mirror of
https://gitlab.com/ita1024/waf.git
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135 lines
3.9 KiB
Python
135 lines
3.9 KiB
Python
#! /usr/bin/env python
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import os, sys, imp
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from waflib import Context, Options, Configure, Utils, Logs, TaskGen, Task
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import waflib.Tools.c
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"""
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Compile main.c and dependent object files into a single target (program/shlib/stlib or just object files)
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- no build directory and no script files
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- just a c4che directory for the configuration files
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- configure, clean or build
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Uses the task signatures and the dependency calculation results to avoid
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rescanning/rebuilding the files all the time
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"""
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def options(opt):
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opt.add_option('--type', action='store', default='program', help='type: program, shlib, stlib, objects', dest='progtype')
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opt.add_option('--source', action='store', default='main.c', help='space-separated list of source files', dest='source')
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opt.add_option('--app', action='store', default='app', help='name of the binary file to create', dest='app')
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opt.load('compiler_c')
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def configure(conf):
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conf.options = Options.options
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conf.load('compiler_c')
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def build(bld):
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tp = Options.options.progtype
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features = 'c cprogram'
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if tp == 'shlib':
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features = 'c cshlib'
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elif tp == 'stlib':
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features = 'c cstlib'
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elif tp == 'objects':
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features = 'c'
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source = Options.options.source
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app = Options.options.app
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bld(features=features, source=source, target=app)
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def recurse_rep(x, y):
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f = getattr(Context.g_module, x.cmd or x.fun, Utils.nada)
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return f(x)
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def start(cwd, version, wafdir):
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# this is the entry point of our small build system
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# no script file here
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Logs.init_log()
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Context.waf_dir = wafdir
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Context.out_dir = Context.top_dir = Context.run_dir = cwd
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Context.g_module = imp.new_module('wscript')
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Context.g_module.root_path = cwd
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Context.Context.recurse = recurse_rep
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Context.g_module.configure = configure
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Context.g_module.build = build
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Context.g_module.options = options
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Context.g_module.top = Context.g_module.out = '.'
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Options.OptionsContext().execute()
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do_config = 'configure' in sys.argv
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try:
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os.stat(cwd + os.sep + 'c4che')
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except:
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do_config = True
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if do_config:
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Context.create_context('configure').execute()
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if 'clean' in sys.argv:
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Context.create_context('clean').execute()
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if 'build' in sys.argv:
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Context.create_context('build').execute()
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class c2(waflib.Tools.c.c):
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# Make a subclass of the default c task, and bind the .c extension to it
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def runnable_status(self):
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ret = super(waflib.Tools.c.c, self).runnable_status()
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self.more_tasks = []
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# use a cache to avoid creating the same tasks
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# for example, truc.cpp might be compiled twice
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try:
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shared = self.generator.bld.shared_tasks
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except AttributeError:
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shared = self.generator.bld.shared_tasks = {}
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if ret != Task.ASK_LATER:
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for x in self.generator.bld.node_deps[self.uid()]:
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node = x.parent.get_src().find_resource(x.name.replace('.h', '.c'))
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if node:
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try:
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tsk = shared[node]
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except:
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tsk = shared[node] = self.generator.c_hook(node)
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self.more_tasks.append(tsk)
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# add the node created to the link task outputs
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try:
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link = self.generator.link_task
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except AttributeError:
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pass
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else:
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if not tsk.outputs[0] in link.inputs:
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link.inputs.append(tsk.outputs[0])
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link.set_run_after(tsk)
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# any change in the order of the input nodes may cause a recompilation
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link.inputs.sort(key=lambda x: x.abspath())
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# if you want to modify some flags
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# you *must* have the task recompute the signature
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self.env.append_value('CXXFLAGS', '-O2')
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delattr(self, 'cache_sig')
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return super(waflib.Tools.c.c, self).runnable_status()
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return ret
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@TaskGen.extension('.c')
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def c_hook(self, node):
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# re-bind the extension to this new class
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return self.create_compiled_task('c2', node)
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# modify the existing class to output the targets in the same directory as the original files
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Task.update_outputs(c2)
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Task.update_outputs(waflib.Tools.c.cprogram)
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Task.update_outputs(waflib.Tools.c.cshlib)
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Task.update_outputs(waflib.Tools.c.cstlib)
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