Ensure random seed is ignored

src/commands/git_secret_init.sh

@@ -1,5 +1,27 @@
 #!/usr/bin/env bash
 
+AWK_CHECK_GITIGNORE='
+BEGIN { cnt=0; }
+{
+  if ( pattern == $0 )
+    cnt++
+}
+
+END { print cnt }
+'
+
+
+function gitignore_has_pattern {
+  local pattern
+  local gitignore_file_path
+
+  pattern="$1"
+  gitignore_file_path=$(_append_root_path '.gitignore')
+
+  _maybe_create_gitignore
+  gawk -v pattern="$pattern" "$AWK_CHECK_GITIGNORE" "$gitignore_file_path"
+}
+
 
 function init {
   OPTIND=1
@@ -30,4 +52,13 @@ function init {
   touch "$(_get_secrets_dir_keys_mapping)" "$(_get_secrets_dir_paths_mapping)"
 
   echo "'$git_secret_dir/' created."
+
+  # verify random_seed file is ignored
+  local random_seed_file
+  local already_in
+  random_seed_file=$(_append_root_path '.gitignore/random_seed')
+  already_in=$(gitignore_has_pattern "$random_seed_file")
+  [[ "$already_in" -gt 0 ]] && \
+    echo "$random_seed_file" >> "$gitignore_file_path"
+  # TODO: git attributes to view diffs
 }