def _needs_recompile(self, dependency_graph, source_file):
md5 = source_file.md5()
md5_file_name = self._hash_file_name_of(source_file)
if not ostools.file_exists(md5_file_name):
logger.debug("%s has no vunit_hash file at %s and must be recompiled",
source_file.name, md5_file_name)
return True
old_md5 = ostools.read_file(md5_file_name)
if old_md5 != md5:
logger.debug("%s has different hash than last time and must be recompiled",
source_file.name)
return True
for other_file in dependency_graph.get_dependencies(source_file):
other_md5_file_name = self._hash_file_name_of(other_file)
if not ostools.file_exists(other_md5_file_name):
continue
if ostools.get_modification_time(other_md5_file_name) > ostools.get_modification_time(md5_file_name):
logger.debug("%s has dependency compiled earlier and must be recompiled",
source_file.name)
return True
logger.debug("%s has same hash file and must not be recompiled",
source_file.name)
return False
def more_recent(file_name, than_file_name):
"""
Returns True if the modification time of file_name is more recent
than_file_name
"""
mtime = ostools.get_modification_time(file_name)
than_mtime = ostools.get_modification_time(than_file_name)
return mtime > than_mtime
def more_recent(file_name, than_file_name):
"""
Returns True if the modification time of file_name is more recent
than_file_name
"""
mtime = ostools.get_modification_time(file_name)
than_mtime = ostools.get_modification_time(than_file_name)
return mtime > than_mtime
def _get_compile_timestamps(self, files):
"""
Return a dictionary of mapping file to the timestamp when it
was compiled or None if it was not compiled
"""
# Cache timestamps to avoid duplicate file operations
timestamps = {}
for source_file in files:
hash_file_name = self._hash_file_name_of(source_file)
if not ostools.file_exists(hash_file_name):
timestamps[source_file] = None
else:
timestamps[source_file] = ostools.get_modification_time(hash_file_name)
return timestamps
