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extern crate path_dedot; #[cfg(windows)] #[macro_use] extern crate slash_formatter; use std::path::{Path, PathBuf}; use std::io; /// Current working directory. pub use path_dedot::CWD; /// The main separator for the target OS. pub use path_dedot::MAIN_SEPARATOR; /// Make `Path` and `PathBuf` have `absolutize` and `absolutize_virtually` method. pub trait Absolutize { /// Get an absolute path. This works even if the path does not exist. /// /// Please read the following examples to know the parsing rules. /// /// # Examples /// /// The dots in a path will be parsed even if it is already an absolute path (which means the path starts with a `MAIN_SEPARATOR` on Unix-like systems). /// /// ``` /// extern crate path_absolutize; /// /// use std::path::Path; /// /// use path_absolutize::*; /// if cfg!(not(windows)) { /// /// let p = Path::new("/path/to/123/456"); /// /// assert_eq!("/path/to/123/456", p.absolutize().unwrap().to_str().unwrap()); /// /// } /// ``` /// /// ``` /// extern crate path_absolutize; /// /// use std::path::Path; /// /// use path_absolutize::*; /// /// if cfg!(not(windows)) { /// /// let p = Path::new("/path/to/./123/../456"); /// /// assert_eq!("/path/to/456", p.absolutize().unwrap().to_str().unwrap()); /// /// } /// ``` /// /// If a path starts with a single dot, the dot means **current working directory**. /// /// ``` /// extern crate path_absolutize; /// /// use std::path::Path; /// /// use path_absolutize::*; /// /// if cfg!(not(windows)) { /// /// let p = Path::new("./path/to/123/456"); /// /// assert_eq!(Path::join(&CWD, Path::new("path/to/123/456")).to_str().unwrap(), p.absolutize().unwrap().to_str().unwrap()); /// /// } /// ``` /// /// If a path starts with a pair of dots, the dots means the parent of **current working directory**. If **current working directory** is **root**, the parent is still **root**. /// /// ``` /// extern crate path_absolutize; /// /// use std::path::Path; /// /// use path_absolutize::*; /// /// if cfg!(not(windows)) { /// /// let p = Path::new("../path/to/123/456"); /// /// let cwd_parent = CWD.parent(); /// /// match cwd_parent { /// Some(cwd_parent) => { /// assert_eq!(Path::join(&cwd_parent, Path::new("path/to/123/456")).to_str().unwrap(), p.absolutize().unwrap().to_str().unwrap()); /// } /// None => { /// assert_eq!(Path::join(Path::new("/"), Path::new("path/to/123/456")).to_str().unwrap(), p.absolutize().unwrap().to_str().unwrap()); /// } /// } /// /// } /// ``` /// /// A path which does not start with a `MAIN_SEPARATOR`, **Single Dot** and **Double Dots**, will act like having a single dot at the start when `absolutize` method is used. /// /// ``` /// extern crate path_absolutize; /// /// use std::path::Path; /// /// use path_absolutize::*; /// /// if cfg!(not(windows)) { /// /// let p = Path::new("path/to/123/456"); /// /// assert_eq!(Path::join(&CWD, Path::new("path/to/123/456")).to_str().unwrap(), p.absolutize().unwrap().to_str().unwrap()); /// /// } /// ``` /// /// ``` /// extern crate path_absolutize; /// /// use std::path::Path; /// /// use path_absolutize::*; /// /// if cfg!(not(windows)) { /// /// let p = Path::new("path/../../to/123/456"); /// /// let cwd_parent = CWD.parent(); /// /// match cwd_parent { /// Some(cwd_parent) => { /// assert_eq!(Path::join(&cwd_parent, Path::new("to/123/456")).to_str().unwrap(), p.absolutize().unwrap().to_str().unwrap()); /// } /// None => { /// assert_eq!(Path::join(Path::new("/"), Path::new("to/123/456")).to_str().unwrap(), p.absolutize().unwrap().to_str().unwrap()); /// } /// } /// /// } /// ``` fn absolutize(&self) -> io::Result<PathBuf>; /// Get an absolute path **only under a specific directory**. This works even if the path does not exist. /// /// Please read the following examples to know the parsing rules. /// /// # Examples /// /// The dots in a path will be parsed even if it is already an absolute path (which means the path starts with a `MAIN_SEPARATOR` on Unix-like systems). /// /// ``` /// extern crate path_absolutize; /// /// use std::path::Path; /// /// use path_absolutize::*; /// /// if cfg!(not(windows)) { /// /// let p = Path::new("/path/to/123/456"); /// /// assert_eq!("/path/to/123/456", p.absolutize_virtually("/").unwrap().to_str().unwrap()); /// /// } /// ``` /// /// ``` /// extern crate path_absolutize; /// /// use std::path::Path; /// /// use path_absolutize::*; /// /// if cfg!(not(windows)) { /// /// let p = Path::new("/path/to/./123/../456"); /// /// assert_eq!("/path/to/456", p.absolutize_virtually("/").unwrap().to_str().unwrap()); /// /// } /// ``` /// /// Every absolute path should under the virtual root. /// /// ``` /// extern crate path_absolutize; /// /// use std::path::Path; /// /// use std::io::ErrorKind; /// /// use path_absolutize::*; /// /// if cfg!(not(windows)) { /// /// let p = Path::new("/path/to/123/456"); /// /// assert_eq!(ErrorKind::InvalidInput, p.absolutize_virtually("/virtual/root").unwrap_err().kind()); /// /// } /// ``` /// /// Every relative path should under the virtual root. /// /// ``` /// extern crate path_absolutize; /// /// use std::path::Path; /// /// use std::io::ErrorKind; /// /// use path_absolutize::*; /// /// if cfg!(not(windows)) { /// /// let p = Path::new("./path/to/123/456"); /// /// assert_eq!(ErrorKind::InvalidInput, p.absolutize_virtually("/virtual/root").unwrap_err().kind()); /// /// } /// ``` /// /// ``` /// extern crate path_absolutize; /// /// use std::path::Path; /// /// use std::io::ErrorKind; /// /// use path_absolutize::*; /// /// if cfg!(not(windows)) { /// /// let p = Path::new("../path/to/123/456"); /// /// assert_eq!(ErrorKind::InvalidInput, p.absolutize_virtually("/virtual/root").unwrap_err().kind()); /// /// } /// ``` /// /// A path which does not start with a `MAIN_SEPARATOR`, **Single Dot** and **Double Dots**, will be located in the virtual root after the `absolutize_virtually` method is used. /// /// ``` /// extern crate path_absolutize; /// /// use std::path::Path; /// /// use path_absolutize::*; /// /// if cfg!(not(windows)) { /// /// let p = Path::new("path/to/123/456"); /// /// assert_eq!("/virtual/root/path/to/123/456", p.absolutize_virtually("/virtual/root").unwrap().to_str().unwrap()); /// /// } /// ``` /// /// ``` /// extern crate path_absolutize; /// /// use std::path::Path; /// /// use path_absolutize::*; /// /// if cfg!(not(windows)) { /// /// let p = Path::new("path/to/../../../../123/456"); /// /// assert_eq!("/virtual/root/123/456", p.absolutize_virtually("/virtual/root").unwrap().to_str().unwrap()); /// /// } /// ``` fn absolutize_virtually<P: AsRef<Path>>(&self, virtual_root: P) -> io::Result<PathBuf>; } impl Absolutize for PathBuf { fn absolutize(&self) -> io::Result<PathBuf> { let path = Path::new(&self); path.absolutize() } fn absolutize_virtually<P: AsRef<Path>>(&self, virtual_root: P) -> io::Result<PathBuf> { let path = Path::new(&self); path.absolutize_virtually(virtual_root) } } mod unix; mod windows;