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Support downloading the emulator for more architectures #89

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Merged
orsinium merged 2 commits into from
Jul 16, 2026
Merged

Support downloading the emulator for more architectures #89

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0b63f24
Add matrix of likely-to-be-supported architectures for emulator
oli-obk Jul 2, 2026
c154704
Give some extra information on failure to download emulator
oli-obk Jul 14, 2026
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40 changes: 23 additions & 17 deletions src/commands/emulator.rs
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
use crate::args::EmulatorArgs;
use crate::langs::run_cmd;
use anyhow::{Context, Result, bail};
use anyhow::{Context, Result};
use flate2::read::GzDecoder;
use std::fs::File;
use std::path::Path;
Expand Down Expand Up @@ -73,18 +73,17 @@ fn format_args(args: &EmulatorArgs) -> Vec<&str> {
fn download_emulator(bin_path: &Path) -> Result<()> {
// Send HTTP request.
let url = get_release_url();
let resp = ureq::get(&url).call().context("send HTTP request")?;
let resp = ureq::get(&url)
.call()
.context("send HTTP request")
.context(url).context("check out https://github.com/firefly-zero/firefly-emulator/releases for supported targets")?;
let body = resp.into_body().into_reader();

// Extract archive.
if url.ends_with(".tar.gz") || url.ends_with(".tgz") {
let tar = GzDecoder::new(body);
let mut archive = Archive::new(tar);
let vfs = bin_path.parent().unwrap();
archive.unpack(vfs).context("extract binary")?;
} else {
bail!("unsupported archive format")
}
let tar = GzDecoder::new(body);
let mut archive = Archive::new(tar);
let vfs = bin_path.parent().unwrap();
archive.unpack(vfs).context("extract binary")?;

// chmod.
#[cfg(unix)]
Expand All @@ -100,13 +99,20 @@ fn download_emulator(bin_path: &Path) -> Result<()> {
}

fn get_release_url() -> String {
#[cfg(target_os = "windows")]
const SUFFIX: &str = "x86_64-pc-windows-msvc.tgz";
#[cfg(target_os = "macos")]
const SUFFIX: &str = "aarch64-apple-darwin.tgz";
#[cfg(target_os = "linux")]
const SUFFIX: &str = "x86_64-unknown-linux-gnu.tgz";
let (arch, abi) = cfg_select! {
target_arch = "x86_64" => ("x86_64", ""),
target_arch = "x86" => ("i686", ""),
target_arch = "aarch64" => ("aarch64", ""),
target_arch = "arm" => ("arm", "eabihf"),
_ => compile_error!("unsupported architecture"),
};
let os = cfg_select! {
target_os = "windows" => "windows-msvc",
target_os = "macos" => "apple-darwin",
target_os = "linux" => "unknown-linux-gnu",
_ => compile_error!("unsupported os"),
};

let repo = "https://github.com/firefly-zero/firefly-emulator";
format!("{repo}/releases/latest/download/firefly-emulator-{SUFFIX}")
format!("{repo}/releases/latest/download/firefly-emulator-{arch}-{os}{abi}.tgz")
}
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