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https://github.com/LadybirdBrowser/ladybird.git
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f2ccb702e8
Previously we'd fail to execute the resize2fs tool which then results in us recreating the image from scratch: resizing disk image... Image resized. line 132: /usr/sbin/resize2fs: No such file or directory failed, not using existing image done
225 lines
7 KiB
Bash
Executable file
225 lines
7 KiB
Bash
Executable file
#!/bin/sh
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# Note: This is done before `set -e` to let `command` fail if needed
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FUSE2FS_PATH=$(command -v fuse2fs)
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RESIZE2FS_PATH=$(command -v resize2fs)
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if [ -z "$FUSE2FS_PATH" ]; then
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FUSE2FS_PATH=/usr/sbin/fuse2fs
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fi
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if [ -z "$RESIZE2FS_PATH" ]; then
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RESIZE2FS_PATH=/usr/sbin/resize2fs
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fi
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set -e
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SCRIPT_DIR="$(dirname "${0}")"
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. "${SCRIPT_DIR}/.shell_include.sh"
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USE_FUSE2FS=0
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if [ "$(id -u)" != 0 ]; then
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if [ -x "$FUSE2FS_PATH" ] && $FUSE2FS_PATH --help 2>&1 |grep fakeroot > /dev/null; then
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USE_FUSE2FS=1
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else
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set +e
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${SUDO} -E -- sh -c "\"$0\" $* || exit 42"
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case $? in
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1)
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die "this script needs to run as root"
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;;
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42)
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exit 1
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;;
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*)
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exit 0
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;;
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esac
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fi
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else
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: "${SUDO_UID:=0}" "${SUDO_GID:=0}"
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fi
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if [ "$(uname -s)" = "Darwin" ]; then
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export PATH="/usr/local/opt/e2fsprogs/bin:$PATH"
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export PATH="/usr/local/opt/e2fsprogs/sbin:$PATH"
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export PATH="/opt/homebrew/opt/e2fsprogs/bin:$PATH"
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export PATH="/opt/homebrew/opt/e2fsprogs/sbin:$PATH"
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E2FSCK="e2fsck"
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RESIZE2FS_PATH="resize2fs"
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elif [ "$(uname -s)" = "SerenityOS" ]; then
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E2FSCK="/usr/local/sbin/e2fsck"
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else
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E2FSCK="/usr/sbin/e2fsck"
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if [ ! -f "$E2FSCK" ]; then
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E2FSCK=/sbin/e2fsck
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fi
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fi
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# Prepend the toolchain qemu directory so we pick up QEMU from there
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PATH="$SCRIPT_DIR/../Toolchain/Local/qemu/bin:$PATH"
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# Also prepend the i686 toolchain directory because that's where most
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# people will have their QEMU binaries if they built them before the
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# directory was changed to Toolchain/Local/qemu.
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PATH="$SCRIPT_DIR/../Toolchain/Local/i686/bin:$PATH"
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# We depend on GNU coreutils du for the --apparent-size extension.
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# GNU coreutils is a build dependency.
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if command -v gdu > /dev/null 2>&1 && gdu --version | grep -q "GNU coreutils"; then
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GNUDU="gdu"
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else
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GNUDU="du"
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fi
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disk_usage() {
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# shellcheck disable=SC2003,SC2307
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expr "$(${GNUDU} -sk --apparent-size "$1" | cut -f1)"
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}
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inode_usage() {
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find "$1" | wc -l
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}
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INODE_SIZE=128
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INODE_COUNT=$(($(inode_usage "$SERENITY_SOURCE_DIR/Base") + $(inode_usage Root)))
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INODE_COUNT=$((INODE_COUNT + 2000)) # Some additional inodes for toolchain files, could probably also be calculated
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DISK_SIZE_BYTES=$((($(disk_usage "$SERENITY_SOURCE_DIR/Base") + $(disk_usage Root)) * 1024))
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DISK_SIZE_BYTES=$((DISK_SIZE_BYTES + (INODE_COUNT * INODE_SIZE)))
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if [ -z "$SERENITY_DISK_SIZE_BYTES" ]; then
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# Try to use heuristics to guess a good disk size and inode count.
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# The disk must notably fit:
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# * Data blocks (for both files and directories),
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# * Indirect/doubly indirect/triply indirect blocks,
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# * Inodes and block bitmaps for each block group,
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# * Plenty of extra free space and free inodes.
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DISK_SIZE_BYTES=$((DISK_SIZE_BYTES * 2))
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INODE_COUNT=$((INODE_COUNT * 7))
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else
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if [ "$DISK_SIZE_BYTES" -gt "$SERENITY_DISK_SIZE_BYTES" ]; then
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die "SERENITY_DISK_SIZE_BYTES is set to $SERENITY_DISK_SIZE_BYTES but required disk size is $DISK_SIZE_BYTES bytes"
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fi
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DISK_SIZE_BYTES="$SERENITY_DISK_SIZE_BYTES"
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fi
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USE_EXISTING=0
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if [ -f _disk_image ]; then
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USE_EXISTING=1
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echo "checking existing image"
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result=0
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"$E2FSCK" -f -y _disk_image || result=$?
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if [ $result -ge 4 ]; then
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rm -f _disk_image
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USE_EXISTING=0
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echo "failed, not using existing image"
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else
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echo "done"
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fi
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fi
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if [ $USE_EXISTING -eq 1 ]; then
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OLD_DISK_SIZE_BYTES=$(wc -c < _disk_image)
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if [ "$DISK_SIZE_BYTES" -gt "$OLD_DISK_SIZE_BYTES" ]; then
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echo "resizing disk image..."
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qemu-img resize -f raw _disk_image "$DISK_SIZE_BYTES" || die "could not resize disk image"
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if ! "$RESIZE2FS_PATH" _disk_image; then
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rm -f _disk_image
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USE_EXISTING=0
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echo "failed, not using existing image"
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fi
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echo "done"
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fi
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fi
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if [ $USE_EXISTING -ne 1 ]; then
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printf "setting up disk image... "
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qemu-img create -q -f raw _disk_image "$DISK_SIZE_BYTES" || die "could not create disk image"
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chown "$SUDO_UID":"$SUDO_GID" _disk_image || die "could not adjust permissions on disk image"
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echo "done"
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printf "creating new filesystem... "
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if [ "$(uname -s)" = "OpenBSD" ]; then
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VND=$(vnconfig _disk_image)
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(echo "e 0"; echo 83; echo n; echo 0; echo "*"; echo "quit") | fdisk -e "$VND"
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newfs_ext2fs -D $INODE_SIZE -n $INODE_COUNT "/dev/r${VND}i" || die "could not create filesystem"
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else
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if [ -x /sbin/mke2fs ]; then
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/sbin/mke2fs -q -I $INODE_SIZE -N $INODE_COUNT _disk_image || die "could not create filesystem"
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else
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mke2fs -q -I $INODE_SIZE -N $INODE_COUNT _disk_image || die "could not create filesystem"
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fi
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fi
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echo "done"
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fi
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printf "mounting filesystem... "
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mkdir -p mnt
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use_genext2fs=0
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if [ $USE_FUSE2FS -eq 1 ]; then
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mount_cmd="$FUSE2FS_PATH _disk_image mnt/ -o fakeroot,rw"
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elif [ "$(uname -s)" = "Darwin" ]; then
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mount_cmd="fuse-ext2 _disk_image mnt -o rw+,allow_other,uid=501,gid=20"
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elif [ "$(uname -s)" = "OpenBSD" ]; then
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VND=$(vnconfig _disk_image)
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mount_cmd="mount -t ext2fs "/dev/${VND}i" mnt/"
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elif [ "$(uname -s)" = "FreeBSD" ]; then
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MD=$(mdconfig _disk_image)
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mount_cmd="fuse-ext2 -o rw+,direct_io "/dev/${MD}" mnt/"
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else
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mount_cmd="mount _disk_image mnt/"
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fi
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if ! eval "$mount_cmd"; then
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if command -v genext2fs 1>/dev/null ; then
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echo "mount failed but genext2fs exists, use it instead"
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use_genext2fs=1
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else
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die "could not mount filesystem and genext2fs is missing"
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fi
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else
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echo "done"
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fi
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cleanup() {
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if [ -d mnt ]; then
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if [ $use_genext2fs = 0 ] ; then
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printf "unmounting filesystem... "
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if [ $USE_FUSE2FS -eq 1 ]; then
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fusermount -u mnt || (sleep 1 && sync && fusermount -u mnt)
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else
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umount mnt || ( sleep 1 && sync && umount mnt )
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fi
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rmdir mnt
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else
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rm -rf mnt
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fi
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if [ "$(uname -s)" = "OpenBSD" ]; then
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vnconfig -u "$VND"
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elif [ "$(uname -s)" = "FreeBSD" ]; then
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mdconfig -d -u "$MD"
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fi
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echo "done"
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fi
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}
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trap cleanup EXIT
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script_path=$(cd -P -- "$(dirname -- "$0")" && pwd -P)
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"$script_path/build-root-filesystem.sh"
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if [ $use_genext2fs = 1 ]; then
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# regenerate new image, since genext2fs is unable to reuse the previously written image.
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# genext2fs is very slow in generating big images, so I use a smaller image here. size can be updated
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# if it's not enough.
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# not using "-I $INODE_SIZE" since it hangs. Serenity handles whatever default this uses instead.
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genext2fs -B 4096 -b $((DISK_SIZE_BYTES / 4096)) -N $INODE_COUNT -d mnt _disk_image || die "try increasing image size (genext2fs -b)"
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# if using docker with shared mount, file is created as root, so make it writable for users
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chmod 0666 _disk_image
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fi
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