added process spawning

src/keymap.zig

@@ -23,9 +23,10 @@ pub fn callback(self: *const Keymap) void {
   const t = Lua.state.rawGetIndex(zlua.registry_index, self.lua_ref_idx);
   if (t != zlua.LuaType.function) {
     std.log.err("Failed to call keybind, it doesn't have a callback.", .{});
+    Lua.state.pop(1);
     return;
   }
-  Lua.state.pushValue(1);
+
   Lua.state.call(.{ .args = 0, .results = 0 });
   Lua.state.pop(-1);
 }

src/lua/api.zig

@@ -1,7 +1,6 @@
 const Api = @This();
 
 const std = @import("std");
-const server = &@import("../main.zig").server;
 const Keymap = @import("../keymap.zig");
 
 const zlua = @import("zlua");
@@ -9,9 +8,12 @@ const xkb = @import("xkbcommon");
 const wlr = @import("wlroots");
 
 const gpa = std.heap.c_allocator;
+const server = &@import("../main.zig").server;
+const env_map = &@import("../main.zig").env_map;
 
 pub fn add_keymap(L: *zlua.Lua) i32 {
   const nargs: i32 = L.getTop();
+
   if (nargs < 3) {
     L.raiseErrorStr("Expected at least three arguments", .{});
     return 0;
@@ -23,6 +25,9 @@ pub fn add_keymap(L: *zlua.Lua) i32 {
   L.checkType(3, .function);
 
   var keymap: Keymap = undefined;
+  keymap.options = .{
+    .on_release = false,
+  };
 
   const mod = L.toString(1) catch {
     L.raiseErrorStr("Lua error check your config", .{});
@@ -89,3 +94,27 @@ pub fn get_keybind(L: *zlua.Lua) i32 {
   _ = L;
   return 0;
 }
+
+pub fn spawn(L: *zlua.Lua) i32 {
+  const nargs: i32 = L.getTop();
+
+  if (nargs < 1) {
+    L.raiseErrorStr("Expected at least one arguments", .{});
+    return 0;
+  }
+
+  L.checkType(1, .string);
+
+  const cmd = L.toString(1) catch {
+    L.raiseErrorStr("Lua error check your config", .{});
+    return 0;
+  };
+
+  var child = std.process.Child.init(&[_][]const u8{ "/bin/sh", "-c", cmd }, gpa);
+  child.env_map = env_map;
+  child.spawn() catch {
+    std.log.err("Unable to spawn process \"{s}\"", .{cmd});
+  };
+
+  return 0;
+}

src/main.zig

@@ -8,6 +8,7 @@ const gpa = std.heap.c_allocator;
 
 pub var server: Server = undefined;
 pub var lua: Lua = undefined;
+pub var env_map: std.process.EnvMap = undefined;
 
 pub fn main() !void {
   wlr.log.init(.err, null);
@@ -21,15 +22,16 @@ pub fn main() !void {
   var buf: [11]u8 = undefined;
   const socket = try server.wl_server.addSocketAuto(&buf);
 
+  env_map = try std.process.getEnvMap(gpa);
+  try env_map.put("WAYLAND_DISPLAY", socket);
+
   if (std.os.argv.len >= 2) {
     const cmd = std.mem.span(std.os.argv[1]);
     var child = std.process.Child.init(&[_][]const u8{ "/bin/sh", "-c", cmd }, gpa);
-    var env_map = try std.process.getEnvMap(gpa);
-    defer env_map.deinit();
-    try env_map.put("WAYLAND_DISPLAY", socket);
     child.env_map = &env_map;
     try child.spawn();
   }
+  defer env_map.deinit();
 
   std.log.info("Starting backend", .{});
   server.backend.start() catch |err| {