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Merged
merged 3 commits into from
Oct 14, 2025
Merged

detect Bun installs in CLI update banner #5074

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a4b6286
Fixes #5012 Update upgrade instructions for Bun installs
nornagon-openai Oct 10, 2025
8d6eb89
tighten up JS a bit
bolinfest Oct 14, 2025
41d7d28
prettier
bolinfest Oct 14, 2025
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36 changes: 35 additions & 1 deletion codex-cli/bin/codex.js
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Original file line number Diff line number Diff line change
Expand Up @@ -80,16 +80,50 @@ function getUpdatedPath(newDirs) {
return updatedPath;
}

function detectPackageManager() {
const userAgent = process.env.npm_config_user_agent || "";
if (/\bbun\//.test(userAgent)) {
return "bun";
}

const execPath = process.env.npm_execpath || "";
if (execPath.includes("bun")) {
return "bun";
}

if (
process.env.BUN_INSTALL ||
process.env.BUN_INSTALL_GLOBAL_DIR ||
process.env.BUN_INSTALL_BIN_DIR
) {
return "bun";
}

if (userAgent) {
return "npm";
}

return null;
}

const additionalDirs = [];
const pathDir = path.join(archRoot, "path");
if (existsSync(pathDir)) {
additionalDirs.push(pathDir);
}
const updatedPath = getUpdatedPath(additionalDirs);

const env = { ...process.env, PATH: updatedPath };
const packageManager = detectPackageManager();
if (packageManager === "bun") {
env.CODEX_MANAGED_BY_BUN = "1";
} else {
env.CODEX_MANAGED_BY_NPM = "1";
}

const child = spawn(binaryPath, process.argv.slice(2), {
stdio: "inherit",
env: { ...process.env, PATH: updatedPath, CODEX_MANAGED_BY_NPM: "1" },
env,
});

child.on("error", (err) => {
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10 changes: 9 additions & 1 deletion codex-rs/tui/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -310,6 +310,7 @@ async fn run_ratatui_app(

let current_version = env!("CARGO_PKG_VERSION");
let exe = std::env::current_exe()?;
let managed_by_bun = std::env::var_os("CODEX_MANAGED_BY_BUN").is_some();
let managed_by_npm = std::env::var_os("CODEX_MANAGED_BY_NPM").is_some();

let mut content_lines: Vec<Line<'static>> = vec![
Expand All @@ -330,7 +331,14 @@ async fn run_ratatui_app(
Line::from(""),
];

if managed_by_npm {
if managed_by_bun {
let bun_cmd = "bun install -g @openai/codex@latest";
content_lines.push(Line::from(vec![
"Run ".into(),
bun_cmd.cyan(),
" to update.".into(),
]));
} else if managed_by_npm {
let npm_cmd = "npm install -g @openai/codex@latest";
content_lines.push(Line::from(vec![
"Run ".into(),
Expand Down
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