mirror of https://gitlab.com/ita1024/waf.git
Detect configuration changes
This commit is contained in:
Thomas Nagy
parent
5468e0031b
commit
7003858752
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@ -14,85 +14,62 @@ a single file change.
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Assuptions:
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* Mostly for C/C++/Fortran targets with link tasks (object-only targets are not handled)
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* This is only for full project builds, so this does not interfere with --targets
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* Building from a subfolder does not prune targets from that folder
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* For full project builds: no --targets and no pruning from subfolders
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* The installation phase is ignored
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* `use=` dependencies are fully specified up front even across build groups
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* Files are not modified while building
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* Task generator source files are not obtained from globs
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"""
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import os
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from waflib import Build, Errors, Logs, Task, Runner, Utils
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from waflib import Build, Context, Errors, Logs, Task, Runner, Utils
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from waflib.TaskGen import feature, after_method, taskgen_method
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DONE = 0
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DIRTY = 1
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NEEDED = 2
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STALE_FLAG_FILE_COMMITTED = '.stale-flag-committed'
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STALE_FLAG_FILE_TMP = '.stale-flag-tmp'
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SKIPPABLE = ['cshlib', 'cxxshlib', 'cstlib', 'cxxstlib', 'cprogram', 'cxxprogram']
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class bld(Build.BuildContext):
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def store(self):
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if self.producer.dirty:
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# For each task generator, record all files involved in task objects
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# optimization: done only if there was something built
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for g in self.groups:
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for tg in g:
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do_cache = False
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for tsk in tg.tasks:
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if tsk.hasrun == Task.SUCCESS:
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do_cache = True
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pass
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elif tsk.hasrun == Task.SKIPPED:
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pass
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else:
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# dependencies are incomplete, clear the cache
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try:
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del self.raw_deps[(tg.path.abspath(), tg.idx)]
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except KeyError:
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pass
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break
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# For each task generator, record all files involved in task objects
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# optimization: done only if there was something built
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for g in self.groups:
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for tg in g:
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do_cache = False
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for tsk in tg.tasks:
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if tsk.hasrun == Task.SUCCESS:
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do_cache = True
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pass
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elif tsk.hasrun == Task.SKIPPED:
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pass
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else:
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if not do_cache:
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try:
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self.raw_deps[(tg.path.abspath(), tg.idx)]
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except KeyError:
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# probably cleared because a wscript file changed
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do_cache = True
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# dependencies are incomplete, clear the cache
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try:
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del self.raw_deps[(tg.path.abspath(), tg.idx)]
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except KeyError:
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pass
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break
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else:
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if not do_cache:
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try:
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self.raw_deps[(tg.path.abspath(), tg.idx)]
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except KeyError:
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# probably cleared because a wscript file changed
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do_cache = True
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if do_cache:
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st = set()
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for tsk in tg.tasks:
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st.update(tsk.inputs)
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st.update(self.node_deps.get(tsk.uid(), []))
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lst = list(sorted(x.abspath() for x in st))
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self.raw_deps[(tg.path.abspath(), tg.idx)] = lst
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if do_cache:
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st = set()
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for tsk in tg.tasks:
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st.update(tsk.inputs)
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st.update(self.node_deps.get(tsk.uid(), []))
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stale_file_tmp = os.path.join(self.variant_dir, STALE_FLAG_FILE_TMP)
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stale_file_committed = os.path.join(self.variant_dir, STALE_FLAG_FILE_COMMITTED)
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os.rename(stale_file_tmp, stale_file_committed)
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lst = [x.abspath() for x in tg.path.ant_glob('wscript*')]
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lst.extend(sorted(x.abspath() for x in st))
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tss = [os.stat(x).st_mtime for x in lst]
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self.raw_deps[(tg.path.abspath(), tg.idx)] = (lst, tss)
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if self.producer.dirty:
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return Build.BuildContext.store(self)
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def compile(self):
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Logs.debug('build: compile()')
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self.producer = Runner.Parallel(self, self.jobs)
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self.producer.biter = self.get_build_iterator()
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try:
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self.producer.start()
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except KeyboardInterrupt:
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self.store()
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raise
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else:
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# always store here
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self.store()
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if self.producer.error:
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raise Errors.BuildError(self.producer.error)
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return Build.BuildContext.store(self)
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def compute_needed_tgs(self):
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# assume the 'use' keys are not modified during the build phase
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@ -177,8 +154,6 @@ class bld(Build.BuildContext):
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def get_build_iterator(self):
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if not self.targets or self.targets == '*':
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stale_file_tmp = os.path.join(self.variant_dir, STALE_FLAG_FILE_TMP)
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Utils.writef(stale_file_tmp, '')
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self.compute_needed_tgs()
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return Build.BuildContext.get_build_iterator(self)
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@ -187,26 +162,28 @@ def is_stale(self):
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# assume no globs
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self.staleness = DIRTY
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# 0. the case of always stale targets
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# 1. the case of always stale targets
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if getattr(self, 'always_stale', False):
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return True
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db = os.path.join(self.bld.variant_dir, STALE_FLAG_FILE_COMMITTED)
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# 2. check if the db file exists
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db = os.path.join(self.bld.variant_dir, Context.DBFILE)
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try:
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dbstat = os.stat(db).st_mtime
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except OSError:
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Logs.debug('rev_use: must post %r because this is a clean build')
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return True
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# 1. check if the configuration changed
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if os.stat(self.bld.bldnode.find_node('c4che').abspath()).st_mtime > dbstat:
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# 3. check if the configuration changed
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if os.stat(self.bld.bldnode.find_node('c4che/build.config.py').abspath()).st_mtime > dbstat:
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Logs.debug('rev_use: must post %r because the configuration has changed', self.name)
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return True
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# 2. check if this is the first build (no cache)
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# 4. check if this is the first build (no cache)
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try:
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lst = self.bld.raw_deps[(self.path.abspath(), self.idx)]
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lst, tss = self.bld.raw_deps[(self.path.abspath(), self.idx)]
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except KeyError:
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Logs.debug('rev_use: must post %r because there is no cached data', self.name)
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Logs.debug('rev_use: must post %r because there it has no cached data', self.name)
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return True
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@ -223,23 +200,8 @@ def is_stale(self):
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ret = cache[x] = os.stat(x).st_mtime
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return ret
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# 3. double-check if this is the first build
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rev_path = os.path.join(self.bld.variant_dir, STALE_FLAG_FILE_COMMITTED)
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try:
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dbstat = tstamp(rev_path)
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except OSError:
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Logs.debug('rev_use: must post %r because there is no rev path file %r', self.name, rev_path)
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return True
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# 4. check if the wscript file changed from the previous dep storage
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# assume that the folder timestamp reflects the wscript state
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folder_tstamp = os.stat(self.path.abspath()).st_mtime
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if folder_tstamp >= dbstat:
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Logs.debug('rev_use: must post %r because the tg definition may have changed', self.name)
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return True
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# 5. check the timestamp of dependency files listed are not newer than the last build
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for x in lst:
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# 5. check the timestamp of each dependency files listed is unchanged
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for x, old_ts in zip(lst, tss):
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try:
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ts = tstamp(x)
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except OSError:
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@ -247,8 +209,8 @@ def is_stale(self):
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Logs.debug('rev_use: must post %r because %r does not exist anymore', self.name, x)
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return True
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else:
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if ts >= dbstat:
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Logs.debug('rev_use: must post %r because %r is newer than the db file', self.name, x)
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if ts != old_ts:
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Logs.debug('rev_use: must post %r because the timestamp on %r changed %r %r', self.name, x, old_ts, ts)
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return True
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self.staleness = DONE
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