def _calculate_deps(js_entrypoint_file_path):
js_sources = set()
source_files = set()
logging.info("Scanning paths for Javascript files...")
for js_path in loader.locate("*.js"):
if not js_path.startswith(coverage.INSTRUMENTED_CODE_PATH):
source_files.add(js_path)
for js_path in source_files:
js_sources.add(closurebuilder._PathSource(js_path))
logging.info("Done")
logging.info("Building dependency tree..")
tree = depstree.DepsTree(js_sources)
# find the namespace of entrypoint
entrypoint_source = closurebuilder._PathSource(js_entrypoint_file_path)
if entrypoint_source.provides:
namespace = entrypoint_source.provides
else:
namespace = entrypoint_source.requires
# namespace = [closurebuilder._PathSource(js_entrypoint_file_path).provides.pop()]
# The Closure Library base file must go first.
base = closurebuilder._GetClosureBaseFile(js_sources)
deps = [base] + tree.GetDependencies(namespace)
logging.info("Done")
return deps
def __init__(self, buildout, name, options):
self.buildout = buildout
self.name = name
self.options = options
self.dependency = options["dependency"]
self.compiler_jar = options.get("jar", DEFAULT_COMPILER_JAR)
self.compiler_flags = [
flag for flag in options.get("flags", "").split() if flag
]
self.extra_js = [
js
for js in self.options.get("extra_js", "").split()
if js]
self.outputdir = self.options["output"]
path_to_source = self.buildout[self.dependency].recipe.path_to_source
sources = path_to_source.values()
tree = DepsTree(sources)
base = closurebuilder._GetClosureBaseFile(sources)
start_wd = os.getcwd()
input_namespaces = set()
for input_path in self.options.get("inputs", "").split():
if not input_path:
continue
js_input = [
source
for source in sources
if source.GetPath() == os.path.join(start_wd, input_path)
]
if len(js_input) != 1:
# logging.error('No source matched input %s', input_path)
raise Exception("No source matched input %s" % input_path)
input_namespaces.update(js_input[0].provides)
input_namespaces.update(
[namespace
for namespace in self.options.get("namespaces", "").split()
if namespace]
)
if not input_namespaces:
raise Exception(
"No namespaces found. At least one namespace must be "
"specified with the --namespace or --input flags.")
deps = [base] + tree.GetDependencies(input_namespaces)
deps_sources = self.extra_js + \
[js_source.GetSourcePath()[1] for js_source in deps]
self.compiled_code = jscompiler.Compile(
self.compiler_jar, deps_sources, self.compiler_flags)
md5name = hashlib.md5()
md5name.update(self.compiled_code)
self.options["filename"] = self.filename = md5name.hexdigest() + ".js"
def build_minified(self):
from distutils import log
import closurebuilder
import treescan
import depstree
log.info('Building minified script "%s", mode: %s',
self.minified, self.output_mode)
log.info('Scanning paths...')
sources = set(
(closurebuilder._PathSource(js_path)
for path in (self.root, self.project,)
for js_path in treescan.ScanTreeForJsFiles(path)
))
log.info('%s sources scanned.', len(sources))
log.info('Building dependency tree..')
tree = depstree.DepsTree(sources)
input_namespaces = set(self.namespaces)
for input_path in self.inputs:
js_input = closurebuilder._GetInputByPath(input_path, sources)
if not js_input:
msg = 'No source matched input %s' % input_path
log.error(msg)
raise DistutilsError, msg
input_namespaces.update(js_input.provides)
if not input_namespaces:
msg = ('No namespaces found. At least one namespace must be '
'specified with the --namespaces or --inputs flags.')
log.error(msg)
raise DistutilsError, msg
base = closurebuilder._GetClosureBaseFile(sources)
deps = [base] + tree.GetDependencies(input_namespaces)
if self.output_mode == 'list':
log.info('Listing files:')
log.info('\n'.join([js_source.GetPath() for js_source in deps]))
log.info('Build successful!')
return
out = open(self.minified, 'w')
if self.output_mode == 'script':
out.writelines([js_source.GetSource() for js_source in deps])
out.close()
log.info('Build successful!')
return
import jscompiler
compiled_source = jscompiler.Compile(
self.compiler_jar,
[js_source.GetPath() for js_source in deps],
self.compiler_flags)
if compiled_source is None:
msg = 'JavaScript compilation failed.'
log.error(msg)
raise DistutilsError, msg
else:
log.info('JavaScript compilation succeeded.')
out.write(compiled_source)
log.info('Build successful!')
out.close()
def _generateModules(sources, modules, keepBaseSeparate=True):
tree = depstree.DepsTree(sources)
# list of tuples, (module_name, file_deps, module_deps_names)
# + we force all modules to be dependent on the base goog module (could inject as a file deps also but this should work and is easier)
baseDep = []
if keepBaseSeparate:
baseDep = ['goog']
depLst = [ (mod[0], tree.GetDependencies(mod[1]), list(baseDep)) for mod in modules ]
# subtract basedeps from "upper" deps
# todo: what to do if a module becomes empty? (i.e a duplicate)
for i in range(len(depLst)):
for j in range(i+1, len(depLst)):
bd = depLst[i]
dp = depLst[j][1]
for d in bd[1]:
try:
dp.remove(d)
except:
pass
# create union of all provides/requires in the deps files per module
global moduleProvides # modulename->set of all provides in module
moduleProvides = {}
global moduleRequires
moduleRequires = {} # modulename->set of all requires in module
for name, deps, moddeps in depLst:
if len(deps) == 0:
out.writelines('Warning - empty module: "' + name + '". Probably due to incorrect module ordering')
moduleProvides[name] = set()
moduleRequires[name] = set()
for src in deps:
for prov in src.provides:
moduleProvides[name].add(prov)
for req in src.requires:
moduleRequires[name].add(req)
# figure out module-module deps
# todo: could/should also verify that all dependecies go "down" (the tree should have fixed this though)
moduleModuleDeps = {} # moduleName->list of module deps
for i in range(len(depLst)-1, -1, -1): # reverse
td = depLst[i]
for j in range(i-1, -1, -1):
bd = depLst[j]
if moduleRequires[td[0]] & moduleProvides[bd[0]]: # intersects? (todo: is there no isintersecting test? (more efficient since we don't actually need the complete intersection set)
td[2].append(bd[0])
# print 'module:', td[0], 'depends on module:', bd[0]
# force goog.base to be present in compilation (note that it will Not become part of any of the modules, only a dummy goog.js will be output)
# (?! this wasn't necessary previously?)
gbase = closurebuilder._GetClosureBaseFile(sources) # _must_ be present!
if keepBaseSeparate:
depLst.insert(0, ('goog', [gbase], [])) # could rename it to make it clearer it is a dummy/helper? ('__goog'?)
moduleProvides['goog'] = set()
moduleRequires['goog'] = set()
else:
depLst[0][1].insert(0, gbase) # inject goog into base module
return depLst
