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#!/usr/bin/python
# Copyright (C) 2009 Sun Microsystems
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# 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 St, Fifth Floor, Boston, MA 02110-1301 USA
# Find plugins in the tree and add them to the build system
import os, ConfigParser, sys
top_srcdir='.'
top_builddir='.'
plugin_ini_fname='plugin.ini'
plugin_list=[]
autogen_header="This file is generated, re-run %s to rebuild\n" % sys.argv[0]
class ChangeProtectedFile(object):
def __init__(self, fname):
self.real_fname= fname
self.new_fname= "%s.new" % fname
self.new_file= open(self.new_fname,'w')
def write(self, text):
self.new_file.write(text)
# We've written all of this out into .new files, now we only copy them
# over the old ones if they are different, so that we don't cause
# unnecessary recompiles
def close(self):
self.new_file.close()
if os.system('diff %s %s >/dev/null 2>&1' % (self.new_fname,self.real_fname)):
try:
os.unlink(self.real_fname)
except:
pass
os.rename(self.new_fname, self.real_fname)
try:
os.unlink(self.new_fname)
except:
pass
if len(sys.argv)>1:
top_srcdir=sys.argv[1]
top_builddir=top_srcdir
if len(sys.argv)>2:
top_builddir=sys.argv[2]
plugin_ac=ChangeProtectedFile(os.path.join(top_builddir,'config','plugin.ac'))
plugin_am=ChangeProtectedFile(os.path.join(top_srcdir,'config','plugin.am'))
plugin_ac.write("dnl %s" % autogen_header)
plugin_am.write("# %s" % autogen_header)
plugin_am.write("PANDORA_DYNAMIC_LDADDS=\n")
def accumulate_plugins(arg, dirname, fnames):
if plugin_ini_fname in fnames:
arg.append(dirname)
os.path.walk(os.path.join(top_srcdir,"plugin"),accumulate_plugins,plugin_list)
plugin_list.sort()
for plugin_dir in plugin_list:
plugin_file= os.path.join(plugin_dir,plugin_ini_fname)
parser=ConfigParser.ConfigParser(defaults=dict(sources="",headers="", cflags="",cppflags="",cxxflags="", libs="", ldflags="", testsuite=""))
parser.read(plugin_file)
plugin=dict(parser.items('plugin'))
plugin['rel_path']= plugin_dir[len(top_srcdir)+len(os.path.sep):]
# TODO: determine path to plugin dir relative to top_srcdir... append it
# to source files if they don't already have it
if plugin['sources'] == "":
plugin['sources']="%s.cc" % plugin['name']
new_sources=""
for src in plugin['sources'].split():
if not src.startswith(plugin['rel_path']):
src= os.path.join(plugin['rel_path'], src)
new_sources= "%s %s" % (new_sources, src)
plugin['sources']= new_sources
new_headers=""
for header in plugin['headers'].split():
if not header.startswith(plugin['rel_path']):
header= os.path.join(plugin['rel_path'], header)
new_headers= "%s %s" % (new_headers, header)
plugin['headers']= new_headers
if plugin.has_key('load_by_default'):
plugin['load_by_default']=parser.getboolean('plugin','load_by_default')
else:
plugin['load_by_default']=False
# Make a yes/no version for autoconf help messages
if plugin['load_by_default']:
plugin['default_yesno']="yes"
else:
plugin['default_yesno']="no"
plugin_ac_file=os.path.join(plugin['rel_path'],'plugin.ac')
plugin_am_file=os.path.join(plugin['rel_path'],'plugin.am')
plugin_m4_dir=os.path.join(plugin['rel_path'],'m4')
plugin_m4_files=[]
if os.path.exists(plugin_m4_dir) and os.path.isdir(plugin_m4_dir):
for m4_file in os.listdir(plugin_m4_dir):
if os.path.splitext(m4_file)[-1] == '.m4':
plugin_m4_files.append(os.path.join(plugin['rel_path'], m4_file))
plugin['build_conditional_tag']= "BUILD_%s_PLUGIN" % plugin['name'].upper()
plugin['name_with_dashes']= plugin['name'].replace('_','-')
if plugin.has_key('build_conditional'):
plugin['has_build_conditional']=True
else:
plugin['has_build_conditional']=False
plugin['build_conditional']='"x${with_%(name)s_plugin}" = "xyes"' %plugin
# Turn this on later plugin_lib%(name)s_plugin_la_CPPFLAGS=$(AM_CPPFLAGS) -DPANDORA_DYNAMIC_PLUGIN %(cppflags)s
#
# Write plugin build instructions into plugin.am file.
#
if plugin['headers'] != "":
plugin_am.write("noinst_HEADERS += %(headers)s\n" % plugin)
plugin_am.write("""
plugin_lib%(name)s_dir=${top_srcdir}/%(rel_path)s
EXTRA_DIST += %(rel_path)s/plugin.ini
if %(build_conditional_tag)s
noinst_LTLIBRARIES+=plugin/lib%(name)s_plugin.la
plugin_lib%(name)s_plugin_la_LIBADD=%(libs)s
plugin_lib%(name)s_plugin_la_DEPENDENCIES=%(libs)s
plugin_lib%(name)s_plugin_la_LDFLAGS=$(AM_LDFLAGS) %(ldflags)s
plugin_lib%(name)s_plugin_la_CPPFLAGS=$(AM_CPPFLAGS) %(cppflags)s
plugin_lib%(name)s_plugin_la_CXXFLAGS=$(AM_CXXFLAGS) %(cxxflags)s
plugin_lib%(name)s_plugin_la_CFLAGS=$(AM_CFLAGS) %(cflags)s
plugin_lib%(name)s_plugin_la_SOURCES=%(sources)s
PANDORA_DYNAMIC_LDADDS+=${top_builddir}/plugin/lib%(name)s_plugin.la
endif
""" % plugin)
# Add this once we're actually doing dlopen (and remove -avoid-version if
# we move to ltdl
#pkgplugin_LTLIBRARIES+=plugin/lib%(name)s_plugin.la
#plugin_lib%(name)s_plugin_la_LDFLAGS=-module -avoid-version -rpath $(pkgplugindir) %(libs)s
if os.path.exists(plugin_am_file):
plugin_am.write('include %s\n' % plugin_am_file)
#
# Write plugin config instructions into plugin.am file.
#
plugin_ac.write("\n\ndnl Config for %(title)s\n" % plugin)
for m4_file in plugin_m4_files:
plugin_ac.write('m4_sinclude([%s])\n' % m4_file)
plugin_ac.write("""
AC_ARG_WITH([%(name_with_dashes)s-plugin],[
dnl indented werid to make the help output correct
AS_HELP_STRING([--with-%(name_with_dashes)s-plugin],[Build %(title)s and enable it. @<:@default=%(default_yesno)s@:>@])
AS_HELP_STRING([--without-%(name_with_dashes)s-plugin],[Disable building %(title)s])
],
[with_%(name)s_plugin="$withval"],
[AS_IF([test "x$ac_with_all_plugins" = "yes"],
[with_%(name)s_plugin=yes],
[with_%(name)s_plugin=%(default_yesno)s])])
""" % plugin)
if os.path.exists(plugin_ac_file):
plugin_ac.write('m4_sinclude([%s])\n' % plugin_ac_file)
# The plugin author has specified some check to make to determine
# if the plugin can be built. If the plugin is turned on and this
# check fails, then configure should error out. If the plugin is not
# turned on, then the normal conditional build stuff should just let
# it silently not build
if plugin['has_build_conditional']:
plugin_ac.write("""
AS_IF([test %(build_conditional)s],
[with_%(name)s_plugin=yes],
[with_%(name)s_plugin=no])
""" % plugin)
plugin['plugin_dep_libs']=" ".join(["\${top_builddir}/%s" % f for f in plugin['libs'].split()])
plugin_ac.write("""
AM_CONDITIONAL([%(build_conditional_tag)s],
[test %(build_conditional)s])
AS_IF([test "x$with_%(name)s_plugin" = "xyes"],
[
""" % plugin)
if plugin['testsuite'] != "":
plugin_ac.write("""
pandora_plugin_test_list="%(testsuite)s,${pandora_plugin_test_list}"
""" % plugin)
plugin_ac.write("""
pandora_default_plugin_list="%(name)s,${pandora_default_plugin_list}"
pandora_builtin_list="builtin_%(name)s_plugin,${pandora_builtin_list}"
pandora_plugin_libs="${pandora_plugin_libs} \${top_builddir}/plugin/lib%(name)s_plugin.la"
PANDORA_PLUGIN_DEP_LIBS="${PANDORA_PLUGIN_DEP_LIBS} %(plugin_dep_libs)s"
])
""" % plugin)
plugin_ac.close()
plugin_am.close()
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