extract-utils: Add pinning support
* In many cases, we would like to keep certain files which do not exactly match what might be extracted from a factory ROM. This becomes extremely annoying over time to manually reconstruct, and it's easy to miss these special cases when updating to a new vendor release. It's also useful to flag additions which aren't found in the upstream release at all. * To solve this, we can now "pin" files to a specific sha1 hash. Simply append the sha1sum of the file to the appropriate line in your bloblist, prepended by a | delimiter. * This works by backing up the current files first, running the extraction, then checking if any pinned files need to be restored. * Also add an exit trap to clean up all of our tempfiles Change-Id: I2010b5175b5701e19a3efb112e8907062ca37d66
This commit is contained in:
Steve Kondik
parent
049d4c52be
commit
48f8df8ddb
@ -16,7 +16,9 @@
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#
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PRODUCT_COPY_FILES_LIST=()
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PRODUCT_COPY_FILES_HASHES=()
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PRODUCT_PACKAGES_LIST=()
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PRODUCT_PACKAGES_HASHES=()
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PACKAGE_LIST=()
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VENDOR_STATE=-1
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VENDOR_RADIO_STATE=-1
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@ -27,6 +29,17 @@ FULLY_DEODEXED=-1
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TMPDIR="/tmp/extractfiles.$$"
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mkdir "$TMPDIR"
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#
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# cleanup
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#
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# kill our tmpfiles with fire on exit
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#
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function cleanup() {
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rm -rf "${TMPDIR:?}"
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}
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trap cleanup EXIT INT TERM ERR
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#
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# setup_vendor
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#
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@ -510,16 +523,31 @@ function parse_file_list() {
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fi
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PRODUCT_PACKAGES_LIST=()
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PRODUCT_PACKAGES_HASHES=()
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PRODUCT_COPY_FILES_LIST=()
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PRODUCT_COPY_FILES_HASHES=()
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while read -r line; do
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if [ -z "$line" ]; then continue; fi
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# If the line has a pipe delimiter, a sha1 hash should follow.
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# This indicates the file should be pinned and not overwritten
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# when extracting files.
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local SPLIT=(${line//\|/ })
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local COUNT=${#SPLIT[@]}
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local SPEC=${SPLIT[0]}
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local HASH="x"
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if [ "$COUNT" -gt "1" ]; then
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HASH=${SPLIT[1]}
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fi
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# if line starts with a dash, it needs to be packaged
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if [[ "$line" =~ ^- ]]; then
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PRODUCT_PACKAGES_LIST+=("${line#-}")
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if [[ "$SPEC" =~ ^- ]]; then
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PRODUCT_PACKAGES_LIST+=("${SPEC#-}")
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PRODUCT_PACKAGES_HASHES+=("$HASH")
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else
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PRODUCT_COPY_FILES_LIST+=("$line")
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PRODUCT_COPY_FILES_LIST+=("$SPEC")
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PRODUCT_COPY_FILES_HASHES+=("$HASH")
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fi
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done < <(egrep -v '(^#|^[[:space:]]*$)' "$1" | sort | uniq)
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@ -621,6 +649,10 @@ function oat2dex() {
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FULLY_DEODEXED=1 && return 0 # system is fully deodexed, return
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fi
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if [ ! -f "$CM_TARGET" ]; then
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return;
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fi
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if grep "classes.dex" "$CM_TARGET" >/dev/null; then
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return 0 # target apk|jar is already odexed, return
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fi
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@ -708,16 +740,21 @@ function extract() {
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set +e
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local FILELIST=( ${PRODUCT_COPY_FILES_LIST[@]} ${PRODUCT_PACKAGES_LIST[@]} )
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local HASHLIST=( ${PRODUCT_COPY_FILES_HASHES[@]} ${PRODUCT_PACKAGES_HASHES[@]} )
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local COUNT=${#FILELIST[@]}
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local SRC="$2"
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local OUTPUT_ROOT="$CM_ROOT"/"$OUTDIR"/proprietary
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local OUTPUT_TMP="$TMPDIR"/"$OUTDIR"/proprietary
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if [ "$SRC" = "adb" ]; then
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init_adb_connection
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fi
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if [ "$VENDOR_STATE" -eq "0" ]; then
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echo "Cleaning output directory ($OUTPUT_ROOT).."
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rm -rf "${OUTPUT_ROOT:?}/"*
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rm -rf "${OUTPUT_TMP:?}"
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mkdir -p "${OUTPUT_TMP:?}"
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mv "${OUTPUT_ROOT:?}/"* "${OUTPUT_TMP:?}/"
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VENDOR_STATE=1
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fi
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@ -730,11 +767,13 @@ function extract() {
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local SPLIT=(${FILELIST[$i-1]//:/ })
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local FILE="${SPLIT[0]#-}"
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local OUTPUT_DIR="$OUTPUT_ROOT"
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local TMP_DIR="$OUTPUT_TMP"
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local TARGET=
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if [ "$ARGS" = "rootfs" ]; then
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TARGET="$FROM"
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OUTPUT_DIR="$OUTPUT_DIR/rootfs"
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TMP_DIR="$TMP_DIR/rootfs"
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else
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TARGET="system/$FROM"
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FILE="system/$FILE"
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@ -761,10 +800,13 @@ function extract() {
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fi
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else
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# Try OEM target first
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if [ -f "$SRC/$FILE" ]; then
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cp "$SRC/$FILE" "$DEST"
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# if file does not exist try CM target
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if [ "$?" != "0" ]; then
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elif [ -f "$SRC/$TARGET" ]; then
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cp "$SRC/$TARGET" "$DEST"
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else
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printf ' !! file not found in source\n'
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fi
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fi
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@ -782,12 +824,39 @@ function extract() {
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fi
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fi
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# Check pinned files
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local HASH="${HASHLIST[$i-1]}"
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if [ ! -z "$HASH" ] && [ "$HASH" != "x" ]; then
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local KEEP=""
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local TMP="$TMP_DIR/$FROM"
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if [ -f "$TMP" ]; then
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if [ ! -f "$DEST" ]; then
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KEEP="1"
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else
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local DEST_HASH=$(sha1sum "$DEST" | awk '{print $1}' )
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if [ "$DEST_HASH" != "$HASH" ]; then
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KEEP="1"
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fi
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fi
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if [ "$KEEP" = "1" ]; then
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local TMP_HASH=$(sha1sum "$TMP" | awk '{print $1}' )
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if [ "$TMP_HASH" = "$HASH" ]; then
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printf ' + (keeping pinned file with hash %s)\n' "$HASH"
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cp -p "$TMP" "$DEST"
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fi
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fi
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fi
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fi
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if [ -f "$DEST" ]; then
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local TYPE="${DIR##*/}"
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if [ "$TYPE" = "bin" -o "$TYPE" = "sbin" ]; then
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chmod 755 "$DEST"
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else
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chmod 644 "$DEST"
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fi
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fi
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done
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# Don't allow failing
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