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62 lines
1.3 KiB
62 lines
1.3 KiB
use rayon::prelude::*;
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use std::{
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path::Path,
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io, fs::{self, OpenOptions,},
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};
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use smallvec::SmallVec;
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fn usage() -> !
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{
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eprintln!("fcmprs: Compare files for identity");
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eprintln!("Usage: {} <files...>", std::env::args().next().unwrap());
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std::process::exit(-1)
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}
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mod error;
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use error::ResultPrintExt as _;
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mod map;
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fn main() {
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let (map1, rest) = {
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let mut args = std::env::args().skip(1);
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if let Some(one) = args.next() {
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(one, args)
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} else {
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usage();
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}
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};
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std::process::exit(dbg!(if let Some(map1) = map::map(&map1).discard_msg(format!("Failed to map file {}", map1)) {
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let slice = map1.as_slice();
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let mut ok = true;
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let chk: SmallVec<[_; 32]> = rest.filter_map(|filename| {
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let path = Path::new(&filename);
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if path.exists() && path.is_file() {
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map::map(path).discard_msg(format!("Failed to map file {}", filename))
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.or_else(|| { ok = false; None })
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} else {
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eprintln!("File {} does not exist or is not a normal file", filename);
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ok = false;
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None
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}
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}).collect();
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if !ok {
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-1
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} else {
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match chk.into_par_iter()
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.map(|map| slice == map.as_slice())
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.reduce_with(|x, y| x && y)
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{
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Some(true) => 0,
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Some(false) => 1,
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None => usage(),
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}
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}
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} else {
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-1
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}))
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}
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