97 lines
5 KiB
Python
97 lines
5 KiB
Python
# SPDX-License-Identifier: MPL-2.0
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"""Shared Gaia payload used by full builds and private UI-only RAM updates."""
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import io
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import importlib.util
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import lzma
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from pathlib import Path
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import stat
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import tarfile
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from tundra import ROOT, digest
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def differential_payload(payload, system_root):
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"""Keep only files not already identical in the immutable system image."""
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root = Path(system_root).resolve()
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output = io.BytesIO()
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omitted = 0
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with tarfile.open(fileobj=io.BytesIO(payload)) as source, tarfile.open(fileobj=output, mode='w') as target:
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for item in source:
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path = root / item.name
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if item.name.startswith('/') or '..' in Path(item.name).parts:
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raise ValueError('Unsafe shared UI path: ' + item.name)
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same = False
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data = source.extractfile(item).read() if item.isfile() else None
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if path.parent.resolve().is_relative_to(root):
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if item.isfile() and path.is_file() and not path.is_symlink():
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same = path.read_bytes() == data and stat.S_IMODE(path.stat().st_mode) == item.mode
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elif item.issym() and path.is_symlink():
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same = str(path.readlink()) == item.linkname
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if same:
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omitted += 1
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else:
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target.addfile(item, io.BytesIO(data) if data is not None else None)
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return compress_archive(output.getvalue()), omitted
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def compress_archive(payload):
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"""Keep the language dictionaries within Sargo's 64 MiB boot partition.
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The ramdisk uses BusyBox tar -xJf; the outer cpio remains gzip for the kernel.
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"""
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return lzma.compress(payload, preset=9)
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def selected_files():
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spec = importlib.util.spec_from_file_location('vulpes_project', ROOT.parent/'tools/project.py')
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project = importlib.util.module_from_spec(spec)
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spec.loader.exec_module(project)
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sources = [ROOT.parent/'gaia/apps'/app/name
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for app, names in project.SOURCE_OVERRIDES.items() for name in names]
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return [*sources,*sorted((ROOT.parent/'host').rglob('*')),
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*sorted((ROOT.parent/'services').rglob('*.mjs')),
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*sorted((ROOT/'mms-codec').glob('*')),
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*sorted((ROOT.parent/'assets/webapps/marketplace.gaiamobile.org').rglob('*')),
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ROOT.parent/'tools/installed_apps.py',
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*sorted((ROOT.parent/'gaia/shared/elements/vulpes-fonts').rglob('*')),
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*sorted((ROOT.parent/'overrides').rglob('*')),
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ROOT.parent/'assets/webapps/communications.gaiamobile.org/contacts/js/views/form.js',
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ROOT.parent/'assets/webapps/communications.gaiamobile.org/contacts/js/contacts.js',
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ROOT.parent/'assets/webapps/communications.gaiamobile.org/contacts/js/activities.js',
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ROOT.parent/'assets/webapps/communications.gaiamobile.org/dialer/js/call_log.js',
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ROOT.parent/'assets/webapps/communications.gaiamobile.org/dialer/gaia_build_defer_index.js',
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ROOT.parent/'assets/webapps/search.gaiamobile.org/manifest.webapp',
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ROOT.parent/'assets/webapps/homescreen.gaiamobile.org/gaia_build_defer_index.js',
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ROOT.parent/'assets/webapps/settings.gaiamobile.org/js/panels/app_permissions_list/panel.js',
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ROOT.parent/'assets/webapps/settings.gaiamobile.org/js/panels/screen_lock_passcode/panel.js',
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ROOT.parent/'assets/webapps/verticalhome.gaiamobile.org/gaia_build_defer_index.js',
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ROOT.parent/'assets/webapps/wallpaper.gaiamobile.org/style/wallpaper.css',
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ROOT.parent/'assets/webapps/ringtones.gaiamobile.org/gaia_build_defer_pick.js',
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ROOT.parent/'assets/webapps/ringtones.gaiamobile.org/gaia_build_defer_manage.js',
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ROOT.parent/'assets/webapps/ringtones.gaiamobile.org/js/tone_player.js',
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ROOT.parent/'tools/project.py',
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ROOT.parent/'tools/serve-gaia.py',
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ROOT.parent/'release.json', ROOT.parent/'tests/ProbeChild.sys.mjs',
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ROOT/'droidian/probe.sys.mjs', ROOT/'droidian/session.py']
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def build_payload():
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buffer = io.BytesIO()
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hashes = {}
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def owned(info):
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info.uid = info.gid = 0
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info.uname = info.gname = 'root'
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info.mtime = 0
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return info
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with tarfile.open(fileobj=buffer, mode='w') as archive:
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for path in selected_files():
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if not path.is_file():
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continue
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relative = str(path.relative_to(ROOT.parent))
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target = 'trial/' + path.name if path in (ROOT/'droidian/probe.sys.mjs', ROOT/'droidian/session.py') else relative
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if path.suffix.lower() == '.md':
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if path.stem.lower() not in ('license', 'copying', 'notice'):
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continue
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target = target[:-3]
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archive.add(path, arcname='opt/vulpes/' + target, filter=owned)
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hashes[relative] = digest(path)
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return compress_archive(buffer.getvalue()), hashes
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