refactor: config

src/config/keymap/exec.rs

@@ -1,6 +1,6 @@
 use std::{collections::BTreeMap, fmt};
 
-use serde::{de::Visitor, Deserializer};
+use serde::{de::{self, Visitor}, Deserializer};
 
 #[derive(Debug, Default)]
 pub struct Exec {
@@ -44,7 +44,7 @@ impl Exec {
 
 			fn visit_seq<A>(self, mut seq: A) -> Result<Self::Value, A::Error>
 			where
-				A: serde::de::SeqAccess<'de>,
+				A: de::SeqAccess<'de>,
 			{
 				let mut execs = Vec::new();
 				while let Some(value) = &seq.next_element::<String>()? {
@@ -55,7 +55,7 @@ impl Exec {
 
 			fn visit_str<E>(self, value: &str) -> Result<Self::Value, E>
 			where
-				E: serde::de::Error,
+				E: de::Error,
 			{
 				Ok(value.split(';').map(Exec::from).collect())
 			}

src/config/keymap/key.rs

@@ -1,7 +1,9 @@
+use anyhow::bail;
 use crossterm::event::{KeyCode, KeyEvent, KeyModifiers};
-use serde::{de::Visitor, Deserialize, Deserializer};
+use serde::Deserialize;
 
-#[derive(Clone, Debug, PartialEq, Eq, Hash)]
+#[derive(Clone, Debug, Deserialize, PartialEq, Eq, Hash)]
+#[serde(try_from = "String")]
 pub struct Key {
 	pub code:  KeyCode,
 	pub shift: bool,
@@ -13,21 +15,36 @@ impl Default for Key {
 	fn default() -> Self { Self { code: KeyCode::Null, shift: false, ctrl: false, alt: false } }
 }
 
-impl From<&str> for Key {
-	fn from(value: &str) -> Self {
-		let mut key = Default::default();
-		if value.is_empty() {
-			return key;
+impl From<KeyEvent> for Key {
+	fn from(value: KeyEvent) -> Self {
+		let shift = if let KeyCode::Char(c) = value.code { c.is_ascii_uppercase() } else { false };
+
+		Self {
+			code:  value.code,
+			shift: shift || value.modifiers.contains(KeyModifiers::SHIFT),
+			ctrl:  value.modifiers.contains(KeyModifiers::CONTROL),
+			alt:   value.modifiers.contains(KeyModifiers::ALT),
+		}
+	}
+}
+
+impl TryFrom<String> for Key {
+	type Error = anyhow::Error;
+
+	fn try_from(s: String) -> Result<Self, Self::Error> {
+		if s.is_empty() {
+			bail!("empty key")
 		}
 
-		if !value.starts_with("<") || !value.ends_with(">") {
-			let c = value.chars().next().unwrap();
+		let mut key = Self::default();
+		if !s.starts_with("<") || !s.ends_with(">") {
+			let c = s.chars().next().unwrap();
 			key.code = KeyCode::Char(c);
 			key.shift = c.is_ascii_uppercase();
-			return key;
+			return Ok(key);
 		}
 
-		let mut it = value[1..value.len() - 1].split_inclusive('-').peekable();
+		let mut it = s[1..s.len() - 1].split_inclusive('-').peekable();
 		while let Some(x) = it.next() {
 			match x {
 				"S-" => key.shift = true,
@@ -65,48 +82,13 @@ impl From<&str> for Key {
 				c if it.peek().is_none() => {
 					key.code = KeyCode::Char(c.chars().next().unwrap());
 				}
-				_ => {}
-			}
-		}
-		key
-	}
-}
-
-impl From<KeyEvent> for Key {
-	fn from(value: KeyEvent) -> Self {
-		let shift = if let KeyCode::Char(c) = value.code { c.is_ascii_uppercase() } else { false };
-
-		Self {
-			code:  value.code,
-			shift: shift || value.modifiers.contains(KeyModifiers::SHIFT),
-			ctrl:  value.modifiers.contains(KeyModifiers::CONTROL),
-			alt:   value.modifiers.contains(KeyModifiers::ALT),
-		}
-	}
-}
-
-impl<'de> Deserialize<'de> for Key {
-	fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
-	where
-		D: Deserializer<'de>,
-	{
-		struct KeyVisitor;
-
-		impl<'de> Visitor<'de> for KeyVisitor {
-			type Value = Key;
-
-			fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
-				formatter.write_str("a key string, e.g. <C-a>")
-			}
-
-			fn visit_str<E>(self, value: &str) -> Result<Self::Value, E>
-			where
-				E: serde::de::Error,
-			{
-				Ok(Key::from(value))
+				k => bail!("unknown key: {}", k),
 			}
 		}
 
-		deserializer.deserialize_str(KeyVisitor)
+		if key.code == KeyCode::Null {
+			bail!("empty key")
+		}
+		Ok(key)
 	}
 }

src/config/keymap/keymap.rs

@@ -1,41 +1,52 @@
 use std::fs;
 
-use serde::Deserialize;
+use serde::{Deserialize, Deserializer};
 use xdg::BaseDirectories;
 
 use super::{Exec, Key};
 
-#[derive(Deserialize, Debug)]
+#[derive(Debug, Deserialize)]
 pub struct Single {
 	pub on:   Vec<Key>,
 	#[serde(deserialize_with = "Exec::deserialize")]
 	pub exec: Vec<Exec>,
 }
 
-#[derive(Deserialize, Debug)]
+#[derive(Debug)]
 pub struct Keymap {
 	pub manager: Vec<Single>,
 	pub tasks:   Vec<Single>,
 	pub input:   Vec<Single>,
 }
 
-impl Keymap {
-	pub fn new() -> Self {
+impl<'de> Deserialize<'de> for Keymap {
+	fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+	where
+		D: Deserializer<'de>,
+	{
+		#[derive(Deserialize)]
+		struct Shadow {
+			manager: Inner,
+			tasks:   Inner,
+			input:   Inner,
+		}
 		#[derive(Deserialize)]
 		struct Inner {
 			keymap: Vec<Single>,
 		}
 
-		#[derive(Deserialize)]
-		struct All {
-			manager: Inner,
-			tasks:   Inner,
-			input:   Inner,
-		}
-
-		let path = BaseDirectories::new().unwrap().get_config_file("yazi/keymap.toml");
-
-		let all: All = toml::from_str(&fs::read_to_string(path).unwrap()).unwrap();
-		Self { manager: all.manager.keymap, tasks: all.tasks.keymap, input: all.input.keymap }
+		let shadow = Shadow::deserialize(deserializer)?;
+		Ok(Self {
+			manager: shadow.manager.keymap,
+			tasks:   shadow.tasks.keymap,
+			input:   shadow.input.keymap,
+		})
+	}
+}
+
+impl Keymap {
+	pub fn new() -> Self {
+		let path = BaseDirectories::new().unwrap().get_config_file("yazi/keymap.toml");
+		toml::from_str(&fs::read_to_string(path).unwrap()).unwrap()
 	}
 }

src/config/manager/manager.rs

@@ -5,7 +5,7 @@ use xdg::BaseDirectories;
 
 use super::SortBy;
 
-#[derive(Deserialize, Debug)]
+#[derive(Debug, Deserialize)]
 pub struct Manager {
 	#[serde(skip)]
 	pub cwd:   PathBuf,

src/config/manager/sorting.rs

@@ -1,6 +1,8 @@
-use serde::{de::Visitor, Deserialize, Deserializer};
+use anyhow::bail;
+use serde::Deserialize;
 
-#[derive(Debug, Clone, Copy)]
+#[derive(Debug, Deserialize, Clone, Copy)]
+#[serde(try_from = "String")]
 pub enum SortBy {
 	Alphabetical,
 	Created,
@@ -8,39 +10,16 @@ pub enum SortBy {
 	Size,
 }
 
-impl From<&str> for SortBy {
-	fn from(value: &str) -> Self {
-		match value {
+impl TryFrom<String> for SortBy {
+	type Error = anyhow::Error;
+
+	fn try_from(s: String) -> Result<Self, Self::Error> {
+		Ok(match s.as_str() {
 			"created" => Self::Created,
 			"modified" => Self::Modified,
 			"size" => Self::Size,
-			_ => Self::Alphabetical,
-		}
-	}
-}
-
-impl<'de> Deserialize<'de> for SortBy {
-	fn deserialize<D>(deserializer: D) -> Result<SortBy, D::Error>
-	where
-		D: Deserializer<'de>,
-	{
-		struct SortByVisitor;
-
-		impl<'de> Visitor<'de> for SortByVisitor {
-			type Value = SortBy;
-
-			fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
-				formatter.write_str("a sort_by string, e.g. modified")
-			}
-
-			fn visit_str<E>(self, value: &str) -> Result<Self::Value, E>
-			where
-				E: serde::de::Error,
-			{
-				Ok(SortBy::from(value))
-			}
-		}
-
-		deserializer.deserialize_str(SortByVisitor)
+			"alphabetical" => Self::Alphabetical,
+			_ => bail!("invalid sort_by value: {}", s),
+		})
 	}
 }

src/config/open/mod.rs

@@ -1,3 +1,5 @@
 mod open;
+mod opener;
 
 pub use open::*;
+pub use opener::*;

src/config/open/open.rs

@@ -1,29 +1,18 @@
 use std::{collections::BTreeMap, fs, path::Path};
 
-use serde::Deserialize;
+use serde::{Deserialize, Deserializer};
 use xdg::BaseDirectories;
 
+use super::Opener;
 use crate::config::Pattern;
 
-#[derive(Clone, Deserialize, Debug, PartialEq, Eq, PartialOrd, Ord)]
-pub struct Opener {
-	pub cmd:    String,
-	pub args:   Vec<String>,
-	#[serde(default)]
-	pub block:  bool,
-	#[serde(skip)]
-	pub spread: bool,
-}
-
-#[derive(Deserialize, Debug)]
+#[derive(Debug)]
 pub struct Open {
-	#[serde(skip)]
 	openers: BTreeMap<String, Vec<Opener>>,
-
-	rules: Vec<OpenRule>,
+	rules:   Vec<OpenRule>,
 }
 
-#[derive(Deserialize, Debug)]
+#[derive(Debug, Deserialize)]
 struct OpenRule {
 	name: Option<Pattern>,
 	mime: Option<Pattern>,
@@ -32,23 +21,9 @@ struct OpenRule {
 }
 
 impl Open {
-	pub fn new() -> Open {
-		#[derive(Deserialize)]
-		struct Outer {
-			opener: BTreeMap<String, Vec<Opener>>,
-			open:   Open,
-		}
-
+	pub fn new() -> Self {
 		let path = BaseDirectories::new().unwrap().get_config_file("yazi/yazi.toml");
-		let mut outer = toml::from_str::<Outer>(&fs::read_to_string(path).unwrap()).unwrap();
-
-		for opener in outer.opener.values_mut() {
-			for one in opener.iter_mut() {
-				one.spread = one.args.iter().any(|a| a == "$*");
-			}
-		}
-
-		Self { openers: outer.opener, rules: outer.open.rules }
+		toml::from_str(&fs::read_to_string(path).unwrap()).unwrap()
 	}
 
 	pub fn opener(&self, path: &Path, mime: &str) -> Option<&Opener> {
@@ -63,3 +38,23 @@ impl Open {
 		})
 	}
 }
+
+impl<'de> Deserialize<'de> for Open {
+	fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+	where
+		D: Deserializer<'de>,
+	{
+		#[derive(Deserialize)]
+		struct Outer {
+			opener: BTreeMap<String, Vec<Opener>>,
+			open:   OuterOpen,
+		}
+		#[derive(Deserialize)]
+		struct OuterOpen {
+			rules: Vec<OpenRule>,
+		}
+
+		let outer = Outer::deserialize(deserializer)?;
+		Ok(Self { openers: outer.opener, rules: outer.open.rules })
+	}
+}

src/config/open/opener.rs

@@ -0,0 +1,31 @@
+use serde::{Deserialize, Deserializer};
+
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
+pub struct Opener {
+	pub cmd:    String,
+	pub args:   Vec<String>,
+	pub block:  bool,
+	pub spread: bool,
+}
+
+impl<'de> Deserialize<'de> for Opener {
+	fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+	where
+		D: Deserializer<'de>,
+	{
+		#[derive(Deserialize)]
+		pub struct Shadow {
+			pub cmd:    String,
+			pub args:   Vec<String>,
+			#[serde(default)]
+			pub block:  bool,
+			#[serde(skip)]
+			pub spread: bool,
+		}
+
+		let shadow = Shadow::deserialize(deserializer)?;
+
+		let spread = shadow.args.contains(&"$*".to_string());
+		Ok(Self { cmd: shadow.cmd, args: shadow.args, block: shadow.block, spread })
+	}
+}

src/config/pattern.rs

@@ -1,8 +1,9 @@
 use std::path::Path;
 
-use serde::{de::Visitor, Deserialize, Deserializer};
+use serde::Deserialize;
 
-#[derive(Debug)]
+#[derive(Debug, Deserialize)]
+#[serde(try_from = "String")]
 pub struct Pattern {
 	inner:     glob::Pattern,
 	is_folder: bool,
@@ -16,35 +17,17 @@ impl Pattern {
 	}
 }
 
-impl From<&str> for Pattern {
-	fn from(value: &str) -> Self {
-		let is_folder = value.ends_with('/');
-		Self { inner: glob::Pattern::new(value.trim_end_matches('/')).unwrap_or_default(), is_folder }
+impl TryFrom<&str> for Pattern {
+	type Error = anyhow::Error;
+
+	fn try_from(s: &str) -> Result<Self, Self::Error> {
+		let is_folder = s.ends_with('/');
+		Ok(Self { inner: glob::Pattern::new(s.trim_end_matches('/'))?, is_folder })
 	}
 }
 
-impl<'de> Deserialize<'de> for Pattern {
-	fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
-	where
-		D: Deserializer<'de>,
-	{
-		struct PatternVisitor;
+impl TryFrom<String> for Pattern {
+	type Error = anyhow::Error;
 
-		impl<'de> Visitor<'de> for PatternVisitor {
-			type Value = Pattern;
-
-			fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
-				formatter.write_str("a glob pattern, e.g. *.rs")
-			}
-
-			fn visit_str<E>(self, value: &str) -> Result<Self::Value, E>
-			where
-				E: serde::de::Error,
-			{
-				Ok(Pattern::from(value))
-			}
-		}
-
-		deserializer.deserialize_str(PatternVisitor)
-	}
+	fn try_from(s: String) -> Result<Self, Self::Error> { Self::try_from(s.as_str()) }
 }

src/config/preview/preview.rs

@@ -3,13 +3,7 @@ use std::fs;
 use serde::Deserialize;
 use xdg::BaseDirectories;
 
-#[derive(Deserialize, Debug)]
-pub struct Manager {
-	pub sort_by:      String,
-	pub sort_reverse: bool,
-}
-
-#[derive(Deserialize, Debug)]
+#[derive(Debug, Deserialize)]
 pub struct Preview {
 	pub tab_size: u32,
 
@@ -25,6 +19,7 @@ impl Preview {
 		}
 
 		let path = BaseDirectories::new().unwrap().get_config_file("yazi/yazi.toml");
-		toml::from_str::<Outer>(&fs::read_to_string(path).unwrap()).unwrap().preview
+		let outer: Outer = toml::from_str(&fs::read_to_string(path).unwrap()).unwrap();
+		outer.preview
 	}
 }

src/config/theme/color.rs

@@ -1,39 +1,42 @@
-use anyhow::Result;
+use std::ops::Deref;
+
+use anyhow::{bail, Result};
 use ratatui::style;
 use serde::Deserialize;
 
 #[derive(Deserialize)]
-pub struct Color {
-	pub fg: String,
-	pub bg: String,
+#[serde(try_from = "String")]
+pub struct Color(style::Color);
+
+impl Default for Color {
+	fn default() -> Self { Self(style::Color::Reset) }
 }
 
-impl Color {
-	pub fn fg_rgb(&self) -> style::Color {
-		if self.fg.len() < 7 {
-			return style::Color::Reset;
-		}
-		let convert = || -> Result<style::Color> {
-			Ok(style::Color::Rgb(
-				u8::from_str_radix(&self.fg[1..3], 16)?,
-				u8::from_str_radix(&self.fg[3..5], 16)?,
-				u8::from_str_radix(&self.fg[5..7], 16)?,
-			))
-		};
-		convert().unwrap_or(style::Color::Reset)
-	}
+impl TryFrom<String> for Color {
+	type Error = anyhow::Error;
 
-	pub fn bg_rgb(&self) -> style::Color {
-		if self.bg.len() < 7 {
-			return style::Color::Reset;
+	fn try_from(s: String) -> Result<Self, Self::Error> {
+		if s.len() < 7 {
+			bail!("Invalid color: {}", s);
 		}
-		let convert = || -> Result<style::Color> {
-			Ok(style::Color::Rgb(
-				u8::from_str_radix(&self.bg[1..3], 16)?,
-				u8::from_str_radix(&self.bg[3..5], 16)?,
-				u8::from_str_radix(&self.bg[5..7], 16)?,
-			))
-		};
-		convert().unwrap_or(style::Color::Reset)
+		Ok(Self(style::Color::Rgb(
+			u8::from_str_radix(&s[1..3], 16)?,
+			u8::from_str_radix(&s[3..5], 16)?,
+			u8::from_str_radix(&s[5..7], 16)?,
+		)))
 	}
 }
+
+impl Deref for Color {
+	type Target = style::Color;
+
+	fn deref(&self) -> &Self::Target { &self.0 }
+}
+
+#[derive(Deserialize)]
+pub struct ColorDual {
+	#[serde(default)]
+	pub fg: Color,
+	#[serde(default)]
+	pub bg: Color,
+}

src/config/theme/filetype.rs

@@ -0,0 +1,29 @@
+use serde::{Deserialize, Deserializer};
+
+use crate::config::Pattern;
+
+#[derive(Debug, Deserialize)]
+pub struct Filetype {
+	pub name: Option<Pattern>,
+	pub mime: Option<Pattern>,
+	#[serde(default)]
+	pub bg:   String,
+	#[serde(default)]
+	pub fg:   String,
+	#[serde(default)]
+	pub bold: bool,
+}
+
+impl Filetype {
+	pub fn deserialize<'de, D>(deserializer: D) -> Result<Vec<Filetype>, D::Error>
+	where
+		D: Deserializer<'de>,
+	{
+		#[derive(Deserialize)]
+		struct FiletypeOuter {
+			rules: Vec<Filetype>,
+		}
+
+		Ok(FiletypeOuter::deserialize(deserializer)?.rules)
+	}
+}

src/config/theme/icon.rs

@@ -1,6 +1,6 @@
 use std::fmt;
 
-use serde::{de::Visitor, Deserializer};
+use serde::{de::{self, Visitor}, Deserializer};
 
 use crate::config::Pattern;
 
@@ -11,10 +11,6 @@ pub struct Icon {
 }
 
 impl Icon {
-	pub fn new(name: String, display: String) -> Self {
-		Self { name: Pattern::from(name.as_ref()), display }
-	}
-
 	pub fn deserialize<'de, D>(deserializer: D) -> Result<Vec<Icon>, D::Error>
 	where
 		D: Deserializer<'de>,
@@ -30,11 +26,15 @@ impl Icon {
 
 			fn visit_map<A>(self, mut map: A) -> Result<Self::Value, A::Error>
 			where
-				A: serde::de::MapAccess<'de>,
+				A: de::MapAccess<'de>,
 			{
 				let mut icons = Vec::new();
 				while let Some((key, value)) = &map.next_entry::<String, String>()? {
-					icons.push(Icon::new(key.clone(), value.clone()));
+					icons.push(Icon {
+						name:    Pattern::try_from(key.clone())
+							.map_err(|e| de::Error::custom(e.to_string()))?,
+						display: value.clone(),
+					});
 				}
 				Ok(icons)
 			}

src/config/theme/mod.rs

@@ -1,7 +1,9 @@
 mod color;
+mod filetype;
 mod icon;
 mod theme;
 
 pub use color::*;
+pub use filetype::*;
 pub use icon::*;
 pub use theme::*;

src/config/theme/theme.rs

@@ -3,32 +3,29 @@ use std::{fs, path::PathBuf};
 use serde::Deserialize;
 use xdg::BaseDirectories;
 
-use super::{Color, Icon};
+use super::{ColorDual, Filetype, Icon};
 use crate::misc::absolute_path;
 
 #[derive(Deserialize)]
 pub struct Mode {
-	pub normal:   Color,
-	pub select:   Color,
-	pub unselect: Color,
+	pub normal:   ColorDual,
+	pub select:   ColorDual,
+	pub unselect: ColorDual,
 }
 
 #[derive(Deserialize)]
 pub struct Tab {
-	pub active:   Color,
-	pub inactive: Color,
+	pub active:   ColorDual,
+	pub inactive: ColorDual,
 }
 
 #[derive(Deserialize)]
 pub struct Selection {
-	pub normal:   Color,
-	pub hovered:  Color,
-	pub selected: Color,
+	pub normal:   ColorDual,
+	pub hovered:  ColorDual,
+	pub selected: ColorDual,
 }
 
-#[derive(Deserialize)]
-pub struct Filetype {}
-
 #[derive(Deserialize)]
 pub struct Syntect {
 	pub theme: PathBuf,
@@ -39,10 +36,11 @@ pub struct Theme {
 	pub mode:      Mode,
 	pub tab:       Tab,
 	pub selection: Selection,
-	pub filetype:  Filetype,
-	pub syntect:   Syntect,
+	#[serde(deserialize_with = "Filetype::deserialize")]
+	pub filetypes: Vec<Filetype>,
 	#[serde(deserialize_with = "Icon::deserialize")]
 	pub icons:     Vec<Icon>,
+	pub syntect:   Syntect,
 }
 
 impl Theme {

src/core/manager/mode.rs

@@ -12,7 +12,7 @@ pub enum Mode {
 
 impl Mode {
 	#[inline]
-	pub fn color(&self) -> &theme::Color {
+	pub fn color(&self) -> &theme::ColorDual {
 		match *self {
 			Mode::Normal => &THEME.mode.normal,
 			Mode::Select(_) => &THEME.mode.select,

src/ui/status/layout.rs

@@ -29,19 +29,16 @@ impl<'a> Widget for Layout<'a> {
 			)
 			.split(area);
 
-		Paragraph::new("").style(Style::default().fg(mode.color().bg_rgb())).render(chunks[0], buf);
+		Paragraph::new("").style(Style::default().fg(*mode.color().bg)).render(chunks[0], buf);
 
 		Paragraph::new(format!(" {} ", mode))
 			.style(
-				Style::default()
-					.fg(mode.color().fg_rgb())
-					.bg(mode.color().bg_rgb())
-					.add_modifier(Modifier::BOLD),
+				Style::default().fg(*mode.color().fg).bg(*mode.color().bg).add_modifier(Modifier::BOLD),
 			)
 			.render(chunks[1], buf);
 
 		Paragraph::new(" master ")
-			.style(Style::default().fg(mode.color().bg_rgb()).bg(Color::Rgb(72, 77, 102)))
+			.style(Style::default().fg(*mode.color().bg).bg(Color::Rgb(72, 77, 102)))
 			.render(chunks[2], buf);
 
 		Paragraph::new("").style(Style::default().fg(Color::Rgb(72, 77, 102))).render(chunks[3], buf);