FDS/OS 1.0

tools/cargo-build

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+# Preserve normal Cargo target/linker flags and normalize embedded source paths.
+source "$(dirname -- "${BASH_SOURCE[0]}")/lib.sh"
+cd "$FDS_ROOT"
+fds_cargo_home=${CARGO_HOME:-$HOME/.cargo}
+fds_rustup_home=${RUSTUP_HOME:-$HOME/.rustup}
+mappings=("$FDS_ROOT=/usr/src/fds" "$fds_rustup_home=/usr/src/fds/rustup")
+for registry in "$fds_cargo_home"/registry/src/*; do
+    [[ -d $registry ]] || continue
+    mappings+=("$registry=/usr/src/fds/crates")
+done
+flags=
+for mapping in "${mappings[@]}"; do
+    # This creates TOML data passed as one argument, not executable shell text.
+    escaped=${mapping//\\/\\\\}
+    escaped=${escaped//\"/\\\"}
+    flags+="\"--remap-path-prefix=$escaped\","
+done
+# Cargo merges these arrays with the configured target flags, including static
+# CRT and self-contained linking. The flags participate in Cargo's cache key.
+exec cargo \
+    --config "target.aarch64-unknown-linux-musl.rustflags=[$flags]" \
+    --config "target.x86_64-unknown-linux-gnu.rustflags=[$flags]" \
+    build "$@"