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+#!/usr/bin/env python
+# encoding: utf-8
+# Thomas Nagy, 2006-2018 (ita)
+
+"""
+Java support
+
+Javac is one of the few compilers that behaves very badly:
+
+#. it outputs files where it wants to (-d is only for the package root)
+
+#. it recompiles files silently behind your back
+
+#. it outputs an undefined amount of files (inner classes)
+
+Remember that the compilation can be performed using Jython[1] rather than regular Python. Instead of
+running one of the following commands::
+
+ ./waf configure
+ python waf configure
+
+You would have to run::
+
+ java -jar /path/to/jython.jar waf configure
+
+[1] http://www.jython.org/
+"""
+
+import os, shutil
+from waflib import Task, Utils, Errors, Node
+from waflib.Configure import conf
+from waflib.TaskGen import feature, before_method, after_method
+
+from waflib.Tools import ccroot
+ccroot.USELIB_VARS['javac'] = set(['CLASSPATH', 'JAVACFLAGS'])
+
+SOURCE_RE = '**/*.java'
+JAR_RE = '**/*'
+
+class_check_source = '''
+public class Test {
+ public static void main(String[] argv) {
+ Class lib;
+ if (argv.length < 1) {
+ System.err.println("Missing argument");
+ System.exit(77);
+ }
+ try {
+ lib = Class.forName(argv[0]);
+ } catch (ClassNotFoundException e) {
+ System.err.println("ClassNotFoundException");
+ System.exit(1);
+ }
+ lib = null;
+ System.exit(0);
+ }
+}
+'''
+
+@feature('javac')
+@before_method('process_source')
+def apply_java(self):
+ """
+ Create a javac task for compiling *.java files*. There can be
+ only one javac task by task generator.
+ """
+ Utils.def_attrs(self, jarname='', classpath='',
+ sourcepath='.', srcdir='.',
+ jar_mf_attributes={}, jar_mf_classpath=[])
+
+ outdir = getattr(self, 'outdir', None)
+ if outdir:
+ if not isinstance(outdir, Node.Node):
+ outdir = self.path.get_bld().make_node(self.outdir)
+ else:
+ outdir = self.path.get_bld()
+ outdir.mkdir()
+ self.outdir = outdir
+ self.env.OUTDIR = outdir.abspath()
+
+ self.javac_task = tsk = self.create_task('javac')
+ tmp = []
+
+ srcdir = getattr(self, 'srcdir', '')
+ if isinstance(srcdir, Node.Node):
+ srcdir = [srcdir]
+ for x in Utils.to_list(srcdir):
+ if isinstance(x, Node.Node):
+ y = x
+ else:
+ y = self.path.find_dir(x)
+ if not y:
+ self.bld.fatal('Could not find the folder %s from %s' % (x, self.path))
+ tmp.append(y)
+
+ tsk.srcdir = tmp
+
+ if getattr(self, 'compat', None):
+ tsk.env.append_value('JAVACFLAGS', ['-source', str(self.compat)])
+
+ if hasattr(self, 'sourcepath'):
+ fold = [isinstance(x, Node.Node) and x or self.path.find_dir(x) for x in self.to_list(self.sourcepath)]
+ names = os.pathsep.join([x.srcpath() for x in fold])
+ else:
+ names = [x.srcpath() for x in tsk.srcdir]
+
+ if names:
+ tsk.env.append_value('JAVACFLAGS', ['-sourcepath', names])
+
+@feature('javac')
+@before_method('propagate_uselib_vars')
+@after_method('apply_java')
+def use_javac_files(self):
+ """
+ Processes the *use* attribute referring to other java compilations
+ """
+ lst = []
+ self.uselib = self.to_list(getattr(self, 'uselib', []))
+ names = self.to_list(getattr(self, 'use', []))
+ get = self.bld.get_tgen_by_name
+ for x in names:
+ try:
+ y = get(x)
+ except Errors.WafError:
+ self.uselib.append(x)
+ else:
+ y.post()
+ if hasattr(y, 'jar_task'):
+ lst.append(y.jar_task.outputs[0].abspath())
+ self.javac_task.set_run_after(y.jar_task)
+ else:
+ for tsk in y.tasks:
+ self.javac_task.set_run_after(tsk)
+ self.env.append_value('CLASSPATH', lst)
+
+@feature('javac')
+@after_method('apply_java', 'propagate_uselib_vars', 'use_javac_files')
+def set_classpath(self):
+ """
+ Sets the CLASSPATH value on the *javac* task previously created.
+ """
+ if getattr(self, 'classpath', None):
+ self.env.append_unique('CLASSPATH', getattr(self, 'classpath', []))
+ for x in self.tasks:
+ x.env.CLASSPATH = os.pathsep.join(self.env.CLASSPATH) + os.pathsep
+
+@feature('jar')
+@after_method('apply_java', 'use_javac_files')
+@before_method('process_source')
+def jar_files(self):
+ """
+ Creates a jar task (one maximum per task generator)
+ """
+ destfile = getattr(self, 'destfile', 'test.jar')
+ jaropts = getattr(self, 'jaropts', [])
+ manifest = getattr(self, 'manifest', None)
+
+ basedir = getattr(self, 'basedir', None)
+ if basedir:
+ if not isinstance(self.basedir, Node.Node):
+ basedir = self.path.get_bld().make_node(basedir)
+ else:
+ basedir = self.path.get_bld()
+ if not basedir:
+ self.bld.fatal('Could not find the basedir %r for %r' % (self.basedir, self))
+
+ self.jar_task = tsk = self.create_task('jar_create')
+ if manifest:
+ jarcreate = getattr(self, 'jarcreate', 'cfm')
+ if not isinstance(manifest,Node.Node):
+ node = self.path.find_resource(manifest)
+ else:
+ node = manifest
+ if not node:
+ self.bld.fatal('invalid manifest file %r for %r' % (manifest, self))
+ tsk.dep_nodes.append(node)
+ jaropts.insert(0, node.abspath())
+ else:
+ jarcreate = getattr(self, 'jarcreate', 'cf')
+ if not isinstance(destfile, Node.Node):
+ destfile = self.path.find_or_declare(destfile)
+ if not destfile:
+ self.bld.fatal('invalid destfile %r for %r' % (destfile, self))
+ tsk.set_outputs(destfile)
+ tsk.basedir = basedir
+
+ jaropts.append('-C')
+ jaropts.append(basedir.bldpath())
+ jaropts.append('.')
+
+ tsk.env.JAROPTS = jaropts
+ tsk.env.JARCREATE = jarcreate
+
+ if getattr(self, 'javac_task', None):
+ tsk.set_run_after(self.javac_task)
+
+@feature('jar')
+@after_method('jar_files')
+def use_jar_files(self):
+ """
+ Processes the *use* attribute to set the build order on the
+ tasks created by another task generator.
+ """
+ self.uselib = self.to_list(getattr(self, 'uselib', []))
+ names = self.to_list(getattr(self, 'use', []))
+ get = self.bld.get_tgen_by_name
+ for x in names:
+ try:
+ y = get(x)
+ except Errors.WafError:
+ self.uselib.append(x)
+ else:
+ y.post()
+ self.jar_task.run_after.update(y.tasks)
+
+class JTask(Task.Task):
+ """
+ Base class for java and jar tasks; provides functionality to run long commands
+ """
+ def split_argfile(self, cmd):
+ inline = [cmd[0]]
+ infile = []
+ for x in cmd[1:]:
+ # jar and javac do not want -J flags in @file
+ if x.startswith('-J'):
+ inline.append(x)
+ else:
+ infile.append(self.quote_flag(x))
+ return (inline, infile)
+
+class jar_create(JTask):
+ """
+ Creates a jar file
+ """
+ color = 'GREEN'
+ run_str = '${JAR} ${JARCREATE} ${TGT} ${JAROPTS}'
+
+ def runnable_status(self):
+ """
+ Wait for dependent tasks to be executed, then read the
+ files to update the list of inputs.
+ """
+ for t in self.run_after:
+ if not t.hasrun:
+ return Task.ASK_LATER
+ if not self.inputs:
+ try:
+ self.inputs = [x for x in self.basedir.ant_glob(JAR_RE, remove=False) if id(x) != id(self.outputs[0])]
+ except Exception:
+ raise Errors.WafError('Could not find the basedir %r for %r' % (self.basedir, self))
+ return super(jar_create, self).runnable_status()
+
+class javac(JTask):
+ """
+ Compiles java files
+ """
+ color = 'BLUE'
+ run_str = '${JAVAC} -classpath ${CLASSPATH} -d ${OUTDIR} ${JAVACFLAGS} ${SRC}'
+ vars = ['CLASSPATH', 'JAVACFLAGS', 'JAVAC', 'OUTDIR']
+ """
+ The javac task will be executed again if the variables CLASSPATH, JAVACFLAGS, JAVAC or OUTDIR change.
+ """
+ def uid(self):
+ """Identify java tasks by input&output folder"""
+ lst = [self.__class__.__name__, self.generator.outdir.abspath()]
+ for x in self.srcdir:
+ lst.append(x.abspath())
+ return Utils.h_list(lst)
+
+ def runnable_status(self):
+ """
+ Waits for dependent tasks to be complete, then read the file system to find the input nodes.
+ """
+ for t in self.run_after:
+ if not t.hasrun:
+ return Task.ASK_LATER
+
+ if not self.inputs:
+ self.inputs = []
+ for x in self.srcdir:
+ if x.exists():
+ self.inputs.extend(x.ant_glob(SOURCE_RE, remove=False))
+ return super(javac, self).runnable_status()
+
+ def post_run(self):
+ """
+ List class files created
+ """
+ for node in self.generator.outdir.ant_glob('**/*.class'):
+ self.generator.bld.node_sigs[node] = self.uid()
+ self.generator.bld.task_sigs[self.uid()] = self.cache_sig
+
+@feature('javadoc')
+@after_method('process_rule')
+def create_javadoc(self):
+ """
+ Creates a javadoc task (feature 'javadoc')
+ """
+ tsk = self.create_task('javadoc')
+ tsk.classpath = getattr(self, 'classpath', [])
+ self.javadoc_package = Utils.to_list(self.javadoc_package)
+ if not isinstance(self.javadoc_output, Node.Node):
+ self.javadoc_output = self.bld.path.find_or_declare(self.javadoc_output)
+
+class javadoc(Task.Task):
+ """
+ Builds java documentation
+ """
+ color = 'BLUE'
+
+ def __str__(self):
+ return '%s: %s -> %s\n' % (self.__class__.__name__, self.generator.srcdir, self.generator.javadoc_output)
+
+ def run(self):
+ env = self.env
+ bld = self.generator.bld
+ wd = bld.bldnode
+
+ #add src node + bld node (for generated java code)
+ srcpath = self.generator.path.abspath() + os.sep + self.generator.srcdir
+ srcpath += os.pathsep
+ srcpath += self.generator.path.get_bld().abspath() + os.sep + self.generator.srcdir
+
+ classpath = env.CLASSPATH
+ classpath += os.pathsep
+ classpath += os.pathsep.join(self.classpath)
+ classpath = "".join(classpath)
+
+ self.last_cmd = lst = []
+ lst.extend(Utils.to_list(env.JAVADOC))
+ lst.extend(['-d', self.generator.javadoc_output.abspath()])
+ lst.extend(['-sourcepath', srcpath])
+ lst.extend(['-classpath', classpath])
+ lst.extend(['-subpackages'])
+ lst.extend(self.generator.javadoc_package)
+ lst = [x for x in lst if x]
+
+ self.generator.bld.cmd_and_log(lst, cwd=wd, env=env.env or None, quiet=0)
+
+ def post_run(self):
+ nodes = self.generator.javadoc_output.ant_glob('**')
+ for node in nodes:
+ self.generator.bld.node_sigs[node] = self.uid()
+ self.generator.bld.task_sigs[self.uid()] = self.cache_sig
+
+def configure(self):
+ """
+ Detects the javac, java and jar programs
+ """
+ # If JAVA_PATH is set, we prepend it to the path list
+ java_path = self.environ['PATH'].split(os.pathsep)
+ v = self.env
+
+ if 'JAVA_HOME' in self.environ:
+ java_path = [os.path.join(self.environ['JAVA_HOME'], 'bin')] + java_path
+ self.env.JAVA_HOME = [self.environ['JAVA_HOME']]
+
+ for x in 'javac java jar javadoc'.split():
+ self.find_program(x, var=x.upper(), path_list=java_path)
+
+ if 'CLASSPATH' in self.environ:
+ v.CLASSPATH = self.environ['CLASSPATH']
+
+ if not v.JAR:
+ self.fatal('jar is required for making java packages')
+ if not v.JAVAC:
+ self.fatal('javac is required for compiling java classes')
+
+ v.JARCREATE = 'cf' # can use cvf
+ v.JAVACFLAGS = []
+
+@conf
+def check_java_class(self, classname, with_classpath=None):
+ """
+ Checks if the specified java class exists
+
+ :param classname: class to check, like java.util.HashMap
+ :type classname: string
+ :param with_classpath: additional classpath to give
+ :type with_classpath: string
+ """
+ javatestdir = '.waf-javatest'
+
+ classpath = javatestdir
+ if self.env.CLASSPATH:
+ classpath += os.pathsep + self.env.CLASSPATH
+ if isinstance(with_classpath, str):
+ classpath += os.pathsep + with_classpath
+
+ shutil.rmtree(javatestdir, True)
+ os.mkdir(javatestdir)
+
+ Utils.writef(os.path.join(javatestdir, 'Test.java'), class_check_source)
+
+ # Compile the source
+ self.exec_command(self.env.JAVAC + [os.path.join(javatestdir, 'Test.java')], shell=False)
+
+ # Try to run the app
+ cmd = self.env.JAVA + ['-cp', classpath, 'Test', classname]
+ self.to_log("%s\n" % str(cmd))
+ found = self.exec_command(cmd, shell=False)
+
+ self.msg('Checking for java class %s' % classname, not found)
+
+ shutil.rmtree(javatestdir, True)
+
+ return found
+
+@conf
+def check_jni_headers(conf):
+ """
+ Checks for jni headers and libraries. On success the conf.env variables xxx_JAVA are added for use in C/C++ targets::
+
+ def options(opt):
+ opt.load('compiler_c')
+
+ def configure(conf):
+ conf.load('compiler_c java')
+ conf.check_jni_headers()
+
+ def build(bld):
+ bld.shlib(source='a.c', target='app', use='JAVA')
+ """
+ if not conf.env.CC_NAME and not conf.env.CXX_NAME:
+ conf.fatal('load a compiler first (gcc, g++, ..)')
+
+ if not conf.env.JAVA_HOME:
+ conf.fatal('set JAVA_HOME in the system environment')
+
+ # jni requires the jvm
+ javaHome = conf.env.JAVA_HOME[0]
+
+ dir = conf.root.find_dir(conf.env.JAVA_HOME[0] + '/include')
+ if dir is None:
+ dir = conf.root.find_dir(conf.env.JAVA_HOME[0] + '/../Headers') # think different?!
+ if dir is None:
+ conf.fatal('JAVA_HOME does not seem to be set properly')
+
+ f = dir.ant_glob('**/(jni|jni_md).h')
+ incDirs = [x.parent.abspath() for x in f]
+
+ dir = conf.root.find_dir(conf.env.JAVA_HOME[0])
+ f = dir.ant_glob('**/*jvm.(so|dll|dylib)')
+ libDirs = [x.parent.abspath() for x in f] or [javaHome]
+
+ # On windows, we need both the .dll and .lib to link. On my JDK, they are
+ # in different directories...
+ f = dir.ant_glob('**/*jvm.(lib)')
+ if f:
+ libDirs = [[x, y.parent.abspath()] for x in libDirs for y in f]
+
+ if conf.env.DEST_OS == 'freebsd':
+ conf.env.append_unique('LINKFLAGS_JAVA', '-pthread')
+ for d in libDirs:
+ try:
+ conf.check(header_name='jni.h', define_name='HAVE_JNI_H', lib='jvm',
+ libpath=d, includes=incDirs, uselib_store='JAVA', uselib='JAVA')
+ except Exception:
+ pass
+ else:
+ break
+ else:
+ conf.fatal('could not find lib jvm in %r (see config.log)' % libDirs)
+
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-16 13:55:59 +0000