blu/lux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 13 Wiki Activity

feat: add File.glob for file pattern matching (issue 15)

Browse Source 
Add File.glob(pattern) effect operation that returns a list of file
paths matching a glob pattern (e.g., "src/**/*.lux"). Implemented
across interpreter (using glob crate), JS backend (handler-based),
and C backend (using POSIX glob.h).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Brandon Lucas
2026-02-20 10:33:59 -05:00
parent 746643527d
commit f2688072ac
5 changed files with 75 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
Cargo.lock generated
View File

@@ -225,7 +225,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
dependencies = [
"libc",
"windows-sys 0.59.0",
"windows-sys 0.61.2",
]
[[package]]
@@ -392,6 +392,12 @@ dependencies = [
"wasip3",
]
[[package]]
name = "glob"
version = "0.3.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0cc23270f6e1808e30a928bdc84dea0b9b4136a8bc82338574f23baf47bbd280"
[[package]]
name = "h2"
version = "0.3.27"
@@ -772,6 +778,7 @@ dependencies = [
name = "lux"
version = "0.1.6"
dependencies = [
"glob",
"lsp-server",
"lsp-types",
"postgres",
@@ -1182,7 +1189,7 @@ dependencies = [
"errno",
"libc",
"linux-raw-sys",
"windows-sys 0.59.0",
"windows-sys 0.61.2",
]
[[package]]
@@ -1475,7 +1482,7 @@ dependencies = [
"getrandom 0.4.1",
"once_cell",
"rustix",
"windows-sys 0.59.0",
"windows-sys 0.61.2",
]
[[package]]

1
Cargo.toml
View File

@@ -17,6 +17,7 @@ reqwest = { version = "0.11", default-features = false, features = ["blocking",
tiny_http = "0.12"
rusqlite = { version = "0.31", features = ["bundled"] }
postgres = "0.19"
glob = "0.3"
[dev-dependencies]

37
src/codegen/c_backend.rs
View File

@@ -1166,6 +1166,7 @@ impl CBackend {
self.writeln(" void (*mkdir)(void* env, LuxString path);");
self.writeln(" void (*copy)(void* env, LuxString src, LuxString dst);");
self.writeln(" LuxList* (*readDir)(void* env, LuxString path);");
self.writeln(" LuxList* (*glob)(void* env, LuxString pattern);");
self.writeln(" void* env;");
self.writeln("} LuxFileHandler;");
self.writeln("");
@@ -1386,6 +1387,23 @@ impl CBackend {
self.writeln(" return result;");
self.writeln("}");
self.writeln("");
self.writeln("#include <glob.h>");
self.writeln("static LuxList* lux_file_glob(LuxString pattern) {");
self.writeln(" LuxList* result = lux_list_new(16);");
self.writeln(" glob_t globbuf;");
self.writeln(" int ret = glob(pattern, 0, NULL, &globbuf);");
self.writeln(" if (ret == 0) {");
self.writeln(" for (size_t i = 0; i < globbuf.gl_pathc; i++) {");
self.writeln(" size_t len = strlen(globbuf.gl_pathv[i]);");
self.writeln(" LuxString name = (LuxString)lux_rc_alloc(len + 1, LUX_TAG_STRING);");
self.writeln(" memcpy(name, globbuf.gl_pathv[i], len + 1);");
self.writeln(" lux_list_push(result, (void*)name);");
self.writeln(" }");
self.writeln(" globfree(&globbuf);");
self.writeln(" }");
self.writeln(" return result;");
self.writeln("}");
self.writeln("");
self.writeln("static LuxString default_file_read(void* env, LuxString path) {");
self.writeln(" (void)env;");
self.writeln(" return lux_file_read(path);");
@@ -1431,6 +1449,11 @@ impl CBackend {
self.writeln(" return lux_file_readDir(path);");
self.writeln("}");
self.writeln("");
self.writeln("static LuxList* default_file_glob(void* env, LuxString pattern) {");
self.writeln(" (void)env;");
self.writeln(" return lux_file_glob(pattern);");
self.writeln("}");
self.writeln("");
self.writeln("static LuxFileHandler default_file_handler = {");
self.writeln(" .read = default_file_read,");
self.writeln(" .write = default_file_write,");
@@ -1441,6 +1464,7 @@ impl CBackend {
self.writeln(" .mkdir = default_file_mkdir,");
self.writeln(" .copy = default_file_copy,");
self.writeln(" .readDir = default_file_readDir,");
self.writeln(" .glob = default_file_glob,");
self.writeln(" .env = NULL");
self.writeln("};");
self.writeln("");
@@ -3790,6 +3814,17 @@ impl CBackend {
self.register_rc_var(&temp, "LuxList*");
return Ok(temp);
}
"glob" => {
let pattern = self.emit_expr(&args[0])?;
let temp = format!("_glob_{}", self.fresh_name());
if self.has_evidence {
self.writeln(&format!("LuxList* {} = ev->file->glob(ev->file->env, {});", temp, pattern));
} else {
self.writeln(&format!("LuxList* {} = lux_file_glob({});", temp, pattern));
}
self.register_rc_var(&temp, "LuxList*");
return Ok(temp);
}
_ => {}
}
}
@@ -5353,7 +5388,7 @@ impl CBackend {
"read" => Some("LuxString".to_string()),
"write" | "append" | "delete" | "mkdir" | "copy" => Some("void".to_string()),
"exists" | "isDir" => Some("LuxBool".to_string()),
"readDir" | "listDir" => Some("LuxList*".to_string()),
"readDir" | "listDir" | "glob" => Some("LuxList*".to_string()),
_ => None,
}
} else if effect.name == "Http" {

23
src/interpreter.rs
View File

@@ -3968,6 +3968,29 @@ impl Interpreter {
}
}
("File", "glob") => {
let pattern = match request.args.first() {
Some(Value::String(s)) => s.clone(),
_ => return Err(RuntimeError {
message: "File.glob requires a string pattern".to_string(),
span: None,
}),
};
match glob::glob(&pattern) {
Ok(paths) => {
let entries: Vec<Value> = paths
.filter_map(|entry| entry.ok())
.map(|path| Value::String(path.to_string_lossy().to_string()))
.collect();
Ok(Value::List(entries))
}
Err(e) => Err(RuntimeError {
message: format!("Invalid glob pattern '{}': {}", pattern, e),
span: None,
}),
}
}
// ===== Process Effect =====
("Process", "exec") => {
use std::process::Command;

5
src/types.rs
View File

@@ -964,6 +964,11 @@ impl TypeEnv {
],
return_type: Type::Unit,
},
EffectOpDef {
name: "glob".to_string(),
params: vec![("pattern".to_string(), Type::String)],
return_type: Type::List(Box::new(Type::String)),
},
],
},
);