use std::env; use std::ffi::OsString; use std::io::ErrorKind; use std::process; use std::process::Stdio; use std::str::FromStr; use crate::config::ModuleConfig; use crate::config::StarshipConfig; use crate::configs::PROMPT_ORDER; use crate::utils; use std::fs::File; use std::io::Write; use toml_edit::Document; #[cfg(not(windows))] const STD_EDITOR: &str = "vi"; #[cfg(windows)] const STD_EDITOR: &str = "notepad.exe"; pub fn update_configuration(name: &str, value: &str) { let mut doc = get_configuration_edit(); match handle_update_configuration(&mut doc, name, value) { Err(e) => { eprintln!("{e}"); process::exit(1); } _ => write_configuration(&doc), } } fn handle_update_configuration(doc: &mut Document, name: &str, value: &str) -> Result<(), String> { let mut keys = name.split('.'); let first_key = keys.next().unwrap_or_default(); if first_key.is_empty() { return Err("Empty table keys are not supported".to_owned()); } let table = doc.as_table_mut(); let mut current_item = table.entry(first_key).or_insert_with(toml_edit::table); for key in keys { if !current_item.is_table_like() { return Err("This command can only index into TOML tables".to_owned()); } if key.is_empty() { return Err("Empty table keys are not supported".to_owned()); } let table = current_item.as_table_like_mut().unwrap(); if !table.contains_key(key) { table.insert(key, toml_edit::table()); } current_item = table.get_mut(key).unwrap(); } let mut new_value = toml_edit::Value::from_str(value) .map_or_else(|_| toml_edit::value(value), toml_edit::Item::Value); if let Some(value) = current_item.as_value() { *new_value.as_value_mut().unwrap().decor_mut() = value.decor().clone(); } *current_item = new_value; Ok(()) } pub fn print_configuration(use_default: bool, paths: &[String]) { let config = if use_default { // Get default config let default_config = crate::configs::FullConfig::default(); // Convert back to Value because toml can't serialize FullConfig directly toml::value::Value::try_from(default_config).unwrap() } else { // Get config as toml::Value let user_config = get_configuration(); // Convert into FullConfig and fill in default values let user_config = crate::configs::FullConfig::load(&user_config); // Convert back to Value because toml can't serialize FullConfig directly toml::value::Value::try_from(user_config).unwrap() }; println!("# Warning: This config does not include keys that have an unset value\n"); // These are only used for format specifiers so don't print them if we aren't showing formats. if paths.is_empty() || paths .iter() .any(|path| path == "format" || path == "right_format") { println!( "# $all is shorthand for {}", PROMPT_ORDER .iter() .map(|module_name| format!("${module_name}")) .collect::() ); // Unwrapping is fine because config is based on FullConfig let custom_modules = config.get("custom").unwrap().as_table().unwrap(); if !use_default && !custom_modules.is_empty() { println!( "# $custom (excluding any modules already listed in `format`) is shorthand for {}", custom_modules .keys() .map(|module_name| format!("${{custom.{module_name}}}")) .collect::() ); } } let print_config = if paths.is_empty() { config } else { extract_toml_paths(config, paths) }; let string_config = toml::to_string_pretty(&print_config).unwrap(); println!("{string_config}"); } fn extract_toml_paths(mut config: toml::Value, paths: &[String]) -> toml::Value { // Extract all the requested sections into a new configuration. let mut subset = toml::value::Table::new(); let Some(config) = config.as_table_mut() else { // This function doesn't make any sense if the root is not a table. return toml::Value::Table(subset); }; 'paths: for path in paths { let path_segments: Vec<_> = path.split('.').collect(); let (&end, parents) = path_segments.split_last().unwrap_or((&"", &[])); // Locate the parent table to remove the value from. let mut source_cursor = &mut *config; for &segment in parents { source_cursor = if let Some(child) = source_cursor .get_mut(segment) .and_then(toml::Value::as_table_mut) { child } else { // We didn't find a value for this path, so move on to the next path. continue 'paths; } } // Extract the value to move. let Some(value) = source_cursor.remove(end) else { // We didn't find a value for this path, so move on to the next path. continue 'paths; }; // Create a destination for that value. let mut destination_cursor = &mut subset; for &segment in &path_segments[..path_segments.len() - 1] { // Because we initialize `subset` to be a table, and only add additional values that // exist in `config`, it's impossible for the value here to not be a table. destination_cursor = destination_cursor .entry(segment) .or_insert_with(|| toml::Value::Table(toml::value::Table::new())) .as_table_mut() .unwrap(); } destination_cursor.insert(end.to_owned(), value); } toml::Value::Table(subset) } pub fn toggle_configuration(name: &str, key: &str) { let mut doc = get_configuration_edit(); match handle_toggle_configuration(&mut doc, name, key) { Err(e) => { eprintln!("{e}"); process::exit(1); } _ => write_configuration(&doc), } } fn handle_toggle_configuration(doc: &mut Document, name: &str, key: &str) -> Result<(), String> { if name.is_empty() || key.is_empty() { return Err("Empty table keys are not supported".to_owned()); } let table = doc.as_table_mut(); let values = table .get_mut(name) .ok_or_else(|| format!("Given module '{name}' not found in config file"))? .as_table_like_mut() .ok_or_else(|| format!("Given config entry '{key}' is not a module"))?; let old_value = values .get(key) .ok_or_else(|| format!("Given config key '{key}' must exist in config file"))?; let old = old_value .as_bool() .ok_or_else(|| format!("Given config key '{key}' must be in 'boolean' format"))?; let mut new_value = toml_edit::value(!old); // Above code already checks if it is a value (bool) *new_value.as_value_mut().unwrap().decor_mut() = old_value.as_value().unwrap().decor().clone(); values.insert(key, new_value); Ok(()) } pub fn get_configuration() -> toml::Table { let starship_config = StarshipConfig::initialize(); starship_config .config .expect("Failed to load starship config") } pub fn get_configuration_edit() -> Document { let file_path = get_config_path(); let toml_content = match utils::read_file(file_path) { Ok(content) => { log::trace!("Config file content: \"\n{}\"", &content); Some(content) } Err(e) => { let level = if e.kind() == ErrorKind::NotFound { log::Level::Debug } else { log::Level::Error }; log::log!(level, "Unable to read config file content: {}", &e); None } }; toml_content .unwrap_or_default() .parse::() .expect("Failed to load starship config") } pub fn write_configuration(doc: &Document) { let config_path = get_config_path(); let config_str = doc.to_string(); File::create(config_path) .and_then(|mut file| file.write_all(config_str.as_ref())) .expect("Error writing starship config"); } pub fn edit_configuration(editor_override: Option<&str>) -> Result<(), Box> { // Argument currently only used for testing, but could be used to specify // an editor override on the command line. let config_path = get_config_path(); let editor_cmd = shell_words::split(&get_editor(editor_override))?; let mut command = match utils::create_command(&editor_cmd[0]) { Ok(cmd) => cmd, Err(e) => { eprintln!( "Unable to find editor {:?}. Are $VISUAL and $EDITOR set correctly?", editor_cmd[0] ); return Err(Box::new(e)); } }; let res = command .stdin(Stdio::inherit()) .stdout(Stdio::inherit()) .stderr(Stdio::inherit()) .args(&editor_cmd[1..]) .arg(config_path) .status(); if let Err(e) = res { eprintln!("Unable to launch editor {editor_cmd:?}"); return Err(Box::new(e)); } Ok(()) } fn get_editor(editor_override: Option<&str>) -> String { if let Some(cmd) = editor_override { cmd.to_string() } else { get_editor_internal(std::env::var("VISUAL").ok(), std::env::var("EDITOR").ok()) } } fn get_editor_internal(visual: Option, editor: Option) -> String { let editor_name = visual.unwrap_or_default(); if !editor_name.is_empty() { return editor_name; } let editor_name = editor.unwrap_or_default(); if !editor_name.is_empty() { return editor_name; } STD_EDITOR.into() } fn get_config_path() -> OsString { if let Some(config_path) = env::var_os("STARSHIP_CONFIG") { return config_path; } utils::home_dir() .expect("couldn't find home directory") .join(".config") .join("starship.toml") .into() } #[cfg(test)] mod tests { use super::*; // This is every possible permutation, 3² = 9. #[test] fn visual_set_editor_set() { let actual = get_editor_internal(Some("foo".into()), Some("bar".into())); assert_eq!("foo", actual); } #[test] fn visual_set_editor_empty() { let actual = get_editor_internal(Some("foo".into()), None); assert_eq!("foo", actual); } #[test] fn visual_set_editor_not_set() { let actual = get_editor_internal(Some("foo".into()), None); assert_eq!("foo", actual); } #[test] fn visual_empty_editor_set() { let actual = get_editor_internal(Some(String::new()), Some("bar".into())); assert_eq!("bar", actual); } #[test] fn visual_empty_editor_empty() { let actual = get_editor_internal(Some(String::new()), Some(String::new())); assert_eq!(STD_EDITOR, actual); } #[test] fn visual_empty_editor_not_set() { let actual = get_editor_internal(Some(String::new()), None); assert_eq!(STD_EDITOR, actual); } #[test] fn visual_not_set_editor_set() { let actual = get_editor_internal(None, Some("bar".into())); assert_eq!("bar", actual); } #[test] fn visual_not_set_editor_empty() { let actual = get_editor_internal(None, Some(String::new())); assert_eq!(STD_EDITOR, actual); } #[test] fn visual_not_set_editor_not_set() { let actual = get_editor_internal(None, None); assert_eq!(STD_EDITOR, actual); } #[test] fn no_panic_when_editor_unparsable() { let outcome = edit_configuration(Some("\"vim")); assert!(outcome.is_err()); } #[test] fn no_panic_when_editor_not_found() { let outcome = edit_configuration(Some("this_editor_does_not_exist")); assert!(outcome.is_err()); } #[test] fn test_extract_toml_paths() { let config = toml::toml! { extract_root = true ignore_root = false [extract_section] ok = true [extract_section.subsection] ok = true [ignore_section] ok = false [extract_subsection] ok = false [extract_subsection.extracted] ok = true [extract_subsection.ignored] ok = false }; let expected_config = toml::toml! { extract_root = true [extract_section] ok = true [extract_section.subsection] ok = true [extract_subsection.extracted] ok = true }; let actual_config = extract_toml_paths( toml::Value::Table(config), &[ "extract_root".to_owned(), "extract_section".to_owned(), "extract_subsection.extracted".to_owned(), ], ); assert_eq!(toml::Value::Table(expected_config), actual_config); } fn create_doc() -> Document { let config = concat!( " # comment\n", " [status] # comment\n", "disabled = false # comment\n", "# comment\n", "\n" ); config.parse::().unwrap() } #[test] fn test_toggle_simple() { let mut doc = create_doc(); assert!(!doc["status"]["disabled"].as_bool().unwrap()); handle_toggle_configuration(&mut doc, "status", "disabled").unwrap(); assert!(doc["status"]["disabled"].as_bool().unwrap()); let new_config = concat!( " # comment\n", " [status] # comment\n", "disabled = true # comment\n", "# comment\n", "\n" ); assert_eq!(doc.to_string(), new_config) } #[test] fn test_toggle_missing_module() { let mut doc = create_doc(); assert!(handle_toggle_configuration(&mut doc, "missing_module", "disabled").is_err()); } #[test] fn test_toggle_missing_key() { let mut doc = create_doc(); assert!(handle_toggle_configuration(&mut doc, "status", "missing").is_err()); } #[test] fn test_toggle_wrong_type() { let mut doc = create_doc(); doc["status"]["disabled"] = toml_edit::value("a"); assert!(handle_toggle_configuration(&mut doc, "status", "disabled").is_err()); doc["format"] = toml_edit::value("$all"); assert!(handle_toggle_configuration(&mut doc, "format", "disabled").is_err()); } #[test] fn test_toggle_empty() { let mut doc = create_doc(); doc["status"][""] = toml_edit::value(true); doc[""]["disabled"] = toml_edit::value(true); assert!(handle_toggle_configuration(&mut doc, "status", "").is_err()); assert!(handle_toggle_configuration(&mut doc, "", "disabled").is_err()); } #[test] fn test_update_config_wrong_type() { let mut doc = create_doc(); assert!( handle_update_configuration(&mut doc, "status.disabled.not_a_table", "true").is_err() ); } #[test] fn test_update_config_simple() { let mut doc = create_doc(); assert!(!doc["status"]["disabled"].as_bool().unwrap()); handle_update_configuration(&mut doc, "status.disabled", "true").unwrap(); assert!(doc["status"]["disabled"].as_bool().unwrap()); let new_config = concat!( " # comment\n", " [status] # comment\n", "disabled = true # comment\n", "# comment\n", "\n" ); assert_eq!(doc.to_string(), new_config) } #[test] fn test_update_config_parse() { let mut doc = create_doc(); handle_update_configuration(&mut doc, "test", "true").unwrap(); assert!(doc["test"].as_bool().unwrap()); handle_update_configuration(&mut doc, "test", "0").unwrap(); assert_eq!(doc["test"].as_integer().unwrap(), 0); handle_update_configuration(&mut doc, "test", "0.0").unwrap(); assert!(doc["test"].is_float()); handle_update_configuration(&mut doc, "test", "a string").unwrap(); assert_eq!(doc["test"].as_str().unwrap(), "a string"); handle_update_configuration(&mut doc, "test", "\"true\"").unwrap(); assert_eq!(doc["test"].as_str().unwrap(), "true"); } #[test] fn test_update_config_empty() { let mut doc = create_doc(); assert!(handle_update_configuration(&mut doc, "", "true").is_err()); assert!(handle_update_configuration(&mut doc, ".....", "true").is_err()); assert!(handle_update_configuration(&mut doc, "a.a.a..a.a", "true").is_err()); assert!(handle_update_configuration(&mut doc, "a.a.a.a.a.", "true").is_err()); assert!(handle_update_configuration(&mut doc, ".a.a.a.a.a", "true").is_err()); } #[test] fn test_update_config_deep() { let mut doc = create_doc(); handle_update_configuration(&mut doc, "a.b.c.d.e.f.g.h", "true").unwrap(); assert!(doc["a"]["b"]["c"]["d"]["e"]["f"]["g"]["h"] .as_bool() .unwrap()) } }