mirror of https://github.com/helix-editor/helix
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
94 lines
3.2 KiB
Rust
94 lines
3.2 KiB
Rust
use etcetera::home_dir;
|
|
use std::path::{Component, Path, PathBuf};
|
|
|
|
/// Replaces users home directory from `path` with tilde `~` if the directory
|
|
/// is available, otherwise returns the path unchanged.
|
|
pub fn fold_home_dir(path: &Path) -> PathBuf {
|
|
if let Ok(home) = home_dir() {
|
|
if path.starts_with(&home) {
|
|
// it's ok to unwrap, the path starts with home dir
|
|
return PathBuf::from("~").join(path.strip_prefix(&home).unwrap());
|
|
}
|
|
}
|
|
|
|
path.to_path_buf()
|
|
}
|
|
|
|
/// Expands tilde `~` into users home directory if avilable, otherwise returns the path
|
|
/// unchanged. The tilde will only be expanded when present as the first component of the path
|
|
/// and only slash follows it.
|
|
pub fn expand_tilde(path: &Path) -> PathBuf {
|
|
let mut components = path.components().peekable();
|
|
if let Some(Component::Normal(c)) = components.peek() {
|
|
if c == &"~" {
|
|
if let Ok(home) = home_dir() {
|
|
// it's ok to unwrap, the path starts with `~`
|
|
return home.join(path.strip_prefix("~").unwrap());
|
|
}
|
|
}
|
|
}
|
|
|
|
path.to_path_buf()
|
|
}
|
|
|
|
/// Normalize a path, removing things like `.` and `..`.
|
|
///
|
|
/// CAUTION: This does not resolve symlinks (unlike
|
|
/// [`std::fs::canonicalize`]). This may cause incorrect or surprising
|
|
/// behavior at times. This should be used carefully. Unfortunately,
|
|
/// [`std::fs::canonicalize`] can be hard to use correctly, since it can often
|
|
/// fail, or on Windows returns annoying device paths. This is a problem Cargo
|
|
/// needs to improve on.
|
|
/// Copied from cargo: <https://github.com/rust-lang/cargo/blob/070e459c2d8b79c5b2ac5218064e7603329c92ae/crates/cargo-util/src/paths.rs#L81>
|
|
pub fn get_normalized_path(path: &Path) -> PathBuf {
|
|
let mut components = path.components().peekable();
|
|
let mut ret = if let Some(c @ Component::Prefix(..)) = components.peek().cloned() {
|
|
components.next();
|
|
PathBuf::from(c.as_os_str())
|
|
} else {
|
|
PathBuf::new()
|
|
};
|
|
|
|
for component in components {
|
|
match component {
|
|
Component::Prefix(..) => unreachable!(),
|
|
Component::RootDir => {
|
|
ret.push(component.as_os_str());
|
|
}
|
|
Component::CurDir => {}
|
|
Component::ParentDir => {
|
|
ret.pop();
|
|
}
|
|
Component::Normal(c) => {
|
|
ret.push(c);
|
|
}
|
|
}
|
|
}
|
|
ret
|
|
}
|
|
|
|
/// Returns the canonical, absolute form of a path with all intermediate components normalized.
|
|
///
|
|
/// This function is used instead of `std::fs::canonicalize` because we don't want to verify
|
|
/// here if the path exists, just normalize it's components.
|
|
pub fn get_canonicalized_path(path: &Path) -> std::io::Result<PathBuf> {
|
|
let path = expand_tilde(path);
|
|
let path = if path.is_relative() {
|
|
std::env::current_dir().map(|current_dir| current_dir.join(path))?
|
|
} else {
|
|
path
|
|
};
|
|
|
|
Ok(get_normalized_path(path.as_path()))
|
|
}
|
|
|
|
pub fn get_relative_path(path: &Path) -> PathBuf {
|
|
let path = if path.is_absolute() {
|
|
let cwdir = std::env::current_dir().expect("couldn't determine current directory");
|
|
path.strip_prefix(cwdir).unwrap_or(path)
|
|
} else {
|
|
path
|
|
};
|
|
fold_home_dir(path)
|
|
}
|