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[core] Properly handle Delta manifests (update base manifest)

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Also removes the old workaround.
This commit is contained in:
derrod 2020-09-09 10:29:46 +02:00
parent 36d02fa5ce
commit dcbf8db54d
1 changed files with 21 additions and 15 deletions
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36
legendary/core.py
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@ -31,6 +31,7 @@ from legendary.models.manifest import Manifest, ManifestMeta
from legendary.models.chunk import Chunk
from legendary.utils.game_workarounds import is_opt_enabled
from legendary.utils.savegame_helper import SaveGameHelper
from legendary.utils.manifests import combine_manifests
# ToDo: instead of true/false return values for success/failure actually raise an exception that the CLI/GUI
@ -652,6 +653,9 @@ class LegendaryCore:
def get_delta_manifest(self, base_url, old_build_id, new_build_id):
"""Get optimized delta manifest (doesn't seem to exist for most games)"""
if old_build_id == new_build_id:
return None
r = self.egs.unauth_session.get(f'{base_url}/Deltas/{new_build_id}/{old_build_id}.delta')
if r.status_code == 200:
return r.content
@ -667,11 +671,10 @@ class LegendaryCore:
file_exclude_filter: list = None, file_install_tag: list = None,
dl_optimizations: bool = False, dl_timeout: int = 10,
repair: bool = False, repair_use_latest: bool = False,
disable_delta: bool = False, egl_guid: str = ''
) -> (DLManager, AnalysisResult, ManifestMeta):
disable_delta: bool = False, override_delta_manifest: str = '',
egl_guid: str = '') -> (DLManager, AnalysisResult, ManifestMeta):
# load old manifest
old_manifest = None
delta_manifest_used = False
# load old manifest if we have one
if override_old_manifest:
@ -710,19 +713,23 @@ class LegendaryCore:
# save manifest with version name as well for testing/downgrading/etc.
self.lgd.save_manifest(game.app_name, new_manifest_data,
version=new_manifest.meta.build_version)
# also fetch optimized delta manifest (may not exist)
if old_manifest and new_manifest and not (override_old_manifest or override_manifest or disable_delta or
old_manifest.meta.build_id == new_manifest.meta.build_id):
delta_manifest_data = self.get_delta_manifest(randchoice(base_urls),
old_manifest.meta.build_id,
new_manifest.meta.build_id)
# check if we should use a delta manifest or not
disable_delta = disable_delta or ((override_old_manifest or override_manifest) and not override_delta_manifest)
if old_manifest and new_manifest and not disable_delta:
if override_delta_manifest:
self.log.info(f'Overriding delta manifest with "{override_delta_manifest}"')
delta_manifest_data, _ = self.get_uri_manifest(override_delta_manifest)
else:
delta_manifest_data = self.get_delta_manifest(randchoice(base_urls),
old_manifest.meta.build_id,
new_manifest.meta.build_id)
if delta_manifest_data:
delta_manifest = self.load_manifest(delta_manifest_data)
self.log.info(f'Using optimized delta manifest to upgrade from build'
f'"{old_manifest.meta.build_id}" to'
self.log.info(f'Using optimized delta manifest to upgrade from build '
f'"{old_manifest.meta.build_id}" to '
f'"{new_manifest.meta.build_id}"...')
new_manifest = delta_manifest
delta_manifest_used = True
combine_manifests(new_manifest, delta_manifest)
else:
self.log.debug(f'No Delta manifest received from CDN.')
@ -794,8 +801,7 @@ class LegendaryCore:
file_prefix_filter=file_prefix_filter,
file_exclude_filter=file_exclude_filter,
file_install_tag=file_install_tag,
processing_optimization=process_opt,
delta_manifest_used=delta_manifest_used)
processing_optimization=process_opt)
prereq = None
if new_manifest.meta.prereq_ids: