Exclude SHAs changes from validate

Signed-off-by: Pierangelo Di Pilato <[email protected]>

.github/workflows/validate.yaml

@@ -81,16 +81,7 @@ jobs:
 
       - name: Check if everything is consistent
         working-directory: ./src/github.com/${{ github.repository }}
-        run: |
-          if [ -n "$(git status --porcelain)" ]; then
-            echo '::debug::Running `git status`'
-            git -c color.status=always status
-            echo '::debug::Running `git diff`'
-            git -c color.ui=always diff
-            echo '::error::Not all generated files are commited. Run `make generated-files` and commit files.'
-            echo '::warning::`make generated-files` needs to be run on GOPATH due to https://github.com/knative/pkg/issues/1287'
-            exit 33
-          fi
+        run: ./hack/verify-diff.sh
 
       - name: Check existence of skipRange and replaces in ClusterServiceVersion
         working-directory: ./src/github.com/${{ github.repository }}

hack/verify-diff.sh

@@ -0,0 +1,59 @@
+#!/usr/bin/env bash
+
+# Define the files to exclude
+readonly EXCLUDE_FILES=(
+  'olm-catalog/serverless-operator/manifests/serverless-operator.clusterserviceversion.yaml'
+  'olm-catalog/serverless-operator/index/Dockerfile'
+)
+# Define the patterns to exclude
+readonly EXCLUDE_PATTERNS=(
+  '*sha256:*'
+)
+
+# Function to check if a file should be excluded
+function should_exclude() {
+  local file="$1"
+  for pattern in "${EXCLUDE_PATTERNS[@]}"; do
+    diff="$(git --no-pager -c color.ui=never diff --unified=0 "$file" | grep '^[+-]   ')"
+    while IFS= read -r line; do
+      # shellcheck disable=SC2053
+      if  [[ $line == $pattern || $line =~ $pattern ]]; then
+        echo "Excluding line $line since matches pattern $pattern"
+      else
+        echo "line '$line' doesn't match pattern '$pattern', failing the exclude check"
+        return 1
+      fi
+    done <<< "$diff"
+  done
+
+  return 0
+}
+
+# shellcheck disable=SC2016
+function debug_log_fail() {
+  echo '::debug::Running `git status`'
+  git -c color.status=always status
+  echo '::debug::Running `git diff`'
+  git --no-pager -c color.ui=always diff
+  echo '::error::Not all generated files are committed. Run `make generated-files` and commit files.'
+  echo '::warning::`make generated-files` needs to be run on GOPATH due to https://github.com/knative/pkg/issues/1287'
+}
+
+# shellcheck disable=SC2143
+if [ -n "$(git status --porcelain | grep -v -E "$(IFS=\|; echo "${EXCLUDE_FILES[*]}")")" ]; then
+  debug_log_fail
+  exit 33
+fi
+
+# shellcheck disable=SC2143
+if [ -n "$(git status --porcelain | grep -E "$(IFS=\|; echo "${EXCLUDE_FILES[*]}")")" ]; then
+  echo 'Excluded files are different'
+
+  git diff --name-only | while read -r file; do
+    if ! should_exclude "$file"; then
+      git --no-pager -c color.ui=always diff "$file"
+      debug_log_fail
+      exit 33
+    fi
+  done
+fi