Retrieving Github env vars

Signed-off-by: Matt Oswalt <[email protected]>

.github/workflows/main.yml

@@ -41,22 +41,39 @@ jobs:
     # ----------------------------------------
 
 
-    - name: Dispatch to other repo
-      id: preview_dispatch
+    - name: Create Preview
+      id: create_preview
       run: |
-        curl -X POST -H "Accept: application/vnd.github.v3+json" https://api.github.com/repos/nre-learning/previews/dispatches -d '{"event_type":"preview_image_build"}'
+        echo ::set-output name=preview_id::$(./create-preview.sh | jq -r '.ID')
 
 
+    # GITHUB_SHA is the id of the merge commit on the PR branch.
 
+    - name: Build Preview Images
+      id: build_preview_images
+      run: |
+        echo $PREVIEW_ID && echo $GITHUB_REF && echo $PREVIEW_GIT_REF && echo $PREVIEW_CURRICULUM_REPO
+      env:
+        PREVIEW_ID: ${{ steps.create_preview.outputs.preview_id }}
+        # PREVIEW_ID: ${{needs.prebuild.outputs.preview_id}}
+        PREVIEW_GIT_REF: ${{ github.event.pull_request.head.sha || github.sha }}
+        # echo ${{ github.event.pull_request.head.sha }}
+        PREVIEW_BRANCH: ""
+        PREVIEW_CURRICULUM_REPO: ""
+        # TODO - pass token in here vs using your own personal token, just like wait for check action does
+        # (I believe this github token is passed even for PRs)
+
+
+    # https://github.com/marketplace/actions/wait-for-check
+    # - name: Wait for build to succeed
+    #   uses: fountainhead/[email protected]
+    #   id: wait-for-build
+    #   with:
+    #     token: ${{ secrets.GITHUB_TOKEN }}
+    #     checkName: build
+    #     ref: ${{ github.event.pull_request.head.sha || github.sha }}
 
 
-# #///////////////////////
-
-#     - name: Create Preview
-#       id: create_preview
-#       run: |
-#         echo ::set-output name=preview_id::$(./create-preview.sh | jq -r '.ID')
-
 #     - name: Get Buildables
 #       id: get_buildables
 #       run: |