Added "search" action to "line_in_file" function

Author: jaydrogers

docs/content/docs/3.project-templates/99.create-your-own-template.md

@@ -125,7 +125,7 @@ line_in_file [--file FILE] [--action ACTION] [ARGUMENTS...]
 | Parameter | Description | Required | Default |
 |-----------|-------------|----------|---------|
 | `--file FILE` | Specifies the target file(s) to modify. Can be used multiple times for multiple files. | Yes | N/A |
-| `--action ACTION` | Determines the operation to perform. Available actions: `ensure`, `replace`, `after`, `exact`. | No | `ensure` |
+| `--action ACTION` | Determines the operation to perform. Available actions: `ensure`, `replace`, `after`, `exact`, `search`. | No | `ensure` |
 | `ARGUMENTS` | The content to manipulate, which varies based on the chosen action. | Yes | N/A |
 
 #### Actions
@@ -136,6 +136,7 @@ line_in_file [--file FILE] [--action ACTION] [ARGUMENTS...]
 | `replace` | Replaces a line containing specific content with a new line. | Two arguments: search content and replacement line. | Appends the replacement line to the file. |
 | `after` | Inserts a new line after a line containing specific content. | Two arguments: search content and line to insert. | Appends both the search content and new line to the file. |
 | `exact` | Performs an exact replacement of text within the file. | Two arguments: exact text to replace and replacement text. | Returns an error. |
+| `search` | Searches for specified content in the file. | One argument: content to search for. | Returns false (exit code 1). |
 
 #### Usage Examples
 

lib/functions.sh

@@ -642,16 +642,13 @@ line_in_file() {
         return 1
     fi
 
-    if [[ ${#args[@]} -eq 0 ]]; then
+    if [[ ${#args[@]} -eq 0 && "$action" != "search" ]]; then
         echo "Error: No content specified" >&2
         return 1
     fi
 
     # Process each file
     for file in "${files[@]}"; do
-        # Create file if it doesn't exist
-        [[ -f "$file" ]] || touch "$file"
-
         case $action in
             ensure)
                 for line in "${args[@]}"; do
@@ -700,6 +697,13 @@ ${args[1]}" "$file"
                     return 1
                 fi
                 ;;
+            search)
+                if grep -qF -- "${args[0]}" "$file"; then
+                    return 0  # True, content found
+                else
+                    return 1  # False, content not found
+                fi
+                ;;
             *)
                 echo "Error: Invalid action '$action'" >&2
                 return 1