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Avoid allocating the nix options twide.

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r-vdp 2023-05-29 00:49:08 +02:00
parent 9eb15be5ce
commit f584494464
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1 changed files with 5 additions and 10 deletions
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15
src/main.rs
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@ -1,6 +1,7 @@
use anyhow::Result;
use clap::Parser;
use std::ffi::OsString;
use std::mem;
use std::path::{Path, PathBuf};
use std::process::{self, ExitCode};
@ -137,18 +138,12 @@ fn go(args: Args) -> Result<()> {
nix_options,
} = args;
let nix_options = NixOptions::new(nix_options.map_or(Vec::new(), |vals| {
vals.chunks(2)
let nix_options = NixOptions::new(nix_options.map_or(Vec::new(), |mut vals| {
vals.chunks_mut(2)
.map(|slice| {
(
slice
.get(0)
.expect("Error parsing nix-option values")
.to_owned(),
slice
.get(1)
.expect("Error parsing nix-option values")
.to_owned(),
mem::take(slice.get_mut(0).expect("Error parsing nix-option values")),
mem::take(slice.get_mut(1).expect("Error parsing nix-option values")),
)
})
.collect::<Vec<_>>()