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use cargo_metadata::MetadataCommand;
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use rustc_version::{Channel, Version};
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use std::path::Path;
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use std::{
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env, fmt,
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process::{self, Command, Stdio},
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};
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#[derive(serde_derive::Deserialize, Default)]
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struct CTRConfig {
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name: String,
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author: String,
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description: String,
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icon: String,
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}
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#[derive(Ord, PartialOrd, PartialEq, Eq, Debug)]
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struct CommitDate {
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year: i32,
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month: i32,
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day: i32,
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}
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impl CommitDate {
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fn parse(date: &str) -> Option<Self> {
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let mut iter = date.split('-');
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let year = iter.next()?.parse().ok()?;
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let month = iter.next()?.parse().ok()?;
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let day = iter.next()?.parse().ok()?;
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Some(Self { year, month, day })
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}
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}
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impl fmt::Display for CommitDate {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "{:04}-{:02}-{:02}", self.year, self.month, self.day)
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}
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}
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const MINIMUM_COMMIT_DATE: CommitDate = CommitDate {
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year: 2021,
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month: 10,
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day: 1,
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};
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const MINIMUM_RUSTC_VERSION: Version = Version::new(1, 56, 0);
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fn main() {
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check_rust_version();
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let optimization_level = match env::args().any(|arg| arg == "--release") {
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true => String::from("release"),
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false => String::from("debug"),
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};
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// Skip `cargo 3ds`
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let mut args = env::args().skip(2);
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let command = args.next();
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let must_link = match command {
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None => panic!("No command specified, try with \"build\" or \"link\""),
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Some(s) => match s.as_str() {
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"build" => false,
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"link" => true,
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_ => panic!("Invalid command, try with \"build\" or \"link\""),
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},
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};
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build_elf(args);
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let app_conf = get_metadata();
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build_3dsx(&app_conf, &optimization_level);
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if must_link {
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link(&app_conf.name, &optimization_level);
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}
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}
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fn check_rust_version() {
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let rustc_version = rustc_version::version_meta().unwrap();
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if rustc_version.channel > Channel::Nightly {
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println!("cargo-3ds requires a nightly rustc version.");
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println!(
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"Please run `rustup override set nightly` to use nightly in the \
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current directory."
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);
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process::exit(1);
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}
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let old_version: bool = MINIMUM_RUSTC_VERSION > rustc_version.semver;
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let old_commit = match rustc_version.commit_date {
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None => false,
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Some(date) => {
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MINIMUM_COMMIT_DATE
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> CommitDate::parse(&date).expect("could not parse `rustc --version` commit date")
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}
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};
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if old_version || old_commit {
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println!(
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"cargo-3ds requires rustc nightly version >= {}",
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MINIMUM_COMMIT_DATE,
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);
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println!("Please run `rustup update nightly` to upgrade your nightly version");
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process::exit(1);
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}
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}
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fn build_elf(args: std::iter::Skip<env::Args>) {
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let mut process = Command::new("cargo")
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.arg("build")
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.arg("-Z")
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.arg("build-std")
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.arg("--target")
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.arg("armv6k-nintendo-3ds")
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.args(args)
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.stdin(Stdio::inherit())
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.stdout(Stdio::inherit())
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.stderr(Stdio::inherit())
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.spawn()
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.unwrap();
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let status = process.wait().unwrap();
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if !status.success() {
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process::exit(status.code().unwrap_or(1));
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}
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}
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fn get_metadata() -> CTRConfig {
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let metadata = MetadataCommand::new()
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.exec()
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.expect("Failed to get cargo metadata");
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let root_crate = metadata.root_package().expect("No root crate found");
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let mut icon = String::from("./icon.png");
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if !Path::new(&icon).exists() {
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icon = format!(
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"{}/libctru/default_icon.png",
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env::var("DEVKITPRO").unwrap()
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)
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}
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CTRConfig {
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name: root_crate.name.clone(),
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author: root_crate.authors[0].clone(),
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description: root_crate
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.description
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.clone()
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.unwrap_or_else(|| String::from("Homebrew Application")),
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icon,
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}
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}
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fn build_3dsx(config: &CTRConfig, opt_lvl: &str) {
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let mut process = Command::new("smdhtool")
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.arg("--create")
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.arg(&config.name)
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.arg(&config.description)
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.arg(&config.author)
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.arg(&config.icon)
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.arg(format!(
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"./target/armv6k-nintendo-3ds/{}/{}.smdh",
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opt_lvl, config.name
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))
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.stdin(Stdio::inherit())
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.stdout(Stdio::inherit())
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.stderr(Stdio::inherit())
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.spawn()
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.unwrap();
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let status = process.wait().unwrap();
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if !status.success() {
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process::exit(status.code().unwrap_or(1));
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}
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let mut command = Command::new("3dsxtool");
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let mut process = command
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.arg(format!(
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"./target/armv6k-nintendo-3ds/{}/{}.elf",
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opt_lvl, config.name
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))
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.arg(format!(
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"./target/armv6k-nintendo-3ds/{}/{}.3dsx",
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opt_lvl, config.name
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))
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.arg(format!(
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|
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"--smdh=./target/armv6k-nintendo-3ds/{}/{}.smdh",
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opt_lvl, config.name
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));
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|
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// If romfs directory exists, automatically include it
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|
|
if Path::new("./romfs").is_dir() {
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|
|
process = process.arg("--romfs=\"./romfs\"");
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}
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let mut process = process
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.stdin(Stdio::inherit())
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.stdout(Stdio::inherit())
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.stderr(Stdio::inherit())
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.spawn()
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.unwrap();
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let status = process.wait().unwrap();
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if !status.success() {
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process::exit(status.code().unwrap_or(1));
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}
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}
|
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|
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fn link(name: &str, opt_lvl: &str) {
|
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|
|
let mut process = Command::new("3dslink")
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|
|
|
.arg(format!(
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|
|
"./target/armv6k-nintendo-3ds/{}/{}.3dsx",
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|
|
opt_lvl, name
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))
|
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|
.stdin(Stdio::inherit())
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|
|
.stdout(Stdio::inherit())
|
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|
|
.stderr(Stdio::inherit())
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|
|
.spawn()
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|
|
.unwrap();
|
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|
let status = process.wait().unwrap();
|
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|
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|
|
if !status.success() {
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|
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process::exit(status.code().unwrap_or(1));
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|
|
}
|
|
|
|
}
|