ZIm/crates/theme_converter/src/main.rs
2023-10-30 11:21:33 -04:00

390 lines
12 KiB
Rust

mod theme_printer;
use std::borrow::Cow;
use std::collections::HashMap;
use std::fmt::{self, Debug};
use std::fs::File;
use std::io::Write;
use std::path::PathBuf;
use std::str::FromStr;
use anyhow::{anyhow, Context, Result};
use clap::Parser;
use convert_case::{Case, Casing};
use gpui2::{hsla, rgb, serde_json, AssetSource, Hsla, SharedString};
use log::LevelFilter;
use rust_embed::RustEmbed;
use serde::de::Visitor;
use serde::{Deserialize, Deserializer};
use simplelog::SimpleLogger;
use theme2::{PlayerTheme, SyntaxTheme};
use crate::theme_printer::ThemePrinter;
#[derive(Parser)]
#[command(author, version, about, long_about = None)]
struct Args {
/// The name of the theme to convert.
theme: String,
}
fn main() -> Result<()> {
SimpleLogger::init(LevelFilter::Info, Default::default()).expect("could not initialize logger");
// let args = Args::parse();
let themes_path = PathBuf::from_str("crates/theme2/src/themes")?;
let mut theme_modules = Vec::new();
for theme_path in Assets.list("themes/")? {
let (_, theme_name) = theme_path.split_once("themes/").unwrap();
if theme_name == ".gitkeep" {
continue;
}
let (json_theme, legacy_theme) = load_theme(&theme_path)?;
let theme = convert_theme(json_theme, legacy_theme)?;
let theme_slug = theme
.metadata
.name
.as_ref()
.replace("é", "e")
.to_case(Case::Snake);
let mut output_file = File::create(themes_path.join(format!("{theme_slug}.rs")))?;
let theme_module = format!(
r#"
use gpui2::rgba;
use crate::{{PlayerTheme, SyntaxTheme, Theme, ThemeMetadata}};
pub fn {theme_slug}() -> Theme {{
{theme_definition}
}}
"#,
theme_definition = format!("{:#?}", ThemePrinter::new(theme))
);
output_file.write_all(theme_module.as_bytes())?;
theme_modules.push(theme_slug);
}
let mut mod_rs_file = File::create(themes_path.join(format!("mod.rs")))?;
let mod_rs_contents = format!(
r#"
{mod_statements}
{use_statements}
"#,
mod_statements = theme_modules
.iter()
.map(|module| format!("mod {module};"))
.collect::<Vec<_>>()
.join("\n"),
use_statements = theme_modules
.iter()
.map(|module| format!("pub use {module}::*;"))
.collect::<Vec<_>>()
.join("\n")
);
mod_rs_file.write_all(mod_rs_contents.as_bytes())?;
Ok(())
}
#[derive(RustEmbed)]
#[folder = "../../assets"]
#[include = "fonts/**/*"]
#[include = "icons/**/*"]
#[include = "themes/**/*"]
#[include = "sounds/**/*"]
#[include = "*.md"]
#[exclude = "*.DS_Store"]
pub struct Assets;
impl AssetSource for Assets {
fn load(&self, path: &str) -> Result<Cow<[u8]>> {
Self::get(path)
.map(|f| f.data)
.ok_or_else(|| anyhow!("could not find asset at path \"{}\"", path))
}
fn list(&self, path: &str) -> Result<Vec<SharedString>> {
Ok(Self::iter()
.filter(|p| p.starts_with(path))
.map(SharedString::from)
.collect())
}
}
#[derive(Clone, Copy)]
pub struct PlayerThemeColors {
pub cursor: Hsla,
pub selection: Hsla,
}
impl PlayerThemeColors {
pub fn new(theme: &LegacyTheme, ix: usize) -> Self {
if ix < theme.players.len() {
Self {
cursor: theme.players[ix].cursor,
selection: theme.players[ix].selection,
}
} else {
Self {
cursor: rgb::<Hsla>(0xff00ff),
selection: rgb::<Hsla>(0xff00ff),
}
}
}
}
impl From<PlayerThemeColors> for PlayerTheme {
fn from(value: PlayerThemeColors) -> Self {
Self {
cursor: value.cursor,
selection: value.selection,
}
}
}
fn convert_theme(json_theme: JsonTheme, legacy_theme: LegacyTheme) -> Result<theme2::Theme> {
let transparent = hsla(0.0, 0.0, 0.0, 0.0);
let players: [PlayerTheme; 8] = [
PlayerThemeColors::new(&legacy_theme, 0).into(),
PlayerThemeColors::new(&legacy_theme, 1).into(),
PlayerThemeColors::new(&legacy_theme, 2).into(),
PlayerThemeColors::new(&legacy_theme, 3).into(),
PlayerThemeColors::new(&legacy_theme, 4).into(),
PlayerThemeColors::new(&legacy_theme, 5).into(),
PlayerThemeColors::new(&legacy_theme, 6).into(),
PlayerThemeColors::new(&legacy_theme, 7).into(),
];
let theme = theme2::Theme {
metadata: theme2::ThemeMetadata {
name: legacy_theme.name.clone().into(),
is_light: legacy_theme.is_light,
},
transparent,
mac_os_traffic_light_red: rgb::<Hsla>(0xEC695E),
mac_os_traffic_light_yellow: rgb::<Hsla>(0xF4BF4F),
mac_os_traffic_light_green: rgb::<Hsla>(0x62C554),
border: legacy_theme.lowest.base.default.border,
border_variant: legacy_theme.lowest.variant.default.border,
border_focused: legacy_theme.lowest.accent.default.border,
border_transparent: transparent,
elevated_surface: legacy_theme.lowest.base.default.background,
surface: legacy_theme.middle.base.default.background,
background: legacy_theme.lowest.base.default.background,
filled_element: legacy_theme.lowest.base.default.background,
filled_element_hover: hsla(0.0, 0.0, 100.0, 0.12),
filled_element_active: hsla(0.0, 0.0, 100.0, 0.16),
filled_element_selected: legacy_theme.lowest.accent.default.background,
filled_element_disabled: transparent,
ghost_element: transparent,
ghost_element_hover: hsla(0.0, 0.0, 100.0, 0.08),
ghost_element_active: hsla(0.0, 0.0, 100.0, 0.12),
ghost_element_selected: legacy_theme.lowest.accent.default.background,
ghost_element_disabled: transparent,
text: legacy_theme.lowest.base.default.foreground,
text_muted: legacy_theme.lowest.variant.default.foreground,
/// TODO: map this to a real value
text_placeholder: legacy_theme.lowest.negative.default.foreground,
text_disabled: legacy_theme.lowest.base.disabled.foreground,
text_accent: legacy_theme.lowest.accent.default.foreground,
icon_muted: legacy_theme.lowest.variant.default.foreground,
syntax: SyntaxTheme {
highlights: json_theme
.editor
.syntax
.iter()
.map(|(token, style)| (token.clone(), style.color.clone().into()))
.collect(),
},
status_bar: legacy_theme.lowest.base.default.background,
title_bar: legacy_theme.lowest.base.default.background,
toolbar: legacy_theme.highest.base.default.background,
tab_bar: legacy_theme.middle.base.default.background,
editor: legacy_theme.highest.base.default.background,
editor_subheader: legacy_theme.middle.base.default.background,
terminal: legacy_theme.highest.base.default.background,
editor_active_line: legacy_theme.highest.on.default.background,
image_fallback_background: legacy_theme.lowest.base.default.background,
git_created: legacy_theme.lowest.positive.default.foreground,
git_modified: legacy_theme.lowest.accent.default.foreground,
git_deleted: legacy_theme.lowest.negative.default.foreground,
git_conflict: legacy_theme.lowest.warning.default.foreground,
git_ignored: legacy_theme.lowest.base.disabled.foreground,
git_renamed: legacy_theme.lowest.warning.default.foreground,
players,
};
Ok(theme)
}
#[derive(Deserialize)]
struct JsonTheme {
pub editor: JsonEditorTheme,
pub base_theme: serde_json::Value,
}
#[derive(Deserialize)]
struct JsonEditorTheme {
pub syntax: HashMap<String, JsonSyntaxStyle>,
}
#[derive(Deserialize)]
struct JsonSyntaxStyle {
pub color: Hsla,
}
/// Loads the [`Theme`] with the given name.
fn load_theme(theme_path: &str) -> Result<(JsonTheme, LegacyTheme)> {
let theme_contents =
Assets::get(theme_path).with_context(|| format!("theme file not found: '{theme_path}'"))?;
let json_theme: JsonTheme = serde_json::from_str(std::str::from_utf8(&theme_contents.data)?)
.context("failed to parse legacy theme")?;
let legacy_theme: LegacyTheme = serde_json::from_value(json_theme.base_theme.clone())
.context("failed to parse `base_theme`")?;
Ok((json_theme, legacy_theme))
}
#[derive(Deserialize, Clone, Default, Debug)]
pub struct LegacyTheme {
pub name: String,
pub is_light: bool,
pub lowest: Layer,
pub middle: Layer,
pub highest: Layer,
pub popover_shadow: Shadow,
pub modal_shadow: Shadow,
#[serde(deserialize_with = "deserialize_player_colors")]
pub players: Vec<PlayerColors>,
#[serde(deserialize_with = "deserialize_syntax_colors")]
pub syntax: HashMap<String, Hsla>,
}
#[derive(Deserialize, Clone, Default, Debug)]
pub struct Layer {
pub base: StyleSet,
pub variant: StyleSet,
pub on: StyleSet,
pub accent: StyleSet,
pub positive: StyleSet,
pub warning: StyleSet,
pub negative: StyleSet,
}
#[derive(Deserialize, Clone, Default, Debug)]
pub struct StyleSet {
#[serde(rename = "default")]
pub default: ContainerColors,
pub hovered: ContainerColors,
pub pressed: ContainerColors,
pub active: ContainerColors,
pub disabled: ContainerColors,
pub inverted: ContainerColors,
}
#[derive(Deserialize, Clone, Default, Debug)]
pub struct ContainerColors {
pub background: Hsla,
pub foreground: Hsla,
pub border: Hsla,
}
#[derive(Deserialize, Clone, Default, Debug)]
pub struct PlayerColors {
pub selection: Hsla,
pub cursor: Hsla,
}
#[derive(Deserialize, Clone, Default, Debug)]
pub struct Shadow {
pub blur: u8,
pub color: Hsla,
pub offset: Vec<u8>,
}
fn deserialize_player_colors<'de, D>(deserializer: D) -> Result<Vec<PlayerColors>, D::Error>
where
D: Deserializer<'de>,
{
struct PlayerArrayVisitor;
impl<'de> Visitor<'de> for PlayerArrayVisitor {
type Value = Vec<PlayerColors>;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("an object with integer keys")
}
fn visit_map<A: serde::de::MapAccess<'de>>(
self,
mut map: A,
) -> Result<Self::Value, A::Error> {
let mut players = Vec::with_capacity(8);
while let Some((key, value)) = map.next_entry::<usize, PlayerColors>()? {
if key < 8 {
players.push(value);
} else {
return Err(serde::de::Error::invalid_value(
serde::de::Unexpected::Unsigned(key as u64),
&"a key in range 0..7",
));
}
}
Ok(players)
}
}
deserializer.deserialize_map(PlayerArrayVisitor)
}
fn deserialize_syntax_colors<'de, D>(deserializer: D) -> Result<HashMap<String, Hsla>, D::Error>
where
D: serde::Deserializer<'de>,
{
#[derive(Deserialize)]
struct ColorWrapper {
color: Hsla,
}
struct SyntaxVisitor;
impl<'de> Visitor<'de> for SyntaxVisitor {
type Value = HashMap<String, Hsla>;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("a map with keys and objects with a single color field as values")
}
fn visit_map<M>(self, mut map: M) -> Result<HashMap<String, Hsla>, M::Error>
where
M: serde::de::MapAccess<'de>,
{
let mut result = HashMap::new();
while let Some(key) = map.next_key()? {
let wrapper: ColorWrapper = map.next_value()?; // Deserialize values as Hsla
result.insert(key, wrapper.color);
}
Ok(result)
}
}
deserializer.deserialize_map(SyntaxVisitor)
}