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- #! /usr/bin/env python
- # encoding: utf-8
- # Thomas Nagy, 2010 (ita)
- """
- Calling 'waf build' executes a normal build with Waf
- Calling 'waf clean dump' will create a makefile corresponding to the build
- The dependencies will be extracted too
- """
- VERSION='0.0.1'
- APPNAME='cc_test'
- top = '.'
- def options(opt):
- opt.load('compiler_c')
- def configure(conf):
- conf.load('compiler_c')
- def build(bld):
- bld.program(source='main.c', target='app', use='mylib', cflags=['-O2'])
- bld.stlib(source='a.c', target='mylib')
- # ---------------------------------------------------------------------------
- from waflib import Build, Logs
- class Dumper(Build.BuildContext):
- fun = 'dump'
- cmd = 'dump'
- def dump(bld):
- # call the build function as if a real build were performed
- build(bld)
- from waflib import Task
- bld.commands = []
- bld.targets = []
- # store the command executed
- old_exec = Task.Task.exec_command
- def exec_command(self, *k, **kw):
- ret = old_exec(self, *k, **kw)
- self.command_executed = k[0]
- self.path = kw['cwd'] or self.generator.bld.cwd
- return ret
- Task.Task.exec_command = exec_command
- # perform a fake build, and accumulate the makefile bits
- old_process = Task.Task.process
- def process(self):
- old_process(self)
- lst = []
- for x in self.outputs:
- lst.append(x.path_from(self.generator.bld.bldnode))
- bld.targets.extend(lst)
- lst.append(':')
- for x in self.inputs + self.dep_nodes + self.generator.bld.node_deps.get(self.uid(), []):
- lst.append(x.path_from(self.generator.bld.bldnode))
- try:
- if isinstance(self.command_executed, list):
- self.command_executed = ' '.join(self.command_executed)
- except Exception as e:
- print(e)
- else:
- bld.commands.append(' '.join(lst))
- bld.commands.append('\tcd %s && %s' % (self.path, self.command_executed))
- Task.Task.process = process
- # write the makefile after the build is complete
- def output_makefile(self):
- self.commands.insert(0, "all: %s" % " ".join(self.targets))
- node = self.bldnode.make_node('Makefile')
- node.write('\n'.join(self.commands))
- Logs.warn('Wrote %r', node)
- bld.add_post_fun(output_makefile)
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