update missing npm publish scripts

.github/workflows/scripts/determine-npm-tag.sh

@@ -0,0 +1,66 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+fail() { echo "Error: $*" >&2; exit 1; }
+
+# Ensure required variables are set
+if [[ -z "${REFERENCE_PKG}" || -z "${VERSION_TYPE}" || -z "${VERSION}" ]]; then
+  fail "Missing required environment variables: REFERENCE_PKG, VERSION_TYPE, VERSION"
+fi
+
+semver_cmp () {
+  IFS='.' read -r -a arr_a <<< "$1"
+  IFS='.' read -r -a arr_b <<< "$2"
+
+  for i in 0 1 2; do
+    local aa=${arr_a[i]:-0}
+    local bb=${arr_b[i]:-0}
+    # shellcheck disable=SC2004
+    if (( 10#$aa > 10#$bb )); then echo gt; return 0; fi
+    if (( 10#$aa < 10#$bb )); then echo lt; return 0; fi
+  done
+
+  echo "eq"
+}
+
+
+STABLE_REGEX='^([0-9]+)\.([0-9]+)\.([0-9]+)$'       # x.y.z
+PRE_REGEX='^([0-9]+)\.([0-9]+)\.([0-9]+)-([0-9]+)$' # x.y.z-123456
+
+# Validate that the VERSION matches VERSION_TYPE
+# - stable must be x.y.z
+# - nightly/canary must be x.y.z-123456
+case "$VERSION_TYPE" in
+  stable)
+    [[ $VERSION =~ $STABLE_REGEX ]] || fail "For 'stable', version must match x.y.z" ;;
+  nightly|canary)
+    [[ $VERSION =~ $PRE_REGEX   ]] || fail "For '$VERSION_TYPE', version must match x.y.z-123456" ;;
+  *)
+    fail "Unknown version_type '$VERSION_TYPE'" ;;
+esac
+
+# Extract major, minor from VERSION
+IFS=.- read -r major minor patch _ <<< "$VERSION"
+
+# Determine NPM tag
+case "$VERSION_TYPE" in
+  canary)  TAG="canary" ;;
+  nightly) TAG="nightly" ;;
+  stable)
+    # Use npm dist-tag "latest" as the reference
+    LATEST="$(npm view --silent "$REFERENCE_PKG" dist-tags.latest 2>/dev/null || true)"
+    echo "Latest for $REFERENCE_PKG is ${LATEST:-<none>}" >&2
+
+    if [[ -z ${LATEST:-} ]]; then
+      TAG="latest"  # first ever publish
+    else
+      case "$(semver_cmp "$VERSION" "$LATEST")" in
+        gt)    TAG="latest" ;;                      # newer than reference -> latest
+        lt|eq) TAG="v${major}.${minor}-latest" ;;   # older or equal -> vX.Y-latest
+      esac
+    fi
+    ;;
+esac
+
+echo "Resolved NPM_TAG=$TAG (VERSION=$VERSION, current latest=${LATEST:-none})"  1>&2 # stderr
+printf '%s' "$TAG"