use std::fmt::{Display, Formatter}; use schemars::JsonSchema;use serde::{Deserialize, Serialize};use settings::{Settings, SettingsSources}; /// Base key bindings scheme. Base keymaps can be overridden with user keymaps.////// Default: VSCode#[derive(Copy, Clone, Debug, Serialize, Deserialize, JsonSchema, PartialEq, Eq, Default)]pub enum BaseKeymap {    #[default]    VSCode,    JetBrains,    SublimeText,    Atom,    TextMate,    Emacs,    None,} impl Display for BaseKeymap {    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {        match self {            BaseKeymap::VSCode => write!(f, "VSCode"),            BaseKeymap::JetBrains => write!(f, "JetBrains"),            BaseKeymap::SublimeText => write!(f, "Sublime Text"),            BaseKeymap::Atom => write!(f, "Atom"),            BaseKeymap::TextMate => write!(f, "TextMate"),            BaseKeymap::Emacs => write!(f, "Emacs (beta)"),            BaseKeymap::None => write!(f, "None"),        }    }} impl BaseKeymap {    #[cfg(target_os = "macos")]    pub const OPTIONS: [(&'static str, Self); 6] = [        ("VSCode (Default)", Self::VSCode),        ("Atom", Self::Atom),        ("JetBrains", Self::JetBrains),        ("Sublime Text", Self::SublimeText),        ("Emacs (beta)", Self::Emacs),        ("TextMate", Self::TextMate),    ];     #[cfg(not(target_os = "macos"))]    pub const OPTIONS: [(&'static str, Self); 5] = [        ("VSCode (Default)", Self::VSCode),        ("Atom", Self::Atom),        ("JetBrains", Self::JetBrains),        ("Sublime Text", Self::SublimeText),        ("Emacs (beta)", Self::Emacs),    ];     pub fn asset_path(&self) -> Option<&'static str> {        #[cfg(target_os = "macos")]        match self {            BaseKeymap::JetBrains => Some("keymaps/macos/jetbrains.json"),            BaseKeymap::SublimeText => Some("keymaps/macos/sublime_text.json"),            BaseKeymap::Atom => Some("keymaps/macos/atom.json"),            BaseKeymap::TextMate => Some("keymaps/macos/textmate.json"),            BaseKeymap::Emacs => Some("keymaps/macos/emacs.json"),            BaseKeymap::VSCode => None,            BaseKeymap::None => None,        }         #[cfg(not(target_os = "macos"))]        match self {            BaseKeymap::JetBrains => Some("keymaps/linux/jetbrains.json"),            BaseKeymap::SublimeText => Some("keymaps/linux/sublime_text.json"),            BaseKeymap::Atom => Some("keymaps/linux/atom.json"),            BaseKeymap::Emacs => Some("keymaps/linux/emacs.json"),            BaseKeymap::TextMate => None,            BaseKeymap::VSCode => None,            BaseKeymap::None => None,        }    }     pub fn names() -> impl Iterator<Item = &'static str> {        Self::OPTIONS.iter().map(|(name, _)| *name)    }     pub fn from_names(option: &str) -> BaseKeymap {        Self::OPTIONS            .iter()            .copied()            .find_map(|(name, value)| (name == option).then_some(value))            .unwrap_or_default()    }} impl Settings for BaseKeymap {    const KEY: Option<&'static str> = Some("base_keymap");     type FileContent = Option<Self>;     fn load(        sources: SettingsSources<Self::FileContent>,        _: &mut gpui::App,    ) -> anyhow::Result<Self> {        if let Some(Some(user_value)) = sources.user.copied() {            return Ok(user_value);        }        if let Some(Some(server_value)) = sources.server.copied() {            return Ok(server_value);        }        sources.default.ok_or_else(Self::missing_default)    }}