From c21a8cb9bd4debbca6ea49a21405b99fc9ce57b0 Mon Sep 17 00:00:00 2001
From: kentsanggds <ken.tsang@digital.cabinet-office.gov.uk>
Date: Fri, 7 Feb 2025 15:16:53 +0000
Subject: [PATCH] Add govuk-app-linter.sh

---
 govuk-app-linter.sh | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100755 govuk-app-linter.sh

diff --git a/govuk-app-linter.sh b/govuk-app-linter.sh
new file mode 100755
index 00000000000..bdb13a5c142
--- /dev/null
+++ b/govuk-app-linter.sh
@@ -0,0 +1,39 @@
+#!/bin/bash
+# set -e
+
+ENVIRONMENTS=("integration" "staging" "production")
+
+for env in "${ENVIRONMENTS[@]}"; do
+  array_length=$(yq e ".govukApplications | length - 1" "./charts/app-config/ci/$env-values.yaml")
+
+  if [ "$array_length" -le 0 ] ; then
+    continue;
+  fi
+
+  echo "=================== $env ===================";
+
+  declare -i errors=0;
+
+  # expand all the aliases
+  yq 'explode(.)' "./charts/app-config/ci/$env-values.yaml" > "lint-tmp/$env-exploded.yaml"
+
+  for app_index in $(seq 0 "$array_length");do
+    filename="./lint-tmp/$(yq e ".govukApplications[$app_index].name" "./charts/app-config/ci/$env-values.yaml")-chart.yaml"
+
+    echo "$app_index/$array_length: linting $filename";
+
+    yq e ".govukApplications[$app_index].helmValues" "lint-tmp/$env-exploded.yaml" > "$filename";
+
+    output=$(helm lint --quiet -f "$filename" ./charts/generic-govuk-app)
+    if [[ "$output" == *"[ERROR]"* ]]; then
+      echo "$output";
+      errors+=1;
+    fi
+  done
+
+  if [[ errors -gt 0 ]]; then
+    echo "$errors lint errors found in $env values";
+    exit 1
+  fi
+
+done