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Shell: Allow the user to set the prompt using PROMPT()

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This allows the prompt to be dynamically configurable, making it
possible to display various bits of information in the prompt.
This commit is contained in:
Ali Mohammad Pur
2023-08-31 13:34:21 +03:30
committed by Andrew Kaster
parent 71ddc33fbf
commit 84777fbe62
3 changed files with 45 additions and 1 deletions
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16
Userland/Shell/Shell.cpp
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@@ -79,6 +79,9 @@ void Shell::print_path(StringView path)
DeprecatedString Shell::prompt() const
{
if (m_next_scheduled_prompt_text.has_value())
return m_next_scheduled_prompt_text.release_value();
auto build_prompt = [&]() -> DeprecatedString {
auto* ps1 = getenv("PROMPT");
if (!ps1) {
@@ -2086,9 +2089,22 @@ void Shell::setup_keybinds()
});
}
void Shell::set_user_prompt()
{
if (!has_function("PROMPT"sv))
return;
if (!m_prompt_command_node)
m_prompt_command_node = Parser { "shell_set_active_prompt -- ${join \"\\n\" $(PROMPT)}"sv }.parse();
(void)m_prompt_command_node->run(this);
}
bool Shell::read_single_line()
{
while (true) {
set_user_prompt();
restore_ios();
bring_cursor_to_beginning_of_a_line();
m_editor->initialize();