1d9629566c
- postpone building until really needed - rebuild only if artifacts change - no build on source update - prune takes current resolver state instead of global var
46 lines
1.8 KiB
Python
46 lines
1.8 KiB
Python
'''
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Static collector for build-artifact urls.
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All non-tracked VPATH-urls will be pruned after build.
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'''
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from lektor.reporter import reporter # report_pruned_artifact
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from lektor.utils import prune_file_and_folder
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from typing import TYPE_CHECKING, Set, Iterable
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if TYPE_CHECKING:
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from lektor.builder import Builder
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def _normalize_url_cache(url_cache: Iterable[str]) -> Set[str]:
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cache = set()
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for url in url_cache:
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if url.endswith('/'):
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url += 'index.html'
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cache.add(url.lstrip('/'))
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return cache
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def prune(builder: 'Builder', vpath: str, url_cache: Iterable[str]) -> None:
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'''
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Remove previously generated, unreferenced Artifacts.
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All urls in url_cache must have a trailing "/index.html" (instead of "/")
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and also, no leading slash, "blog/index.html" instead of "/blog/index.html"
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'''
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vpath = '@' + vpath.lstrip('@') # just in case of user error
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dest_path = builder.destination_path
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url_cache = _normalize_url_cache(url_cache)
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con = builder.connect_to_database()
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try:
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with builder.new_build_state() as build_state:
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for url, file in build_state.iter_artifacts():
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if url.lstrip('/') in url_cache:
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continue # generated in this build-run
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infos = build_state.get_artifact_dependency_infos(url, [])
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for artifact_name, _ in infos:
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if vpath not in artifact_name:
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continue # we only care about our Virtuals
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reporter.report_pruned_artifact(url)
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prune_file_and_folder(file.filename, dest_path)
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build_state.remove_artifact(url)
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break # there is only one VPATH-entry per source
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finally:
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con.close()
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