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39 lines
1.3 KiB
JavaScript
39 lines
1.3 KiB
JavaScript
.pragma library
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// systemd.unit(5) "String Escaping for Inclusion in Unit Names"
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function escape(str) {
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let out = "";
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for (const ch of str) {
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if (/[A-Za-z0-9:_.]/.test(ch)) {
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out += ch;
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continue;
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}
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if (ch === "/") {
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out += "-";
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continue;
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}
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const code = ch.codePointAt(0);
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out += code < 128 ? "\\x" + code.toString(16).padStart(2, "0") : encodeURIComponent(ch).replace(/%/g, "\\x").toLowerCase();
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}
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return out.startsWith(".") ? "\\x2e" + out.slice(1) : out;
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}
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function hasUnitName(args) {
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return args.some(arg => arg === "--unit" || arg === "-u" || arg.startsWith("--unit="));
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}
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// app-<launcher>-<ApplicationID>-<RANDOM>.scope per systemd.io/DESKTOP_ENVIRONMENTS, the shape xdg-desktop-portal maps back to a desktop id
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function prefixArgs(prefix, desktopId, suffix) {
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const args = prefix.split(" ");
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if (args[0] !== "systemd-run" || !args.includes("--scope") || !desktopId || hasUnitName(args))
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return args;
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const unit = `app-dms-${escape(desktopId)}-${suffix}`;
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if (unit.length + ".scope".length > 255)
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return args;
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return [args[0], `--unit=${unit}`].concat(args.slice(1));
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}
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function randomSuffix() {
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return Date.now().toString(36) + Math.floor(Math.random() * 1679616).toString(36);
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}
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