fix(yamlfmt): check all local config file variants

yamlfmt script missed some valid file names when checking current dir for local config files

This adds all possible files names mentioned in the docs:
https://github.com/google/yamlfmt/blob/main/docs/config-file.md

Signed-off-by: Asser Hakala <extern.asser.hakala@digg.se>

Author: asserh

linters/yaml.sh

@@ -23,9 +23,30 @@ find_yaml_files() {
     2>/dev/null
 }
 
+has_local_config() {
+  local config_files=(
+    ".yamlfmt"
+    ".yamlfmt.yml"
+    ".yamlfmt.yaml"
+    "yamlfmt.yml"
+    "yamlfmt.yaml"
+  )
+
+  for file in "${config_files[@]}"; do
+    [[ -f "$file" ]] && return 0
+  done
+
+  return 1
+}
+
 get_config_flag() {
-  # If project has its own config, use default behavior; otherwise use our default
-  if [[ ! -f ".yamlfmt" && ! -f "yamlfmt.yml" && ! -f "yamlfmt.yaml" && -f "${DEFAULT_CONFIG}" ]]; then
+  # If project has its own config, do nothing
+  if has_local_config; then
+    return 0
+  fi
+
+  # Otherwise, use default config if it exists
+  if [[ -f "${DEFAULT_CONFIG}" ]]; then
     printf "%s" "-conf ${DEFAULT_CONFIG}"
   fi
 }