Create process, poll and send output to console buffer

src/basic/basic.h

@@ -208,14 +208,14 @@ For(arr.reverse_iter()) {
 }
 */
 #define IterRemove(a) for (int i = 0; i < (a).len; i += 1)
-#define IterRemovePrepare(a)        \
-    auto &it          = (a)[i];     \
-    bool  remove_item = false;      \
-    defer {                         \
-        if (remove_item) {          \
-            (a).ordered_remove(it); \
-            i -= 1;                 \
-        }                           \
+#define IterRemovePrepare(a)    \
+    auto &it          = (a)[i]; \
+    bool  remove_item = false;  \
+    defer {                     \
+        if (remove_item) {      \
+            Remove(&(a), it);   \
+            i -= 1;             \
+        }                       \
     }
 #define ForItem(it, array) for (auto &it : (array))
 #define For(array) ForItem(it, array)

src/basic/filesystem.h

@@ -46,7 +46,7 @@ struct Process {
     char   platform[6 * 8];
 };
 
-Process        RunCmd(String command_line, String working_dir);
+Process        CreateCommandLineProcess(String command_line, String working_dir);
 bool           WaitForExit(Process *process);
 bool           PollExitCode(Process *process);
 void           KillProcess(Process *process);

src/basic/win32.cpp

@@ -318,7 +318,7 @@ static void Win32ProcessError(Process *process, String cmd) {
     Win32CloseProcess(process);
 }
 
-Process RunCmd(String command_line, String working_dir) {
+Process CreateCommandLineProcess(String command_line, String working_dir) {
     Process       process = {};
     Win32Process *p       = (Win32Process *)process.platform;
 

src/text_editor/commands.cpp

@@ -465,11 +465,13 @@ void AppendToConsole(String16 string) {
     View *view = FindView(buffer->id);
     Assert(view);
 
-    Array<Caret> caret_copy = Copy(GetSystemAllocator(), view->carets);
-    defer {
-        Dealloc(&view->carets);
-        view->carets = caret_copy;
-    };
+    // @todo: this prevents scrolling to end. what do we do with this? I want to adjust the
+    // cursor etc.
+    // Array<Caret> caret_copy = Copy(GetSystemAllocator(), view->carets);
+    // defer {
+    //     Dealloc(&view->carets);
+    //     view->carets = caret_copy;
+    // };
 
     bool scroll_to_end = false;
     if (view) {

src/text_editor/commands_window.cpp

@@ -887,6 +887,8 @@ void WindowCommand(Event event, Window *window, View *view) {
         if (GetSize(caret.range) == 0) range = EncloseExecWord(buffer, GetFront(caret));
         String16 string = GetString(*buffer, range);
         Command_EvalLua(view, string);
+
+        // Exec(string, GetCurrentBufferDir());
     }
 
     if (Ctrl(SDLK_W)) {

src/text_editor/process.cpp

@@ -0,0 +1,27 @@
+Array<Process> ActiveProcesses = {};
+
+void Exec(String cmd, String working_dir) {
+    Process process = CreateCommandLineProcess(cmd, working_dir);
+    if (process.is_valid) Add(&ActiveProcesses, process);
+}
+
+void Exec(String16 cmd16, String working_dir) {
+    Scratch scratch;
+    String  cmd = ToString(scratch, cmd16);
+    Exec(cmd, working_dir);
+}
+
+void Process_OnUpdate() {
+    Scratch scratch;
+    int64_t buffer_size = 4096;
+    char   *buffer      = AllocArray(scratch, char, buffer_size);
+    IterRemove(ActiveProcesses) {
+        IterRemovePrepare(ActiveProcesses);
+        StdoutPollInfo info   = PollStdout(&it, buffer, buffer_size);
+        String         string = {buffer, info.size_read};
+        if (string.len) AppendToConsole(string);
+
+        bool exited = PollExitCode(&it);
+        if (exited) remove_item = true;
+    }
+}

src/text_editor/text_editor.cpp

@@ -33,6 +33,7 @@ int         FullScreenPositionX, FullScreenPositionY;
 
 #include "management.cpp"
 #include "window.cpp"
+#include "process.cpp"
 #include "commands.cpp"
 #include "commands_clipboard.cpp"
 #include "commands_window.cpp"
@@ -164,6 +165,7 @@ void Update(Event event) {
 
     HandleEvent(event);
 
+    Process_OnUpdate();
     ReloadLuaConfig();
     ReplaceDebugData();
 
@@ -237,7 +239,7 @@ int main()
         SDL_free(sdl_config_path.data);
     }
 
-    // Process process = RunCmd("git log", WorkingDir);
+    // Process process = CreateCommandLineProcess("git log", WorkingDir);
     // Scratch scratch;
     // char   *buffer = AllocArray(scratch, char, 4096);
     // for (int i = 0; i < 4; i += 1) {
@@ -313,7 +315,7 @@ int main()
         }
 
         WaitForEvents = true;
-        if (DocumentSelected || ScrollbarSelected) {
+        if (DocumentSelected || ScrollbarSelected || ActiveProcesses.len) {
             WaitForEvents = false;
         }
 

src/text_editor/text_editor.h

@@ -125,5 +125,6 @@ void Command_SelectEntireBuffer(View *view);
 void Command_Replace(View *view, String16 string);
 void Command_SelectRangeOneCursor(View *view, Range range);
 
+void AppendToConsole(String string);
 void ReportErrorf(const char *fmt, ...);
 void ReportWarningf(const char *fmt, ...);