mirror of
https://github.com/uutils/coreutils
synced 2024-12-17 00:23:18 +00:00
ecf248c5e3
This patch begins the work of modernizing uutils to work with 1.0-ish Rust. In particular, it 1. Updates to the latest submodules. 2. Convert mkmain.rs, mkuutils.rs, and src/uutils/uutils.rs to new slice syntax and use of new io, fs, and path APIs. 3. Convert src/common/util.rs to new io, fs, and path APIs. 4. Convert fmt to use new APIs.
56 lines
2.3 KiB
Rust
56 lines
2.3 KiB
Rust
#![feature(exit_status)]
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use std::env;
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use std::fs::File;
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use std::io::{Read, Write};
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fn main() {
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let args : Vec<String> = env::args().collect();
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if args.len() < 3 {
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println!("usage: mkuutils <outfile> <crates>");
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env::set_exit_status(1);
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return;
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}
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let mut crates = String::new();
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let mut util_map = String::new();
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let mut hashsum = false;
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for prog in args[2..].iter() {
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match &prog[..] {
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"hashsum" | "md5sum" | "sha1sum" | "sha224sum" | "sha256sum" | "sha384sum" | "sha512sum" => {
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if !hashsum {
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crates.push_str("extern crate hashsum;\n");
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util_map.push_str("map.insert(\"hashsum\", hashsum::uumain);\n");
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util_map.push_str("map.insert(\"md5sum\", hashsum::uumain);\n");
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util_map.push_str("map.insert(\"sha1sum\", hashsum::uumain);\n");
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util_map.push_str("map.insert(\"sha224sum\", hashsum::uumain);\n");
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util_map.push_str("map.insert(\"sha256sum\", hashsum::uumain);\n");
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util_map.push_str("map.insert(\"sha384sum\", hashsum::uumain);\n");
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util_map.push_str("map.insert(\"sha512sum\", hashsum::uumain);\n");
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hashsum = true;
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}
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}
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"true" => util_map.push_str("fn uutrue(_: Vec<String>) -> i32 { 0 }\nmap.insert(\"true\", uutrue);\n"),
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"false" => util_map.push_str("fn uufalse(_: Vec<String>) -> i32 { 1 }\nmap.insert(\"false\", uufalse);\n"),
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_ => {
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crates.push_str(&(format!("extern crate {0} as uu{0};\n", prog))[..]);
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util_map.push_str(&(format!("map.insert(\"{prog}\", uu{prog}::uumain as fn(Vec<String>) -> i32);\n", prog = prog))[..]);
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}
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}
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}
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let outfile = &(args[1])[..];
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// XXX: this all just assumes that the IO works correctly
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let mut out = File::create(outfile).unwrap();
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let mut input = File::open("src/uutils/uutils.rs").unwrap();
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let mut template = String::new();
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input.read_to_string(&mut template).unwrap();
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let template = template;
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let main = template.replace("@CRATES@", &crates[..]).replace("@UTIL_MAP@", &util_map[..]);
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match out.write_all(main.as_bytes()) {
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Err(e) => panic!("{}", e),
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_ => (),
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}
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}
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