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chmod: update for latest Rust

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This commit is contained in:
Arcterus 2014-11-10 20:11:48 -08:00
parent a5d70763bc
commit a672f5c768
1 changed files with 29 additions and 24 deletions
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53
src/chmod/chmod.rs
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@ -21,6 +21,8 @@ extern crate regex;
use std::io::fs;
use std::io::fs::PathExtensions;
use std::io::IoError;
use std::mem;
use std::num::from_str_radix;
use regex::Regex;
@ -78,9 +80,12 @@ Each MODE is of the form '[ugoa]*([-+=]([rwxXst]*|[ugo]))+|[-+=]?[0-7]+'.",
let preserve_root = matches.opt_present("preserve-root");
let recursive = matches.opt_present("recursive");
let fmode = matches.opt_str("reference").and_then(|fref| {
match native::io::file::stat(&fref.to_c_str()) {
Ok(stat) => Some(stat.perm),
Err(f) => crash!(1, "{}", f)
let mut stat = unsafe { mem::uninitialized() };
let statres = unsafe { libc::stat(fref.as_slice().as_ptr() as *const i8, &mut stat as *mut libc::stat) };
if statres == 0 {
Some(stat.st_mode)
} else {
crash!(1, "{}", IoError::last_error())
}
});
let cmode =
@ -140,7 +145,7 @@ fn verify_mode(mode: &str) -> Result<(), String> {
Ok(())
}
fn chmod(files: Vec<String>, changes: bool, quiet: bool, verbose: bool, preserve_root: bool, recursive: bool, fmode: Option<u64>, cmode: Option<&String>) -> Result<(), int> {
fn chmod(files: Vec<String>, changes: bool, quiet: bool, verbose: bool, preserve_root: bool, recursive: bool, fmode: Option<u32>, cmode: Option<&String>) -> Result<(), int> {
let mut r = Ok(());
for filename in files.iter() {
@ -176,28 +181,29 @@ fn chmod(files: Vec<String>, changes: bool, quiet: bool, verbose: bool, preserve
r
}
fn chmod_file(file: &Path, name: &str, changes: bool, quiet: bool, verbose: bool, fmode: Option<u64>, cmode: Option<&String>) -> Result<(), int> {
fn chmod_file(file: &Path, name: &str, changes: bool, quiet: bool, verbose: bool, fmode: Option<u32>, cmode: Option<&String>) -> Result<(), int> {
let path = name.to_c_str();
match fmode {
Some(mode) => {
match native::io::file::chmod(&path, mode as uint) {
Ok(_) => { /* TODO: handle changes, quiet, and verbose */ }
Err(f) => {
show_error!("{}", f);
return Err(1);
}
if unsafe { libc::chmod(path.as_ptr(), mode) } == 0 {
// TODO: handle changes, quiet, and verbose
} else {
show_error!("{}", IoError::last_error());
return Err(1);
}
}
None => {
// TODO: make the regex processing occur earlier (i.e. once in the main function)
static REGEXP: regex::Regex = regex!(r"^(([ugoa]*)((?:[-+=](?:[rwxXst]*|[ugo]))+))|([-+=]?[0-7]+)$");
let mut fperm = match native::io::file::stat(&path) {
Ok(stat) => stat.perm,
Err(f) => {
show_error!("{}", f);
let mut stat = unsafe { mem::uninitialized() };
let statres = unsafe { libc::stat(path.as_ptr(), &mut stat as *mut libc::stat) };
let mut fperm =
if statres == 0 {
stat.st_mode
} else {
show_error!("{}", IoError::last_error());
return Err(1);
}
};
};
for mode in cmode.unwrap().as_slice().split(',') { // cmode is guaranteed to be Some in this case
let cap = REGEXP.captures(mode).unwrap(); // mode was verified earlier, so this is safe
if cap.at(1) != "" {
@ -273,7 +279,7 @@ fn chmod_file(file: &Path, name: &str, changes: bool, quiet: bool, verbose: bool
'+' | '-' | '=' => (ch, change.slice_from(1)),
_ => ('=', change)
};
let mode = from_str_radix::<u64>(slice, 8).unwrap(); // already verified
let mode = from_str_radix::<u32>(slice, 8).unwrap(); // already verified
match action {
'+' => fperm |= mode,
'-' => fperm &= !mode,
@ -281,12 +287,11 @@ fn chmod_file(file: &Path, name: &str, changes: bool, quiet: bool, verbose: bool
_ => unreachable!()
}
}
match native::io::file::chmod(&path, fperm as uint) {
Ok(_) => { /* TODO: see above */ }
Err(f) => {
show_error!("{}", f);
return Err(1);
}
if unsafe { libc::chmod(path.as_ptr(), fperm) } == 0 {
// TODO: see above
} else {
show_error!("{}", IoError::last_error());
return Err(1);
}
}
}