chore(scripts): fix release script

Author: dszakallas

.gitignore

@@ -3,3 +3,4 @@ node_modules
 trace.log
 trace_*
 coverage
+.tmp

package.json

@@ -31,6 +31,8 @@
     "cover": "istanbul cover _mocha $(find ./lib -name \"*.spec.js\" -not -path \"./node_modules/*\"); open coverage/lcov-report/index.html",
     "changelog": "conventional-changelog -p angular -o CHANGELOG.md -r 500",
     "semantic-release": "semantic-release pre && npm publish && semantic-release post",
+    "semantic-release-pre": "semantic-release pre",
+    "semantic-release-post": "semantic-release post",
     "install": "npm i v8-profiler --build-from-source || exit 0"
   },
   "repository": {

scripts/semantic-release.sh

@@ -10,5 +10,19 @@ elif [ "$PROJECT_REPONAME" != "$RELEASE_REPONAME" ]; then
 elif [ "$CURRENT_BRANCH" != "$RELEASE_BRANCH" ]]; then
     echo "Branch is not $RELEASE_BRANCH. Release skipped"
 else
-    CI=true npm run semantic-release
+    mkdir -p .tmp
+    tmpfile=semantic-release-$(date +'%Y%m%d%H%M%S')
+    set +e
+    CI=true npm run semantic-release-pre 2> .tmp/$tmpfile
+    if [ "$?" -ne "0" ]; then
+        grep -oE 'ENOCHANGE (.+)$' .tmp/$tmpfile
+        if [ "$?" -ne "0" ]; then
+            echo "Semantic release failed. Reason:"
+            cat .tmp/$tmpfile
+            exit 1
+        fi
+    fi
+    set -e
+    npm publish
+    CI=true npm run semantic-release-post
 fi