surma
b9e3e3677d
rg (ripgrep 15.2), grep (ours, on ripgrep's regex crates), find and xargs (ours), sed (uutils 0.3 wrapper), diff and cmp (uutils diffutils 0.6 with -r), fd 10.5, jaq 2.3, env and timeout. userland/spawn is a small Command-like client of the process interface. search-test.nu: 42 cases match native tools.
86 lines
2.1 KiB
Rust
86 lines
2.1 KiB
Rust
// This file is part of the uutils diffutils package.
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//
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// For the full copyright and license information, please view the LICENSE-*
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// files that was distributed with this source code.
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use std::{
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env::ArgsOs,
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ffi::{OsStr, OsString},
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iter::Peekable,
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path::{Path, PathBuf},
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process::ExitCode,
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};
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mod cmp;
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mod context_diff;
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mod diff;
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mod ed_diff;
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mod macros;
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mod normal_diff;
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mod params;
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mod side_diff;
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mod unified_diff;
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mod utils;
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/// # Panics
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/// Panics if the binary path cannot be determined
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fn binary_path(args: &mut Peekable<ArgsOs>) -> PathBuf {
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match args.peek() {
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Some(ref s) if !s.is_empty() => PathBuf::from(s),
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_ => std::env::current_exe().unwrap(),
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}
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}
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/// #Panics
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/// Panics if path has no UTF-8 valid name
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fn name(binary_path: &Path) -> &OsStr {
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binary_path.file_stem().unwrap()
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}
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const VERSION: &str = env!("CARGO_PKG_VERSION");
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fn usage(name: &str) {
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println!("{name} {VERSION} (multi-call binary)\n");
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println!("Usage: {name} [function [arguments...]]\n");
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println!("Currently defined functions:\n");
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println!(" cmp, diff\n");
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}
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fn second_arg_error(name: &OsStr) -> ! {
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eprintln!("Expected utility name as second argument, got nothing.");
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usage(&name.to_string_lossy());
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std::process::exit(0);
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}
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fn main() -> ExitCode {
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let mut args = std::env::args_os().peekable();
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let exe_path = binary_path(&mut args);
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let exe_name = name(&exe_path);
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let util_name = if exe_name.as_encoded_bytes().ends_with(b"diffutils") {
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// Discard the item we peeked.
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let _ = args.next();
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args.peek()
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.cloned()
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.unwrap_or_else(|| second_arg_error(exe_name))
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} else {
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OsString::from(exe_name)
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};
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match util_name.as_encoded_bytes() {
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name if name.ends_with(b"diff") => diff::main(args),
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name if name.ends_with(b"cmp") => cmp::main(args),
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name => {
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use std::io::{stderr, Write as _};
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let _ = writeln!(
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stderr(),
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"{}: utility not supported",
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String::from_utf8_lossy(name)
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);
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ExitCode::from(2)
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}
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}
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}
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