nix-installer-action/dist/main.js

import * as actionsCore from "@actions/core";
import * as github from "@actions/github";
import * as actionsExec from "@actions/exec";
import { access, writeFile, readFile } from "node:fs/promises";
import { join } from "node:path";
import fs from "node:fs";
import { userInfo } from "node:os";
import stringArgv from "string-argv";
import * as path from "path";
import { IdsToolbox, inputs, platform } from "detsys-ts";
import { randomUUID } from "node:crypto";
// Nix installation events
const EVENT_INSTALL_NIX_FAILURE = "install_nix_failure";
const EVENT_INSTALL_NIX_START = "install_nix_start";
const EVENT_INSTALL_NIX_SUCCESS = "install_nix_start";
const EVENT_SETUP_KVM = "setup_kvm";
const EVENT_UNINSTALL_NIX = "uninstall";
// Docker events
const EVENT_CLEAN_UP_DOCKER_SHIM = "clean_up_docker_shim";
const EVENT_START_DOCKER_SHIM = "start_docker_shim";
// FlakeHub events
const EVENT_LOGIN_TO_FLAKEHUB = "login_to_flakehub";
// Other events
const EVENT_CONCLUDE_WORKFLOW = "conclude_workflow";
// Facts
const FACT_HAS_DOCKER = "has_docker";
const FACT_HAS_SYSTEMD = "has_systemd";
const FACT_IN_GITHUB_ACTIONS = "in_act";
const FACT_IN_NAMESPACE_SO = "in_namespace_so";
const FACT_NIX_INSTALLER_PLANNER = "nix_installer_planner";
class NixInstallerAction {
    constructor() {
        this.idslib = new IdsToolbox({
            name: "nix-installer",
            fetchStyle: "nix-style",
            legacySourcePrefix: "nix-installer",
            requireNix: "ignore",
        });
        this.platform = platform.getNixPlatform(platform.getArchOs());
        this.nixPackageUrl = inputs.getStringOrNull("nix-package-url");
        this.backtrace = inputs.getStringOrNull("backtrace");
        this.extraArgs = inputs.getStringOrNull("extra-args");
        this.extraConf = inputs.getMultilineStringOrNull("extra-conf");
        this.flakehub = inputs.getBool("flakehub");
        this.kvm = inputs.getBool("kvm");
        this.forceDockerShim = inputs.getBool("force-docker-shim");
        this.githubToken = inputs.getStringOrNull("github-token");
        this.githubServerUrl = inputs.getStringOrNull("github-server-url");
        this.init = inputs.getStringOrNull("init");
        this.localRoot = inputs.getStringOrNull("local-root");
        this.logDirectives = inputs.getStringOrNull("log-directives");
        this.logger = inputs.getStringOrNull("logger");
        this.sslCertFile = inputs.getStringOrNull("ssl-cert-file");
        this.proxy = inputs.getStringOrNull("proxy");
        this.macCaseSensitive = inputs.getStringOrNull("mac-case-sensitive");
        this.macEncrypt = inputs.getStringOrNull("mac-encrypt");
        this.macRootDisk = inputs.getStringOrNull("mac-root-disk");
        this.macVolumeLabel = inputs.getStringOrNull("mac-volume-label");
        this.modifyProfile = inputs.getBool("modify-profile");
        this.nixBuildGroupId = inputs.getNumberOrNull("nix-build-group-id");
        this.nixBuildGroupName = inputs.getStringOrNull("nix-build-group-name");
        this.nixBuildUserBase = inputs.getNumberOrNull("nix-build-user-base");
        this.nixBuildUserCount = inputs.getNumberOrNull("nix-build-user-count");
        this.nixBuildUserPrefix = inputs.getStringOrNull("nix-build-user-prefix");
        this.planner = inputs.getStringOrNull("planner");
        this.reinstall = inputs.getBool("reinstall");
        this.startDaemon = inputs.getBool("start-daemon");
        this.trustRunnerUser = inputs.getBool("trust-runner-user");
    }
    async detectAndForceDockerShim() {
        const runnerOs = process.env["RUNNER_OS"];
        // Detect if we're in a GHA runner which is Linux, doesn't have Systemd, and does have Docker.
        // This is a common case in self-hosted runners, providers like [Namespace](https://namespace.so/),
        // and especially GitHub Enterprise Server.
        if (runnerOs !== "Linux") {
            if (this.forceDockerShim) {
                actionsCore.warning("Ignoring force-docker-shim which is set to true, as it is only supported on Linux.");
                this.forceDockerShim = false;
            }
            return;
        }
        const systemdCheck = fs.statSync("/run/systemd/system", {
            throwIfNoEntry: false,
        });
        if (systemdCheck?.isDirectory()) {
            if (this.forceDockerShim) {
                actionsCore.warning("Systemd is detected, but ignoring it since force-docker-shim is enabled.");
            }
            else {
                this.idslib.addFact(FACT_HAS_SYSTEMD, true);
                return;
            }
        }
        this.idslib.addFact(FACT_HAS_SYSTEMD, false);
        actionsCore.debug("Linux detected without systemd, testing for Docker with `docker info` as an alternative daemon supervisor.");
        this.idslib.addFact(FACT_HAS_DOCKER, false); // Set to false here, and only in the success case do we set it to true
        let exitCode;
        try {
            exitCode = await actionsExec.exec("docker", ["info"], {
                silent: true,
                listeners: {
                    stdout: (data) => {
                        const trimmed = data.toString("utf-8").trimEnd();
                        if (trimmed.length >= 0) {
                            actionsCore.debug(trimmed);
                        }
                    },
                    stderr: (data) => {
                        const trimmed = data.toString("utf-8").trimEnd();
                        if (trimmed.length >= 0) {
                            actionsCore.debug(trimmed);
                        }
                    },
                },
            });
        }
        catch {
            actionsCore.debug("Docker not detected, not enabling docker shim.");
            return;
        }
        if (exitCode !== 0) {
            if (this.forceDockerShim) {
                actionsCore.warning("docker info check failed, but trying anyway since force-docker-shim is enabled.");
            }
            else {
                return;
            }
        }
        this.idslib.addFact(FACT_HAS_DOCKER, true);
        if (!this.forceDockerShim &&
            (await this.detectDockerWithMountedDockerSocket())) {
            actionsCore.debug("Detected a Docker container with a Docker socket mounted, not enabling docker shim.");
            return;
        }
        actionsCore.startGroup("Enabling the Docker shim for running Nix on Linux in CI without Systemd.");
        if (this.init !== "none") {
            actionsCore.info(`Changing init from '${this.init}' to 'none'`);
            this.init = "none";
        }
        if (this.planner !== "linux") {
            actionsCore.info(`Changing planner from '${this.planner}' to 'linux'`);
            this.planner = "linux";
        }
        this.forceDockerShim = true;
        actionsCore.endGroup();
    }
    // Detect if we are running under `act` or some other system which is not using docker-in-docker,
    // and instead using a mounted docker socket.
    // In the case of the socket mount solution, the shim will cause issues since the given mount paths will
    // equate to mount paths on the host, not mount paths to the docker container in question.
    async detectDockerWithMountedDockerSocket() {
        let cgroupsBuffer;
        try {
            // If we are inside a docker container, the last line of `/proc/self/cgroup` should be
            // 0::/docker/$SOME_ID
            //
            // If we are not, the line will likely be `0::/`
            cgroupsBuffer = await readFile("/proc/self/cgroup", {
                encoding: "utf-8",
            });
        }
        catch (e) {
            actionsCore.debug(`Did not detect \`/proc/self/cgroup\` existence, bailing on docker container ID detection:\n${e}`);
            return false;
        }
        const cgroups = cgroupsBuffer.trim().split("\n");
        const lastCgroup = cgroups[cgroups.length - 1];
        const lastCgroupParts = lastCgroup.split(":");
        const lastCgroupPath = lastCgroupParts[lastCgroupParts.length - 1];
        if (!lastCgroupPath.includes("/docker/")) {
            actionsCore.debug("Did not detect a container ID, bailing on docker.sock detection");
            return false;
        }
        // We are in a docker container, now to determine if this container is visible from
        // the `docker` command, and if so, if there is a `docker.socket` mounted.
        const lastCgroupPathParts = lastCgroupPath.split("/");
        const containerId = lastCgroupPathParts[lastCgroupPathParts.length - 1];
        // If we cannot `docker inspect` this discovered container ID, we'll fall through to the `catch` below.
        let stdoutBuffer = "";
        let stderrBuffer = "";
        let exitCode;
        try {
            exitCode = await actionsExec.exec("docker", ["inspect", containerId], {
                silent: true,
                listeners: {
                    stdout: (data) => {
                        stdoutBuffer += data.toString("utf-8");
                    },
                    stderr: (data) => {
                        stderrBuffer += data.toString("utf-8");
                    },
                },
            });
        }
        catch (e) {
            actionsCore.debug(`Could not execute \`docker inspect ${containerId}\`, bailing on docker container inspection:\n${e}`);
            return false;
        }
        if (exitCode !== 0) {
            actionsCore.debug(`Unable to inspect detected docker container with id \`${containerId}\`, bailing on container inspection (exit ${exitCode}):\n${stderrBuffer}`);
            return false;
        }
        const output = JSON.parse(stdoutBuffer);
        // `docker inspect $ID` prints an array containing objects.
        // In our use case, we should only see 1 item in the array.
        if (output.length !== 1) {
            actionsCore.debug(`Got \`docker inspect ${containerId}\` output which was not one item (was ${output.length}), bailing on docker.sock detection.`);
            return false;
        }
        const item = output[0];
        // On this array item we want the `Mounts` field, which is an array
        // containing `{ Type, Source, Destination, Mode}`.
        // We are looking for a `Destination` ending with `docker.sock`.
        const mounts = item["Mounts"];
        if (typeof mounts !== "object") {
            actionsCore.debug(`Got non-object in \`Mounts\` field of \`docker inspect ${containerId}\` output, bailing on docker.sock detection.`);
            return false;
        }
        let foundDockerSockMount = false;
        for (const mount of mounts) {
            const destination = mount["Destination"];
            if (typeof destination === "string") {
                if (destination.endsWith("docker.sock")) {
                    foundDockerSockMount = true;
                    break;
                }
            }
        }
        return foundDockerSockMount;
    }
    async executionEnvironment() {
        const executionEnv = {};
        const runnerOs = process.env["RUNNER_OS"];
        executionEnv.NIX_INSTALLER_NO_CONFIRM = "true";
        executionEnv.NIX_INSTALLER_DIAGNOSTIC_ATTRIBUTION = JSON.stringify(this.idslib.getCorrelationHashes());
        if (this.backtrace !== null) {
            executionEnv.RUST_BACKTRACE = this.backtrace;
        }
        if (this.modifyProfile !== null) {
            if (this.modifyProfile) {
                executionEnv.NIX_INSTALLER_MODIFY_PROFILE = "true";
            }
            else {
                executionEnv.NIX_INSTALLER_MODIFY_PROFILE = "false";
            }
        }
        if (this.nixBuildGroupId !== null) {
            executionEnv.NIX_INSTALLER_NIX_BUILD_GROUP_ID = `${this.nixBuildGroupId}`;
        }
        if (this.nixBuildGroupName !== null) {
            executionEnv.NIX_INSTALLER_NIX_BUILD_GROUP_NAME = this.nixBuildGroupName;
        }
        if (this.nixBuildUserPrefix !== null) {
            executionEnv.NIX_INSTALLER_NIX_BUILD_USER_PREFIX =
                this.nixBuildUserPrefix;
        }
        if (this.nixBuildUserCount !== null) {
            executionEnv.NIX_INSTALLER_NIX_BUILD_USER_COUNT = `${this.nixBuildUserCount}`;
        }
        if (this.nixBuildUserBase !== null) {
            executionEnv.NIX_INSTALLER_NIX_BUILD_USER_ID_BASE = `${this.nixBuildUserCount}`;
        }
        if (this.nixPackageUrl !== null) {
            executionEnv.NIX_INSTALLER_NIX_PACKAGE_URL = `${this.nixPackageUrl}`;
        }
        if (this.proxy !== null) {
            executionEnv.NIX_INSTALLER_PROXY = this.proxy;
        }
        if (this.sslCertFile !== null) {
            executionEnv.NIX_INSTALLER_SSL_CERT_FILE = this.sslCertFile;
        }
        executionEnv.NIX_INSTALLER_DIAGNOSTIC_ENDPOINT =
            this.idslib.getDiagnosticsUrl()?.toString() ?? "";
        // TODO: Error if the user uses these on not-MacOS
        if (this.macEncrypt !== null) {
            if (runnerOs !== "macOS") {
                throw new Error("`mac-encrypt` while `$RUNNER_OS` was not `macOS`");
            }
            executionEnv.NIX_INSTALLER_ENCRYPT = this.macEncrypt;
        }
        if (this.macCaseSensitive !== null) {
            if (runnerOs !== "macOS") {
                throw new Error("`mac-case-sensitive` while `$RUNNER_OS` was not `macOS`");
            }
            executionEnv.NIX_INSTALLER_CASE_SENSITIVE = this.macCaseSensitive;
        }
        if (this.macVolumeLabel !== null) {
            if (runnerOs !== "macOS") {
                throw new Error("`mac-volume-label` while `$RUNNER_OS` was not `macOS`");
            }
            executionEnv.NIX_INSTALLER_VOLUME_LABEL = this.macVolumeLabel;
        }
        if (this.macRootDisk !== null) {
            if (runnerOs !== "macOS") {
                throw new Error("`mac-root-disk` while `$RUNNER_OS` was not `macOS`");
            }
            executionEnv.NIX_INSTALLER_ROOT_DISK = this.macRootDisk;
        }
        if (this.logger !== null) {
            executionEnv.NIX_INSTALLER_LOGGER = this.logger;
        }
        if (this.logDirectives !== null) {
            executionEnv.NIX_INSTALLER_LOG_DIRECTIVES = this.logDirectives;
        }
        // TODO: Error if the user uses these on MacOS
        if (this.init !== null) {
            if (runnerOs === "macOS") {
                throw new Error("`init` is not a valid option when `$RUNNER_OS` is `macOS`");
            }
            executionEnv.NIX_INSTALLER_INIT = this.init;
        }
        if (this.startDaemon !== null) {
            if (this.startDaemon) {
                executionEnv.NIX_INSTALLER_START_DAEMON = "true";
            }
            else {
                executionEnv.NIX_INSTALLER_START_DAEMON = "false";
            }
        }
        let extraConf = "";
        if (this.githubServerUrl !== null && this.githubToken !== null) {
            const serverUrl = this.githubServerUrl.replace("https://", "");
            extraConf += `access-tokens = ${serverUrl}=${this.githubToken}`;
            extraConf += "\n";
        }
        if (this.trustRunnerUser !== null) {
            const user = userInfo().username;
            if (user) {
                extraConf += `trusted-users = root ${user}`;
            }
            else {
                extraConf += `trusted-users = root`;
            }
            extraConf += "\n";
        }
        if (this.flakehub) {
            try {
                const flakeHubNetrcFile = await this.flakehubLogin();
                extraConf += `netrc-file = ${flakeHubNetrcFile}`;
                extraConf += "\n";
            }
            catch (e) {
                actionsCore.warning(`Failed to set up FlakeHub: ${e}`);
            }
        }
        if (this.extraConf !== null && this.extraConf.length !== 0) {
            extraConf += this.extraConf.join("\n");
            extraConf += "\n";
        }
        executionEnv.NIX_INSTALLER_EXTRA_CONF = extraConf;
        if (process.env["ACT"] && !process.env["NOT_ACT"]) {
            this.idslib.addFact(FACT_IN_GITHUB_ACTIONS, true);
            actionsCore.info("Detected `$ACT` environment, assuming this is a https://github.com/nektos/act created container, set `NOT_ACT=true` to override this. This will change the setting of the `init` to be compatible with `act`");
            executionEnv.NIX_INSTALLER_INIT = "none";
        }
        if (process.env["NSC_VM_ID"] && !process.env["NOT_NAMESPACE"]) {
            this.idslib.addFact(FACT_IN_NAMESPACE_SO, true);
            actionsCore.info("Detected Namespace runner, assuming this is a https://namespace.so created container, set `NOT_NAMESPACE=true` to override this. This will change the setting of the `init` to be compatible with Namespace");
            executionEnv.NIX_INSTALLER_INIT = "none";
        }
        return executionEnv;
    }
    async executeInstall(binaryPath) {
        const executionEnv = await this.executionEnvironment();
        actionsCore.debug(`Execution environment: ${JSON.stringify(executionEnv, null, 4)}`);
        const args = ["install"];
        if (this.planner) {
            this.idslib.addFact(FACT_NIX_INSTALLER_PLANNER, this.planner);
            args.push(this.planner);
        }
        else {
            this.idslib.addFact(FACT_NIX_INSTALLER_PLANNER, getDefaultPlanner());
            args.push(getDefaultPlanner());
        }
        if (this.extraArgs) {
            const extraArgs = stringArgv(this.extraArgs);
            args.concat(extraArgs);
        }
        this.idslib.recordEvent(EVENT_INSTALL_NIX_START);
        const exitCode = await actionsExec.exec(binaryPath, args, {
            env: {
                ...executionEnv,
                ...process.env, // To get $PATH, etc
            },
        });
        if (exitCode !== 0) {
            this.idslib.recordEvent(EVENT_INSTALL_NIX_FAILURE, {
                exitCode,
            });
            throw new Error(`Non-zero exit code of \`${exitCode}\` detected`);
        }
        this.idslib.recordEvent(EVENT_INSTALL_NIX_SUCCESS);
        return exitCode;
    }
    async install() {
        const existingInstall = await this.detectExisting();
        if (existingInstall) {
            if (this.reinstall) {
                // We need to uninstall, then reinstall
                actionsCore.info("Nix was already installed, `reinstall` is set, uninstalling for a reinstall");
                await this.executeUninstall();
            }
            else {
                // We're already installed, and not reinstalling, just set GITHUB_PATH and finish early
                await this.setGithubPath();
                actionsCore.info("Nix was already installed, using existing install");
                return;
            }
        }
        if (this.kvm) {
            actionsCore.startGroup("Configuring KVM");
            if (await this.setupKvm()) {
                actionsCore.endGroup();
                actionsCore.info("\u001b[32m Accelerated KVM is enabled \u001b[33m⚡️");
                actionsCore.exportVariable("DETERMINATE_NIX_KVM", "1");
            }
            else {
                actionsCore.endGroup();
                actionsCore.info("KVM is not available.");
                actionsCore.exportVariable("DETERMINATE_NIX_KVM", "0");
            }
        }
        // Normal just doing of the install
        actionsCore.startGroup("Installing Nix");
        const binaryPath = await this.fetchBinary();
        await this.executeInstall(binaryPath);
        actionsCore.endGroup();
        if (this.forceDockerShim) {
            await this.spawnDockerShim();
        }
        await this.setGithubPath();
    }
    async spawnDockerShim() {
        actionsCore.startGroup("Configuring the Docker shim as the Nix Daemon's process supervisor");
        const images = {
            X64: path.join(__dirname, "/../docker-shim/amd64.tar.gz"),
            ARM64: path.join(__dirname, "/../docker-shim/arm64.tar.gz"),
        };
        const runnerArch = process.env["RUNNER_ARCH"];
        let arch;
        if (runnerArch === "X64") {
            arch = "X64";
        }
        else if (runnerArch === "ARM64") {
            arch = "ARM64";
        }
        else {
            throw Error("Architecture not supported in Docker shim mode.");
        }
        actionsCore.debug("Loading image: determinate-nix-shim:latest...");
        {
            const exitCode = await actionsExec.exec("docker", ["image", "load", "--input", images[arch]], {
                silent: true,
                listeners: {
                    stdout: (data) => {
                        const trimmed = data.toString("utf-8").trimEnd();
                        if (trimmed.length >= 0) {
                            actionsCore.debug(trimmed);
                        }
                    },
                    stderr: (data) => {
                        const trimmed = data.toString("utf-8").trimEnd();
                        if (trimmed.length >= 0) {
                            actionsCore.debug(trimmed);
                        }
                    },
                },
            });
            if (exitCode !== 0) {
                throw new Error(`Failed to build the shim image, exit code: \`${exitCode}\``);
            }
        }
        {
            actionsCore.debug("Starting the Nix daemon through Docker...");
            this.idslib.recordEvent(EVENT_START_DOCKER_SHIM);
            const exitCode = await actionsExec.exec("docker", [
                "--log-level=debug",
                "run",
                "--detach",
                "--privileged",
                "--network=host",
                "--userns=host",
                "--pid=host",
                "--mount",
                "type=bind,src=/bin,dst=/bin,readonly",
                "--mount",
                "type=bind,src=/lib,dst=/lib,readonly",
                "--mount",
                "type=bind,src=/home,dst=/home,readonly",
                "--mount",
                "type=bind,src=/tmp,dst=/tmp",
                "--mount",
                "type=bind,src=/nix,dst=/nix",
                "--mount",
                "type=bind,src=/etc,dst=/etc,readonly",
                "--restart",
                "always",
                "--init",
                "--name",
                `determinate-nix-shim-${this.idslib.getUniqueId()}-${randomUUID()}`,
                "determinate-nix-shim:latest",
            ], {
                silent: true,
                listeners: {
                    stdline: (data) => {
                        actionsCore.saveState("docker_shim_container_id", data.trimEnd());
                    },
                    stdout: (data) => {
                        const trimmed = data.toString("utf-8").trimEnd();
                        if (trimmed.length >= 0) {
                            actionsCore.debug(trimmed);
                        }
                    },
                    stderr: (data) => {
                        const trimmed = data.toString("utf-8").trimEnd();
                        if (trimmed.length >= 0) {
                            actionsCore.debug(trimmed);
                        }
                    },
                },
            });
            if (exitCode !== 0) {
                throw new Error(`Failed to start the Nix daemon through Docker, exit code: \`${exitCode}\``);
            }
        }
        actionsCore.endGroup();
        return;
    }
    async cleanupDockerShim() {
        const containerId = actionsCore.getState("docker_shim_container_id");
        if (containerId !== "") {
            actionsCore.startGroup("Cleaning up the Nix daemon's Docker shim");
            let cleaned = false;
            try {
                await actionsExec.exec("docker", ["rm", "--force", containerId]);
                cleaned = true;
            }
            catch {
                actionsCore.warning("failed to cleanup nix daemon container");
            }
            if (!cleaned) {
                actionsCore.info("trying to pkill the container's shim process");
                try {
                    await actionsExec.exec("pkill", [containerId]);
                    cleaned = true;
                }
                catch {
                    actionsCore.warning("failed to forcibly kill the container's shim process");
                }
            }
            if (cleaned) {
                this.idslib.recordEvent(EVENT_CLEAN_UP_DOCKER_SHIM);
            }
            else {
                actionsCore.warning("Giving up on cleaning up the nix daemon container");
            }
            actionsCore.endGroup();
        }
    }
    async setGithubPath() {
        // Interim versions of the `nix-installer` crate may have already manipulated `$GITHUB_PATH`, as root even! Accessing that will be an error.
        try {
            const nixVarNixProfilePath = "/nix/var/nix/profiles/default/bin";
            const homeNixProfilePath = `${process.env["HOME"]}/.nix-profile/bin`;
            actionsCore.addPath(nixVarNixProfilePath);
            actionsCore.addPath(homeNixProfilePath);
            actionsCore.info(`Added \`${nixVarNixProfilePath}\` and \`${homeNixProfilePath}\` to \`$GITHUB_PATH\``);
        }
        catch {
            actionsCore.info("Skipping setting $GITHUB_PATH in action, the `nix-installer` crate seems to have done this already. From `nix-installer` version 0.11.0 and up, this step is done in the action. Prior to 0.11.0, this was only done in the `nix-installer` binary.");
        }
    }
    async flakehubLogin() {
        this.idslib.recordEvent(EVENT_LOGIN_TO_FLAKEHUB);
        const netrcPath = `${process.env["RUNNER_TEMP"]}/determinate-nix-installer-netrc`;
        const jwt = await actionsCore.getIDToken("api.flakehub.com");
        await writeFile(netrcPath, [
            `machine api.flakehub.com login flakehub password ${jwt}`,
            `machine flakehub.com login flakehub password ${jwt}`,
        ].join("\n"));
        actionsCore.info("Logging in to FlakeHub.");
        // the join followed by a match on ^... looks silly, but extra_config
        // could contain multi-line values
        if (this.extraConf?.join("\n").match(/^netrc-file/m)) {
            actionsCore.warning("Logging in to FlakeHub conflicts with the Nix option `netrc-file`.");
        }
        return netrcPath;
    }
    async executeUninstall() {
        this.idslib.recordEvent(EVENT_UNINSTALL_NIX);
        const exitCode = await actionsExec.exec(`/nix/nix-installer`, ["uninstall"], {
            env: {
                NIX_INSTALLER_NO_CONFIRM: "true",
                ...process.env, // To get $PATH, etc
            },
        });
        if (exitCode !== 0) {
            throw new Error(`Non-zero exit code of \`${exitCode}\` detected`);
        }
        return exitCode;
    }
    async detectExisting() {
        const receiptPath = "/nix/receipt.json";
        try {
            await access(receiptPath);
            // There is a /nix/receipt.json
            return true;
        }
        catch {
            // No /nix/receipt.json
            return false;
        }
    }
    async setupKvm() {
        this.idslib.recordEvent(EVENT_SETUP_KVM);
        const currentUser = userInfo();
        const isRoot = currentUser.uid === 0;
        const maybeSudo = isRoot ? "" : "sudo";
        const kvmRules = "/etc/udev/rules.d/99-determinate-nix-installer-kvm.rules";
        try {
            const writeFileExitCode = await actionsExec.exec("sh", [
                "-c",
                `echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | ${maybeSudo} tee ${kvmRules} > /dev/null`,
            ], {
                silent: true,
                listeners: {
                    stdout: (data) => {
                        const trimmed = data.toString("utf-8").trimEnd();
                        if (trimmed.length >= 0) {
                            actionsCore.debug(trimmed);
                        }
                    },
                    stderr: (data) => {
                        const trimmed = data.toString("utf-8").trimEnd();
                        if (trimmed.length >= 0) {
                            actionsCore.debug(trimmed);
                        }
                    },
                },
            });
            if (writeFileExitCode !== 0) {
                throw new Error(`Non-zero exit code of \`${writeFileExitCode}\` detected while writing '${kvmRules}'`);
            }
            const debugRootRunThrow = async (action, command, args) => {
                if (!isRoot) {
                    args = [command, ...args];
                    command = "sudo";
                }
                const reloadExitCode = await actionsExec.exec(command, args, {
                    silent: true,
                    listeners: {
                        stdout: (data) => {
                            const trimmed = data.toString("utf-8").trimEnd();
                            if (trimmed.length >= 0) {
                                actionsCore.debug(trimmed);
                            }
                        },
                        stderr: (data) => {
                            const trimmed = data.toString("utf-8").trimEnd();
                            if (trimmed.length >= 0) {
                                actionsCore.debug(trimmed);
                            }
                        },
                    },
                });
                if (reloadExitCode !== 0) {
                    throw new Error(`Non-zero exit code of \`${reloadExitCode}\` detected while ${action}.`);
                }
            };
            await debugRootRunThrow("reloading udev rules", "udevadm", [
                "control",
                "--reload-rules",
            ]);
            await debugRootRunThrow("triggering udev against kvm", "udevadm", [
                "trigger",
                "--name-match=kvm",
            ]);
            return true;
        }
        catch {
            if (isRoot) {
                await actionsExec.exec("rm", ["-f", kvmRules]);
            }
            else {
                await actionsExec.exec("sudo", ["rm", "-f", kvmRules]);
            }
            return false;
        }
    }
    async fetchBinary() {
        if (!this.localRoot) {
            return await this.idslib.fetchExecutable();
        }
        else {
            const localPath = join(this.localRoot, `nix-installer-${this.platform}`);
            actionsCore.info(`Using binary ${localPath}`);
            return localPath;
        }
    }
    async reportOverall() {
        try {
            this.idslib.recordEvent(EVENT_CONCLUDE_WORKFLOW, {
                conclusion: await this.getWorkflowConclusion(),
            });
        }
        catch (e) {
            actionsCore.debug(`Error submitting post-run diagnostics report: ${e}`);
        }
    }
    async getWorkflowConclusion() {
        if (this.githubToken == null) {
            return undefined;
        }
        try {
            const octokit = github.getOctokit(this.githubToken);
            const jobs = await octokit.paginate(octokit.rest.actions.listJobsForWorkflowRun, {
                owner: github.context.repo.owner,
                repo: github.context.repo.repo,
                /* eslint-disable camelcase */
                run_id: github.context.runId,
            });
            actionsCore.debug(`awaited jobs: ${jobs}`);
            const job = jobs
                .filter((candidate) => candidate.name === github.context.job)
                .at(0);
            if (job === undefined) {
                return "no-jobs";
            }
            const outcomes = (job.steps ?? []).map((j) => j.conclusion ?? "unknown");
            // Possible values: success, failure, cancelled, or skipped
            // from: https://docs.github.com/en/actions/learn-github-actions/contexts
            if (outcomes.includes("failure")) {
                // Any failures fails the job
                return "failure";
            }
            if (outcomes.includes("cancelled")) {
                // Any cancellations cancels the job
                return "cancelled";
            }
            // Assume success if no jobs failed or were canceled
            return "success";
        }
        catch (e) {
            actionsCore.debug(`Error determining final disposition: ${e}`);
            return "unavailable";
        }
    }
}
function getDefaultPlanner() {
    const envOs = process.env["RUNNER_OS"];
    if (envOs === "macOS") {
        return "macos";
    }
    else if (envOs === "Linux") {
        return "linux";
    }
    else {
        throw new Error(`Unsupported \`RUNNER_OS\` (currently \`${envOs}\`)`);
    }
}
function main() {
    const installer = new NixInstallerAction();
    installer.idslib.onMain(async () => {
        await installer.detectAndForceDockerShim();
        await installer.install();
    });
    installer.idslib.onPost(async () => {
        await installer.cleanupDockerShim();
        await installer.reportOverall();
    });
    installer.idslib.execute();
}
main();