1 files changed, 133 insertions, 0 deletions
diff --git a/bin/metabuild b/bin/metabuild
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+#!/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')
+
+configargs = ['--prefix=' + root, '--libdir=' + libdir]
+makeargs = ['make', '-j', '%d' % (cpu_count() * 2, )]
+for arg in sys.argv[1:]:
+    if arg.startswith('--'):
+        configargs.append(arg)
+    else:
+        makeargs.append(arg)
+
+have_configure=(os.path.exists('configure.ac') or os.path.exists('configure.in'))
+if have_configure and not os.path.exists('configure'):
+    if os.path.exists('autogen.sh'):
+        args = ['./autogen.sh']
+        args.extend(configargs)
+        subprocess.check_call(args, stdout=sys.stdout, stderr=sys.stderr)
+    else:
+        subprocess.check_call(['autoreconf', '-f', '-i'], stdout=sys.stdout, stderr=sys.stderr)
+        args = ['./configure']
+        args.extend(configargs)
+        subprocess.check_call(args, stdout=sys.stdout, stderr=sys.stderr)
+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:
+        print "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):
+    args = ['./configure']
+    args.extend(configargs)
+    subprocess.check_call(args, stdout=sys.stdout, stderr=sys.stderr)
+
+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._fd = os.open(self.filename, os.O_RDONLY)
+        self._position = 0
+        self._mon.connect('changed', self._on_changed)
+        self._do_read()
+
+    def _do_read(self):
+        buf = os.read(self._fd, 8192)
+        while buf != '':
+            self._position += len(buf)
+            self.output.write(buf)
+            buf = os.read(self._fd, 8192)
+
+    def _on_changed(self, mon, gfile, other, event):
+        self._do_read()
+
+    def finish(self):
+        self._do_read()
+
+loop = glib.MainLoop()
+build_condition = None
+
+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)
+sys.stdout.write('metabuild: logging to %r\n' % (logfile_path, ))
+sys.stdout.flush()
+def child_setup(*args):
+    os.dup2(logfile_write_fd, 1)
+    os.dup2(logfile_write_fd, 2)
+(make_pid, stdin_fd, stdout_fd, stderr_fd) = \
+    glib.spawn_async(makeargs,
+                     flags=(glib.SPAWN_DO_NOT_REAP_CHILD | glib.SPAWN_SEARCH_PATH),
+                     child_setup=child_setup)
+os.close(logfile_write_fd)
+tail = Tail(logfile_path, sys.stdout)
+def on_child(pid, condition):
+    global loop
+    global build_condition
+    build_condition = condition
+    loop.quit()
+glib.child_watch_add(make_pid, on_child)
+loop.run()
+tail.finish()
+print "metabuild: make exited with status %r, logfile=%r" % (build_condition, logfile_path)
+sys.exit(0 if build_condition == 0 else 1)