call build script from pipeline job

.gitlab-ci.yml

@@ -18,10 +18,7 @@ stages:
 build_guide_by_tag:
   extends: .template:build_guide
   script:
-    - export COMMIT_DATE=$(git show -s --format=%ci $CI_COMMIT_SHA | cut -c1-10)
-    - export REVISION=$CI_COMMIT_TAG
-    - asciidoctor-pdf -a revnumber=$REVISION -a revdate=$COMMIT_DATE -o angelguide_en.pdf guide.adoc
-    - asciidoctor-pdf -a revnumber=$REVISION -a revdate=$COMMIT_DATE -o angelguide_de.pdf -a lang=de guide.adoc
+    - ./build.sh $CI_COMMIT_TAG
   rules:
     - if: $CI_COMMIT_TAG != null
       when: always
@@ -29,10 +26,7 @@ build_guide_by_tag:
 build_guide:
   extends: .template:build_guide
   script:
-    - export COMMIT_DATE=$(git show -s --format=%ci $CI_COMMIT_SHA | cut -c1-10)
-    - export REVISION=$CI_COMMIT_SHORT_SHA
-    - asciidoctor-pdf -a revnumber=$REVISION -a revdate=$COMMIT_DATE -o angelguide_en.pdf guide.adoc
-    - asciidoctor-pdf -a revnumber=$REVISION -a revdate=$COMMIT_DATE -o angelguide_de.pdf -a lang=de guide.adoc
+    - ./build.sh $CI_COMMIT_SHORT_SHA
   rules:
     - if: $CI_COMMIT_TAG == null
       when: always