feat: finish ghostty pane backend integration

1 files changed, 92 insertions, 0 deletions

diff --git a/vendor/libghostty-vt/src/cli/show_config.zig b/vendor/libghostty-vt/src/cli/show_config.zig
new file mode 100644
index 00000000..cd0ba89a
--- /dev/null
+++ b/vendor/libghostty-vt/src/cli/show_config.zig
@@ -0,0 +1,92 @@
+const std = @import("std");
+const args = @import("args.zig");
+const Allocator = std.mem.Allocator;
+const Action = @import("ghostty.zig").Action;
+const configpkg = @import("../config.zig");
+const Config = configpkg.Config;
+const Pager = @import("Pager.zig");
+
+pub const Options = struct {
+    /// If true, do not load the user configuration, only load the defaults.
+    default: bool = false,
+
+    /// Only show the options that have been changed from the default.
+    /// This has no effect if `--default` is specified.
+    @"changes-only": bool = true,
+
+    /// If true print the documentation above each option as a comment,
+    /// if available.
+    docs: bool = false,
+
+    /// Disable automatic paging of output.
+    @"no-pager": bool = false,
+
+    pub fn deinit(self: Options) void {
+        _ = self;
+    }
+
+    /// Enables `-h` and `--help` to work.
+    pub fn help(self: Options) !void {
+        _ = self;
+        return Action.help_error;
+    }
+};
+
+/// The `show-config` command shows the current configuration in a valid Ghostty
+/// configuration file format.
+///
+/// When executed without any arguments this will output the current
+/// configuration that is different from the default configuration. If you're
+/// using the default configuration this will output nothing.
+///
+/// If you are a new user and want to see all available options with
+/// documentation, run `ghostty +show-config --default --docs`.
+///
+/// The output is not in any specific order, but the order should be consistent
+/// between runs. The output is not guaranteed to be exactly match the input
+/// configuration files, but it will result in the same behavior. Comments,
+/// whitespace, and other formatting is not preserved from user configuration
+/// files.
+///
+/// Flags:
+///
+///   * `--default`: Show the default configuration instead of loading
+///     the user configuration.
+///
+///   * `--changes-only`: Only show the options that have been changed
+///     from the default. This has no effect if `--default` is specified.
+///
+///   * `--docs`: Print the documentation above each option as a comment,
+///     This is very noisy but is very useful to learn about available
+///     options, especially paired with `--default`.
+///
+///   * `--no-pager`: Disable automatic paging of output.
+pub fn run(alloc: Allocator) !u8 {
+    var opts: Options = .{};
+    defer opts.deinit();
+
+    {
+        var iter = try args.argsIterator(alloc);
+        defer iter.deinit();
+        try args.parse(Options, alloc, &opts, &iter);
+    }
+
+    var config = if (opts.default) try Config.default(alloc) else try Config.load(alloc);
+    defer config.deinit();
+
+    const configfmt: configpkg.FileFormatter = .{
+        .alloc = alloc,
+        .config = &config,
+        .changed = !opts.default and opts.@"changes-only",
+        .docs = opts.docs,
+    };
+
+    var pager: Pager = if (!opts.@"no-pager") .init(alloc) else .{};
+    defer pager.deinit();
+    var buffer: [4096]u8 = undefined;
+    const writer = pager.writer(&buffer);
+
+    try configfmt.format(writer);
+    try writer.flush();
+    return 0;
+}