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extern crate num_cpus;
use self::num_cpus::get;
use gitignore::*;
use regex::RegexSet;
use std::fs::File;
use std::fs::Metadata;
use std::io::prelude::*;
use std::path::PathBuf;
#[cfg(target_os = "linux")]
use std::os::linux::fs::MetadataExt;
#[cfg(any(
target_os = "macos",
target_os = "freebsd",
target_os = "netbsd",
target_os = "dragonfly",
target_os = "solaris"
))]
use std::os::unix::fs::MetadataExt;
#[cfg(target_os = "linux")]
pub fn size(m: &Metadata, blocks: bool) -> u64 {
if blocks {
m.st_blocks() * 512
} else {
m.len()
}
}
#[cfg(any(target_os = "windows", target_os = "redox"))]
pub fn size(m: &Metadata, _: bool) -> u64 {
m.len()
}
#[cfg(any(
target_os = "macos",
target_os = "freebsd",
target_os = "netbsd",
target_os = "dragonfly",
target_os = "solaris"
))]
pub fn size(m: &Metadata, blocks: bool) -> u64 {
if blocks {
m.blocks() * 512
} else {
m.len()
}
}
pub fn mk_ignores(in_paths: &PathBuf, maybe_ignore: &Option<RegexSet>) -> Option<RegexSet> {
if let Some(ref ignore) = *maybe_ignore {
Some(ignore.to_owned())
} else if let (ignore_path, Ok(mut file)) = {
let mut ignore_path = in_paths.clone();
ignore_path.push(".ignore");
(ignore_path.clone(), File::open(ignore_path.clone()))
} {
let mut contents = String::new();
file.read_to_string(&mut contents)
.expect("File read failed.");
Some(file_contents_to_regex(&contents, &ignore_path))
} else if let (gitignore_path, Ok(mut file)) = {
let mut gitignore_path = in_paths.clone();
gitignore_path.push(".gitignore");
(gitignore_path.clone(), File::open(gitignore_path))
} {
let mut contents = String::new();
file.read_to_string(&mut contents)
.expect("File read failed.");
Some(file_contents_to_regex(&contents, &gitignore_path))
} else if let (darcs_path, Ok(mut file)) = {
let mut darcs_path = in_paths.clone();
darcs_path.push("_darcs/prefs/boring");
(darcs_path.clone(), File::open(darcs_path))
} {
let mut contents = String::new();
file.read_to_string(&mut contents)
.expect("File read failed.");
Some(darcs_contents_to_regex(&contents, &darcs_path))
} else {
None
}
}
pub fn get_processors() -> usize {
let n = get();
if n > 1 {
n - 1
} else {
n
}
}