A127f: U7 Auto Patch

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if [ $? -ne 0 ]; then log "Patch download failed – aborting." rm -rf "$TMP_DIR" exit 1 fi a127f u7 auto patch

# 1. Get current build id (e.g., "U7-20230915") CURRENT_BUILD=$(getprop ro.build.display.id 2>/dev/null) if [ -z "$CURRENT_BUILD" ]; then log "Cannot read current build id – aborting." exit 1 fi log "Current firmware: $CURRENT_BUILD" Provide a --rollback flag that restores it via TWRP

# 5. Compare versions if [ "$REMOTE_PATCH_VERSION" -le "$SAVED_PATCH_VERSION" ]; then log "Device already at latest patch level – nothing to do." exit 0 fi then log "Checksum mismatch! Expected $PATCH_SHA256

adb shell "su -c '/data/local/tmp/auto-patch.sh'" Watch the logcat output: adb logcat -s AutoPatch . | Feature | Where to edit | Example | |---------|---------------|---------| | Multiple patch streams (e.g., carrier‑specific) | Add a variant field to the manifest and let the script read ro.carrier or a user‑provided env var. | "variant": "AT&T" | | Rollback capability | Store the previous patch_version and keep a copy of the last ZIP in /data/local/tmp/patch_backups/ . Provide a --rollback flag that restores it via TWRP. | if [ "$1" = "--rollback" ]; then … | | Battery‑level guard | Before downloading, check dumpsys battery | grep level . Abort if < 30 %. | BAT=$(dumpsys battery | awk '/level/ print $2') |

# 8. Verify SHA‑256 log "Verifying integrity …" CALC_SHA=$(sha256sum "$PATCH_FILE" | awk 'print $1') if [ "$CALC_SHA" != "$PATCH_SHA256" ]; then log "Checksum mismatch! Expected $PATCH_SHA256, got $CALC_SHA" rm -rf "$TMP_DIR" exit 1 fi log "Checksum OK."

# 10. Record success (this line runs only for the TWRP‑case *after* the device # comes back online; for fastboot it runs immediately after flashing) log "Patch $REMOTE_PATCH_VERSION applied successfully – persisting state." cat > "$STATE_FILE" <<EOF