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 schema_version: Some(manifest.schema_version),
98 repository: manifest
99 .repository
100 .ok_or_else(|| anyhow!("missing repository in extension manifest"))?,
101 })?;
102 fs::remove_dir_all(&archive_dir)?;
103 fs::write(output_dir.join("manifest.json"), manifest_json.as_bytes())?;
104
105 Ok(())
106}
107
108fn populate_default_paths(manifest: &mut ExtensionManifest, extension_path: &Path) -> Result<()> {
109 let cargo_toml_path = extension_path.join("Cargo.toml");
110 if cargo_toml_path.exists() {
111 manifest.lib.kind = Some(ExtensionLibraryKind::Rust);
112 }
113
114 let languages_dir = extension_path.join("languages");
115 if languages_dir.exists() {
116 for entry in fs::read_dir(&languages_dir).context("failed to list languages dir")? {
117 let entry = entry?;
118 let language_dir = entry.path();
119 let config_path = language_dir.join("config.toml");
120 if config_path.exists() {
121 let relative_language_dir =
122 language_dir.strip_prefix(extension_path)?.to_path_buf();
123 if !manifest.languages.contains(&relative_language_dir) {
124 manifest.languages.push(relative_language_dir);
125 }
126 }
127 }
128 }
129
130 let themes_dir = extension_path.join("themes");
131 if themes_dir.exists() {
132 for entry in fs::read_dir(&themes_dir).context("failed to list themes dir")? {
133 let entry = entry?;
134 let theme_path = entry.path();
135 if theme_path.extension() == Some("json".as_ref()) {
136 let relative_theme_path = theme_path.strip_prefix(extension_path)?.to_path_buf();
137 if !manifest.themes.contains(&relative_theme_path) {
138 manifest.themes.push(relative_theme_path);
139 }
140 }
141 }
142 }
143
144 Ok(())
145}
146
147async fn copy_extension_resources(
148 manifest: &ExtensionManifest,
149 extension_path: &Path,
150 output_dir: &Path,
151 fs: Arc<dyn Fs>,
152) -> Result<()> {
153 fs::create_dir_all(&output_dir).context("failed to create output dir")?;
154
155 let manifest_toml = toml::to_string(&manifest).context("failed to serialize manifest")?;
156 fs::write(output_dir.join("extension.toml"), &manifest_toml)
157 .context("failed to write extension.toml")?;
158
159 if manifest.lib.kind.is_some() {
160 fs::copy(
161 extension_path.join("extension.wasm"),
162 output_dir.join("extension.wasm"),
163 )
164 .context("failed to copy extension.wasm")?;
165 }
166
167 if !manifest.grammars.is_empty() {
168 let source_grammars_dir = extension_path.join("grammars");
169 let output_grammars_dir = output_dir.join("grammars");
170 fs::create_dir_all(&output_grammars_dir)?;
171 for grammar_name in manifest.grammars.keys() {
172 let mut grammar_filename = PathBuf::from(grammar_name.as_ref());
173 grammar_filename.set_extension("wasm");
174 fs::copy(
175 &source_grammars_dir.join(&grammar_filename),
176 &output_grammars_dir.join(&grammar_filename),
177 )
178 .with_context(|| format!("failed to copy grammar '{}'", grammar_filename.display()))?;
179 }
180 }
181
182 if !manifest.themes.is_empty() {
183 let output_themes_dir = output_dir.join("themes");
184 fs::create_dir_all(&output_themes_dir)?;
185 for theme_path in &manifest.themes {
186 fs::copy(
187 extension_path.join(theme_path),
188 output_themes_dir.join(
189 theme_path
190 .file_name()
191 .ok_or_else(|| anyhow!("invalid theme path"))?,
192 ),
193 )
194 .with_context(|| format!("failed to copy theme '{}'", theme_path.display()))?;
195 }
196 }
197
198 if !manifest.languages.is_empty() {
199 let output_languages_dir = output_dir.join("languages");
200 fs::create_dir_all(&output_languages_dir)?;
201 for language_path in &manifest.languages {
202 copy_recursive(
203 fs.as_ref(),
204 &extension_path.join(language_path),
205 &output_languages_dir.join(
206 language_path
207 .file_name()
208 .ok_or_else(|| anyhow!("invalid language path"))?,
209 ),
210 CopyOptions {
211 overwrite: true,
212 ignore_if_exists: false,
213 },
214 )
215 .await
216 .with_context(|| {
217 format!("failed to copy language dir '{}'", language_path.display())
218 })?;
219 }
220 }
221
222 Ok(())
223}
224
225fn test_grammars(
226 manifest: &ExtensionManifest,
227 extension_path: &Path,
228 wasm_store: &mut WasmStore,
229) -> Result<HashMap<String, Language>> {
230 let mut grammars = HashMap::default();
231 let grammars_dir = extension_path.join("grammars");
232
233 for grammar_name in manifest.grammars.keys() {
234 let mut grammar_path = grammars_dir.join(grammar_name.as_ref());
235 grammar_path.set_extension("wasm");
236
237 let wasm = fs::read(&grammar_path)?;
238 let language = wasm_store.load_language(grammar_name, &wasm)?;
239 log::info!("loaded grammar {grammar_name}");
240 grammars.insert(grammar_name.to_string(), language);
241 }
242
243 Ok(grammars)
244}
245
246fn test_languages(
247 manifest: &ExtensionManifest,
248 extension_path: &Path,
249 grammars: &HashMap<String, Language>,
250) -> Result<()> {
251 for relative_language_dir in &manifest.languages {
252 let language_dir = extension_path.join(relative_language_dir);
253 let config_path = language_dir.join("config.toml");
254 let config_content = fs::read_to_string(&config_path)?;
255 let config: LanguageConfig = toml::from_str(&config_content)?;
256 let grammar = if let Some(name) = &config.grammar {
257 Some(
258 grammars
259 .get(name.as_ref())
260 .ok_or_else(|| anyhow!("language"))?,
261 )
262 } else {
263 None
264 };
265
266 let query_entries = fs::read_dir(&language_dir)?;
267 for entry in query_entries {
268 let entry = entry?;
269 let query_path = entry.path();
270 if query_path.extension() == Some("scm".as_ref()) {
271 let grammar = grammar.ok_or_else(|| {
272 anyhow!(
273 "language {} provides query {} but no grammar",
274 config.name,
275 query_path.display()
276 )
277 })?;
278
279 let query_source = fs::read_to_string(&query_path)?;
280 let _query = Query::new(grammar, &query_source)?;
281 }
282 }
283
284 log::info!("loaded language {}", config.name);
285 }
286
287 Ok(())
288}
289
290async fn test_themes(
291 manifest: &ExtensionManifest,
292 extension_path: &Path,
293 fs: Arc<dyn Fs>,
294) -> Result<()> {
295 for relative_theme_path in &manifest.themes {
296 let theme_path = extension_path.join(relative_theme_path);
297 let theme_family = ThemeRegistry::read_user_theme(&theme_path, fs.clone()).await?;
298 log::info!("loaded theme family {}", theme_family.name);
299 }
300
301 Ok(())
302}