1#!/usr/bin/env node
2
3const HELP = `
4USAGE
5 zed-local [options] [zed args]
6
7SUMMARY
8 Runs 1-6 instances of Zed using a locally-running collaboration server.
9 Each instance of Zed will be signed in as a different user specified in
10 either \`.admins.json\` or \`.admins.default.json\`.
11
12OPTIONS
13 --help Print this help message
14 --release Build Zed in release mode
15 -2, -3, -4, ... Spawn multiple Zed instances, with their windows tiled.
16 --top Arrange the Zed windows so they take up the top half of the screen.
17 --stable Use stable Zed release installed on local machine for all instances (except for the first one).
18`.trim();
19
20const { spawn, execFileSync } = require("child_process");
21const assert = require("assert");
22
23let users;
24if (process.env.SEED_PATH) {
25 users = require(process.env.SEED_PATH).admins;
26} else {
27 users = require("../crates/collab/seed.default.json").admins;
28 try {
29 const defaultUsers = users;
30 const customUsers = require("../crates/collab/seed.json").admins;
31 assert(customUsers.length > 0);
32 users = customUsers.concat(
33 defaultUsers.filter((user) => !customUsers.includes(user)),
34 );
35 } catch (_) {}
36}
37
38const RESOLUTION_REGEX = /(\d+) x (\d+)/;
39const DIGIT_FLAG_REGEX = /^--?(\d+)$/;
40
41let instanceCount = 1;
42let isReleaseMode = false;
43let isTop = false;
44let othersOnStable = false;
45let isStateful = false;
46
47const args = process.argv.slice(2);
48while (args.length > 0) {
49 const arg = args[0];
50
51 const digitMatch = arg.match(DIGIT_FLAG_REGEX);
52 if (digitMatch) {
53 instanceCount = parseInt(digitMatch[1]);
54 } else if (arg === "--release") {
55 isReleaseMode = true;
56 } else if (arg == "--stateful") {
57 isStateful = true;
58 } else if (arg === "--top") {
59 isTop = true;
60 } else if (arg === "--help") {
61 console.log(HELP);
62 process.exit(0);
63 } else if (arg === "--stable") {
64 othersOnStable = true;
65 } else {
66 break;
67 }
68
69 args.shift();
70}
71
72// Parse the resolution of the main screen
73const displayInfo = JSON.parse(
74 execFileSync("system_profiler", ["SPDisplaysDataType", "-json"], {
75 encoding: "utf8",
76 }),
77);
78const mainDisplayResolution = displayInfo?.SPDisplaysDataType?.flatMap(
79 (display) => display?.spdisplays_ndrvs,
80)
81 ?.find((entry) => entry?.spdisplays_main === "spdisplays_yes")
82 ?._spdisplays_resolution?.match(RESOLUTION_REGEX);
83if (!mainDisplayResolution) {
84 throw new Error("Could not parse screen resolution");
85}
86const titleBarHeight = 24;
87const screenWidth = parseInt(mainDisplayResolution[1]);
88let screenHeight = parseInt(mainDisplayResolution[2]) - titleBarHeight;
89
90if (isTop) {
91 screenHeight = Math.floor(screenHeight / 2);
92}
93
94// Determine the window size for each instance
95let rows;
96let columns;
97switch (instanceCount) {
98 case 1:
99 [rows, columns] = [1, 1];
100 break;
101 case 2:
102 [rows, columns] = [1, 2];
103 break;
104 case 3:
105 case 4:
106 [rows, columns] = [2, 2];
107 break;
108 case 5:
109 case 6:
110 [rows, columns] = [2, 3];
111 break;
112}
113
114const instanceWidth = Math.floor(screenWidth / columns);
115const instanceHeight = Math.floor(screenHeight / rows);
116
117// If a user is specified, make sure it's first in the list
118const user = process.env.ZED_IMPERSONATE;
119if (user) {
120 users = [user].concat(users.filter((u) => u !== user));
121}
122
123let buildArgs = ["build"];
124let zedBinary = "target/debug/Zed";
125if (isReleaseMode) {
126 buildArgs.push("--release");
127 zedBinary = "target/release/Zed";
128}
129
130try {
131 execFileSync("cargo", buildArgs, { stdio: "inherit" });
132} catch (e) {
133 process.exit(0);
134}
135
136setTimeout(() => {
137 for (let i = 0; i < instanceCount; i++) {
138 const row = Math.floor(i / columns);
139 const column = i % columns;
140 const position = [
141 column * instanceWidth,
142 row * instanceHeight + titleBarHeight,
143 ].join(",");
144 const size = [instanceWidth, instanceHeight].join(",");
145 let binaryPath = zedBinary;
146 if (i != 0 && othersOnStable) {
147 binaryPath = "/Applications/Zed.app/Contents/MacOS/zed";
148 }
149 spawn(binaryPath, i == 0 ? args : [], {
150 stdio: "inherit",
151 env: Object.assign({}, process.env, {
152 ZED_IMPERSONATE: users[i],
153 ZED_WINDOW_POSITION: position,
154 ZED_STATELESS: isStateful && i == 0 ? "1" : "",
155 ZED_ALWAYS_ACTIVE: "1",
156 ZED_SERVER_URL: "http://localhost:3000",
157 ZED_RPC_URL: "http://localhost:8080/rpc",
158 ZED_ADMIN_API_TOKEN: "secret",
159 ZED_WINDOW_SIZE: size,
160 ZED_CLIENT_CHECKSUM_SEED: "development-checksum-seed",
161 RUST_LOG: process.env.RUST_LOG || "info",
162 }),
163 });
164 }
165}, 0.1);