diff options
Diffstat (limited to 'helix-term/src/config.rs')
| -rw-r--r-- | helix-term/src/config.rs | 136 |
1 files changed, 108 insertions, 28 deletions
diff --git a/helix-term/src/config.rs b/helix-term/src/config.rs index 4407a882..9776ef7a 100644 --- a/helix-term/src/config.rs +++ b/helix-term/src/config.rs @@ -1,27 +1,34 @@ -use crate::keymap::{default::default, merge_keys, Keymap}; +use crate::keymap; +use crate::keymap::{merge_keys, Keymap}; +use helix_loader::merge_toml_values; use helix_view::document::Mode; use serde::Deserialize; use std::collections::HashMap; use std::fmt::Display; +use std::fs; use std::io::Error as IOError; -use std::path::PathBuf; use toml::de::Error as TomlError; -#[derive(Debug, Clone, PartialEq, Deserialize)] -#[serde(deny_unknown_fields)] +#[derive(Debug, Clone, PartialEq)] pub struct Config { pub theme: Option<String>, - #[serde(default = "default")] pub keys: HashMap<Mode, Keymap>, - #[serde(default)] pub editor: helix_view::editor::Config, } +#[derive(Debug, Clone, PartialEq, Deserialize)] +#[serde(deny_unknown_fields)] +pub struct ConfigRaw { + pub theme: Option<String>, + pub keys: Option<HashMap<Mode, Keymap>>, + pub editor: Option<toml::Value>, +} + impl Default for Config { fn default() -> Config { Config { theme: None, - keys: default(), + keys: keymap::default(), editor: helix_view::editor::Config::default(), } } @@ -33,6 +40,12 @@ pub enum ConfigLoadError { Error(IOError), } +impl Default for ConfigLoadError { + fn default() -> Self { + ConfigLoadError::Error(IOError::new(std::io::ErrorKind::NotFound, "place holder")) + } +} + impl Display for ConfigLoadError { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { match self { @@ -43,17 +56,72 @@ impl Display for ConfigLoadError { } impl Config { - pub fn load(config_path: PathBuf) -> Result<Config, ConfigLoadError> { - match std::fs::read_to_string(config_path) { - Ok(config) => toml::from_str(&config) - .map(merge_keys) - .map_err(ConfigLoadError::BadConfig), - Err(err) => Err(ConfigLoadError::Error(err)), - } + pub fn load( + global: Result<String, ConfigLoadError>, + local: Result<String, ConfigLoadError>, + ) -> Result<Config, ConfigLoadError> { + let global_config: Result<ConfigRaw, ConfigLoadError> = + global.and_then(|file| toml::from_str(&file).map_err(ConfigLoadError::BadConfig)); + let local_config: Result<ConfigRaw, ConfigLoadError> = + local.and_then(|file| toml::from_str(&file).map_err(ConfigLoadError::BadConfig)); + let res = match (global_config, local_config) { + (Ok(global), Ok(local)) => { + let mut keys = keymap::default(); + if let Some(global_keys) = global.keys { + merge_keys(&mut keys, global_keys) + } + if let Some(local_keys) = local.keys { + merge_keys(&mut keys, local_keys) + } + + let editor = match (global.editor, local.editor) { + (None, None) => helix_view::editor::Config::default(), + (None, Some(val)) | (Some(val), None) => { + val.try_into().map_err(ConfigLoadError::BadConfig)? + } + (Some(global), Some(local)) => merge_toml_values(global, local, 3) + .try_into() + .map_err(ConfigLoadError::BadConfig)?, + }; + + Config { + theme: local.theme.or(global.theme), + keys, + editor, + } + } + // if any configs are invalid return that first + (_, Err(ConfigLoadError::BadConfig(err))) + | (Err(ConfigLoadError::BadConfig(err)), _) => { + return Err(ConfigLoadError::BadConfig(err)) + } + (Ok(config), Err(_)) | (Err(_), Ok(config)) => { + let mut keys = keymap::default(); + if let Some(keymap) = config.keys { + merge_keys(&mut keys, keymap); + } + Config { + theme: config.theme, + keys, + editor: config.editor.map_or_else( + || Ok(helix_view::editor::Config::default()), + |val| val.try_into().map_err(ConfigLoadError::BadConfig), + )?, + } + } + // these are just two io errors return the one for the global config + (Err(err), Err(_)) => return Err(err), + }; + + Ok(res) } pub fn load_default() -> Result<Config, ConfigLoadError> { - Config::load(helix_loader::config_file()) + let global_config = + fs::read_to_string(helix_loader::config_file()).map_err(ConfigLoadError::Error); + let local_config = fs::read_to_string(helix_loader::workspace_config_file()) + .map_err(ConfigLoadError::Error); + Config::load(global_config, local_config) } } @@ -61,6 +129,12 @@ impl Config { mod tests { use super::*; + impl Config { + fn load_test(config: &str) -> Config { + Config::load(Ok(config.to_owned()), Err(ConfigLoadError::default())).unwrap() + } + } + #[test] fn parsing_keymaps_config_file() { use crate::keymap; @@ -77,18 +151,24 @@ mod tests { A-F12 = "move_next_word_end" "#; + let mut keys = keymap::default(); + merge_keys( + &mut keys, + hashmap! { + Mode::Insert => Keymap::new(keymap!({ "Insert mode" + "y" => move_line_down, + "S-C-a" => delete_selection, + })), + Mode::Normal => Keymap::new(keymap!({ "Normal mode" + "A-F12" => move_next_word_end, + })), + }, + ); + assert_eq!( - toml::from_str::<Config>(sample_keymaps).unwrap(), + Config::load_test(sample_keymaps), Config { - keys: hashmap! { - Mode::Insert => Keymap::new(keymap!({ "Insert mode" - "y" => move_line_down, - "S-C-a" => delete_selection, - })), - Mode::Normal => Keymap::new(keymap!({ "Normal mode" - "A-F12" => move_next_word_end, - })), - }, + keys, ..Default::default() } ); @@ -97,11 +177,11 @@ mod tests { #[test] fn keys_resolve_to_correct_defaults() { // From serde default - let default_keys = toml::from_str::<Config>("").unwrap().keys; - assert_eq!(default_keys, default()); + let default_keys = Config::load_test("").keys; + assert_eq!(default_keys, keymap::default()); // From the Default trait let default_keys = Config::default().keys; - assert_eq!(default_keys, default()); + assert_eq!(default_keys, keymap::default()); } } |