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use std::fs::{File};
use crate::date_time_ext::DateTimeExt;
use crate::directory_ext_impl::DirectoryExtImpl;
use crate::file_ext_impl::FileExtImpl;
use crate::path_ext_impl::PathExtImpl;
use crate::symbol::SYMBOL;
use crate::symlink_ext_impl::SymlinkExtImpl;
use crate::user_ext_impl::UserExtImpl;
#[cfg(test)]
mod tests;
mod date_time_ext;
mod symbol;
mod file_ext_impl;
mod path_ext_impl;
mod directory_ext_impl;
mod symlink_ext_impl;
mod user_ext_impl;
mod filter_string;
pub struct FileExt;
impl FileExt {
/// Returns portion of a file of specified range. Range described as starting from byte M up to byte N.
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn partial_read() {
/// let path = "test/index.html";
/// let file_raw_bytes = FileExt::read_file_partially(path, 4, 10).unwrap();
/// let content = String::from_utf8(file_raw_bytes).unwrap();
///
/// let expected_content = "CTYPE h";
///
/// assert_eq!(expected_content, content);
/// }
/// ```
pub fn read_file_partially(filepath: &str, start: u64, end: u64) -> Result<Vec<u8>, String> {
FileExtImpl::read_file_partially(filepath, start, end)
}
/// Returns file content
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn file_content() {
/// let path = "test/index.html";
/// let file_raw_bytes = FileExt::read_file(path).unwrap();
/// let content = String::from_utf8(file_raw_bytes).unwrap();
///
/// let content_escaped_newline_carriage_return = str::replace(content.as_str(), "\r\n", "\n");
///
/// let expected_content = "<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n <meta charset=\"UTF-8\">\n <title>Title</title>\n</head>\n<body>\n\n</body>\n</html>";
///
/// assert_eq!(expected_content, content_escaped_newline_carriage_return);
/// }
/// ```
pub fn read_file(filepath: &str) -> Result<Vec<u8>, String> {
FileExtImpl::read_file(filepath)
}
/// Returns file modification timestamp as nanoseconds in Unix epoch
/// # Examples
///
/// ```
/// use std::{thread, time};
/// use file_ext::FileExt;
/// #[test]
/// fn modification_timestamp() {
///
/// let content = "data".as_bytes();
/// let path = "modification_timestamp-test.content";
///
/// FileExt::create_file(path).unwrap();
/// FileExt::write_file(path, content).unwrap();
///
/// let does_exist = FileExt::does_file_exist(path);
/// assert!(does_exist);
///
/// let modified_timestamp = FileExt::file_modified_utc(path).unwrap();
///
/// let one_second = time::Duration::from_secs(1);
/// thread::sleep(one_second);
///
/// FileExt::write_file(path, "\nnewline and some data".as_bytes()).unwrap();
///
/// let after_update_modified_timestamp = FileExt::file_modified_utc(path).unwrap();
/// assert!(after_update_modified_timestamp > modified_timestamp);
///
///
/// FileExt::delete_file(path).unwrap();
/// let doesnt_exist = !FileExt::does_file_exist(path);
/// assert!(doesnt_exist);
/// }
/// ```
pub fn file_modified_utc(filepath: &str) -> Result<u128, String> {
let boxed_open = File::open(filepath);
if boxed_open.is_err() {
let error_msg = boxed_open.err().unwrap();
let error = format!("<p>Unable to open file: {}</p> <p>error: {}</p>", filepath, error_msg);
return Err(error)
}
let file : File = boxed_open.unwrap();
let boxed_metadata = file.metadata();
if boxed_metadata.is_err() {
let error_msg = boxed_metadata.err().unwrap();
let error = format!("<p>Unable to open file: {}</p> <p>error: {}</p>", filepath, error_msg);
return Err(error)
}
let metadata = boxed_metadata.unwrap();
let boxed_last_modified_time = metadata.modified();
if boxed_last_modified_time.is_err() {
let error_msg = boxed_last_modified_time.err().unwrap();
let error = format!("<p>Unable to open file: {}</p> <p>error: {}</p>", filepath, error_msg);
return Err(error)
}
let modified_time = boxed_last_modified_time.unwrap();
let nanos = DateTimeExt::_system_time_to_unix_nanos(modified_time);
Ok(nanos)
}
#[cfg(target_family = "unix")]
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn unix_path_delimiter() {
/// let expected = SYMBOL.slash.to_string();
/// let actual = FileExt::get_path_separator();
/// }
/// ```
pub fn get_path_separator() -> String {
PathExtImpl::get_path_separator()
}
#[cfg(target_family = "windows")]
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn unix_path_delimiter() {
/// let expected = SYMBOL.reverse_slash.to_string();
/// let actual = FileExt::get_path_separator();
/// }
/// ```
pub fn get_path_separator() -> String { PathExtImpl::get_path_separator() }
/// Will return absolute file path to the working directory
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn absolute_path_to_working_directory() {
/// let boxed_path = FileExt::working_directory();
/// assert!(boxed_path.is_ok());
/// let path = boxed_path.unwrap();
/// }
/// ```
pub fn working_directory() -> Result<String, String> {
PathExtImpl::working_directory()
}
/// Will return absolute file path to the working directory. Same as working_directory function. Kept here to preserve backward compatability.
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn absolute_path_to_working_directory() {
/// let boxed_path = FileExt::absolute_path_to_working_directory();
/// assert!(boxed_path.is_ok());
/// let path = boxed_path.unwrap();
/// }
/// ```
pub fn absolute_path_to_working_directory() -> Result<String, String> {
PathExtImpl::working_directory()
}
/// Will return absolute working directory path appended to the given string
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn absolute_path_to_working_directory() {
/// let boxed_path = FileExt::get_static_filepath("");
/// assert!(boxed_path.is_ok());
/// let path = boxed_path.unwrap();
/// }
/// ```
pub fn get_static_filepath(path: &str) -> Result<String, String> {
let boxed_working_directory = PathExtImpl::absolute_path_to_working_directory();
if boxed_working_directory.is_err() {
let message = boxed_working_directory.err().unwrap();
return Err(message)
}
let working_directory = boxed_working_directory.unwrap();
let absolute_path = [working_directory, path.to_string()].join(SYMBOL.empty_string);
Ok(absolute_path)
}
/// Will try to read from file. If file does not exist, will create and write to it given byte array
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn read_or_create_and_write() {
/// let content = "data".as_bytes();
/// let tmp_folder = FileExt::get_temp_folder_path().unwrap();
///
/// let path = [tmp_folder, "test.txt".to_string()].join(FileExt::get_path_separator().as_str());
///
/// let doesnt_exist = !FileExt::does_file_exist(path.as_str());
/// assert!(doesnt_exist);
///
/// FileExt::read_or_create_and_write(path.as_str(), content).unwrap();
///
/// let does_exist = FileExt::does_file_exist(path.as_str());
/// assert!(does_exist);
///
/// let new_content = "updated data".as_bytes();
/// FileExt::read_or_create_and_write(path.as_str(), new_content).unwrap();
///
/// let file_content = FileExt::read_file(path.as_str()).unwrap();
/// assert_eq!(content, file_content);
///
/// FileExt::delete_file(path.as_str()).unwrap();
/// let doesnt_exist = !FileExt::does_file_exist(path.as_str());
/// assert!(doesnt_exist);
/// }
/// ```
pub fn read_or_create_and_write(path: &str, content: &[u8]) -> Result<Vec<u8>, String> {
FileExtImpl::read_or_create_and_write(path, content)
}
/// Will create a file on the path
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn file_creation_deletion() {
/// let path = "test/file-creation.txt";
///
/// let exists = FileExt::does_file_exist(path);
/// assert!(!exists);
///
/// FileExt::create_file(path).unwrap();
///
/// let content = FileExt::read_file(path).unwrap();
/// assert_eq!(content.len(), 0);
///
/// FileExt::delete_file(path).unwrap();
///
/// let exists = FileExt::does_file_exist(path);
/// assert!(!exists);
/// }
/// ```
pub fn create_file(path: &str) -> Result<(), String> {
FileExtImpl::create_file(path)
}
/// Returns boolean indicating file existence on the path
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn file_exists() {
/// let path = "test/index_rewrite";
/// let exists = FileExt::does_file_exist(path);
/// assert!(exists);
/// }
/// ```
pub fn does_file_exist(path: &str) -> bool {
FileExtImpl::does_file_exist(path)
}
/// Returns boolean indicating directory existence on the path
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn directory_exists() {
/// let path = "test";
/// let exists = FileExt::does_directory_exist(path);
/// assert!(exists);
/// }
/// ```
pub fn does_directory_exist(path: &str) -> bool {
DirectoryExtImpl::does_directory_exist(path)
}
/// Will create a new directory on specified path
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn new_directory_create_delete() {
/// let path = "new_directory";
///
/// let boxed_create = FileExt::create_directory(path);
/// assert!(boxed_create.is_ok());
///
/// assert!(FileExt::does_directory_exist(path));
///
/// let boxed_delete = FileExt::delete_directory(path);
/// assert!(boxed_delete.is_ok());
/// }
/// ```
pub fn create_directory(path: &str) -> Result<(), String> {
DirectoryExtImpl::create_directory(path)
}
/// Will delete directory and all of the content on specified path (won't follow symlinks)
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn new_directory_create_delete() {
/// let path = "new_directory";
///
/// let boxed_create = FileExt::create_directory(path);
/// assert!(boxed_create.is_ok());
///
/// assert!(FileExt::does_directory_exist(path));
///
/// let boxed_delete = FileExt::delete_directory(path);
/// assert!(boxed_delete.is_ok());
/// }
/// ```
pub fn delete_directory(path: &str) -> Result<(), String> {
DirectoryExtImpl::delete_directory(path)
}
/// Returns boolean indicating symlink existence on the path
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn symlink_exists() {
/// let symlink_path = ["test", "index-link2"].join(FileExt::get_path_separator().as_str());
///
/// if FileExt::does_symlink_exist(symlink_path.as_str()) {
/// FileExt::delete_file(symlink_path.as_str()).unwrap();
/// }
///
/// let path = [SYMBOL.empty_string, "test", SYMBOL.empty_string].join(FileExt::get_path_separator().as_str());
/// let path_prefix = FileExt::get_static_filepath(path.as_str()).unwrap();
/// let points_to = [path_prefix.to_string(), "index.html".to_string()].join("");
///
/// let boxed_symlink = FileExt::create_symlink(
/// path_prefix.as_str(),
/// "index-link2",
/// points_to.as_str()
/// );
///
///
/// assert!(boxed_symlink.is_ok());
///
/// let symlink_created = FileExt::does_symlink_exist(symlink_path.as_str());
/// assert!(symlink_created);
///
/// let actual_points_to = FileExt::symlink_points_to(symlink_path.as_str()).unwrap();
/// assert_eq!(points_to, actual_points_to);
///
/// FileExt::delete_file(symlink_path.as_str()).unwrap();
/// }
/// ```
pub fn does_symlink_exist(path: &str) -> bool {
SymlinkExtImpl::does_symlink_exist(path)
}
/// Returns absolute path, symlink points to.
/// Takes 2 parameters: path to the directory, where symlink is located and where symlink points to
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn resolve_symlink_path() {
/// let base_dir = "/home/someuser/folder/subfolder/subsubfolder";
/// let symlink_points_to = "../../subfolder2/subsubfolder2";
///
/// let expected_path = "/home/someuser/folder/subfolder2/subsubfolder2";
/// let actual_path = FileExt::resolve_symlink_path(base_dir, symlink_points_to).unwrap();
///
/// assert_eq!(expected_path, actual_path);
/// }
/// ```
pub fn resolve_symlink_path(symlink_directory: &str, symlink_points_to: &str) -> Result<String, String> {
SymlinkExtImpl::resolve_symlink_path(symlink_directory, symlink_points_to)
}
/// Will write given byte array to a file on the path
/// # Examples
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn write() {
/// let filename = "write-test.content";
/// FileExt::create_file(filename).unwrap();
///
/// let expected_content = "<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n <meta charset=\"UTF-8\">\n <title>Title</title>\n</head>\n<body>\n\n</body>\n</html>";
/// FileExt::write_file(filename, expected_content.as_bytes()).unwrap();
///
/// let actual = FileExt::read_file(filename).unwrap();
/// assert_eq!(actual, expected_content.as_bytes());
///
/// }
/// ```
pub fn write_file(path: &str, file_content: &[u8]) -> Result<(), String> {
FileExtImpl::write_file(path, file_content)
}
/// Will delete file on a given path
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn file_creation_deletion() {
/// let path = "test/file-creation.txt";
///
/// let exists = FileExt::does_file_exist(path);
/// assert!(!exists);
///
/// FileExt::create_file(path).unwrap();
///
/// let content = FileExt::read_file(path).unwrap();
/// assert_eq!(content.len(), 0);
///
/// FileExt::delete_file(path).unwrap();
///
/// let exists = FileExt::does_file_exist(path);
/// assert!(!exists);
/// }
/// ```
pub fn delete_file(path: &str) -> Result<(), String> {
FileExtImpl::delete_file(path)
}
/// Will create symlink on path `symlink_path` with the specified name `symlink_name`.
/// Symlink will point to specific file or directory `symlink_points_to`. Paths are absolute.
/// # Examples
/// ```
/// use file_ext::FileExt;
/// #[test]
///fn symlink_creation() {
/// let symlink_path = "test/index-link";
///
/// if FileExt::does_symlink_exist(symlink_path) {
/// FileExt::delete_file(symlink_path).unwrap();
/// }
///
/// let path_prefix = FileExt::get_static_filepath("/test/").unwrap();
/// let points_to = [path_prefix.to_string(), "index.html".to_string()].join("");
///
/// let boxed_symlink = FileExt::create_symlink(
/// path_prefix.as_str(),
/// "index-link",
/// points_to.as_str());
///
/// assert!(boxed_symlink.is_ok());
///
/// let symlink_created = FileExt::does_symlink_exist(symlink_path);
/// assert!(symlink_created);
///
/// let actual_points_to = FileExt::symlink_points_to(symlink_path).unwrap();
/// assert_eq!(points_to, actual_points_to);
///
/// FileExt::delete_file(symlink_path).unwrap();
///}
///```
#[cfg(target_family = "unix")]
pub fn create_symlink(symlink_path: &str, symlink_name: &str, symlink_points_to: &str) -> Result<(), String> {
SymlinkExtImpl::create_symlink(symlink_path, symlink_name, symlink_points_to)
}
/// Will create symlink on path `symlink_path` with the specified name `symlink_name`.
/// Symlink will point to specific file or directory `symlink_points_to`. Paths are absolute.
/// # Examples
/// ```
/// use file_ext::FileExt;
/// #[test]
///fn symlink_creation() {
/// let symlink_path = "test/index-link";
///
/// if FileExt::does_symlink_exist(symlink_path) {
/// FileExt::delete_file(symlink_path).unwrap();
/// }
///
/// let path_prefix = FileExt::get_static_filepath("/test/").unwrap();
/// let points_to = [path_prefix.to_string(), "index.html".to_string()].join("");
///
/// let boxed_symlink = FileExt::create_symlink(
/// path_prefix.as_str(),
/// "index-link",
/// points_to.as_str());
///
/// assert!(boxed_symlink.is_ok());
///
/// let symlink_created = FileExt::does_symlink_exist(symlink_path);
/// assert!(symlink_created);
///
/// let actual_points_to = FileExt::symlink_points_to(symlink_path).unwrap();
/// assert_eq!(points_to, actual_points_to);
///
/// FileExt::delete_file(symlink_path).unwrap();
///}
///```
#[cfg(target_family = "windows")]
pub fn create_symlink(symlink_path: &str, symlink_name: &str, symlink_points_to: &str) -> Result<(), String> {
SymlinkExtImpl::create_symlink(symlink_path, symlink_name, symlink_points_to)
}
/// Checks if the file is symlink
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn is_link() {
/// let path: String = ["test", "index_rewrite"].join(&FileExt::get_path_separator());
/// let is_symlink = FileExt::is_symlink(path.as_str()).unwrap();
/// assert!(is_symlink);
/// }
/// ```
pub fn is_symlink(path: &str) -> Result<bool, String> {
SymlinkExtImpl::is_symlink(path)
}
/// Returns path to a file, symlink points to
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// fn link_points_to() {
/// let path: String = ["test", "index_rewrite"].join(&FileExt::get_path_separator());
/// let points_to = FileExt::symlink_points_to(path.as_str()).unwrap();
/// assert_eq!("index.html", points_to);
/// }
/// ```
pub fn symlink_points_to(path: &str) -> Result<String, String> {
SymlinkExtImpl::symlink_points_to(path)
}
/// Builds a path from a given node list
/// # Examples
///
/// ```
/// use file_ext::FileExt;
///
/// #[test]
/// #[cfg(target_family = "unix")]
/// fn build_path() {
/// let root = FileExt::root();
/// let folder_up = FileExt::folder_up();
///
/// let node_list =
/// [
/// root.as_str(),
/// "home",
/// "someuser",
/// "folder",
/// "subfolder",
/// "subsubfolder",
/// ];
///
/// let another_node_list =
/// [
/// folder_up.as_str(),
/// folder_up.as_str(),
/// "subfolder2",
/// "subsubfolder2",
/// ];
/// let path = PathExtImpl::build_path(&node_list);
/// let another_path = PathExtImpl::build_path(&another_node_list);
///
/// assert_eq!("/home/someuser/folder/subfolder/subsubfolder", path);
/// assert_eq!("../../subfolder2/subsubfolder2", another_path);
/// }
///
///
/// #[test]
/// #[cfg(target_family = "windows")]
/// fn build_path() {
/// let root = FileExt::root();
/// let folder_up = FileExt::folder_up();
///
/// let node_list =
/// [
/// root.as_str(),
/// "Users",
/// "someuser",
/// "folder",
/// "subfolder",
/// "subsubfolder",
/// ];
///
/// let path = PathExtImpl::build_path(&node_list);
///
/// assert_eq!("C:\\Users\\someuser\\folder\\subfolder\\subsubfolder", path);
/// }
/// ```
pub fn build_path(list: &[&str]) -> String {
PathExtImpl::build_path(list)
}
/// Root node of the system. It is meant to be used in `build_path` function.
/// On Linux and macOS `build_path` function will evaluate it to `/`,
/// on Windows it will be `C:`
pub fn root() -> String {
PathExtImpl::root()
}
/// Folder up, or `..`. It is meant to be used in `build_path` function.
pub fn folder_up() -> String {
PathExtImpl::folder_up()
}
/// Returns name of the user running the process
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// #[cfg(target_family = "unix")]
/// fn current_user() {
/// let boxed_user = FileExt::get_current_user();
/// assert!(boxed_user.is_ok());
///
/// let user = boxed_user.unwrap();
/// }
/// ```
#[cfg(target_family = "unix")]
pub fn get_current_user() -> Result<String, String> {
UserExtImpl::get_current_user()
}
/// Returns name of the user running the process
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// #[cfg(target_family = "windows")]
/// fn current_user() {
/// let boxed_user = FileExt::get_current_user();
/// assert!(boxed_user.is_ok());
///
/// let user = boxed_user.unwrap();
/// }
/// ```
#[cfg(target_family = "windows")]
pub fn get_current_user() -> Result<String, String> {
UserExtImpl::get_current_user()
}
/// Returns domain of the user running the process
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// #[cfg(target_family = "windows")]
/// fn current_user() {
/// let boxed_user_domain = FileExt::get_current_user_domain();
/// assert!(boxed_user_domain.is_ok());
///
/// let domain = boxed_user_domain.unwrap();
/// }
/// ```
#[cfg(target_family = "windows")]
pub fn get_current_user_domain() -> Result<String, String> {
UserExtImpl::get_current_user_domain()
}
/// Returns path to the temporary folder
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// #[cfg(target_family = "windows")]
/// fn temp_folder() {
/// let temp_folder_path = FileExt::get_temp_folder_path().unwrap();
/// assert!(temp_folder_path.starts_with("C:\\Users\\"));
/// assert!(temp_folder_path.ends_with("\\AppData\\Local\\Temp"));
/// }
/// ```
#[cfg(target_family = "windows")]
pub fn get_temp_folder_path() -> Result<String, String>{
PathExtImpl::get_temp_folder_path()
}
/// Returns path to the temporary folder
/// # Examples
///
/// ```
/// use file_ext::FileExt;
/// #[test]
/// #[cfg(target_family = "unix")]
/// fn temp_folder() {
/// let temp_folder_path = FileExt::get_temp_folder_path().unwrap();
/// assert_eq!(temp_folder_path, "/tmp")
/// }
/// ```
#[cfg(target_family = "unix")]
pub fn get_temp_folder_path() -> Result<String, String>{
PathExtImpl::get_temp_folder_path()
}
}