refs TG-2: add test Jenkins2

Jenkinsfile

@@ -23,44 +23,46 @@ environment {
             }
         }
     }
-    post {
+post {
     always {
+        script {
+            def result = currentBuild.currentResult ?: 'UNKNOWN'
+
             withCredentials([string(credentialsId: 'TAIGA_TOKEN', variable: 'TAIGA_TOKEN')]) {
-                sh '''
+                sh """
                     set -e
 
-                    REF=$(git log -1 --pretty=%B | grep -oE 'TG-[0-9]+' | head -1 | cut -d- -f2)
+                    REF=\$(git log -1 --pretty=%B | grep -oE 'TG-[0-9]+' | head -1 | cut -d- -f2 || true)
 
-                    if [ -z "$REF" ]; then
+                    if [ -z "\$REF" ]; then
                       echo "No TG-* reference found"
                       exit 0
                     fi
 
-                    STATUS="${currentBuild.currentResult}"
-                    COMMENT="Jenkins build #${BUILD_NUMBER}: ${STATUS}\\n${BUILD_URL}"
+                    ISSUE_JSON=\$(curl -s \\
+                      -H "Authorization: Bearer \$TAIGA_TOKEN" \\
+                      "https://taiga.grigowashere.ru/api/v1/issues/by_ref?project=2&ref=\$REF")
 
-                    ISSUE_JSON=$(curl -s \
-                      -H "Authorization: Bearer ${TAIGA_TOKEN}" \
-                      "https://taiga.grigowashere.ru/api/v1/issues/by_ref?project=2&ref=${REF}")
+                    ISSUE_ID=\$(echo "\$ISSUE_JSON" | python3 -c 'import sys,json; print(json.load(sys.stdin)["id"])')
+                    VERSION=\$(echo "\$ISSUE_JSON" | python3 -c 'import sys,json; print(json.load(sys.stdin)["version"])')
 
-                    ISSUE_ID=$(echo "$ISSUE_JSON" | python3 -c 'import sys,json; print(json.load(sys.stdin)["id"])')
-                    VERSION=$(echo "$ISSUE_JSON" | python3 -c 'import sys,json; print(json.load(sys.stdin)["version"])')
+                    export COMMENT="Jenkins build #${BUILD_NUMBER}: ${result}
+${BUILD_URL}"
+                    export VERSION="\$VERSION"
 
-                    python3 - <<PY > /tmp/taiga-comment.json
-    import json
-    comment = """${COMMENT}"""
-    print(json.dumps({"comment": comment, "version": int("${VERSION}")}))
-    PY
+                    python3 -c 'import json, os; print(json.dumps({"comment": os.environ["COMMENT"], "version": int(os.environ["VERSION"])}))' \\
+                      > /tmp/taiga-comment.json
 
-                    curl -s -X POST \
-                      -H "Authorization: Bearer ${TAIGA_TOKEN}" \
-                      -H "Content-Type: application/json" \
-                      --data @/tmp/taiga-comment.json \
-                      "https://taiga.grigowashere.ru/api/v1/issues/${ISSUE_ID}/comments"
+                    curl -s -X POST \\
+                      -H "Authorization: Bearer \$TAIGA_TOKEN" \\
+                      -H "Content-Type: application/json" \\
+                      --data @/tmp/taiga-comment.json \\
+                      "https://taiga.grigowashere.ru/api/v1/issues/\$ISSUE_ID/comments"
 
-                    echo "Commented Taiga TG-${REF}"
-                '''
+                    echo "Commented Taiga TG-\$REF"
+                """.stripIndent()
             }
         }
     }
 }
+}