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Create helix-stdx crate for stdlib extensions

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helix-stdx is meant to carry extensions to the stdlib or low-level
dependencies that are useful in all other crates. This commit starts
with all of the path functions from helix-core and the CWD tracking that
lived in helix-loader.

The CWD tracking in helix-loader was previously unable to call the
canonicalization functions in helix-core. Switching to our custom
canonicalization code should make no noticeable difference though
since `std::env::current_dir` returns a canonicalized path with
symlinks resolved (at least on unix).
This commit is contained in:
Michael Davis 2024-01-16 13:59:48 -05:00 • committed by Blaž Hrastnik
parent af8e524a7d
commit 1f916e65cf
27 changed files with 163 additions and 111 deletions
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44
helix-loader/src/lib.rs
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@ -1,14 +1,13 @@
pub mod config;
pub mod grammar;
use helix_stdx::{env::current_working_dir, path};
use etcetera::base_strategy::{choose_base_strategy, BaseStrategy};
use std::path::{Path, PathBuf};
use std::sync::RwLock;
pub const VERSION_AND_GIT_HASH: &str = env!("VERSION_AND_GIT_HASH");
static CWD: RwLock<Option<PathBuf>> = RwLock::new(None);
static RUNTIME_DIRS: once_cell::sync::Lazy<Vec<PathBuf>> =
once_cell::sync::Lazy::new(prioritize_runtime_dirs);
@ -16,31 +15,6 @@ static CONFIG_FILE: once_cell::sync::OnceCell<PathBuf> = once_cell::sync::OnceCe
static LOG_FILE: once_cell::sync::OnceCell<PathBuf> = once_cell::sync::OnceCell::new();
// Get the current working directory.
// This information is managed internally as the call to std::env::current_dir
// might fail if the cwd has been deleted.
pub fn current_working_dir() -> PathBuf {
if let Some(path) = &*CWD.read().unwrap() {
return path.clone();
}
let path = std::env::current_dir()
.and_then(dunce::canonicalize)
.expect("Couldn't determine current working directory");
let mut cwd = CWD.write().unwrap();
*cwd = Some(path.clone());
path
}
pub fn set_current_working_dir(path: impl AsRef<Path>) -> std::io::Result<()> {
let path = dunce::canonicalize(path)?;
std::env::set_current_dir(&path)?;
let mut cwd = CWD.write().unwrap();
*cwd = Some(path);
Ok(())
}
pub fn initialize_config_file(specified_file: Option<PathBuf>) {
let config_file = specified_file.unwrap_or_else(default_config_file);
ensure_parent_dir(&config_file);
@ -280,21 +254,9 @@ fn ensure_parent_dir(path: &Path) {
mod merge_toml_tests {
use std::str;
use super::{current_working_dir, merge_toml_values, set_current_working_dir};
use super::merge_toml_values;
use toml::Value;
#[test]
fn current_dir_is_set() {
let new_path = dunce::canonicalize(std::env::temp_dir()).unwrap();
let cwd = current_working_dir();
assert_ne!(cwd, new_path);
set_current_working_dir(&new_path).expect("Couldn't set new path");
let cwd = current_working_dir();
assert_eq!(cwd, new_path);
}
#[test]
fn language_toml_map_merges() {
const USER: &str = r#"