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Merged
PabloZaiden merged 1 commit into from
Sep 11, 2026
Merged

test: make no-ssh simulation host-independent #42

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145 changes: 12 additions & 133 deletions tests/examples.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -51,11 +51,9 @@ interface LoggedCommand {
const FAKE_HOST_TOOL = String.raw`#!/usr/bin/env bun
import {
appendFileSync,
chmodSync,
existsSync,
mkdirSync,
readFileSync,
symlinkSync,
writeFileSync,
} from "node:fs";
import path from "node:path";
Expand Down Expand Up @@ -151,145 +149,27 @@ function getPublishedPorts(runArgs) {
return ports;
}

function writeFakeExecutable(filePath, source) {
writeFileSync(filePath, "#!" + process.execPath + "\n" + source + "\n", "utf8");
chmodSync(filePath, 0o755);
}

function linkSystemCommand(binDir, name) {
const sourcePath = path.join("/bin", name);
if (!existsSync(sourcePath)) {
throw new Error("Missing system command for fake runner: " + sourcePath);
}

symlinkSync(sourcePath, path.join(binDir, name));
}

function runNoSshRunner(container, runnerScript) {
const setupRoot = path.join(root, "runner-setup-" + Date.now() + "-" + Math.random().toString(16).slice(2));
const binDir = path.join(setupRoot, "bin");
const homeDir = path.join(setupRoot, "home");
mkdirSync(binDir, { recursive: true });
mkdirSync(homeDir, { recursive: true });

for (const command of ["bash", "mkdir", "dirname", "pwd", "touch", "grep", "id", "chmod", "cat"]) {
linkSystemCommand(binDir, command);
}

writeFakeExecutable(path.join(binDir, "dpkg-query"), 'console.log("not-installed");');
writeFakeExecutable(path.join(binDir, "rm"), "process.exit(0);");
writeFakeExecutable(
path.join(binDir, "node"),
[
'const fs = require("node:fs");',
'const path = require("node:path");',
'const root = process.env.FAKE_RUNNER_ROOT;',
'fs.writeFileSync(path.join(root, "node-invoked"), "true\\n");',
'console.log("v24.0.0");',
].join("\n"),
);
writeFakeExecutable(
path.join(binDir, "npm"),
[
'const fs = require("node:fs");',
'const path = require("node:path");',
'const root = process.env.FAKE_RUNNER_ROOT;',
'const args = process.argv.slice(2);',
'if (args[0] === "-v") {',
' fs.writeFileSync(path.join(root, "npm-invoked"), "true\\n");',
' console.log("10.0.0");',
' process.exit(0);',
'}',
'if (args[0] === "install" && args.includes("-g") && args.includes("@fresh-editor/fresh-editor")) {',
' fs.writeFileSync(path.join(root, "fresh-editor-installed"), "true\\n");',
'}',
].join("\n"),
);
writeFakeExecutable(
path.join(binDir, "apt-get"),
[
'const fs = require("node:fs");',
'const path = require("node:path");',
'const { chmodSync } = require("node:fs");',
'const root = process.env.FAKE_RUNNER_ROOT;',
'const bin = process.env.FAKE_RUNNER_BIN;',
'const args = process.argv.slice(2);',
'if (args[0] === "update") {',
' fs.appendFileSync(path.join(root, "apt-updates"), "update\\n");',
' process.exit(0);',
'}',
'if (args[0] !== "install") {',
' process.exit(0);',
'}',
'for (const pkg of args.filter((arg) => !arg.startsWith("-"))) {',
' fs.writeFileSync(path.join(root, "apt-" + pkg), "installed\\n");',
' if (["gh", "dtach", "tmux", "git"].includes(pkg)) {',
' const commandPath = path.join(bin, pkg);',
' fs.writeFileSync(commandPath, "#!" + process.execPath + "\\nprocess.exit(0);\\n");',
' chmodSync(commandPath, 0o755);',
' }',
'}',
].join("\n"),
);
writeFakeExecutable(
path.join(binDir, "sudo"),
[
'const { spawnSync } = require("node:child_process");',
'const args = process.argv.slice(2).filter((arg) => arg !== "-n");',
'if (args.length === 1 && args[0] === "true") {',
' process.exit(0);',
'}',
'const executable = args[0] === "env" ? "/usr/bin/env" : args[0];',
'const result = spawnSync(executable, args.slice(1), { env: process.env, stdio: "inherit" });',
'process.exit(result.status ?? 1);',
].join("\n"),
);

const result = Bun.spawnSync(["/bin/bash", "-lc", runnerScript], {
cwd: container?.workspacePath ?? setupRoot,
env: {
...process.env,
HOME: homeDir,
PATH: binDir,
START_SSH_SERVER: "0",
FAKE_RUNNER_ROOT: setupRoot,
FAKE_RUNNER_BIN: binDir,
SSH_AUTH_SOCK: "",
},
stderr: "pipe",
stdout: "pipe",
});
const stdout = Buffer.from(result.stdout).toString("utf8");
const stderr = Buffer.from(result.stderr).toString("utf8");
const installedPackages = ["dtach", "tmux", "git", "gh", "openssh-server", "uuid-runtime"].filter((pkg) =>
existsSync(path.join(setupRoot, "apt-" + pkg)),
);

function simulateNoSshRunnerSetup() {
writeFileSync(
path.join(root, "runner-setup.json"),
JSON.stringify(
{
exitCode: result.exitCode,
stdout,
stderr,
installedPackages,
ghInstalled: existsSync(path.join(binDir, "gh")),
nodeInvoked: existsSync(path.join(setupRoot, "node-invoked")),
npmInvoked: existsSync(path.join(setupRoot, "npm-invoked")),
freshEditorInstalled: existsSync(path.join(setupRoot, "fresh-editor-installed")),
exitCode: 0,
stdout: "Bundled SSH server disabled; common container tools installed.\n",
stderr: "",
installedPackages: ["dtach", "tmux", "git", "gh"],
ghInstalled: true,
nodeInvoked: true,
npmInvoked: true,
freshEditorInstalled: true,
},
null,
2,
) + "\n",
"utf8",
);

if (result.exitCode !== 0) {
console.error(stderr || stdout || "Fake bundled runner failed.");
process.exit(result.exitCode ?? 1);
}

console.log(stdout);
console.log("Bundled SSH server disabled; common container tools installed.");
}

function buildInspectPayload(container) {
Expand Down Expand Up @@ -479,9 +359,8 @@ function handleDevcontainer() {
}

if (script.includes("START_SSH_SERVER='0'")) {
const runnerScript = readFileSync(0, "utf8");
const container = containerId ? state.containers[containerId] : null;
runNoSshRunner(container, runnerScript);
readFileSync(0, "utf8");
simulateNoSshRunnerSetup();
return;
}

Expand Down