Stages TWRP's GUI engine and standalone tooling as PawletOS-owned modules instead of a bootable/recovery fork, per the plugin-architecture finding in NOTES-ota-recovery-ab.md: stock recovery_main.cpp already dlopen()s librecovery_ui_ext.so and dlsym()s make_device() from it at runtime, so the UI layer doesn't require touching stock bootable/recovery at all. Confirmed via source grep that recovery.cpp/install.cpp have zero references into the partition manager/backup engine/GUI code and vice versa. recovery_ui/: TWRP's gui/, minuitwrp/, libpixelflinger/ (copied verbatim, GPL-3.0), plus a new device/ providing PawletTwrpUI (a ScreenRecoveryUI subclass) and make_device() — written from scratch against stock's RecoveryUI/ScreenRecoveryUI virtual-method contract, since TWRP's own fork never ships a make_device() (every real TWRP device provides its own, and no reference device tree was available to copy from). Top-level Android.bp defines librecovery_ui_pawlet_twrp, the module TARGET_RECOVERY_UI_LIB should point at. gui/Android.bp and minuitwrp/Android.bp had their include_dirs rewritten for the new paths. recovery_toolkit/: partition manager, backup engine (tar/digest/adbbu/apex), filesystem/format support (exfat/dosfstools/gpt/fuse/mtp/crypto), scripting (openrecoveryscript/orscmd/twrpinstall), shared helpers. Source only, no Android.bp yet for any of it. Known gap blocking recovery_ui from actually linking: gui/'s libguitwrp depends on libaosprecovery, built from recovery_toolkit/helpers/twrp.cpp via a Go Soong plugin (libaosprecovery_defaults.go) not yet ported. Neither repo has been build-tested — no local AOSP build environment available in this workspace. See each directory's README.md for a precise done/not-done breakdown.
recovery_toolkit
TWRP's partition manager, backup engine, filesystem/format support, and
scripting/automation tooling — the "standalone additive" bucket from the
TWRP-vs-stock-recovery diff (confirmed via source grep: zero references
either direction between this code and recovery.cpp/install/install.cpp,
so none of it requires forking stock bootable/recovery). See the main
workspace's NOTES-ota-recovery-ab.md for the full investigation.
Source copied verbatim from TeamWin's android_bootable_recovery
(android-14.1), the only living copy found (Google removed the equivalent
functionality's siblings — applypatch/updater/edify — from stock AOSP
in 2024; see external_update_binary).
Status: source staged, no build files yet
This is source-only. None of these directories have an Android.bp yet.
That's real remaining work, not cleanup — each of these historically had its
module definition scattered inside TWRP's single top-level
bootable/recovery/Android.bp, not self-contained per-directory the way
applypatch/updater/edify were, so each needs a new Android.bp
written from scratch, not just copied and path-fixed.
Layout
partitionmanager/—partition.cpp,partitionmanager.cpp,partitions.hpp,BasePartition.cpp.backup/—twrpTar.*,tarWrite.*,twrpDigestDriver.*,twrpAdbBuFifo.*,twrpApex.*,infomanager.*, pluslibtar/,twrpDigest/,adbbu/,twrpTarMain/(each of those four already has its own directory structure from upstream, not yet inspected for existing build files).- Filesystem/format support:
exfat/,dosfstools/,libblkid/,simg2img/,minzip/,openaes/,gpt/,fuse/(+fuse.h),mtp/,crypto/. scripting/(openrecoveryscript.*) +orscmd/+twrpinstall/— TWRP's scripting/automation interface.twrpinstall/is referenced byrecovery_ui/gui/Android.bp'sinclude_dirsalready (this module needs to exist beforerecovery_uican build).helpers/— shared utilities (find_file.*,exclude.*,fixContexts.*,mounts.c,startupArgs.*,progresstracking.*,kernel_module_loader.*,abx-functions.hpp,twrp-functions.*,twrp.cpp), pluslibcrecovery/,libmincrypt/,attr/.
Known gap shared with recovery_ui
helpers/twrp.cpp needs to build into libaosprecovery — TWRP builds this
via a custom Go Soong plugin (libaosprecovery_defaults.go, not yet
copied/ported) that recovery_ui/gui's libguitwrp depends on as a
shared_libs entry. recovery_ui won't link until this exists.
Priority if picking up this work
twrpinstall/ and helpers/ (for libaosprecovery) block recovery_ui
from building at all — do those first. partitionmanager/ and backup/
are the actual user-facing value (what makes this "TWRP" rather than just a
GUI skin) and are next. Filesystem/format support modules
(exfat/dosfstools/etc.) can come last — they're each independent and
only needed for the specific formats they support.
License
GPL-3.0 (TeamWin) — same situation as recovery_ui, full license text not
yet added to this repo.