1"""SCons.Tool.javah 2 3Tool-specific initialization for javah. 4 5There normally shouldn't be any need to import this module directly. 6It will usually be imported through the generic SCons.Tool.Tool() 7selection method. 8 9""" 10 11# 12# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 The SCons Foundation 13# 14# Permission is hereby granted, free of charge, to any person obtaining 15# a copy of this software and associated documentation files (the 16# "Software"), to deal in the Software without restriction, including 17# without limitation the rights to use, copy, modify, merge, publish, 18# distribute, sublicense, and/or sell copies of the Software, and to 19# permit persons to whom the Software is furnished to do so, subject to 20# the following conditions: 21# 22# The above copyright notice and this permission notice shall be included 23# in all copies or substantial portions of the Software. 24# 25# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY 26# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE 27# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 29# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 30# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 31# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 32# 33 34__revision__ = "src/engine/SCons/Tool/javah.py issue-2856:2676:d23b7a2f45e8 2012/08/05 15:38:28 garyo" 35 36import os.path 37 38import SCons.Action 39import SCons.Builder 40import SCons.Node.FS 41import SCons.Tool.javac 42import SCons.Util 43 44def emit_java_headers(target, source, env): 45 """Create and return lists of Java stub header files that will 46 be created from a set of class files. 47 """ 48 class_suffix = env.get('JAVACLASSSUFFIX', '.class') 49 classdir = env.get('JAVACLASSDIR') 50 51 if not classdir: 52 try: 53 s = source[0] 54 except IndexError: 55 classdir = '.' 56 else: 57 try: 58 classdir = s.attributes.java_classdir 59 except AttributeError: 60 classdir = '.' 61 classdir = env.Dir(classdir).rdir() 62 63 if str(classdir) == '.': 64 c_ = None 65 else: 66 c_ = str(classdir) + os.sep 67 68 slist = [] 69 for src in source: 70 try: 71 classname = src.attributes.java_classname 72 except AttributeError: 73 classname = str(src) 74 if c_ and classname[:len(c_)] == c_: 75 classname = classname[len(c_):] 76 if class_suffix and classname[-len(class_suffix):] == class_suffix: 77 classname = classname[:-len(class_suffix)] 78 classname = SCons.Tool.javac.classname(classname) 79 s = src.rfile() 80 s.attributes.java_classname = classname 81 slist.append(s) 82 83 s = source[0].rfile() 84 if not hasattr(s.attributes, 'java_classdir'): 85 s.attributes.java_classdir = classdir 86 87 if target[0].__class__ is SCons.Node.FS.File: 88 tlist = target 89 else: 90 if not isinstance(target[0], SCons.Node.FS.Dir): 91 target[0].__class__ = SCons.Node.FS.Dir 92 target[0]._morph() 93 tlist = [] 94 for s in source: 95 fname = s.attributes.java_classname.replace('.', '_') + '.h' 96 t = target[0].File(fname) 97 t.attributes.java_lookupdir = target[0] 98 tlist.append(t) 99 100 return tlist, source 101 102def JavaHOutFlagGenerator(target, source, env, for_signature): 103 try: 104 t = target[0] 105 except (AttributeError, IndexError, TypeError): 106 t = target 107 try: 108 return '-d ' + str(t.attributes.java_lookupdir) 109 except AttributeError: 110 return '-o ' + str(t) 111 112def getJavaHClassPath(env,target, source, for_signature): 113 path = "${SOURCE.attributes.java_classdir}" 114 if 'JAVACLASSPATH' in env and env['JAVACLASSPATH']: 115 path = SCons.Util.AppendPath(path, env['JAVACLASSPATH']) 116 return "-classpath %s" % (path) 117 118def generate(env): 119 """Add Builders and construction variables for javah to an Environment.""" 120 java_javah = SCons.Tool.CreateJavaHBuilder(env) 121 java_javah.emitter = emit_java_headers 122 123 env['_JAVAHOUTFLAG'] = JavaHOutFlagGenerator 124 env['JAVAH'] = 'javah' 125 env['JAVAHFLAGS'] = SCons.Util.CLVar('') 126 env['_JAVAHCLASSPATH'] = getJavaHClassPath 127 env['JAVAHCOM'] = '$JAVAH $JAVAHFLAGS $_JAVAHOUTFLAG $_JAVAHCLASSPATH ${SOURCES.attributes.java_classname}' 128 env['JAVACLASSSUFFIX'] = '.class' 129 130def exists(env): 131 return env.Detect('javah') 132 133# Local Variables: 134# tab-width:4 135# indent-tabs-mode:nil 136# End: 137# vim: set expandtab tabstop=4 shiftwidth=4: 138