1use std::{
2 collections::HashMap,
3 env, fs,
4 path::{Path, PathBuf},
5 process::Command,
6 sync::Arc,
7};
8
9use ::fs::{copy_recursive, CopyOptions, Fs, RealFs};
10use anyhow::{anyhow, bail, Context, Result};
11use clap::Parser;
12use extension::{
13 extension_builder::{CompileExtensionOptions, ExtensionBuilder},
14 ExtensionLibraryKind, ExtensionManifest, ExtensionStore,
15};
16use language::LanguageConfig;
17use theme::ThemeRegistry;
18use tree_sitter::{Language, Query, WasmStore};
19
20#[derive(Parser, Debug)]
21#[command(name = "zed-extension")]
22struct Args {
23 /// The path to the extension directory
24 #[arg(long)]
25 source_dir: PathBuf,
26 /// The output directory to place the packaged extension.
27 #[arg(long)]
28 output_dir: PathBuf,
29 /// The path to a directory where build dependencies are downloaded
30 #[arg(long)]
31 scratch_dir: PathBuf,
32}
33
34#[tokio::main]
35async fn main() -> Result<()> {
36 env_logger::init();
37
38 let args = Args::parse();
39 let fs = Arc::new(RealFs);
40 let engine = wasmtime::Engine::default();
41 let mut wasm_store = WasmStore::new(engine)?;
42
43 let extension_path = args
44 .source_dir
45 .canonicalize()
46 .context("failed to canonicalize source_dir")?;
47 let scratch_dir = args
48 .scratch_dir
49 .canonicalize()
50 .context("failed to canonicalize scratch_dir")?;
51 let output_dir = if args.output_dir.is_relative() {
52 env::current_dir()?.join(&args.output_dir)
53 } else {
54 args.output_dir
55 };
56
57 let mut manifest = ExtensionStore::load_extension_manifest(fs.clone(), &extension_path).await?;
58 populate_default_paths(&mut manifest, &extension_path)?;
59
60 let builder = ExtensionBuilder::new(scratch_dir);
61 builder
62 .compile_extension(
63 &extension_path,
64 &manifest,
65 CompileExtensionOptions { release: true },
66 )
67 .await
68 .context("failed to compile extension")?;
69
70 let grammars = test_grammars(&manifest, &extension_path, &mut wasm_store)?;
71 test_languages(&manifest, &extension_path, &grammars)?;
72 test_themes(&manifest, &extension_path, fs.clone()).await?;
73
74 let archive_dir = output_dir.join("archive");
75 fs::remove_dir_all(&archive_dir).ok();
76 copy_extension_resources(&manifest, &extension_path, &archive_dir, fs.clone())
77 .await
78 .context("failed to copy extension resources")?;
79
80 let tar_output = Command::new("tar")
81 .current_dir(&output_dir)
82 .args(&["-czvf", "archive.tar.gz", "-C", "archive", "."])
83 .output()
84 .context("failed to run tar")?;
85 if !tar_output.status.success() {
86 bail!(
87 "failed to create archive.tar.gz: {}",
88 String::from_utf8_lossy(&tar_output.stderr)
89 );
90 }
91
92 let manifest_json = serde_json::to_string(&rpc::ExtensionApiManifest {
93 name: manifest.name,
94 version: manifest.version.to_string(),
95 description: manifest.description,
96 authors: manifest.authors,
97 repository: manifest
98 .repository
99 .ok_or_else(|| anyhow!("missing repository in extension manifest"))?,
100 })?;
101 fs::remove_dir_all(&archive_dir)?;
102 fs::write(output_dir.join("manifest.json"), manifest_json.as_bytes())?;
103
104 Ok(())
105}
106
107fn populate_default_paths(manifest: &mut ExtensionManifest, extension_path: &Path) -> Result<()> {
108 let cargo_toml_path = extension_path.join("Cargo.toml");
109 if cargo_toml_path.exists() {
110 manifest.lib.kind = Some(ExtensionLibraryKind::Rust);
111 }
112
113 let languages_dir = extension_path.join("languages");
114 if languages_dir.exists() {
115 for entry in fs::read_dir(&languages_dir).context("failed to list languages dir")? {
116 let entry = entry?;
117 let language_dir = entry.path();
118 let config_path = language_dir.join("config.toml");
119 if config_path.exists() {
120 let relative_language_dir =
121 language_dir.strip_prefix(extension_path)?.to_path_buf();
122 if !manifest.languages.contains(&relative_language_dir) {
123 manifest.languages.push(relative_language_dir);
124 }
125 }
126 }
127 }
128
129 let themes_dir = extension_path.join("themes");
130 if themes_dir.exists() {
131 for entry in fs::read_dir(&themes_dir).context("failed to list themes dir")? {
132 let entry = entry?;
133 let theme_path = entry.path();
134 if theme_path.extension() == Some("json".as_ref()) {
135 let relative_theme_path = theme_path.strip_prefix(extension_path)?.to_path_buf();
136 if !manifest.themes.contains(&relative_theme_path) {
137 manifest.themes.push(relative_theme_path);
138 }
139 }
140 }
141 }
142
143 Ok(())
144}
145
146async fn copy_extension_resources(
147 manifest: &ExtensionManifest,
148 extension_path: &Path,
149 output_dir: &Path,
150 fs: Arc<dyn Fs>,
151) -> Result<()> {
152 fs::create_dir_all(&output_dir).context("failed to create output dir")?;
153
154 let manifest_toml = toml::to_string(&manifest).context("failed to serialize manifest")?;
155 fs::write(output_dir.join("extension.toml"), &manifest_toml)
156 .context("failed to write extension.toml")?;
157
158 if manifest.lib.kind.is_some() {
159 fs::copy(
160 extension_path.join("extension.wasm"),
161 output_dir.join("extension.wasm"),
162 )
163 .context("failed to copy extension.wasm")?;
164 }
165
166 if !manifest.grammars.is_empty() {
167 let source_grammars_dir = extension_path.join("grammars");
168 let output_grammars_dir = output_dir.join("grammars");
169 fs::create_dir_all(&output_grammars_dir)?;
170 for grammar_name in manifest.grammars.keys() {
171 let mut grammar_filename = PathBuf::from(grammar_name.as_ref());
172 grammar_filename.set_extension("wasm");
173 fs::copy(
174 &source_grammars_dir.join(&grammar_filename),
175 &output_grammars_dir.join(&grammar_filename),
176 )
177 .with_context(|| format!("failed to copy grammar '{}'", grammar_filename.display()))?;
178 }
179 }
180
181 if !manifest.themes.is_empty() {
182 let output_themes_dir = output_dir.join("themes");
183 fs::create_dir_all(&output_themes_dir)?;
184 for theme_path in &manifest.themes {
185 fs::copy(
186 extension_path.join(theme_path),
187 output_themes_dir.join(
188 theme_path
189 .file_name()
190 .ok_or_else(|| anyhow!("invalid theme path"))?,
191 ),
192 )
193 .with_context(|| format!("failed to copy theme '{}'", theme_path.display()))?;
194 }
195 }
196
197 if !manifest.languages.is_empty() {
198 let output_languages_dir = output_dir.join("languages");
199 fs::create_dir_all(&output_languages_dir)?;
200 for language_path in &manifest.languages {
201 copy_recursive(
202 fs.as_ref(),
203 &extension_path.join(language_path),
204 &output_languages_dir.join(
205 language_path
206 .file_name()
207 .ok_or_else(|| anyhow!("invalid language path"))?,
208 ),
209 CopyOptions {
210 overwrite: true,
211 ignore_if_exists: false,
212 },
213 )
214 .await
215 .with_context(|| {
216 format!("failed to copy language dir '{}'", language_path.display())
217 })?;
218 }
219 }
220
221 Ok(())
222}
223
224fn test_grammars(
225 manifest: &ExtensionManifest,
226 extension_path: &Path,
227 wasm_store: &mut WasmStore,
228) -> Result<HashMap<String, Language>> {
229 let mut grammars = HashMap::default();
230 let grammars_dir = extension_path.join("grammars");
231
232 for grammar_name in manifest.grammars.keys() {
233 let mut grammar_path = grammars_dir.join(grammar_name.as_ref());
234 grammar_path.set_extension("wasm");
235
236 let wasm = fs::read(&grammar_path)?;
237 let language = wasm_store.load_language(grammar_name, &wasm)?;
238 log::info!("loaded grammar {grammar_name}");
239 grammars.insert(grammar_name.to_string(), language);
240 }
241
242 Ok(grammars)
243}
244
245fn test_languages(
246 manifest: &ExtensionManifest,
247 extension_path: &Path,
248 grammars: &HashMap<String, Language>,
249) -> Result<()> {
250 for relative_language_dir in &manifest.languages {
251 let language_dir = extension_path.join(relative_language_dir);
252 let config_path = language_dir.join("config.toml");
253 let config_content = fs::read_to_string(&config_path)?;
254 let config: LanguageConfig = toml::from_str(&config_content)?;
255 let grammar = if let Some(name) = &config.grammar {
256 Some(
257 grammars
258 .get(name.as_ref())
259 .ok_or_else(|| anyhow!("language"))?,
260 )
261 } else {
262 None
263 };
264
265 let query_entries = fs::read_dir(&language_dir)?;
266 for entry in query_entries {
267 let entry = entry?;
268 let query_path = entry.path();
269 if query_path.extension() == Some("scm".as_ref()) {
270 let grammar = grammar.ok_or_else(|| {
271 anyhow!(
272 "language {} provides query {} but no grammar",
273 config.name,
274 query_path.display()
275 )
276 })?;
277
278 let query_source = fs::read_to_string(&query_path)?;
279 let _query = Query::new(grammar, &query_source)?;
280 }
281 }
282
283 log::info!("loaded language {}", config.name);
284 }
285
286 Ok(())
287}
288
289async fn test_themes(
290 manifest: &ExtensionManifest,
291 extension_path: &Path,
292 fs: Arc<dyn Fs>,
293) -> Result<()> {
294 for relative_theme_path in &manifest.themes {
295 let theme_path = extension_path.join(relative_theme_path);
296 let theme_family = ThemeRegistry::read_user_theme(&theme_path, fs.clone()).await?;
297 log::info!("loaded theme family {}", theme_family.name);
298 }
299
300 Ok(())
301}