install-nix-action/src/main.ts
2019-11-19 11:22:13 +01:00

51 lines
2.1 KiB
TypeScript

import * as core from '@actions/core';
import * as exec from '@actions/exec';
import * as tc from '@actions/tool-cache';
import {homedir, userInfo, type} from 'os';
import {existsSync} from 'fs';
async function run() {
try {
const PATH = process.env.PATH;
const INSTALL_PATH = '/opt/nix';
// Workaround a segfault: https://github.com/NixOS/nix/issues/2733
await exec.exec("sudo", ["mkdir", "-p", "/etc/nix"]);
await exec.exec("sudo", ["sh", "-c", "echo http2 = false >> /etc/nix/nix.conf"]);
// Set jobs to number of cores
await exec.exec("sudo", ["sh", "-c", "echo max-jobs = auto >> /etc/nix/nix.conf"]);
// Catalina workaround https://github.com/NixOS/nix/issues/2925
if (type() == "Darwin") {
await exec.exec("sudo", ["sh", "-c", `echo \"nix\t${INSTALL_PATH}\" >> /etc/synthetic.conf`]);
await exec.exec("sudo", ["sh", "-c", `mkdir -m 0755 ${INSTALL_PATH} && chown runner ${INSTALL_PATH}`]);
await exec.exec("/System/Library/Filesystems/apfs.fs/Contents/Resources/apfs.util", ["-B"]);
// Needed for sudo to pass NIX_IGNORE_SYMLINK_STORE
await exec.exec("sudo", ["sh", "-c", "echo 'Defaults env_keep += NIX_IGNORE_SYMLINK_STORE' >> /etc/sudoers"]);
core.exportVariable('NIX_IGNORE_SYMLINK_STORE', "1");
// Needed for nix-daemon installation
await exec.exec("sudo", ["launchctl", "setenv", "NIX_IGNORE_SYMLINK_STORE", "1"]);
}
// Needed due to multi-user being too defensive
core.exportVariable('ALLOW_PREEXISTING_INSTALLATION', "1");
// TODO: retry due to all the things that go wrong
const nixInstall = await tc.downloadTool('https://nixos.org/nix/install');
await exec.exec("sh", [nixInstall, "--daemon"]);
core.exportVariable('PATH', `${PATH}:/nix/var/nix/profiles/default/bin`)
core.exportVariable('NIX_PATH', `/nix/var/nix/profiles/per-user/root/channels`)
if (type() == "Darwin") {
// macOS needs certificates hints
core.exportVariable('NIX_SSL_CERT_FILE', '/nix/var/nix/profiles/default/etc/ssl/certs/ca-bundle.crt');
}
} catch (error) {
core.setFailed(`Action failed with error: ${error}`);
throw(error);
}
}
run();