From 9376a908a715d3299b061051608b41658ab12da7 Mon Sep 17 00:00:00 2001
From: lukaszcl <120112546+lukaszcl@users.noreply.github.com>
Date: Mon, 2 Sep 2024 15:55:17 +0200
Subject: [PATCH] Generate hash of integration-tests/ for test runner image if
 tag not provided

---
 .github/actions/build-test-image/action.yml | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/.github/actions/build-test-image/action.yml b/.github/actions/build-test-image/action.yml
index dcc9fefda71..bcd8b4b27bc 100644
--- a/.github/actions/build-test-image/action.yml
+++ b/.github/actions/build-test-image/action.yml
@@ -7,8 +7,7 @@ inputs:
     default: chainlink-tests
     required: false
   tag:
-    description: The tag to use by default and to use for checking image existance
-    default: ${{ github.sha }}
+    description: The tag to use by default and to use for checking image existance. If not provided, the hash of the integration-tests/ directory will be used
     required: false
   other_tags:
     description: Other tags to push if needed
@@ -90,12 +89,22 @@ runs:
     # End Base Image Logic
 
     # Test Runner Logic
+    - name: Get hash of integration-tests/ for test runner image
+      id: test_runner_hash
+      if: ${{ inputs.tag == '' }}
+      # Do not include testconfig/ in the hash to avoid rebuilding the image when only testconfig/ changes
+      shell: sh
+      run: |
+        HASH_VALUE=$(echo ${{ hashFiles('integration-tests/**', '!integration-tests/testconfig/**') }})
+        echo "Computed hash: $HASH_VALUE"
+        echo "hash_value=$HASH_VALUE" >> $GITHUB_OUTPUT
+
     - name: Check if image exists
       id: check-image
       uses: smartcontractkit/chainlink-github-actions/docker/image-exists@75a9005952a9e905649cfb5a6971fd9429436acd # v2.3.25
       with:
         repository: ${{ inputs.repository }}
-        tag: ${{ inputs.tag }}
+        tag: ${{ inputs.tag || steps.test_runner_hash.outputs.hash_value }}
         AWS_REGION: ${{ inputs.QA_AWS_REGION }}
         AWS_ROLE_TO_ASSUME: ${{ inputs.QA_AWS_ROLE_TO_ASSUME }}
     - name: Build and Publish Test Runner
@@ -103,7 +112,7 @@ runs:
       uses: smartcontractkit/chainlink-github-actions/docker/build-push@75a9005952a9e905649cfb5a6971fd9429436acd # v2.3.25
       with:
         tags: |
-          ${{ inputs.QA_AWS_ACCOUNT_NUMBER }}.dkr.ecr.${{ inputs.QA_AWS_REGION }}.amazonaws.com/${{ inputs.repository }}:${{ inputs.tag }}
+          ${{ inputs.QA_AWS_ACCOUNT_NUMBER }}.dkr.ecr.${{ inputs.QA_AWS_REGION }}.amazonaws.com/${{ inputs.repository }}:${{ inputs.tag || steps.test_runner_hash.outputs.hash_value }}
           ${{ inputs.other_tags }}
         file: ./integration-tests/test.Dockerfile
         build-args: |
@@ -116,7 +125,7 @@ runs:
       shell: sh
       env:
         INPUTS_REPOSITORY: ${{ inputs.repository }}
-        INPUTS_TAG: ${{ inputs.tag }}
+        INPUTS_TAG: ${{ inputs.tag || steps.test_runner_hash.outputs.hash_value }}
       run: |
         echo "### ${INPUTS_REPOSITORY} image tag for this test run :ship:" >>$GITHUB_STEP_SUMMARY
         echo "\`${INPUTS_TAG}\`" >>$GITHUB_STEP_SUMMARY