test(build): cover build script feature flags (#2837)

.config/make/tests.mak

@@ -2,8 +2,13 @@
 
 TEST_THREADS ?= 1
 
+.PHONY: script-tests
+script-tests: ## Run shell script tests
+	@echo "Running script tests..."
+	./scripts/test_build_rustfs_options.sh
+
 .PHONY: test
-test: core-deps test-deps ## Run all tests
+test: core-deps test-deps script-tests ## Run all tests
 	@echo "🧪 Running tests..."
 	@if command -v cargo-nextest >/dev/null 2>&1; then \
 		cargo nextest run --all --exclude e2e_test; \

scripts/test_build_rustfs_options.sh

@@ -0,0 +1,103 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
+TMP_DIR=$(mktemp -d)
+trap 'rm -rf "$TMP_DIR"' EXIT
+
+BIN_DIR="$TMP_DIR/bin"
+PROJECT_DIR="$TMP_DIR/project"
+mkdir -p "$BIN_DIR" "$PROJECT_DIR/rustfs"
+
+cp "$ROOT_DIR/build-rustfs.sh" "$PROJECT_DIR/build-rustfs.sh"
+touch "$PROJECT_DIR/Cargo.toml" "$PROJECT_DIR/rustfs/build.rs"
+chmod +x "$PROJECT_DIR/build-rustfs.sh"
+
+cat >"$BIN_DIR/rustup" <<'STUB'
+#!/usr/bin/env bash
+exit 0
+STUB
+
+cat >"$BIN_DIR/git" <<'STUB'
+#!/usr/bin/env bash
+case "$1" in
+  describe)
+    echo "v-test"
+    ;;
+  rev-parse)
+    echo "deadbee"
+    ;;
+  *)
+    exit 0
+    ;;
+esac
+STUB
+
+cat >"$BIN_DIR/cargo" <<'STUB'
+#!/usr/bin/env bash
+set -euo pipefail
+
+printf '%s\n' "$*" >>"${CARGO_LOG:?}"
+
+target=""
+profile="debug"
+prev=""
+for arg in "$@"; do
+  if [[ "$prev" == "--target" ]]; then
+    target="$arg"
+  fi
+  if [[ "$arg" == "--release" ]]; then
+    profile="release"
+  fi
+  prev="$arg"
+done
+
+if [[ -n "$target" ]]; then
+  mkdir -p "target/$target/$profile"
+  printf '#!/usr/bin/env bash\nexit 0\n' >"target/$target/$profile/rustfs"
+  chmod +x "target/$target/$profile/rustfs"
+fi
+STUB
+
+chmod +x "$BIN_DIR/rustup" "$BIN_DIR/git" "$BIN_DIR/cargo"
+
+run_log="$TMP_DIR/run.log"
+cargo_log="$TMP_DIR/cargo.log"
+(
+  cd "$PROJECT_DIR"
+  PATH="$BIN_DIR:$PATH" CARGO_LOG="$cargo_log" ./build-rustfs.sh \
+    --dev \
+    --no-console \
+    --skip-verification \
+    --output-dir "$TMP_DIR/out" \
+    --features webdav >"$run_log"
+)
+
+grep -q -- "Features: webdav" "$run_log"
+grep -q -- "--features webdav" "$cargo_log"
+
+short_run_log="$TMP_DIR/run-short.log"
+short_cargo_log="$TMP_DIR/cargo-short.log"
+(
+  cd "$PROJECT_DIR"
+  PATH="$BIN_DIR:$PATH" CARGO_LOG="$short_cargo_log" ./build-rustfs.sh \
+    --dev \
+    --no-console \
+    --skip-verification \
+    --output-dir "$TMP_DIR/out-short" \
+    -f full >"$short_run_log"
+)
+
+grep -q -- "Features: full" "$short_run_log"
+grep -q -- "--features full" "$short_cargo_log"
+
+missing_log="$TMP_DIR/missing.log"
+if (
+  cd "$PROJECT_DIR"
+  PATH="$BIN_DIR:$PATH" CARGO_LOG="$cargo_log" ./build-rustfs.sh --features >"$missing_log" 2>&1
+); then
+  echo "Expected --features without a value to fail" >&2
+  exit 1
+fi
+
+grep -q -- "Missing value for --features" "$missing_log"