mirror of
https://github.com/cachix/install-nix-action.git
synced 2024-11-22 16:40:51 +00:00
74 lines
2.6 KiB
TypeScript
74 lines
2.6 KiB
TypeScript
import * as core from '@actions/core';
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import * as exec from '@actions/exec';
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import * as tc from '@actions/tool-cache';
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import {execFileSync} from 'child_process';
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import {type} from 'os';
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import {exit} from 'process';
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import {createConnection} from 'net';
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async function nixConf() {
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// Workaround a segfault: https://github.com/NixOS/nix/issues/2733
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await exec.exec("sudo", ["mkdir", "-p", "/etc/nix"]);
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await exec.exec("sudo", ["sh", "-c", "echo http2 = false >> /etc/nix/nix.conf"]);
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// Set jobs to number of cores
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await exec.exec("sudo", ["sh", "-c", "echo max-jobs = auto >> /etc/nix/nix.conf"]);
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// Allow binary caches for runner user
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await exec.exec("sudo", ["sh", "-c", "echo trusted-users = root runner >> /etc/nix/nix.conf"]);
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}
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async function run() {
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try {
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const PATH = process.env.PATH;
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await nixConf();
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// Catalina workaround https://github.com/NixOS/nix/issues/2925
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if (type() == "Darwin") {
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execFileSync(`${__dirname}/create-darwin-volume.sh`, { stdio: 'inherit' });
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// Disable spotlight indexing of /nix to speed up performance
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await exec.exec("sudo", ["mdutil", "-i", "off", "/nix"]);
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}
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// Needed due to multi-user being too defensive
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core.exportVariable('ALLOW_PREEXISTING_INSTALLATION', "1");
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// TODO: retry due to all the things that can go wrong
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const nixInstall = await tc.downloadTool('https://nixos.org/nix/install');
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await exec.exec("sh", [nixInstall, "--daemon"]);
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// write nix.conf again as installation overwrites it, reload the daemon to pick up changes
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await nixConf();
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await exec.exec("sudo", ["pkill", "-HUP", "nix-daemon"]);
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// setup env
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core.exportVariable('PATH', `${PATH}:/nix/var/nix/profiles/default/bin:/nix/var/nix/profiles/per-user/runner/profile/bin`)
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core.exportVariable('NIX_PATH', `/nix/var/nix/profiles/per-user/root/channels`)
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if (type() == "Darwin") {
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// macOS needs certificates hints
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core.exportVariable('NIX_SSL_CERT_FILE', '/nix/var/nix/profiles/default/etc/ssl/certs/ca-bundle.crt');
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// TODO: nc doesn't work correctly on macOS :(
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await awaitSocket();
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}
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} catch (error) {
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core.setFailed(`Action failed with error: ${error}`);
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throw(error);
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}
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}
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async function awaitSocket() {
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const daemonSocket = createConnection({ path: '/nix/var/nix/daemon-socket/socket' });
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daemonSocket.on('error', async () => {
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console.log('Waiting for daemon socket to be available, reconnecting...');
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await new Promise(resolve => setTimeout(resolve, 500));
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await awaitSocket();
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});
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daemonSocket.on('connect', () => {
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exit(0);
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});
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}
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run();
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