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freebsd/copy-builtin
illiliti 36e8abee95
copy-builtin: posix conformance
This commits contains changes to allow running `copy-builtin` without
bash + some minor improvements.

changed shebang to /bin/sh
added -f option to `set` to globally disable unneeded globbing
replaced all `echo` commands within add_after() with `printf`
alternative to avoid possible issues with options (-neE)
dropped non-portable superfluous `readlink` command
replaced superfluous `true` command with `:` builtin alternative
replaced non-portable `--recursive` option of `cp` command with `-R`
alternative
dropped non-portable `local` keyword

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: illiliti <illiliti@protonmail.com>
Closes #12004
2021-05-08 08:58:26 -07:00

75 lines
1.5 KiB
Bash
Executable File

#!/bin/sh
set -ef
usage()
{
echo "usage: $0 <kernel source tree>" >&2
exit 1
}
[ "$#" -eq 1 ] || usage
KERNEL_DIR="$1"
if ! [ -e 'zfs_config.h' ]
then
echo "$0: you did not run configure, or you're not in the ZFS source directory."
echo "$0: run configure with --with-linux=$KERNEL_DIR and --enable-linux-builtin."
exit 1
fi >&2
make clean ||:
make gitrev
rm -rf "$KERNEL_DIR/include/zfs" "$KERNEL_DIR/fs/zfs"
cp -R include "$KERNEL_DIR/include/zfs"
cp -R module "$KERNEL_DIR/fs/zfs"
cp zfs_config.h "$KERNEL_DIR/include/zfs/"
cat > "$KERNEL_DIR/fs/zfs/Kconfig" <<EOF
config ZFS
tristate "ZFS filesystem support"
depends on EFI_PARTITION
select ZLIB_INFLATE
select ZLIB_DEFLATE
help
This is the ZFS filesystem from the OpenZFS project.
See https://github.com/openzfs/zfs
To compile this file system support as a module, choose M here.
If unsure, say N.
EOF
add_after()
{
FILE="$1"
MARKER="$2"
NEW="$3"
while IFS='' read -r LINE
do
printf "%s\n" "$LINE"
if [ -n "$MARKER" ] && [ "$LINE" = "$MARKER" ]
then
printf "%s\n" "$NEW"
MARKER=''
if IFS='' read -r LINE
then
[ "$LINE" != "$NEW" ] && printf "%s\n" "$LINE"
fi
fi
done < "$FILE" > "$FILE.new"
mv "$FILE.new" "$FILE"
}
add_after "$KERNEL_DIR/fs/Kconfig" 'if BLOCK' 'source "fs/zfs/Kconfig"'
add_after "$KERNEL_DIR/fs/Makefile" 'endif' 'obj-$(CONFIG_ZFS) += zfs/'
echo "$0: done. now you can build the kernel with ZFS support." >&2
echo "$0: make sure you enable ZFS support (CONFIG_ZFS) before building." >&2