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Diffstat (limited to 'waflib/extras/make.py')
-rw-r--r-- | waflib/extras/make.py | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/waflib/extras/make.py b/waflib/extras/make.py deleted file mode 100644 index 933d9ca..0000000 --- a/waflib/extras/make.py +++ /dev/null @@ -1,142 +0,0 @@ -#!/usr/bin/env python -# encoding: utf-8 -# Thomas Nagy, 2011 (ita) - -""" -A make-like way of executing the build, following the relationships between inputs/outputs - -This algorithm will lead to slower builds, will not be as flexible as "waf build", but -it might be useful for building data files (?) - -It is likely to break in the following cases: -- files are created dynamically (no inputs or outputs) -- headers -- building two files from different groups -""" - -import re -from waflib import Options, Task -from waflib.Build import BuildContext - -class MakeContext(BuildContext): - '''executes tasks in a step-by-step manner, following dependencies between inputs/outputs''' - cmd = 'make' - fun = 'build' - - def __init__(self, **kw): - super(MakeContext, self).__init__(**kw) - self.files = Options.options.files - - def get_build_iterator(self): - if not self.files: - while 1: - yield super(MakeContext, self).get_build_iterator() - - for g in self.groups: - for tg in g: - try: - f = tg.post - except AttributeError: - pass - else: - f() - - provides = {} - uses = {} - all_tasks = [] - tasks = [] - for pat in self.files.split(','): - matcher = self.get_matcher(pat) - for tg in g: - if isinstance(tg, Task.Task): - lst = [tg] - else: - lst = tg.tasks - for tsk in lst: - all_tasks.append(tsk) - - do_exec = False - for node in tsk.inputs: - try: - uses[node].append(tsk) - except: - uses[node] = [tsk] - - if matcher(node, output=False): - do_exec = True - break - - for node in tsk.outputs: - try: - provides[node].append(tsk) - except: - provides[node] = [tsk] - - if matcher(node, output=True): - do_exec = True - break - if do_exec: - tasks.append(tsk) - - # so we have the tasks that we need to process, the list of all tasks, - # the map of the tasks providing nodes, and the map of tasks using nodes - - if not tasks: - # if there are no tasks matching, return everything in the current group - result = all_tasks - else: - # this is like a big filter... - result = set() - seen = set() - cur = set(tasks) - while cur: - result |= cur - tosee = set() - for tsk in cur: - for node in tsk.inputs: - if node in seen: - continue - seen.add(node) - tosee |= set(provides.get(node, [])) - cur = tosee - result = list(result) - - Task.set_file_constraints(result) - Task.set_precedence_constraints(result) - yield result - - while 1: - yield [] - - def get_matcher(self, pat): - # this returns a function - inn = True - out = True - if pat.startswith('in:'): - out = False - pat = pat.replace('in:', '') - elif pat.startswith('out:'): - inn = False - pat = pat.replace('out:', '') - - anode = self.root.find_node(pat) - pattern = None - if not anode: - if not pat.startswith('^'): - pat = '^.+?%s' % pat - if not pat.endswith('$'): - pat = '%s$' % pat - pattern = re.compile(pat) - - def match(node, output): - if output and not out: - return False - if not output and not inn: - return False - - if anode: - return anode == node - else: - return pattern.match(node.abspath()) - return match - |