Initial project import

tools/fv/fv

@@ -0,0 +1,44 @@
+#!/bin/sh
+# tools/fv/fv - Flying V build wrapper.
+# The public Agila source now uses the .fv extension, but the underlying V
+# compiler only accepts .v files. This wrapper stages temporary .v copies of
+# every .fv file in the project, invokes tools/v/v, and then removes the copies.
+set -eu
+
+ROOT=$(CDPATH= cd -- "$(dirname -- "$0")/../.." && pwd)
+V_CMD="./tools/v/v"
+
+stage_all_fv() {
+	# Copy every .fv source to a sibling .v, except inside the V compiler tree.
+	find "$ROOT" -name '*.fv' -not -path '*/tools/v/*' -print0 \
+		| while IFS= read -r -d '' fv; do
+			cp "$fv" "${fv%.fv}.v"
+		done
+}
+
+cleanup() {
+	# Remove any temporary .v files we created, but never touch the V compiler.
+	find "$ROOT" -name '*.v' -not -path '*/tools/v/*' -delete
+}
+
+trap cleanup EXIT INT TERM
+
+stage_all_fv
+
+# Rewrite arguments from .fv to .v and make them relative to ROOT so the V
+# compiler does not have to deal with the space in the parent directory name.
+new_args=""
+for arg in "$@"; do
+	rel="$arg"
+	case "$arg" in
+		"$ROOT"/*) rel="${arg#$ROOT/}" ;;
+		"$ROOT")   rel="." ;;
+	esac
+	case "$rel" in
+		*.fv) new_args="$new_args ${rel%.fv}.v" ;;
+		*)    new_args="$new_args $rel" ;;
+	esac
+done
+
+cd "$ROOT"
+"$V_CMD" $new_args