diff options
Diffstat (limited to 'tools/shared.py')
| -rw-r--r-- | tools/shared.py | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tools/shared.py b/tools/shared.py index 83c837c8..02d92855 100644 --- a/tools/shared.py +++ b/tools/shared.py @@ -1153,6 +1153,9 @@ class Cache: shutil.copyfile(creator(), cachename) return cachename +# JS-specific cache. We cache the results of compilation and optimization, +# so that in incremental builds we can just load from cache. +# We cache reasonably-large-sized chunks class JCache: dirname = os.path.join(Cache.dirname, 'jcache') @@ -1202,6 +1205,31 @@ class JCache: cachename = JCache.get_cachename(shortkey) cPickle.Pickler(open(cachename, 'wb')).dump([keys, value]) + # Given a set of functions of form (ident, text), and a preferred chunk size, + # generates a set of chunks for parallel processing and caching. + # It is very important to generate similar chunks in incremental builds, in + # order to maximize the chance of cache hits. + @staticmethod + def chunkify(funcs, chunk_size): + chunks = [] # bundles of functions + curr = [] + for i in range(len(funcs)): + func = funcs[i] + if len(curr) + len(func[1]) < chunk_size: + curr.append(func) + else: + chunks.append(curr) + curr = [func] + if curr: + chunks.append(curr) + curr = None + return chunks + +class JS: + @staticmethod + def to_nice_ident(ident): # limited version of the JS function toNiceIdent + return ident.replace('%', '$').replace('@', '_'); + # Compression of code and data for smaller downloads class Compression: on = False |