feat: added basic script for preprocessing and saving generated files

Author: arteevraina

fypp-gfortran.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+
+set -ex
+
+# Target directory for saving preprocessed project.
+destdir="${DESTDIR:-build}"
+
+# Get fypp preprocessor
+fypp="${FYPP:-$(which fypp)}"
+
+# Number of parallel jobs for preprocessing
+if [ $(uname) = "Darwin" ]; then
+  njob="$(sysctl -n hw.ncpu)"
+else
+  njob="$(nproc)"
+fi
+
+# Create directories for the fpm project.
+mkdir -p "$destdir/preprocessed_files"
+
+# Preprocess all files with .fypp extension in source directory.
+# Save generated files in build directory.
+find src -iname "*.fypp" \
+    -exec basename {} .fypp ';' \
+    | cut -f1 -d. | xargs -P "$njob" -I{} "$fypp" "src/{}.fypp" "$destdir/preprocessed_files/{}.f90" \
+
+args=("$@")
+
+file=$(printf "%s\n" "${args[@]}" | grep -P '^.+\.[fF]90')
+
+exec gfortran "${args[@]}"
+
+