Double quote variable names to prevent word splitting

Signed-off-by: JenTing Hsiao <[email protected]>

Author: jenting

.werft/workspace-run-integration-tests.yaml

@@ -59,7 +59,7 @@ pod:
       function cleanup ()
       {
         werft log phase "clean up" "clean up"
-        git push origin :$BRANCH | werft log slice "clean up"
+        git push origin "${BRANCH}" | werft log slice "clean up"
         werft log slice "clean up" --done
       }
 
@@ -70,30 +70,30 @@ pod:
 
       git config --global user.name roboquat
       git config --global user.email [email protected]
-      git remote set-url origin https://oauth2:$[email protected]/gitpod-io/gitpod.git
+      git remote set-url origin https://oauth2:"${ROBOQUAT_TOKEN}"@github.com/gitpod-io/gitpod.git
 
       echo "copied config..." | werft log slice prepare
       go install github.com/csweichel/oci-tool@latest 2>&1 | werft log slice prepare
       werft log slice prepare --done
 
       werft log phase "build preview environment" "build preview environment"
       echo integration test >> README.md
-      git checkout -B $BRANCH
+      git checkout -B "${BRANCH}"
       git add README.md
       git commit -m "integration test"
-      git push --set-upstream origin $BRANCH
+      git push --set-upstream origin "${BRANCH}"
       trap cleanup SIGINT SIGTERM EXIT
 
-      BUILD_ID=$(werft job list repo.ref==refs/heads/${BRANCH} -o yaml | yq r - "result[0].name")
+      BUILD_ID=$(werft job list repo.ref==refs/heads/"${BRANCH}" -o yaml | yq r - "result[0].name")
       until [ "$BUILD_ID" != "" ]
       do
           sleep 1
-          BUILD_ID=$(werft job list repo.ref==refs/heads/${BRANCH} -o yaml | yq r - "result[0].name")
+          BUILD_ID=$(werft job list repo.ref==refs/heads/"${BRANCH}" -o yaml | yq r - "result[0].name")
       done
       echo "start build preview environment, job name: ${BUILD_ID}, this will take long time" | werft log slice "build preview environment"
       werft log result -d "build job" url "https://werft.gitpod-dev.com/job/${BUILD_ID}"
 
-      if ! werft job logs ${BUILD_ID} | werft log slice "build preview environment";
+      if ! werft job logs "${BUILD_ID}" | werft log slice "build preview environment";
       then
           echo "build failed" | werft log slice "build preview environment"
           exit 1
@@ -136,8 +136,8 @@ pod:
       done
 
       werft log phase "slack notification" "slack notification"
-      context_name={{ .Name }}
-      context_repo={{ .Repository.Repo }}
+      context_name="{{ .Name }}"
+      context_repo="{{ .Repository.Repo }}"
       werftJobUrl="https://werft.gitpod-dev.com/job/${context_name}"
 
       if [ "${FAILURE_COUNT}" -ne "0" ]; then