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authorDavid Robillard <d@drobilla.net>2018-09-15 14:51:03 +0200
committerDavid Robillard <d@drobilla.net>2018-09-15 14:51:03 +0200
commitc2b0355b0de23f6ec83b5fa5be038bcce208e26f (patch)
treeff0760d5f3f0e994413c8c1dff7a4fed37914bee /extras/scala.py
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Squashed 'waflib/' content from commit 982416b
git-subtree-dir: waflib git-subtree-split: 982416b8a6c6728e200243e1be3ab60435c08830
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+#!/usr/bin/env python
+# encoding: utf-8
+# Thomas Nagy, 2010 (ita)
+
+"""
+Scala support
+
+scalac outputs files a bit where it wants to
+"""
+
+import os
+from waflib import Task, Utils, Node
+from waflib.TaskGen import feature, before_method, after_method
+
+from waflib.Tools import ccroot
+ccroot.USELIB_VARS['scalac'] = set(['CLASSPATH', 'SCALACFLAGS'])
+
+from waflib.Tools import javaw
+
+@feature('scalac')
+@before_method('process_source')
+def apply_scalac(self):
+
+ 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.env['OUTDIR'] = outdir.abspath()
+
+ self.scalac_task = tsk = self.create_task('scalac')
+ 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
+
+# reuse some code
+feature('scalac')(javaw.use_javac_files)
+after_method('apply_scalac')(javaw.use_javac_files)
+
+feature('scalac')(javaw.set_classpath)
+after_method('apply_scalac', 'use_scalac_files')(javaw.set_classpath)
+
+
+SOURCE_RE = '**/*.scala'
+class scalac(javaw.javac):
+ color = 'GREEN'
+ vars = ['CLASSPATH', 'SCALACFLAGS', 'SCALAC', 'OUTDIR']
+
+ def runnable_status(self):
+ """
+ Wait 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:
+ global SOURCE_RE
+ self.inputs = []
+ for x in self.srcdir:
+ self.inputs.extend(x.ant_glob(SOURCE_RE, remove=False))
+ return super(javaw.javac, self).runnable_status()
+
+ def run(self):
+ """
+ Execute the scalac compiler
+ """
+ env = self.env
+ gen = self.generator
+ bld = gen.bld
+ wd = bld.bldnode.abspath()
+ def to_list(xx):
+ if isinstance(xx, str):
+ return [xx]
+ return xx
+ self.last_cmd = lst = []
+ lst.extend(to_list(env['SCALAC']))
+ lst.extend(['-classpath'])
+ lst.extend(to_list(env['CLASSPATH']))
+ lst.extend(['-d'])
+ lst.extend(to_list(env['OUTDIR']))
+ lst.extend(to_list(env['SCALACFLAGS']))
+ lst.extend([a.abspath() for a in self.inputs])
+ lst = [x for x in lst if x]
+ try:
+ self.out = self.generator.bld.cmd_and_log(lst, cwd=wd, env=env.env or None, output=0, quiet=0)[1]
+ except:
+ self.generator.bld.cmd_and_log(lst, cwd=wd, env=env.env or None)
+
+def configure(self):
+ """
+ Detect the scalac program
+ """
+ # If SCALA_HOME is set, we prepend it to the path list
+ java_path = self.environ['PATH'].split(os.pathsep)
+ v = self.env
+
+ if 'SCALA_HOME' in self.environ:
+ java_path = [os.path.join(self.environ['SCALA_HOME'], 'bin')] + java_path
+ self.env['SCALA_HOME'] = [self.environ['SCALA_HOME']]
+
+ for x in 'scalac scala'.split():
+ self.find_program(x, var=x.upper(), path_list=java_path)
+
+ if 'CLASSPATH' in self.environ:
+ v['CLASSPATH'] = self.environ['CLASSPATH']
+
+ v.SCALACFLAGS = ['-verbose']
+ if not v['SCALAC']:
+ self.fatal('scalac is required for compiling scala classes')
+