Lua: Add onFinished callback to Process class

Change-Id: I98645f9d33842eb16b80e768523d63d660fe1813
Reviewed-by: Marcus Tillmanns <marcus.tillmanns@qt.io>

src/plugins/lua/bindings/qtcprocess.cpp

@@ -60,6 +60,7 @@ void setupProcessModule()
             const auto stdOut = parameter.get<std::optional<sol::function>>("stdout");
             const auto stdErr = parameter.get<std::optional<sol::function>>("stderr");
             const auto stdIn = parameter.get<sol::optional<QString>>("stdin");
+            const auto onFinished = parameter.get<std::optional<sol::function>>("onFinished");
 
             auto p = std::make_unique<Process>();
 
@@ -86,6 +87,16 @@ void setupProcessModule()
                     });
                 // clang-format on
             }
+
+            if (onFinished) {
+                // clang-format off
+                QObject::connect(p.get(), &Process::done,
+                    p.get(),
+                    [p = p.get(), cb = *onFinished]() {
+                        void_safe_call(cb);
+                    });
+                // clang-format on
+            }
             return p;
         };
 

src/plugins/lua/meta/process.lua

@@ -24,6 +24,7 @@ process.Process = {}
 ---@field stdin? string The input to write to stdin.
 ---@field stdout? function The callback to call when the process writes to stdout.
 ---@field stderr? function The callback to call when the process writes to stderr.
+---@field onFinished? function () The callback to call when the process finishes.
 process.ProcessParameters = {}
 
 ---Creates a new process object.