diff options
Diffstat (limited to 'buildstream/source.py')
| -rw-r--r-- | buildstream/source.py | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/buildstream/source.py b/buildstream/source.py index 6f4ff575b..94cb82e2f 100644 --- a/buildstream/source.py +++ b/buildstream/source.py @@ -286,6 +286,15 @@ class Source(Plugin): *Since: 1.4* """ + BST_REQUIRES_PREVIOUS_SOURCES_CACHE = False + """Whether access to previous sources is required during cache + + When set to True: + * all sources listed before current source in the given element will be + passed to the source when it's cached. + * This source can not be the first source for an element. + """ + def __init__(self, context, project, meta, *, alias_override=None): provenance = _yaml.node_get_provenance(meta.config) super().__init__("{}-{}".format(meta.element_name, meta.element_index), @@ -709,7 +718,10 @@ class Source(Plugin): def _cache(self, previous_sources): # stage the source into the source cache - self.__source_cache.commit(self, previous_sources) + if self.BST_REQUIRES_PREVIOUS_SOURCES_CACHE: + self.__source_cache.commit(self, previous_sources) + else: + self.__source_cache.commit(self, []) # Wrapper for stage() api which gives the source # plugin a fully constructed path considering the |