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Remove once_cell, using std::sync instead. Sync point move to engine_state to handle subshell PWD change problem

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This commit is contained in:
Zhenping Zhao 2024-11-22 21:02:15 -08:00
parent 884214ecb4
commit e9461395e9
4 changed files with 61 additions and 62 deletions
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1
crates/nu-path/Cargo.toml
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@ -17,7 +17,6 @@ cfg-if = "1.0.0"
[target.'cfg(windows)'.dependencies]
omnipath = { workspace = true }
once_cell = "1.20.1"
winapi = { version = "0.3.9", features = ["fileapi"] }
[target.'cfg(all(unix, not(target_os = "macos"), not(target_os = "android")))'.dependencies]

119
crates/nu-path/src/pwd_per_drive.rs
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@ -2,8 +2,6 @@ use std::path::{Path, PathBuf};
cfg_if::cfg_if! { if #[cfg(windows)] {
use once_cell::sync::Lazy;
use std::sync::Mutex;
struct Drive2PWDmap {
map: [Option<String>; 26], // Fixed-size array for A-Z
@ -29,20 +27,20 @@ impl Drive2PWDmap {
Err(format!("Invalid path: {}", path.display()))
}
/// Get the PWD for drive, if not yet, ask GetFullPathNameW,
/// or else return default "X:/".
/// Get the PWD for drive, if not yet, ask GetFullPathNameW(),
/// or else return default r"X:\".
fn get_pwd(&mut self, drive: char) -> Option<String> {
if drive.is_ascii_alphabetic() && drive.is_ascii_uppercase() {
if drive.is_ascii_alphabetic() {
let drive = drive.to_ascii_uppercase();
let index = drive as usize - 'A' as usize;
Some(
self.map[index]
Some(self.map[index]
.clone()
.unwrap_or_else(||
if let Some(system_pwd) = get_full_path_name_w(&format!("{}:", drive.to_ascii_uppercase())) {
if let Some(system_pwd) = get_full_path_name_w(&format!("{}:", drive)) {
self.map[index] = Some(system_pwd.clone());
system_pwd
} else {
format!("{}:/", drive.to_ascii_uppercase())
format!(r"{}:\", drive)
}
)
)
@ -67,29 +65,18 @@ impl Drive2PWDmap {
None // Invalid path or has no drive letter
}
/// Helper to convert a drive letter to an array index
// fn drive_to_index(drive: char) -> Option<usize> {
// let drive = drive.to_ascii_uppercase();
// if drive.is_ascii_uppercase() {
// Some((drive as usize) - ('A' as usize))
// } else {
// None
// }
// }
/// Extract the drive letter from a path (e.g., `C:test` -> `C`)
fn extract_drive_letter(path: &Path) -> Option<char> {
Some(path.to_str()
.and_then(|s| s.chars().next())
.filter(|c| c.is_ascii_alphabetic())?
.to_ascii_uppercase()
)
}
/// Ensure a path has a trailing `\`
fn ensure_trailing_separator(path: &str) -> String {
if !path.ends_with('\\') && !path.ends_with('/') {
format!("{}/", path)
format!(r"{}\", path)
} else {
path.to_string()
}
@ -130,11 +117,19 @@ fn get_full_path_name_w(path_str: &str) -> Option<String> {
}
/// Global singleton instance of DrivePwdMap
static DRIVE_PWD_MAP: Lazy<Mutex<Drive2PWDmap >> = Lazy::new(|| Mutex::new(Drive2PWDmap::new()));
use std::sync::{Once, Mutex};
/// Public API to access the singleton instance
static INIT: Once = Once::new();
static mut DRIVE_PWD_MAP: Option<Mutex<Drive2PWDmap>> = None;
/// Access the singleton instance
fn get_drive_pwd_map() -> &'static Mutex<Drive2PWDmap> {
&DRIVE_PWD_MAP
unsafe {
INIT.call_once(|| {
DRIVE_PWD_MAP = Some(Mutex::new(Drive2PWDmap::new()));
});
DRIVE_PWD_MAP.as_ref().unwrap()
}
}
/// Test for Drive2PWD map
@ -144,21 +139,23 @@ mod tests {
#[test]
fn test_singleton_set_and_get_pwd() {
// To avoid conflict with other test threads (on testing result),
// use different drive set in multiple singleton tests
let drive_pwd_map = get_drive_pwd_map();
{
let mut map = drive_pwd_map.lock().unwrap();
// Set PWD for drive C
assert!(map.set_pwd(Path::new("C:\\Users\\Example")).is_ok());
// Set PWD for drive X
assert!(map.set_pwd(Path::new(r"X:\Users\Example")).is_ok());
}
{
let mut map = drive_pwd_map.lock().unwrap();
// Get PWD for drive C
assert_eq!(map.get_pwd('C'), Some("C:\\Users\\Example".to_string()));
// Get PWD for drive X
assert_eq!(map.get_pwd('X'), Some(r"X:\Users\Example".to_string()));
// Get PWD for drive E (not set, should return E:\)
// Get PWD for drive E (not set, should return E:\) ???
// 11-21-2024 happened to start nushell from drive E:,
// run toolkit test 'toolkit check pr' then this test failed
// since the singleton has its own state, so this type of test ('not set,
@ -166,7 +163,7 @@ mod tests {
if let Some(pwd_on_e) = get_full_path_name_w("E:") {
assert_eq!(map.get_pwd('E'), Some(pwd_on_e));
} else {
assert_eq!(map.get_pwd('E'), Some("E:\\".to_string()));
assert_eq!(map.get_pwd('E'), Some(r"E:\".to_string()));
}
}
}
@ -176,23 +173,27 @@ mod tests {
let mut drive_map = Drive2PWDmap::new();
// Set PWD for drive C
drive_map.set_pwd(Path::new("C:\\Users\\Home")).unwrap();
assert_eq!(drive_map.set_pwd(Path::new(r"C:\Users\Home")), Ok(()));
// Expand a relative path
let expanded = drive_map.expand_path(Path::new("C:test"));
assert_eq!(expanded, Some(PathBuf::from("C:\\Users\\Home\\test")));
let expanded = drive_map.expand_path(Path::new(r"C:test"));
assert_eq!(expanded, Some(PathBuf::from(r"C:\Users\Home\test")));
// Expand an absolute path
let expanded = drive_map.expand_path(Path::new("C:\\absolute\\path"));
assert_eq!(expanded, Some(PathBuf::from("C:\\absolute\\path")));
let expanded = drive_map.expand_path(Path::new(r"C:\absolute\path"));
assert_eq!(expanded, Some(PathBuf::from(r"C:\absolute\path")));
// Expand with no drive letter
let expanded = drive_map.expand_path(Path::new("\\no_drive"));
let expanded = drive_map.expand_path(Path::new(r"\no_drive"));
assert_eq!(expanded, None);
// Expand with no PWD set for the drive
let expanded = drive_map.expand_path(Path::new("D:test"));
assert_eq!(expanded, Some(PathBuf::from("D:\\test")));
if let Some(pwd_on_d) = get_full_path_name_w("D:") {
assert_eq!(expanded, Some(PathBuf::from(format!(r"{}test", Drive2PWDmap::ensure_trailing_separator(&pwd_on_d)))));
} else {
assert_eq!(expanded, Some(PathBuf::from(r"D:\test")));
}
}
#[test]
@ -200,12 +201,12 @@ mod tests {
let mut drive_map = Drive2PWDmap::new();
// Set PWD for drive C
assert!(drive_map.set_pwd(Path::new("C:\\Users\\Example")).is_ok());
assert_eq!(drive_map.get_pwd('C'), Some("C:\\Users\\Example".to_string()));
assert!(drive_map.set_pwd(Path::new(r"C:\Users\Example")).is_ok());
assert_eq!(drive_map.get_pwd('C'), Some(r"C:\Users\Example".to_string()));
// Set PWD for drive D
assert!(drive_map.set_pwd(Path::new("D:\\Projects")).is_ok());
assert_eq!(drive_map.get_pwd('D'), Some("D:\\Projects".to_string()));
assert!(drive_map.set_pwd(Path::new(r"D:\Projects")).is_ok());
assert_eq!(drive_map.get_pwd('D'), Some(r"D:\Projects".to_string()));
// Get PWD for drive E (not set, should return E:\)
// 11-21-2024 happened to start nushell from drive E:,
@ -216,7 +217,7 @@ mod tests {
if let Some(pwd_on_e) = get_full_path_name_w("E:") {
assert_eq!(drive_map.get_pwd('E'), Some(pwd_on_e));
} else {
assert_eq!(drive_map.get_pwd('E'), Some("E:\\".to_string()));
assert_eq!(drive_map.get_pwd('E'), Some(r"E:\".to_string()));
}
}
@ -225,9 +226,9 @@ mod tests {
let mut drive_map = Drive2PWDmap::new();
// Invalid path (no drive letter)
let result = drive_map.set_pwd(Path::new("\\InvalidPath"));
let result = drive_map.set_pwd(Path::new(r"\InvalidPath"));
assert!(result.is_err());
assert_eq!(result.unwrap_err(), "Invalid path: \\InvalidPath");
assert_eq!(result.unwrap_err(), r"Invalid path: \InvalidPath");
}
#[test]
@ -235,7 +236,7 @@ mod tests {
let mut drive_map = Drive2PWDmap::new();
// Get PWD for a drive not set (e.g., Z)
assert_eq!(drive_map.get_pwd('Z'), Some("Z:\\".to_string()));
assert_eq!(drive_map.get_pwd('Z'), Some(r"Z:\".to_string()));
// Invalid drive letter (non-alphabetic)
assert_eq!(drive_map.get_pwd('1'), None);
@ -257,23 +258,23 @@ mod tests {
/// //assert!(false); // Comment out to verify really tested
/// if cfg!(windows) {
/// // Set PWD for drive C
/// set_pwd_per_drive(Path::new("C:\\Users\\Home")).unwrap();
/// set_pwd_per_drive(Path::new(r"C:\Users\Home")).unwrap();
///
/// // Expand a relative path
/// let expanded = expand_pwd_per_drive(Path::new("C:test"));
/// assert_eq!(expanded, Some(PathBuf::from("C:\\Users\\Home\\test")));
/// assert_eq!(expanded, Some(PathBuf::from(r"C:\Users\Home\test")));
///
/// // Will NOT expand an absolute path
/// let expanded = expand_pwd_per_drive(Path::new("C:\\absolute\\path"));
/// let expanded = expand_pwd_per_drive(Path::new(r"C:\absolute\path"));
/// assert_eq!(expanded, None);
///
/// // Expand with no drive letter
/// let expanded = expand_pwd_per_drive(Path::new("\\no_drive"));
/// let expanded = expand_pwd_per_drive(Path::new(r"\no_drive"));
/// assert_eq!(expanded, None);
///
/// // Expand with no PWD set for the drive
/// let expanded = expand_pwd_per_drive(Path::new("D:test"));
/// assert_eq!(expanded, Some(PathBuf::from("D:\\test")));
/// assert_eq!(expanded, Some(PathBuf::from(r"D:\test")));
/// }
/// ```
pub mod pwd_per_drive_singleton {
@ -338,28 +339,28 @@ pub mod pwd_per_drive_singleton {
#[test]
fn test_usage_for_pwd_per_drive() {
// Set PWD for drive C
assert_eq!(Ok(()), set_pwd_per_drive(Path::new("C:\\Users\\Home")));
// Set PWD for drive F
assert!(set_pwd_per_drive(Path::new(r"F:\Users\Home")).is_ok());
if cfg!(windows) {
// Expand a relative path
let expanded = expand_pwd_per_drive(Path::new("C:test"));
assert_eq!(expanded, Some(PathBuf::from("C:\\Users\\Home\\test")));
let expanded = expand_pwd_per_drive(Path::new("f:test"));
assert_eq!(expanded, Some(PathBuf::from(r"F:\Users\Home\test")));
// Will NOT expand an absolute path
let expanded = expand_pwd_per_drive(Path::new("C:\\absolute\\path"));
let expanded = expand_pwd_per_drive(Path::new(r"F:\absolute\path"));
assert_eq!(expanded, None);
// Expand with no drive letter
let expanded = expand_pwd_per_drive(Path::new("\\no_drive"));
let expanded = expand_pwd_per_drive(Path::new(r"\no_drive"));
assert_eq!(expanded, None);
// Expand with no PWD set for the drive
let expanded = expand_pwd_per_drive(Path::new("D:test"));
assert_eq!(expanded, Some(PathBuf::from("D:\\test")));
let expanded = expand_pwd_per_drive(Path::new("G:test"));
assert_eq!(expanded, Some(PathBuf::from(r"G:\test")));
} else {
// None always
assert_eq!(None, expand_pwd_per_drive(Path::new("C:test")));
assert_eq!(None, expand_pwd_per_drive(Path::new("F:test")));
}
}
}

1
crates/nu-protocol/src/engine/engine_state.rs
View File

@ -957,6 +957,7 @@ impl EngineState {
} else if !path.is_dir() {
Err(error("$env.PWD points to a non-directory", &path))
} else {
let _ = nu_path::set_pwd_per_drive(path.as_std_path());
Ok(path)
}
} else {

2
src/main.rs
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@ -78,8 +78,6 @@ fn main() -> Result<()> {
// Get the current working directory from the environment.
let init_cwd = current_dir_from_environment();
// Sync with PWD-per-drive
let _ = nu_path::set_pwd_per_drive(init_cwd.as_ref());
// Custom additions
let delta = {