1 files changed, 95 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/os-specific/linux/minimal-bootstrap/mes/gen-sources.sh b/nixpkgs/pkgs/os-specific/linux/minimal-bootstrap/mes/gen-sources.sh
new file mode 100755
index 000000000000..3a734129c1f7
--- /dev/null
+++ b/nixpkgs/pkgs/os-specific/linux/minimal-bootstrap/mes/gen-sources.sh
@@ -0,0 +1,95 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p bash coreutils gnutar
+
+# Generate a sources.nix for a version of GNU mes. Creates lists of source files
+# from build-aux/configure-lib.sh.
+#
+# You may point this tool at a manually downloaded tarball, but more ideal is
+# using the source tarball from Nixpkgs. For example:
+#
+# MES_TARBALL="$(nix-build --no-link -A minimal-bootstrap.mes.src ../../../../..)"
+# ./gen-sources.sh "$MES_TARBALL" > ./new-sources.nix
+
+set -eu
+
+# Supported platforms
+ARCHS="x86"
+KERNELS="linux"
+COMPILERS="mescc gcc"
+
+
+format() {
+  echo -n "[ "
+  # Terrible hack to convert a newline-delimited string to space-delimited
+  echo $* | xargs printf '"%s" '
+  echo -n "]"
+}
+
+gen_sources() {
+  # Configuration variables used by configure-lib.sh
+  export mes_libc=mes
+  export mes_cpu=$1
+  export mes_kernel=$2
+  export compiler=$3
+
+  # Populate source file lists
+  source $CONFIGURE_LIB_SH
+
+  cat <<EOF
+  $mes_cpu.$mes_kernel.$compiler = {
+    libc_mini_SOURCES = $(format $libc_mini_SOURCES);
+    libmescc_SOURCES  = $(format $libmescc_SOURCES);
+    libtcc1_SOURCES   = $(format $libtcc1_SOURCES);
+    libc_SOURCES      = $(format $libc_SOURCES);
+    libc_tcc_SOURCES  = $(format $libc_tcc_SOURCES);
+    libc_gnu_SOURCES  = $(format $libc_gnu_SOURCES);
+    mes_SOURCES       = $(format $mes_SOURCES);
+  };
+EOF
+}
+
+
+MES_TARBALL=$1
+if [ ! -f $MES_TARBALL ]; then
+    echo "Provide path to mes-x.x.x.tar.gz as first argument" >&2
+    exit 1
+fi
+echo "Generating sources.nix from $MES_TARBALL" >&2
+
+TMP=$(mktemp -d)
+cd $TMP
+echo "Workdir: $TMP" >&2
+
+echo "Extracting $MES_TARBALL" >&2
+tar --strip-components 1 -xf $MES_TARBALL
+
+CONFIGURE_LIB_SH="$TMP/build-aux/configure-lib.sh"
+if [ ! -f $CONFIGURE_LIB_SH ]; then
+    echo "Could not find mes's configure-lib.sh script at $CONFIGURE_LIB_SH" >&2
+    exit 1
+fi
+
+# Create dummy config expected by configure-lib.sh
+touch config.sh
+chmod +x config.sh
+
+
+echo "Configuring with $CONFIGURE_LIB_SH" >&2
+
+cat <<EOF
+# This file is generated by ./gen-sources.sh.
+# Do not edit!
+{
+EOF
+
+for arch in $ARCHS; do
+  for kernel in $KERNELS; do
+    for compiler in $COMPILERS; do
+      gen_sources $arch $kernel $compiler
+    done
+  done
+done
+
+cat <<EOF
+}
+EOF