#!/bin/bash
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#
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# This utility extracts an SDK image tarball using pseudo, and stores
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# the pseudo database in var/pseudo within the rootfs. If you want to
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# boot QEMU using an nfsroot, you *must* use this script to create the
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# rootfs to ensure it is done correctly with pseudo.
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#
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# Copyright (c) 2010 Intel Corp.
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#
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# SPDX-License-Identifier: GPL-2.0-only
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#
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function usage() {
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echo "Usage: $0 <image-tarball> <extract-dir>"
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}
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if [ $# -ne 2 ]; then
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usage
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exit 1
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fi
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SYSROOT_SETUP_SCRIPT=`which oe-find-native-sysroot 2> /dev/null`
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if [ -z "$SYSROOT_SETUP_SCRIPT" ]; then
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echo "Error: Unable to find the oe-find-native-sysroot script"
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echo "Did you forget to source your build system environment setup script?"
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exit 1
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fi
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. $SYSROOT_SETUP_SCRIPT meta-ide-support
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PSEUDO_OPTS="-P $OECORE_NATIVE_SYSROOT/usr"
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ROOTFS_TARBALL=$1
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SDK_ROOTFS_DIR=$2
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if [ ! -e "$ROOTFS_TARBALL" ]; then
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echo "Error: sdk tarball '$ROOTFS_TARBALL' does not exist"
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usage
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exit 1
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fi
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# Convert SDK_ROOTFS_DIR to a full pathname
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if [[ ${SDK_ROOTFS_DIR:0:1} != "/" ]]; then
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SDK_ROOTFS_DIR=$(readlink -f $(pwd)/$SDK_ROOTFS_DIR)
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fi
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TAR_OPTS=""
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if [[ "$ROOTFS_TARBALL" =~ tar\.xz$ ]]; then
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TAR_OPTS="--numeric-owner -xJf"
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fi
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if [[ "$ROOTFS_TARBALL" =~ tar\.bz2$ ]]; then
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TAR_OPTS="--numeric-owner -xjf"
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fi
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if [[ "$ROOTFS_TARBALL" =~ tar\.gz$ ]]; then
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TAR_OPTS="--numeric-owner -xzf"
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fi
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if [[ "$ROOTFS_TARBALL" =~ \.tar$ ]]; then
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TAR_OPTS="--numeric-owner -xf"
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fi
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if [ -z "$TAR_OPTS" ]; then
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echo "Error: Unable to determine sdk tarball format"
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echo "Accepted types: .tar / .tar.gz / .tar.bz2 / .tar.xz"
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exit 1
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fi
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if [ ! -d "$SDK_ROOTFS_DIR" ]; then
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echo "Creating directory $SDK_ROOTFS_DIR"
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mkdir -p "$SDK_ROOTFS_DIR"
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fi
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pseudo_state_dir="$SDK_ROOTFS_DIR/../$(basename "$SDK_ROOTFS_DIR").pseudo_state"
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pseudo_state_dir="$(readlink -f $pseudo_state_dir)"
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debug_image="`echo $ROOTFS_TARBALL | grep '\-dbg\.rootfs\.tar'`"
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if [ -e "$pseudo_state_dir" -a -z "$debug_image" ]; then
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echo "Error: $pseudo_state_dir already exists!"
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echo "Please delete the rootfs tree and pseudo directory manually"
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echo "if this is really what you want."
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exit 1
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fi
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mkdir -p "$pseudo_state_dir"
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touch "$pseudo_state_dir/pseudo.pid"
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PSEUDO_LOCALSTATEDIR="$pseudo_state_dir"
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export PSEUDO_LOCALSTATEDIR
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echo "Extracting rootfs tarball using pseudo..."
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echo "$PSEUDO $PSEUDO_OPTS tar -C \"$SDK_ROOTFS_DIR\" $TAR_OPTS \"$ROOTFS_TARBALL\""
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$PSEUDO $PSEUDO_OPTS tar -C "$SDK_ROOTFS_DIR" $TAR_OPTS "$ROOTFS_TARBALL"
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DIRCHECK=`ls -l "$SDK_ROOTFS_DIR" | wc -l`
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if [ "$DIRCHECK" -lt 5 ]; then
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echo "Warning: I don't see many files in $SDK_ROOTFS_DIR"
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echo "Please double-check the extraction worked as intended"
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exit 0
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fi
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echo "SDK image successfully extracted to $SDK_ROOTFS_DIR"
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exit 0
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