From 63fa78a141cfce24946c4c0fdda1e9b491c06a6d Mon Sep 17 00:00:00 2001
From: Anita Akaeze <anita.akaeze@hashicorp.com>
Date: Wed, 23 Aug 2023 15:26:05 -0400
Subject: [PATCH] NET-5382 & PLAT-1159: Do not trigger workflow if only doc
 files are in commit history (#18528)

NET-5382: Do not run workflow runs if at least one path matches
---
 .../scripts/filter_changed_files_go_test.sh   | 33 +++++++++++++++++++
 .github/workflows/go-tests.yml                | 18 +++++++++-
 .github/workflows/test-integrations.yml       | 18 +++++++++-
 3 files changed, 67 insertions(+), 2 deletions(-)
 create mode 100755 .github/scripts/filter_changed_files_go_test.sh

diff --git a/.github/scripts/filter_changed_files_go_test.sh b/.github/scripts/filter_changed_files_go_test.sh
new file mode 100755
index 0000000000..d83e4a0948
--- /dev/null
+++ b/.github/scripts/filter_changed_files_go_test.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+
+# Get the list of changed files
+files_to_check=$(git diff --name-only origin/$GITHUB_BASE_REF)
+
+# Define the directories to check
+skipped_directories=("docs/" "ui/" "website/" "grafana/")
+
+# Initialize a variable to track directories outside the skipped ones
+other_directories=""
+trigger_ci=false
+
+# Loop through the changed files and find directories/files outside the skipped ones
+for file_to_check in $files_to_check; do
+	file_is_skipped=false
+	for dir in "${skipped_directories[@]}"; do
+		if [[ "$file_to_check" == "$dir"* ]] || [[ "$file_to_check" == *.md && "$dir" == *"/" ]]; then
+			file_is_skipped=true
+			break
+		fi
+	done
+	if [ "$file_is_skipped" = "false" ]; then
+		other_directories+="$(dirname "$file_to_check")\n"
+		trigger_ci=true
+		echo "Non doc file(s) changed - triggered ci: $trigger_ci"
+		echo -e $other_directories
+		echo "trigger-ci=$trigger_ci" >>"$GITHUB_OUTPUT"
+		exit 0 ## if file is outside of the skipped_directory exit script
+	fi
+done
+
+echo "Only doc file(s) changed - triggered ci: $trigger_ci"
+echo "trigger-ci=$trigger_ci" >>"$GITHUB_OUTPUT"
diff --git a/.github/workflows/go-tests.yml b/.github/workflows/go-tests.yml
index 2136f43185..9db458ed5d 100644
--- a/.github/workflows/go-tests.yml
+++ b/.github/workflows/go-tests.yml
@@ -24,8 +24,23 @@ env:
   GOPRIVATE: github.com/hashicorp # Required for enterprise deps
 
 jobs:
+  conditional-skip:
+    runs-on: ubuntu-latest 
+    name: Get files changed and conditionally skip CI
+    outputs:
+      trigger-ci: ${{ steps.read-files.outputs.trigger-ci }}
+    steps:
+      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
+        with:
+          fetch-depth: 0  
+      - name: Get changed files
+        id: read-files
+        run: ./.github/scripts/filter_changed_files_go_test.sh
+
   setup:
+    needs: [conditional-skip]
     name: Setup
+    if: needs.conditional-skip.outputs.trigger-ci == 'true'
     runs-on: ubuntu-latest
     outputs:
       compute-small: ${{ steps.setup-outputs.outputs.compute-small }}
@@ -464,6 +479,7 @@ jobs:
 
   go-tests-success:
     needs:
+    - conditional-skip
     - setup
     # Reenable later
     #- check-generated-deep-copy
@@ -487,7 +503,7 @@ jobs:
     - go-test-32bit
     # - go-test-s390x
     runs-on: ${{ fromJSON(needs.setup.outputs.compute-small) }}
-    if: ${{ always() }}
+    if: always() && needs.conditional-skip.outputs.trigger-ci == 'true'
     steps:
       - name: evaluate upstream job results
         run: |
diff --git a/.github/workflows/test-integrations.yml b/.github/workflows/test-integrations.yml
index 9fc3a59f90..71394bba91 100644
--- a/.github/workflows/test-integrations.yml
+++ b/.github/workflows/test-integrations.yml
@@ -26,9 +26,24 @@ env:
   GOPRIVATE: github.com/hashicorp # Required for enterprise deps
 
 jobs:
+  conditional-skip:
+    runs-on: ubuntu-latest 
+    name: Get files changed and conditionally skip CI
+    outputs:
+      trigger-ci: ${{ steps.read-files.outputs.trigger-ci }}
+    steps:
+      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
+        with:
+          fetch-depth: 0  
+      - name: Get changed files
+        id: read-files
+        run: ./.github/scripts/filter_changed_files_go_test.sh
+
   setup:
+    needs: [conditional-skip]
     runs-on: ubuntu-latest
     name: Setup
+    if: needs.conditional-skip.outputs.trigger-ci == 'true'
     outputs:
       compute-small: ${{ steps.runners.outputs.compute-small }}
       compute-medium: ${{ steps.runners.outputs.compute-medium }}
@@ -558,6 +573,7 @@ jobs:
 
   test-integrations-success:
     needs: 
+    - conditional-skip
     - setup
     - dev-build
     - nomad-integration-test
@@ -567,7 +583,7 @@ jobs:
     - compatibility-integration-test
     - peering_commontopo-integration-test
     runs-on: ${{ fromJSON(needs.setup.outputs.compute-small) }}
-    if: ${{ always() }}
+    if: always() && needs.conditional-skip.outputs.trigger-ci == 'true'
     steps:
       - name: evaluate upstream job results
         run: |