From 037d4364e596cc42aa487d88d08364b5d78a4456 Mon Sep 17 00:00:00 2001
From: Mitchell Hashimoto <m@mitchellh.com>
Date: Wed, 20 Nov 2024 15:28:10 -0800
Subject: [PATCH] config: C API ghostty_config_clone

---
 include/ghostty.h   |  1 +
 src/config/CAPI.zig | 17 +++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/include/ghostty.h b/include/ghostty.h
index 5186ad783..813f81df2 100644
--- a/include/ghostty.h
+++ b/include/ghostty.h
@@ -646,6 +646,7 @@ ghostty_info_s ghostty_info(void);
 
 ghostty_config_t ghostty_config_new();
 void ghostty_config_free(ghostty_config_t);
+ghostty_config_t ghostty_config_clone(ghostty_config_t);
 void ghostty_config_load_cli_args(ghostty_config_t);
 void ghostty_config_load_default_files(ghostty_config_t);
 void ghostty_config_load_recursive_files(ghostty_config_t);
diff --git a/src/config/CAPI.zig b/src/config/CAPI.zig
index bf86a0954..0b7108a59 100644
--- a/src/config/CAPI.zig
+++ b/src/config/CAPI.zig
@@ -19,6 +19,7 @@ export fn ghostty_config_new() ?*Config {
 
     result.* = Config.default(global.alloc) catch |err| {
         log.err("error creating config err={}", .{err});
+        global.alloc.destroy(result);
         return null;
     };
 
@@ -32,6 +33,22 @@ export fn ghostty_config_free(ptr: ?*Config) void {
     }
 }
 
+/// Deep clone the configuration.
+export fn ghostty_config_clone(self: *Config) ?*Config {
+    const result = global.alloc.create(Config) catch |err| {
+        log.err("error allocating config err={}", .{err});
+        return null;
+    };
+
+    result.* = self.clone(global.alloc) catch |err| {
+        log.err("error cloning config err={}", .{err});
+        global.alloc.destroy(result);
+        return null;
+    };
+
+    return result;
+}
+
 /// Load the configuration from the CLI args.
 export fn ghostty_config_load_cli_args(self: *Config) void {
     self.loadCliArgs(global.alloc) catch |err| {