Run shell cmd

CHANGELOG.md

@@ -1,5 +1,6 @@
 ### main / head
 
+* Implement `;!` to execute a shell command from the command bar
 * Disabled continuous deployment in GHA. See `.github/workflows/build_artifact.yml`
 for details
 

src/controller.cpp

@@ -515,6 +515,24 @@ bool Controller::parse_command() {
     // Empty command
     if (cmd.size() < 2) { return false; }
 
+    // Run shell command
+    if (cmd.at(1) == '!') {
+        const std::optional<Response> opt_resp = shell_exec(cmd.substr(2, cmd.size()));
+        if (!opt_resp.has_value()) { return false; }
+        const Response resp = opt_resp.value();
+        if (resp.out.size()) {
+            std::size_t nlPos = resp.out.find('\n');
+            std::string msg = (nlPos == std::string::npos) ? resp.out : resp.out.substr(0, nlPos);
+            view.display_message(msg, rawterm::Colors::green);
+        } else {
+            std::size_t nlPos = resp.err.find('\n');
+            std::string msg = (nlPos == std::string::npos) ? resp.err : resp.err.substr(0, nlPos);
+            view.display_message(msg, rawterm::Colors::red);
+        }
+
+        return false;
+    }
+
     if (std::isdigit(cmd.at(1))) {
         const unsigned int offset = uint32_t(std::stoi(cmd.substr(1, cmd.size())));
         view.set_current_line(offset);

src/view.cpp

@@ -336,6 +336,7 @@ const std::string View::render_status_bar() const {
     return prev_pos;
 }
 
+// TODO: Modify this to take a string_view instead
 void View::display_message(std::string msg, std::optional<rawterm::Color> color) {
     rawterm::Pos prev_pos = cur;
     cur.move({view_size.vertical, 1});

tests/integration/command_mode_test.py

@@ -24,7 +24,7 @@ def test_quit_with_modified_buffer(r: TmuxRunner):
     r.iris_cmd("q")
     err_line: str = r.color_screenshot()[-1]
     assert "Unsaved changes. Use `;q!` to discard" in err_line
-    assert "\x1b[49m" in err_line  # red text
+    assert "255;0;0" in err_line  # red text
 
 
 @setup("tests/fixture/test_file_2.txt", multi_file=True)
@@ -399,3 +399,19 @@ def test_find_next_str_repeat_input_command(r: TmuxRunner):
     r.iris_cmd("f")
     r.await_cursor_pos(12, 10)
     assert r.await_statusbar_parts()[-1] == "46:7"
+
+
+@setup()
+def test_run_shell_cmd_stdout(r: TmuxRunner):
+    r.iris_cmd("!echo 'hello'")
+    msg: str = r.color_screenshot()[-1]
+    assert "hello" in msg
+    assert "0;128;0" in msg  # green text
+
+
+@setup()
+def test_run_shell_cmd_stderr(r: TmuxRunner):
+    r.iris_cmd("!echo 'hello' 1>&2")
+    msg: str = r.color_screenshot()[-1]
+    assert "hello" in msg
+    assert "255;0;0" in msg  # red text