
                break
        f.close()
        if previous_prefix != root:
            log("Reruning configure due to prefix change (%r -> %r)" % (root, previous_prefix))
            prefix_matches=False
    if have_configure and (not os.path.exists('Makefile') or not prefix_matches):
        log("Detected configure script, using it")
        args = ['./configure']
        args.extend(configargs)
        configure = BuildProcess(args)
        configure.run_async(phase_build)
    else:
        phase_build()

build_status = False

def phase_build():
    if os.path.exists('Makefile'):
        log("Detected Makefile, using it")
        make = BuildProcess(makeargs)
        make.run_async(phase_complete)
    else:
        log("Couldn't find supported build system")
        log("Known systems:")
        log("    Makefile: make")

def phase_complete():
    log("Complete!")
    tail.finish(loop, lambda: sys.exit(0))

# Start off the process
phase_bootstrap()
loop.run()