1mod theme_printer;
2mod util;
3mod vscode;
4
5use std::fs::{self, File};
6use std::io::Write;
7use std::path::PathBuf;
8use std::process::Command;
9use std::str::FromStr;
10
11use anyhow::{anyhow, Context, Result};
12use convert_case::{Case, Casing};
13use gpui::serde_json;
14use log::LevelFilter;
15use serde::Deserialize;
16use simplelog::SimpleLogger;
17use theme::{Appearance, UserThemeFamily};
18use vscode::VsCodeThemeConverter;
19
20use crate::theme_printer::UserThemeFamilyPrinter;
21use crate::vscode::VsCodeTheme;
22
23#[derive(Debug, Deserialize)]
24struct FamilyMetadata {
25 pub name: String,
26 pub author: String,
27 pub themes: Vec<ThemeMetadata>,
28}
29
30#[derive(Debug, Deserialize)]
31#[serde(rename_all = "snake_case")]
32pub enum ThemeAppearanceJson {
33 Light,
34 Dark,
35}
36
37impl From<ThemeAppearanceJson> for Appearance {
38 fn from(value: ThemeAppearanceJson) -> Self {
39 match value {
40 ThemeAppearanceJson::Light => Self::Light,
41 ThemeAppearanceJson::Dark => Self::Dark,
42 }
43 }
44}
45
46#[derive(Debug, Deserialize)]
47pub struct ThemeMetadata {
48 pub name: String,
49 pub file_name: String,
50 pub appearance: ThemeAppearanceJson,
51}
52
53fn main() -> Result<()> {
54 const SOURCE_PATH: &str = "assets/themes/src/vscode";
55 const OUT_PATH: &str = "crates/theme2/src/themes";
56
57 SimpleLogger::init(LevelFilter::Info, Default::default()).expect("could not initialize logger");
58
59 println!("Loading themes source...");
60 let vscode_themes_path = PathBuf::from_str(SOURCE_PATH)?;
61 if !vscode_themes_path.exists() {
62 return Err(anyhow!(format!(
63 "Couldn't find {}, make sure it exists",
64 SOURCE_PATH
65 )));
66 }
67
68 let mut theme_families = Vec::new();
69
70 for theme_family_dir in fs::read_dir(&vscode_themes_path)? {
71 let theme_family_dir = theme_family_dir?;
72
73 if !theme_family_dir.file_type()?.is_dir() {
74 continue;
75 }
76
77 let theme_family_slug = theme_family_dir
78 .path()
79 .file_stem()
80 .ok_or(anyhow!("no file stem"))
81 .map(|stem| stem.to_string_lossy().to_string())?;
82
83 let family_metadata_file = File::open(theme_family_dir.path().join("family.json"))
84 .context(format!(
85 "no `family.json` found for '{}'",
86 theme_family_slug
87 ))?;
88
89 let license_file_path = theme_family_dir.path().join("LICENSE");
90
91 if !license_file_path.exists() {
92 println!("Skipping theme family '{}' because it does not have a LICENSE file. This theme will only be imported once a LICENSE file is provided.", theme_family_slug);
93 continue;
94 }
95
96 let family_metadata: FamilyMetadata = serde_json::from_reader(family_metadata_file)
97 .context(format!(
98 "failed to parse `family.json` for '{theme_family_slug}'"
99 ))?;
100
101 let mut themes = Vec::new();
102
103 for theme_metadata in family_metadata.themes {
104 let theme_file_path = theme_family_dir.path().join(&theme_metadata.file_name);
105
106 let theme_file = match File::open(&theme_file_path) {
107 Ok(file) => file,
108 Err(_) => {
109 println!("Failed to open file at path: {:?}", theme_file_path);
110 continue;
111 }
112 };
113
114 let vscode_theme: VsCodeTheme = serde_json::from_reader(theme_file)
115 .context(format!("failed to parse theme {theme_file_path:?}"))?;
116
117 let converter = VsCodeThemeConverter::new(vscode_theme, theme_metadata);
118
119 let theme = converter.convert()?;
120
121 themes.push(theme);
122 }
123
124 let theme_family = UserThemeFamily {
125 name: family_metadata.name.into(),
126 author: family_metadata.author.into(),
127 themes,
128 };
129
130 theme_families.push(theme_family);
131 }
132
133 let themes_output_path = PathBuf::from_str(OUT_PATH)?;
134
135 if !themes_output_path.exists() {
136 println!("Creating directory: {:?}", themes_output_path);
137 fs::create_dir_all(&themes_output_path)?;
138 }
139
140 let mut mod_rs_file = File::create(themes_output_path.join(format!("mod.rs")))?;
141
142 let mut theme_modules = Vec::new();
143
144 for theme_family in theme_families {
145 let theme_family_slug = theme_family.name.to_string().to_case(Case::Snake);
146
147 let mut output_file =
148 File::create(themes_output_path.join(format!("{theme_family_slug}.rs")))?;
149 println!(
150 "Creating file: {:?}",
151 themes_output_path.join(format!("{theme_family_slug}.rs"))
152 );
153
154 let theme_module = format!(
155 r#"
156 // This file was generated by the `theme_importer`.
157 // Be careful when modifying it by hand.
158
159 use gpui::rgba;
160
161 use crate::{{
162 Appearance, ThemeColorsRefinement, UserTheme, UserThemeFamily, UserThemeStylesRefinement,
163 }};
164
165 pub fn {theme_family_slug}() -> UserThemeFamily {{
166 {theme_family_definition}
167 }}
168 "#,
169 theme_family_definition = format!("{:#?}", UserThemeFamilyPrinter::new(theme_family))
170 );
171
172 output_file.write_all(theme_module.as_bytes())?;
173
174 theme_modules.push(theme_family_slug);
175 }
176
177 let themes_vector_contents = format!(
178 r#"
179 use crate::UserThemeFamily;
180
181 pub(crate) fn all_user_themes() -> Vec<UserThemeFamily> {{
182 vec![{all_themes}]
183 }}
184 "#,
185 all_themes = theme_modules
186 .iter()
187 .map(|module| format!("{}()", module))
188 .collect::<Vec<_>>()
189 .join(", ")
190 );
191
192 let mod_rs_contents = format!(
193 r#"
194 // This file was generated by the `theme_importer`.
195 // Be careful when modifying it by hand.
196
197 {mod_statements}
198
199 {use_statements}
200
201 {themes_vector_contents}
202 "#,
203 mod_statements = theme_modules
204 .iter()
205 .map(|module| format!("mod {module};"))
206 .collect::<Vec<_>>()
207 .join("\n"),
208 use_statements = theme_modules
209 .iter()
210 .map(|module| format!("pub use {module}::*;"))
211 .collect::<Vec<_>>()
212 .join("\n"),
213 themes_vector_contents = themes_vector_contents
214 );
215
216 mod_rs_file.write_all(mod_rs_contents.as_bytes())?;
217
218 println!("Formatting themes...");
219
220 let format_result = format_themes_crate()
221 // We need to format a second time to catch all of the formatting issues.
222 .and_then(|_| format_themes_crate());
223
224 if let Err(err) = format_result {
225 eprintln!("Failed to format themes: {}", err);
226 }
227
228 println!("Done!");
229
230 Ok(())
231}
232
233fn format_themes_crate() -> std::io::Result<std::process::Output> {
234 Command::new("cargo")
235 .args(["fmt", "--package", "theme2"])
236 .output()
237}