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pytest-rs/crates $ cargo nextest run -j 8 --workspace
    Finished test [unoptimized + debuginfo] target(s) in 0.06s
    Starting 44 tests across 6 binaries
        PASS [   0.045s] lexarg tests::short_opt_equals_sign
        PASS [   0.039s] lexarg tests::test_basic
        PASS [   0.049s] lexarg tests::short_opt_equals_sign_invalid
        PASS [   0.049s] lexarg tests::test_combined
        PASS [   0.051s] lexarg tests::test_dash_args
        PASS [   0.057s] lexarg tests::test_invalid_long_option
        PASS [   0.065s] lexarg tests::test_invalid_short_option

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{
  autosnippets = {
    NeogitCommitMessage = {},
    all = {},
    c = {},
    cobol = {},
    cpp = {},
    cs = {},
    csharp = {},
    css = {},

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相同的colorschema，vim和gvim的颜色差距还是很大的，因为gvim使用X的颜色，而vim只能使用终端提供的颜色，所以造成了二者的显示差异。

xterm开启256色

现在的终端模拟器早就支持256色了，不过默认可能还是8色的。
开启xterm终端，查看xterm终端支持的颜色

命令：
$ tput colors
8

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rm pub_visibility -rf
cargo new pub_visibility -q
cd pub_visibility/


cargo_build() {
    cargo b --release -q
    echo "before strip:"
    ls -lh target/release/pub_visibility
    strip target/release/pub_visibility

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#![feature(let_chains)]
#![feature(cow_is_borrowed)]
use std::borrow::Cow;

fn main() {
    helper_upper_ascii(&mut String::from("hello"));
    helper_upper_ascii(&mut String::from("World"));
    helper_upper_ascii(&mut String::from("ßγ"));
    helper_upper_ascii(&mut String::from("你好"));

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// you need this in your cargo.toml
// reqwest = { version = "0.11.3", features = ["stream"] }
// futures-util = "0.3.14"
// indicatif = "0.15.0"
use std::cmp::min;
use std::fs::File;
use std::io::Write;

use reqwest::Client;
use indicatif::{ProgressBar, ProgressStyle};

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#[derive(Debug)]
struct User { id: u32, pid: u32, name: String, }

fn set_up_option() -> Vec<Option<User>> {
    // 注意修改了顺序
    vec![Some(User { id: 0, pid: 1, name: "admin1".to_string(), }),
         Some(User { id: 2, pid: 2, name: "admin3".to_string(), }),
         Some(User { id: 1, pid: 1, name: "admin2".to_string(), }),
         Some(User { id: 3, pid: 2, name: "admin4".to_string(), })]
}