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Wrap OSC 777 in tmux DCS passthrough when running inside tmux #2

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Wrap OSC 777 in tmux DCS passthrough when running inside tmux #2

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8 changes: 7 additions & 1 deletion index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,13 @@ function notify(title: string, body: string): void {
// Sanitize to avoid breaking the escape sequence delimiters (;)
const sTitle = title.replace(/;/g, ":").replace(/\n/g, " ").trim();
const sBody = body.replace(/;/g, ":").replace(/\n/g, " ").trim();
process.stdout.write(`\x1b]777;notify;${sTitle};${sBody}\x07`);
let seq = `\x1b]777;notify;${sTitle};${sBody}\x07`;
// When running inside tmux, wrap in DCS passthrough so the host terminal
// (e.g. Ghostty) actually receives the OSC. Requires `set -g allow-passthrough on`.
if (process.env.TMUX) {
seq = `\x1bPtmux;${seq.replace(/\x1b/g, "\x1b\x1b")}\x1b\\`;
}
process.stdout.write(seq);
}

function formatDuration(ms: number): string | null {
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