diff options
Diffstat (limited to 'helix-syntax/build.rs')
| -rw-r--r-- | helix-syntax/build.rs | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/helix-syntax/build.rs b/helix-syntax/build.rs deleted file mode 100644 index fa8be8b3..00000000 --- a/helix-syntax/build.rs +++ /dev/null @@ -1,206 +0,0 @@ -use anyhow::{anyhow, Context, Result}; -use std::fs; -use std::time::SystemTime; -use std::{ - path::{Path, PathBuf}, - process::Command, -}; - -use std::sync::mpsc::channel; - -fn collect_tree_sitter_dirs(ignore: &[String]) -> Result<Vec<String>> { - let mut dirs = Vec::new(); - let path = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("languages"); - - for entry in fs::read_dir(path)? { - let entry = entry?; - let path = entry.path(); - - if !entry.file_type()?.is_dir() { - continue; - } - - let dir = path.file_name().unwrap().to_str().unwrap().to_string(); - - // filter ignores - if ignore.contains(&dir) { - continue; - } - dirs.push(dir) - } - - Ok(dirs) -} - -#[cfg(unix)] -const DYLIB_EXTENSION: &str = "so"; - -#[cfg(windows)] -const DYLIB_EXTENSION: &str = "dll"; - -fn build_library(src_path: &Path, language: &str) -> Result<()> { - let header_path = src_path; - // let grammar_path = src_path.join("grammar.json"); - let parser_path = src_path.join("parser.c"); - let mut scanner_path = src_path.join("scanner.c"); - - let scanner_path = if scanner_path.exists() { - Some(scanner_path) - } else { - scanner_path.set_extension("cc"); - if scanner_path.exists() { - Some(scanner_path) - } else { - None - } - }; - let parser_lib_path = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("../runtime/grammars"); - let mut library_path = parser_lib_path.join(language); - library_path.set_extension(DYLIB_EXTENSION); - - let recompile = needs_recompile(&library_path, &parser_path, &scanner_path) - .with_context(|| "Failed to compare source and binary timestamps")?; - - if !recompile { - return Ok(()); - } - let mut config = cc::Build::new(); - config.cpp(true).opt_level(2).cargo_metadata(false); - let compiler = config.get_compiler(); - let mut command = Command::new(compiler.path()); - command.current_dir(src_path); - for (key, value) in compiler.env() { - command.env(key, value); - } - - if cfg!(windows) { - command - .args(&["/nologo", "/LD", "/I"]) - .arg(header_path) - .arg("/Od") - .arg("/utf-8"); - if let Some(scanner_path) = scanner_path.as_ref() { - command.arg(scanner_path); - } - - command - .arg(parser_path) - .arg("/link") - .arg(format!("/out:{}", library_path.to_str().unwrap())); - } else { - command - .arg("-shared") - .arg("-fPIC") - .arg("-fno-exceptions") - .arg("-g") - .arg("-I") - .arg(header_path) - .arg("-o") - .arg(&library_path) - .arg("-O2"); - if let Some(scanner_path) = scanner_path.as_ref() { - if scanner_path.extension() == Some("c".as_ref()) { - command.arg("-xc").arg("-std=c99").arg(scanner_path); - } else { - command.arg(scanner_path); - } - } - command.arg("-xc").arg(parser_path); - if cfg!(all(unix, not(target_os = "macos"))) { - command.arg("-Wl,-z,relro,-z,now"); - } - } - - let output = command - .output() - .with_context(|| "Failed to execute C compiler")?; - if !output.status.success() { - return Err(anyhow!( - "Parser compilation failed.\nStdout: {}\nStderr: {}", - String::from_utf8_lossy(&output.stdout), - String::from_utf8_lossy(&output.stderr) - )); - } - - Ok(()) -} -fn needs_recompile( - lib_path: &Path, - parser_c_path: &Path, - scanner_path: &Option<PathBuf>, -) -> Result<bool> { - if !lib_path.exists() { - return Ok(true); - } - let lib_mtime = mtime(lib_path)?; - if mtime(parser_c_path)? > lib_mtime { - return Ok(true); - } - if let Some(scanner_path) = scanner_path { - if mtime(scanner_path)? > lib_mtime { - return Ok(true); - } - } - Ok(false) -} - -fn mtime(path: &Path) -> Result<SystemTime> { - Ok(fs::metadata(path)?.modified()?) -} - -fn build_dir(dir: &str, language: &str) { - println!("Build language {}", language); - if PathBuf::from("languages") - .join(dir) - .read_dir() - .unwrap() - .next() - .is_none() - { - eprintln!( - "The directory {} is empty, you probably need to use 'git submodule update --init --recursive'?", - dir - ); - std::process::exit(1); - } - - let path = PathBuf::from(env!("CARGO_MANIFEST_DIR")) - .join("languages") - .join(dir) - .join("src"); - - build_library(&path, language).unwrap(); -} - -fn main() { - let ignore = vec![ - "tree-sitter-typescript".to_string(), - "tree-sitter-ocaml".to_string(), - ]; - let dirs = collect_tree_sitter_dirs(&ignore).unwrap(); - - let mut n_jobs = 0; - let pool = threadpool::Builder::new().build(); // by going through the builder, it'll use num_cpus - let (tx, rx) = channel(); - - for dir in dirs { - let tx = tx.clone(); - n_jobs += 1; - - pool.execute(move || { - let language = &dir.strip_prefix("tree-sitter-").unwrap(); - build_dir(&dir, language); - - // report progress - tx.send(1).unwrap(); - }); - } - pool.join(); - // drop(tx); - assert_eq!(rx.try_iter().sum::<usize>(), n_jobs); - - build_dir("tree-sitter-typescript/tsx", "tsx"); - build_dir("tree-sitter-typescript/typescript", "typescript"); - build_dir("tree-sitter-ocaml/ocaml", "ocaml"); - build_dir("tree-sitter-ocaml/interface", "ocaml-interface") -} |