v4

.github/workflows/test.yml

@@ -17,8 +17,4 @@ jobs:
     - run: yarn test
     - name: Install Nix
       uses: ./
-    - run: nix-env -iA cachix -f https://github.com/NixOS/nixpkgs/tarball/ab5863afada3c1b50fc43bf774b75ea71b287cde
-    - run: cat /etc/nix/nix.conf
-    # cachix should be available and be able to configure a cache
-    - run: cachix use cachix
     - run: nix-build test.nix

.gitignore

@@ -1,7 +1,6 @@
 __tests__/runner/*
 
 # comment out in distribution branches
-node_modules/
 
 # Rest pulled from https://github.com/github/gitignore/blob/master/Node.gitignore
 # Logs

README.md

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v1
-    - uses: cachix/install-nix-action@v6
+    - uses: cachix/install-nix-action@v3
     - run: nix-build
 ```
 

lib/create-darwin-volume.sh

@@ -1,102 +0,0 @@
-#!/usr/bin/env bash
-set -e
-
-root_disks() {
-    diskutil list -plist /
-}
-
-apfs_volumes_for() {
-    disk=$1
-    diskutil apfs list -plist "$disk"
-}
-
-disk_identifier() {
-    xpath "/plist/dict/key[text()='WholeDisks']/following-sibling::array[1]/string/text()" 2>/dev/null
-}
-
-volume_get() {
-    key=$1 i=$2
-    xpath "/plist/dict/array/dict/key[text()='Volumes']/following-sibling::array/dict[$i]/key[text()='$key']/following-sibling::string[1]/text()" 2> /dev/null
-}
-
-find_nix_volume() {
-    disk=$1
-    i=1
-    volumes=$(apfs_volumes_for "$disk")
-    while true; do
-        name=$(echo "$volumes" | volume_get "Name" "$i")
-        if [ -z "$name" ]; then
-            break
-        fi
-        case "$name" in
-            [Nn]ix*)
-                echo "$name"
-                break
-                ;;
-        esac
-        i=$((i+1))
-    done
-}
-
-test_fstab() {
-    grep -q "/nix" /etc/fstab 2>/dev/null
-}
-
-test_synthetic_conf() {
-    grep -q "^nix" /etc/synthetic.conf 2>/dev/null
-}
-
-test_nix() {
-    test -d "/nix"
-}
-
-main() {
-    (
-        echo ""
-        echo "     ------------------------------------------------------------------ "
-        echo "    | This installer will create a volume for the nix store and        |"
-        echo "    | configure it to mount at /nix.  Follow these steps to uninstall. |"
-        echo "     ------------------------------------------------------------------ "
-        echo ""
-        echo "  1. Remove the entry from fstab using 'sudo vifs'"
-        echo "  2. Destroy the data volume using 'diskutil apfs deleteVolume'"
-        echo "  3. Delete /etc/synthetic.conf"
-        echo ""
-    ) >&2
-
-    if [ -L "/nix" ]; then
-        echo "error: /nix is a symlink, please remove it or edit synthetic.conf (requires reboot)" >&2
-        echo "  /nix -> $(readlink "/nix")" >&2
-        exit 2
-    fi
-
-    if ! test_synthetic_conf; then
-        echo "Configuring /etc/synthetic.conf..." >&2
-        echo nix | sudo tee /etc/synthetic.conf
-        /System/Library/Filesystems/apfs.fs/Contents/Resources/apfs.util -B
-    fi
-
-    if ! test_nix; then
-        echo "Creating mountpoint for /nix..." >&2
-        sudo mkdir /nix
-    fi
-
-    disk=$(root_disks | disk_identifier)
-    volume=$(find_nix_volume "$disk")
-    if [ -z "$volume" ]; then
-        echo "Creating a Nix Store volume..." >&2
-        sudo diskutil apfs addVolume "$disk" APFS 'Nix Store' -mountpoint /nix
-        volume="Nix Store"
-    else
-        echo "Using existing '$volume' volume" >&2
-    fi
-
-    if ! test_fstab; then
-        echo "Configuring /etc/fstab..." >&2
-        label=$(echo "$volume" | sed 's/ /\\040/g')
-        printf "\$a\nLABEL=%s /nix apfs rw\n.\nwq\n" "$label" | EDITOR=ed sudo vifs
-        sudo defaults write /Library/Preferences/SystemConfiguration/autodiskmount AutomountDisksWithoutUserLogin -bool true
-    fi
-}
-
-main "$@"

lib/install-nix.sh

@@ -1,48 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-export here=$(dirname "${BASH_SOURCE[0]}")
-
-nixConf() {
-  sudo mkdir -p /etc/nix
-  # Workaround a segfault: https://github.com/NixOS/nix/issues/2733
-  sudo sh -c 'echo http2 = false >> /etc/nix/nix.conf'
-  # Set jobs to number of cores
-  sudo sh -c 'echo max-jobs = auto >> /etc/nix/nix.conf'
-  # Allow binary caches for runner user
-  sudo sh -c 'echo trusted-users = root runner >> /etc/nix/nix.conf'
-}
-
-if [[ $OSTYPE =~ darwin ]]; then
-  # Catalina workaround https://github.com/NixOS/nix/issues/2925
-  $here/create-darwin-volume.sh
-
-  # Disable spotlight indexing of /nix to speed up performance
-  sudo mdutil -i off /nix
-fi
-
-nixConf
-
-# Needed due to multi-user being too defensive
-export ALLOW_PREEXISTING_INSTALLATION=1
-
-sh <(curl https://nixos.org/nix/install) --daemon
-
-# write nix.conf again as installation overwrites it
-nixConf
-
-# macOS needs certificates hints
-if [[ $OSTYPE =~ darwin ]]; then
-  cert_file=/nix/var/nix/profiles/default/etc/ssl/certs/ca-bundle.crt
-  echo "::set-env name=NIX_SSL_CERT_FILE::$cert_file"
-  export NIX_SSL_CERT_FILE=$cert_file
-  sudo launchctl setenv NIX_SSL_CERT_FILE "$cert_file"
-fi
-
-# Reload the daemon to pick up changes
-sudo pkill -HUP nix-daemon
-
-# Set paths
-echo "::add-path::/nix/var/nix/profiles/per-user/runner/profile/bin"
-echo "::add-path::/nix/var/nix/profiles/default/bin"
-echo "::set-env name=NIX_PATH::/nix/var/nix/profiles/per-user/root/channels"

lib/main.js

@@ -8,23 +8,53 @@ var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, ge
         step((generator = generator.apply(thisArg, _arguments || [])).next());
     });
 };
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
+    result["default"] = mod;
+    return result;
+};
 Object.defineProperty(exports, "__esModule", { value: true });
-const child_process_1 = require("child_process");
-const process_1 = require("process");
-const net_1 = require("net");
-function awaitSocket() {
+const core = __importStar(require("@actions/core"));
+const exec = __importStar(require("@actions/exec"));
+const tc = __importStar(require("@actions/tool-cache"));
+const os_1 = require("os");
+const fs_1 = require("fs");
+function run() {
     return __awaiter(this, void 0, void 0, function* () {
-        const daemonSocket = net_1.createConnection({ path: '/nix/var/nix/daemon-socket/socket' });
-        daemonSocket.on('error', () => __awaiter(this, void 0, void 0, function* () {
-            console.log('Waiting for daemon socket to be available, reconnecting...');
-            yield new Promise(resolve => setTimeout(resolve, 500));
-            yield awaitSocket();
-        }));
-        daemonSocket.on('connect', () => {
-            process_1.exit(0);
-        });
+        try {
+            const home = os_1.homedir();
+            const { username } = os_1.userInfo();
+            const PATH = process.env.PATH;
+            const INSTALL_PATH = '/opt/nix';
+            const CERTS_PATH = home + '/.nix-profile/etc/ssl/certs/ca-bundle.crt';
+            // Workaround a segfault: https://github.com/NixOS/nix/issues/2733
+            yield exec.exec("sudo", ["mkdir", "-p", "/etc/nix"]);
+            yield exec.exec("sudo", ["sh", "-c", "echo http2 = false >> /etc/nix/nix.conf"]);
+            // Set jobs to number of cores
+            yield exec.exec("sudo", ["sh", "-c", "echo max-jobs = auto >> /etc/nix/nix.conf"]);
+            // Catalina workaround https://github.com/NixOS/nix/issues/2925
+            if (os_1.type() == "Darwin") {
+                yield exec.exec("sudo", ["sh", "-c", `echo \"nix\t${INSTALL_PATH}\"  >> /etc/synthetic.conf`]);
+                yield exec.exec("sudo", ["sh", "-c", `mkdir -m 0755 ${INSTALL_PATH} && chown runner ${INSTALL_PATH}`]);
+                yield exec.exec("/System/Library/Filesystems/apfs.fs/Contents/Resources/apfs.util", ["-B"]);
+                core.exportVariable('NIX_IGNORE_SYMLINK_STORE', "1");
+            }
+            // TODO: retry due to all the things that go wrong
+            const nixInstall = yield tc.downloadTool('https://nixos.org/nix/install');
+            yield exec.exec("sh", [nixInstall]);
+            core.exportVariable('PATH', `${PATH}:${home}/.nix-profile/bin`);
+            core.exportVariable('NIX_PATH', `/nix/var/nix/profiles/per-user/${username}/channels`);
+            // macOS needs certificates hints
+            if (fs_1.existsSync(CERTS_PATH)) {
+                core.exportVariable('NIX_SSL_CERT_FILE', CERTS_PATH);
+            }
+        }
+        catch (error) {
+            core.setFailed(`Action failed with error: ${error}`);
+            throw (error);
+        }
     });
 }
-child_process_1.execFileSync(`${__dirname}/install-nix.sh`, { stdio: 'inherit' });
-// nc doesn't work correctly on macOS :(
-awaitSocket();
+run();

lib/utils.js

@@ -0,0 +1,8 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+function extrasperse(elem, array) {
+    const init = [];
+    return array.reduce((r, a) => r.concat(elem, a), init);
+}
+exports.extrasperse = extrasperse;
+;

src/main.ts

@@ -1,20 +1,46 @@
-import { execFileSync } from 'child_process';
-import { exit } from 'process';
-import { createConnection } from 'net';
+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 awaitSocket() {
-  const daemonSocket = createConnection({ path: '/nix/var/nix/daemon-socket/socket' });
-  daemonSocket.on('error', async () => {
-    console.log('Waiting for daemon socket to be available, reconnecting...');
-    await new Promise(resolve => setTimeout(resolve, 500));
-    await awaitSocket();
-  });
-  daemonSocket.on('connect', () => {
-    exit(0);
-  });
+async function run() {
+  try {
+    const home = homedir();
+    const {username} = userInfo();
+    const PATH = process.env.PATH;  
+    const INSTALL_PATH = '/opt/nix';
+    const CERTS_PATH = home + '/.nix-profile/etc/ssl/certs/ca-bundle.crt';
+
+    // 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 ${INSTALL_PATH}`]);
+      await exec.exec("/System/Library/Filesystems/apfs.fs/Contents/Resources/apfs.util", ["-B"]);
+      core.exportVariable('NIX_IGNORE_SYMLINK_STORE', "1");  
+    }
+
+    // TODO: retry due to all the things that go wrong
+    const nixInstall = await tc.downloadTool('https://nixos.org/nix/install');
+    await exec.exec("sh", [nixInstall]);
+    core.exportVariable('PATH', `${PATH}:${home}/.nix-profile/bin`)
+    core.exportVariable('NIX_PATH', `/nix/var/nix/profiles/per-user/${username}/channels`)
+
+    // macOS needs certificates hints
+    if (existsSync(CERTS_PATH)) {
+      core.exportVariable('NIX_SSL_CERT_FILE', CERTS_PATH);
+    }
+  } catch (error) {
+    core.setFailed(`Action failed with error: ${error}`);
+    throw(error);
+  } 
 }
 
-execFileSync(`${__dirname}/install-nix.sh`, { stdio: 'inherit' });
-
-// nc doesn't work correctly on macOS :(
-awaitSocket();
+run();