First Version

build.sh

@@ -0,0 +1,47 @@
+#!/usr/bin/env sh
+# Build Skald and install the binary into ./bin.
+#
+#   ./build.sh                     release build  → bin/skald
+#   ./build.sh -d                  debug build    → bin/skald
+#   ./build.sh --features desktop  extra args are forwarded to cargo
+#
+# The binary is staged as bin/skald.new and renamed into place. A plain `cp`
+# over a live binary fails with ETXTBSY on Linux, and rebuilding while run.sh
+# supervises a running instance is the normal workflow: build here, then ask
+# the agent to restart — the supervisor re-executes the new binary.
+
+set -eu
+
+cd "$(dirname "$0")"
+
+BIN_NAME="skald"
+OUT_DIR="bin"
+
+PROFILE="release"
+if [ "${1:-}" = "-d" ]; then
+    PROFILE="debug"
+    shift
+fi
+
+# Warnings are noise in a tight build/restart loop; errors still fail the build.
+RUSTFLAGS="-A warnings"
+export RUSTFLAGS
+
+if [ "$PROFILE" = "release" ]; then
+    cargo build --release "$@"
+else
+    cargo build "$@"
+fi
+
+SRC="target/$PROFILE/$BIN_NAME"
+if [ ! -f "$SRC" ]; then
+    echo "[build.sh] Expected binary not found at $SRC" >&2
+    exit 1
+fi
+
+mkdir -p "$OUT_DIR"
+cp "$SRC" "$OUT_DIR/$BIN_NAME.new"
+chmod 755 "$OUT_DIR/$BIN_NAME.new"
+mv -f "$OUT_DIR/$BIN_NAME.new" "$OUT_DIR/$BIN_NAME"
+
+echo "[build.sh] $PROFILE build installed → $OUT_DIR/$BIN_NAME"