Simplify release validation gates

scripts/release-check.sh

@@ -12,68 +12,18 @@ run_go() {
   GOTOOLCHAIN="$toolchain" GOPROXY=off go "$@"
 }
 
-check_toolchain() {
-  local toolchain=$1
-  GOTOOLCHAIN="$toolchain" GOPROXY=off go version >/dev/null
-  run_go "$toolchain" mod download
-}
-
-check_toolchain "$baseline_toolchain"
-bash -n scripts/release-check.sh
-
-temporary_dir=$(mktemp -d)
-trap 'rm -rf -- "$temporary_dir"' EXIT
-candidate_manifest=$temporary_dir/candidate-files
-while IFS= read -r -d '' candidate_file; do
-  if [[ -e "$candidate_file" || -L "$candidate_file" ]]; then
-    printf '%s\0' "$candidate_file" >>"$candidate_manifest"
-  fi
-done < <(git ls-files --cached --others --exclude-standard -z)
-tar --null --files-from="$candidate_manifest" --create --file=- |
-  tar --extract --file=- --directory="$temporary_dir"
-(
-  cd "$temporary_dir"
-  GOTOOLCHAIN="$baseline_toolchain" GOPROXY=off go mod tidy
-)
-diff -u go.mod "$temporary_dir/go.mod"
-diff -u go.sum "$temporary_dir/go.sum"
-
-go_files=()
-while IFS= read -r -d '' go_file; do
-  if [[ -f "$go_file" ]]; then
-    go_files+=("$go_file")
-  fi
-done < <(git ls-files --cached --others --exclude-standard -z -- '*.go')
-if ((${#go_files[@]})); then
-  unformatted=$(gofmt -l -- "${go_files[@]}")
-  if [[ -n "$unformatted" ]]; then
-    printf 'gofmt required for:\n%s\n' "$unformatted" >&2
-    exit 1
-  fi
+if ! GOTOOLCHAIN="$baseline_toolchain" GOPROXY=off go version >/dev/null; then
+  printf 'release toolchain %s is unavailable; acquire it before validation\n' "$baseline_toolchain" >&2
+  exit 1
 fi
 
-git diff --check HEAD --
-while IFS= read -r -d '' candidate_file; do
-  if [[ ! -f "$candidate_file" ]]; then
-    continue
-  fi
-  case "$candidate_file" in
-    *.go|*.md|*.sh|go.mod|go.sum|LICENSE|.gitignore|AGENTS.md)
-      if LC_ALL=C grep -nE '[[:blank:]]+$' -- "$candidate_file"; then
-        printf 'trailing whitespace found in %s\n' "$candidate_file" >&2
-        exit 1
-      fi
-      ;;
-  esac
-done < <(git ls-files --cached --others --exclude-standard -z)
-
 # Verbose output reports skipped cases without a separate evidence run.
-run_go "$baseline_toolchain" test -race -v ./...
-run_go "$baseline_toolchain" vet ./...
+run_go "$baseline_toolchain" test -mod=readonly -vet=off -race -v ./...
+run_go "$baseline_toolchain" vet -mod=readonly ./...
 
 # Only release-validated targets gate publication; macOS is best-effort.
 for target in linux/amd64 linux/arm64; do
   target_os=${target%/*}
   target_arch=${target#*/}
-  GOTOOLCHAIN="$baseline_toolchain" GOPROXY=off CGO_ENABLED=0 GOOS="$target_os" GOARCH="$target_arch" go build ./...
+  GOTOOLCHAIN="$baseline_toolchain" GOPROXY=off CGO_ENABLED=0 GOOS="$target_os" GOARCH="$target_arch" go build -mod=readonly ./...
 done