diff options
Diffstat (limited to 'bitbake/lib/bb/cache.py')
| -rw-r--r-- | bitbake/lib/bb/cache.py | 98 |
1 files changed, 59 insertions, 39 deletions
diff --git a/bitbake/lib/bb/cache.py b/bitbake/lib/bb/cache.py index 23845bc07..93dccf21f 100644 --- a/bitbake/lib/bb/cache.py +++ b/bitbake/lib/bb/cache.py @@ -232,48 +232,57 @@ class Cache(object): bb_data = cls.load_bbfile(fn, appends, cfgData) return bb_data[virtual] - def loadData(self, fn, appends, cfgData, cacheData): - """ - Load a subset of data for fn. - If the cached data is valid we do nothing, - To do this, we need to parse the file and set the system - to record the variables accessed. - Return the cache status and whether the file was skipped when parsed - """ - skipped, virtuals = 0, 0 + @classmethod + def parse(cls, filename, appends, configdata): + """Parse the specified filename, returning the recipe information""" + infos = [] + datastores = cls.load_bbfile(filename, appends, configdata) + depends = set() + for variant, data in sorted(datastores.iteritems(), + key=lambda i: i[0], + reverse=True): + virtualfn = cls.realfn2virtual(filename, variant) + depends |= (data.getVar("__depends", False) or set()) + if depends and not variant: + data.setVar("__depends", depends) + info = RecipeInfo.from_metadata(filename, data) + infos.append((virtualfn, info)) + return infos + + def load(self, filename, appends, configdata): + """Obtain the recipe information for the specified filename, + using cached values if available, otherwise parsing. + + Note that if it does parse to obtain the info, it will not + automatically add the information to the cache or to your + CacheData. Use the add or add_info method to do so after + running this, or use loadData instead.""" + cached = self.cacheValid(filename) + if cached: + infos = [] + info = self.depends_cache[filename] + for variant in info.variants: + virtualfn = self.realfn2virtual(filename, variant) + infos.append((virtualfn, self.depends_cache[virtualfn])) + else: + logger.debug(1, "Parsing %s", filename) + return self.parse(filename, appends, configdata) - if fn not in self.checked: - self.cacheValidUpdate(fn) + return cached, infos - cached = self.cacheValid(fn) - if not cached: - logger.debug(1, "Parsing %s", fn) - datastores = self.load_bbfile(fn, appends, cfgData) - depends = set() - for variant, data in sorted(datastores.iteritems(), - key=lambda i: i[0], - reverse=True): - virtualfn = self.realfn2virtual(fn, variant) - depends |= (data.getVar("__depends", False) or set()) - if depends and not variant: - data.setVar("__depends", depends) - info = RecipeInfo.from_metadata(fn, data) - if not info.nocache: - # The recipe was parsed, and is not marked as being - # uncacheable, so we need to ensure that we write out the - # new cache data. - self.cacheclean = False - self.depends_cache[virtualfn] = info + def loadData(self, fn, appends, cfgData, cacheData): + """Load the recipe info for the specified filename, + parsing and adding to the cache if necessary, and adding + the recipe information to the supplied CacheData instance.""" + skipped, virtuals = 0, 0 - info = self.depends_cache[fn] - for variant in info.variants: - virtualfn = self.realfn2virtual(fn, variant) - vinfo = self.depends_cache[virtualfn] - if vinfo.skipped: + cached, infos = self.load(fn, appends, cfgData) + for virtualfn, info in infos: + if info.skipped: logger.debug(1, "Skipping %s", virtualfn) skipped += 1 else: - cacheData.add_from_recipeinfo(virtualfn, vinfo) + self.add_info(virtualfn, info, cacheData, not cached) virtuals += 1 return cached, skipped, virtuals @@ -283,6 +292,9 @@ class Cache(object): Is the cache valid for fn? Fast version, no timestamps checked. """ + if fn not in self.checked: + self.cacheValidUpdate(fn) + # Is cache enabled? if not self.has_cache: return False @@ -412,14 +424,22 @@ class Cache(object): def mtime(cachefile): return bb.parse.cached_mtime_noerror(cachefile) - def add(self, file_name, data, cacheData): + def add_info(self, filename, info, cacheData, parsed=None): + self.depends_cache[filename] = info + cacheData.add_from_recipeinfo(filename, info) + if parsed and not info.nocache: + # The recipe was parsed, and is not marked as being + # uncacheable, so we need to ensure that we write out the + # new cache data. + self.cacheclean = False + + def add(self, file_name, data, cacheData, parsed=None): """ Save data we need into the cache """ realfn = self.virtualfn2realfn(file_name)[0] info = RecipeInfo.from_metadata(realfn, data) - self.depends_cache[file_name] = info - cacheData.add_from_recipeinfo(file_name, info) + self.add_info(file_name, info, cacheData, parsed) @staticmethod def load_bbfile(bbfile, appends, config): |