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Crawl a bit more iteratively

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This commit is contained in:
I-Al-Istannen 2020-05-30 15:35:58 +02:00
parent 9d6ce331a5
commit 086b15d10f
1 changed files with 25 additions and 12 deletions
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37
PFERD/ilias/crawler.py
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@ -161,7 +161,10 @@ class IliasCrawler:
entries: List[IliasCrawlerEntry]
) -> List[IliasDownloadInfo]:
result: List[IliasDownloadInfo] = []
for entry in entries:
entries_to_process: List[IliasCrawlerEntry] = entries.copy()
while len(entries_to_process) > 0:
entry = entries_to_process.pop()
if entry.entry_type == IliasElementType.EXTERNAL_LINK:
PRETTY.not_searching(entry.path, "external link")
continue
@ -176,6 +179,25 @@ class IliasCrawler:
download_info = entry.to_download_info()
if download_info is not None:
result.append(download_info)
continue
url = entry.url()
if url is None:
PRETTY.warning(f"Could not find url for {str(entry.path)!r}, skipping it")
continue
PRETTY.searching(entry.path)
if entry.entry_type == IliasElementType.EXERCISE_FOLDER:
entries_to_process += self._crawl_exercises(entry.path, url)
continue
if entry.entry_type == IliasElementType.REGULAR_FOLDER:
entries_to_process += self._crawl_folder(entry.path, url)
continue
if entry.entry_type == IliasElementType.VIDEO_FOLDER:
entries_to_process += self._crawl_video_directory(entry.path, url)
continue
return result
@ -188,8 +210,6 @@ class IliasCrawler:
"""
Decides which sub crawler to use for a given top level element.
"""
PRETTY.searching(path)
parsed_url = urlparse(url)
LOGGER.debug("Parsed url: %r", parsed_url)
@ -510,16 +530,9 @@ class IliasCrawler:
element_path = Path(folder_path, link.getText().strip())
element_type = self._find_type_from_link(element_path, link, abs_url)
if element_type == IliasElementType.EXERCISE_FOLDER:
result += self._crawl_exercises(element_path, abs_url)
elif element_type == IliasElementType.REGULAR_FOLDER:
result += self._crawl_folder(element_path, abs_url)
elif element_type == IliasElementType.VIDEO_FOLDER:
result += self._crawl_video_directory(element_path, abs_url)
elif element_type == IliasElementType.REGULAR_FILE:
result += self._crawl_file(element_path, link, abs_url)
if element_type == IliasElementType.REGULAR_FILE:
result += self._crawl_file(folder_path, link, abs_url)
elif element_type is not None:
LOGGER.info(f"Just appending entry {element_type} {str(element_path)!r}")
result += [IliasCrawlerEntry(element_path, abs_url, element_type, None)]
else:
PRETTY.warning(f"Found element without a type at {str(element_path)!r}")