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111 lines
3.4 KiB
Python
111 lines
3.4 KiB
Python
#!/usr/bin/env python
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# encoding: utf-8
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# Thomas Nagy, 2010 (ita)
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# Przemyslaw Rzepecki, 2016
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"""
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Erlang support
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"""
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import re
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from waflib import Task, TaskGen
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from waflib.TaskGen import feature, after_method, before_method
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# to load the method "to_incnodes" below
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from waflib.Tools import ccroot
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# Those flags are required by the Erlang VM to execute/evaluate code in
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# non-interactive mode. It is used in this tool to create Erlang modules
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# documentation and run unit tests. The user can pass additional arguments to the
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# 'erl' command with ERL_FLAGS environment variable.
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EXEC_NON_INTERACTIVE = ['-noshell', '-noinput', '-eval']
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def configure(conf):
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conf.find_program('erlc', var='ERLC')
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conf.find_program('erl', var='ERL')
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conf.add_os_flags('ERLC_FLAGS')
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conf.add_os_flags('ERL_FLAGS')
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conf.env.ERLC_DEF_PATTERN = '-D%s'
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conf.env.ERLC_INC_PATTERN = '-I%s'
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@TaskGen.extension('.erl')
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def process_erl_node(self, node):
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tsk = self.create_task('erl', node, node.change_ext('.beam'))
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tsk.erlc_incnodes = [tsk.outputs[0].parent] + self.to_incnodes(self.includes)
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tsk.env.append_value('ERLC_INCPATHS', [x.abspath() for x in tsk.erlc_incnodes])
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tsk.env.append_value('ERLC_DEFINES', self.to_list(getattr(self, 'defines', [])))
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tsk.env.append_value('ERLC_FLAGS', self.to_list(getattr(self, 'flags', [])))
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tsk.cwd = tsk.outputs[0].parent
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class erl(Task.Task):
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color = 'GREEN'
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run_str = '${ERLC} ${ERL_FLAGS} ${ERLC_INC_PATTERN:ERLC_INCPATHS} ${ERLC_DEF_PATTERN:ERLC_DEFINES} ${SRC}'
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def scan(task):
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node = task.inputs[0]
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deps = []
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scanned = set([])
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nodes_to_scan = [node]
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for n in nodes_to_scan:
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if n.abspath() in scanned:
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continue
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for i in re.findall(r'-include\("(.*)"\)\.', n.read()):
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for d in task.erlc_incnodes:
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r = d.find_node(i)
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if r:
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deps.append(r)
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nodes_to_scan.append(r)
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break
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scanned.add(n.abspath())
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return (deps, [])
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@TaskGen.extension('.beam')
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def process(self, node):
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pass
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class erl_test(Task.Task):
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color = 'BLUE'
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run_str = '${ERL} ${ERL_FLAGS} ${ERL_TEST_FLAGS}'
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@feature('eunit')
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@after_method('process_source')
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def add_erl_test_run(self):
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test_modules = [t.outputs[0] for t in self.tasks]
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test_task = self.create_task('erl_test')
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test_task.set_inputs(self.source + test_modules)
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test_task.cwd = test_modules[0].parent
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test_task.env.append_value('ERL_FLAGS', self.to_list(getattr(self, 'flags', [])))
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test_list = ", ".join([m.change_ext("").path_from(test_task.cwd)+":test()" for m in test_modules])
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test_flag = 'halt(case lists:all(fun(Elem) -> Elem == ok end, [%s]) of true -> 0; false -> 1 end).' % test_list
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test_task.env.append_value('ERL_TEST_FLAGS', EXEC_NON_INTERACTIVE)
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test_task.env.append_value('ERL_TEST_FLAGS', test_flag)
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class edoc(Task.Task):
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color = 'BLUE'
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run_str = "${ERL} ${ERL_FLAGS} ${ERL_DOC_FLAGS}"
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def keyword(self):
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return 'Generating edoc'
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@feature('edoc')
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@before_method('process_source')
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def add_edoc_task(self):
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# do not process source, it would create double erl->beam task
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self.meths.remove('process_source')
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e = self.path.find_resource(self.source)
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t = e.change_ext('.html')
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png = t.parent.make_node('erlang.png')
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css = t.parent.make_node('stylesheet.css')
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tsk = self.create_task('edoc', e, [t, png, css])
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tsk.cwd = tsk.outputs[0].parent
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tsk.env.append_value('ERL_DOC_FLAGS', EXEC_NON_INTERACTIVE)
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tsk.env.append_value('ERL_DOC_FLAGS', 'edoc:files(["%s"]), halt(0).' % tsk.inputs[0].abspath())
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# TODO the above can break if a file path contains '"'
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