95 lines
2.2 KiB
Bash
Executable file
95 lines
2.2 KiB
Bash
Executable file
#!/usr/bin/env nix-shell
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#!nix-shell -i bash -p bash coreutils gnutar
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# Generate a sources.nix for a version of GNU mes. Creates lists of source files
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# from build-aux/configure-lib.sh.
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#
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# You may point this tool at a manually downloaded tarball, but more ideal is
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# using the source tarball from Nixpkgs. For example:
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#
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# MES_TARBALL="$(nix-build --no-link -A minimal-bootstrap.mes.src ../../../../..)"
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# ./gen-sources.sh "$MES_TARBALL" > ./new-sources.nix
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set -eu
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# Supported platforms
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ARCHS="x86"
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KERNELS="linux"
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COMPILERS="mescc gcc"
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format() {
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echo -n "[ "
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# Terrible hack to convert a newline-delimited string to space-delimited
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echo $* | xargs printf '"%s" '
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echo -n "]"
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}
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gen_sources() {
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# Configuration variables used by configure-lib.sh
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export mes_libc=mes
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export mes_cpu=$1
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export mes_kernel=$2
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export compiler=$3
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# Populate source file lists
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source $CONFIGURE_LIB_SH
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cat <<EOF
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$mes_cpu.$mes_kernel.$compiler = {
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libc_mini_SOURCES = $(format $libc_mini_SOURCES);
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libmescc_SOURCES = $(format $libmescc_SOURCES);
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libtcc1_SOURCES = $(format $libtcc1_SOURCES);
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libc_SOURCES = $(format $libc_SOURCES);
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libc_tcc_SOURCES = $(format $libc_tcc_SOURCES);
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libc_gnu_SOURCES = $(format $libc_gnu_SOURCES);
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mes_SOURCES = $(format $mes_SOURCES);
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};
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EOF
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}
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MES_TARBALL=$1
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if [ ! -f $MES_TARBALL ]; then
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echo "Provide path to mes-x.x.x.tar.gz as first argument" >&2
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exit 1
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fi
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echo "Generating sources.nix from $MES_TARBALL" >&2
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TMP=$(mktemp -d)
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cd $TMP
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echo "Workdir: $TMP" >&2
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echo "Extracting $MES_TARBALL" >&2
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tar --strip-components 1 -xf $MES_TARBALL
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CONFIGURE_LIB_SH="$TMP/build-aux/configure-lib.sh"
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if [ ! -f $CONFIGURE_LIB_SH ]; then
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echo "Could not find mes's configure-lib.sh script at $CONFIGURE_LIB_SH" >&2
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exit 1
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fi
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# Create dummy config expected by configure-lib.sh
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touch config.sh
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chmod +x config.sh
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echo "Configuring with $CONFIGURE_LIB_SH" >&2
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cat <<EOF
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# This file is generated by ./gen-sources.sh.
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# Do not edit!
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{
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EOF
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for arch in $ARCHS; do
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for kernel in $KERNELS; do
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for compiler in $COMPILERS; do
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gen_sources $arch $kernel $compiler
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done
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done
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done
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cat <<EOF
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}
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EOF
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