comparison rust/hg-core/src/utils/files.rs @ 44265:c18dd48cea4a

rust-pathauditor: add Rust implementation of the `pathauditor`

It does not offer the same flexibility as the Python implementation, but
should check incoming paths just as well.

Differential Revision: https://phab.mercurial-scm.org/D7866

44264:d3f776c4760e

//! Functions for fiddling with files.

use crate::utils::hg_path::{HgPath, HgPathBuf};
use std::iter::FusedIterator;

use std::fs::Metadata;
use std::path::Path;

pub fn get_path_from_bytes(bytes: &[u8]) -> &Path {
    let os_str;

    return path.to_ascii_uppercase();
    #[cfg(unix)]
    path.to_ascii_lowercase()
}

#[derive(Eq, PartialEq, Ord, PartialOrd, Copy, Clone)]
pub struct HgMetadata {
    pub st_dev: u64,
    pub st_mode: u32,
    pub st_nlink: u64,

44265:c18dd48cea4a

//! Functions for fiddling with files.

use crate::utils::hg_path::{HgPath, HgPathBuf};
use std::iter::FusedIterator;

use crate::utils::replace_slice;
use lazy_static::lazy_static;
use std::fs::Metadata;
use std::path::Path;

pub fn get_path_from_bytes(bytes: &[u8]) -> &Path {
    let os_str;

    return path.to_ascii_uppercase();
    #[cfg(unix)]
    path.to_ascii_lowercase()
}

lazy_static! {
    static ref IGNORED_CHARS: Vec<Vec<u8>> = {
        [
            0x200c, 0x200d, 0x200e, 0x200f, 0x202a, 0x202b, 0x202c, 0x202d,
            0x202e, 0x206a, 0x206b, 0x206c, 0x206d, 0x206e, 0x206f, 0xfeff,
        ]
        .iter()
        .map(|code| {
            std::char::from_u32(*code)
                .unwrap()
                .encode_utf8(&mut [0; 3])
                .bytes()
                .collect()
        })
        .collect()
    };
}

fn hfs_ignore_clean(bytes: &[u8]) -> Vec<u8> {
    let mut buf = bytes.to_owned();
    let needs_escaping = bytes.iter().any(|b| *b == b'\xe2' || *b == b'\xef');
    if needs_escaping {
        for forbidden in IGNORED_CHARS.iter() {
            replace_slice(&mut buf, forbidden, &[])
        }
        buf
    } else {
        buf
    }
}

pub fn lower_clean(bytes: &[u8]) -> Vec<u8> {
    hfs_ignore_clean(&bytes.to_ascii_lowercase())
}

#[derive(Eq, PartialEq, Ord, PartialOrd, Copy, Clone)]
pub struct HgMetadata {
    pub st_dev: u64,
    pub st_mode: u32,
    pub st_nlink: u64,