test

.github/workflows/test.yml

@@ -9,7 +9,7 @@ jobs:
   simple-build:
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-latest]
+        os: [ubuntu-latest, macos-11.0]
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v2
@@ -58,23 +58,3 @@ jobs:
           sandbox = relaxed
     - run: cat /etc/nix/nix.conf
     - run: nix-build test.nix --arg noChroot true
-
-  flakes:
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest]
-    runs-on: ${{ matrix.os }}
-    steps:
-    - uses: actions/checkout@v2
-      with:
-        # Nix Flakes doesn't work on shallow clones
-        fetch-depth: 0
-    - run: yarn install --frozen-lockfile
-    - run: yarn build
-    - name: Install Nix
-      uses: ./
-      with:
-        install_url: https://github.com/numtide/nix-flakes-installer/releases/download/nix-2.4pre20201221_9fab14a/install
-        extra_nix_config: |
-          experimental-features = nix-command flakes
-    - run: nix flake show github:NixOS/nixpkgs

README.md

@@ -6,8 +6,7 @@ Installs [Nix](https://nixos.org/nix/) on GitHub Actions for the supported platf
 
 By default it has no nixpkgs configured, you have to set `nix_path`
 by [picking a channel](https://status.nixos.org/)
-or [pin nixpkgs yourself](https://nix.dev/reference/pinning-nixpkgs.html) 
+or [pin nixpkgs yourself](https://nix.dev/tutorials/towards-reproducibility-pinning-nixpkgs.html).
-(see also [pinning tutorial](https://nix.dev/tutorials/towards-reproducibility-pinning-nixpkgs.html)).
 
 # Features
 
@@ -17,7 +16,6 @@ or [pin nixpkgs yourself](https://nix.dev/reference/pinning-nixpkgs.html)
 - Allows specifying Nix installation URL via `install_url`
 - Allows specifying extra Nix configration options via `extra_nix_config`
 - Allows specifying `$NIX_PATH` and channels via `nix_path`
-- Share `/nix/store` between builds using [cachix-action](https://github.com/cachix/cachix-action) for simple binary cache setup to speed up your builds and share binaries with your team
 
 ## Usage
 
@@ -32,13 +30,16 @@ jobs:
   tests:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2.3.4
+    - uses: actions/checkout@v2
-    - uses: cachix/install-nix-action@v12
+    - uses: cachix/install-nix-action@v11
       with:
         nix_path: nixpkgs=channel:nixos-unstable
     - run: nix-build
 ```
 
+See also [cachix-action](https://github.com/cachix/cachix-action) for
+simple binary cache setup to speed up your builds and share binaries
+with developers.
 
 ## Usage with Flakes
 
@@ -55,9 +56,9 @@ jobs:
       with:
           # Nix Flakes doesn't work on shallow clones
           fetch-depth: 0
-    - uses: cachix/install-nix-action@v12
+    - uses: cachix/install-nix-action@v11
       with:
-        install_url: https://github.com/numtide/nix-flakes-installer/releases/download/nix-2.4pre20201221_9fab14a/install
+        install_url: https://github.com/numtide/nix-flakes-installer/releases/download/nix-3.0pre20200820_4d77513/install
         extra_nix_config: |
           experimental-features = nix-command flakes
     - run: nix-build
@@ -79,29 +80,11 @@ jobs:
 
 [Currently GitHub Actions are not running on Azure instance types that support nested virtualization](https://github.com/actions/virtual-environments/issues/183#issuecomment-610723516).
 
-### How do I print nixpkgs version I have configured?
+### How do I print nixpkgs version with the channel I have configured?
 
 
 ```nix-instantiate --eval -E '(import <nixpkgs> {}).lib.version'```
 
-### How can I run NixOS tests?
-
-With the following inputs:
-
-```yaml
-    - uses: cachix/install-nix-action@vXX
-      with:
-        extra_nix_config: "system-features = nixos-test benchmark big-parallel kvm"
-```
-
-Note that there's no hardware acceleration on GitHub Actions.
-
-### How can I install packages via nix-env from the specified `nix_path`?
-
-```
-nix-env -i mypackage -f '<nixpkgs>'
-```
-
 ## Hacking
 
 Install the dependencies

action.yml

@@ -3,9 +3,7 @@ description: 'Installs Nix on GitHub Actions for the supported platforms: Linux
 author: 'Domen Kožar'
 inputs:
   install_url:
-    description: 'Installation URL that will contain a script to install Nix.'
+    description: 'Installation URL that will contain a script to install Nix'
-  install_options:
-    description: 'Additional installer flags passed to the installer script.'
   nix_path:
     description: 'Set NIX_PATH environment variable.'
   extra_nix_config:

lib/install-nix.sh

@@ -1,11 +1,6 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-if type -p nix &>/dev/null ; then
-  echo "Aborting: Nix is already installed at $(type -p nix)"
-  exit
-fi
-
 # Configure Nix
 add_config() {
   echo "$1" | sudo tee -a /tmp/nix.conf >/dev/null
@@ -27,11 +22,7 @@ installer_options=(
   --darwin-use-unencrypted-nix-store-volume
   --nix-extra-conf-file /tmp/nix.conf
 )
-if [[ $INPUT_INSTALL_OPTIONS != "" ]]; then
-  installer_options=("${installer_options[@]}" "${INPUT_INSTALL_OPTIONS[@]}")
-fi
 
-echo "installer options: ${installer_options[@]}"
 # On self-hosted runners we don't need to install more than once
 if [[ ! -d /nix/store ]] 
 then 
@@ -44,15 +35,15 @@ if [[ $OSTYPE =~ darwin ]]; then
 
   # macOS needs certificates hints
   cert_file=/nix/var/nix/profiles/default/etc/ssl/certs/ca-bundle.crt
-  echo "NIX_SSL_CERT_FILE=$cert_file" >> "$GITHUB_ENV"
+  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
 
 # Set paths
-echo "/nix/var/nix/profiles/per-user/$USER/profile/bin" >> "$GITHUB_PATH"
+echo "::add-path::/nix/var/nix/profiles/per-user/$USER/profile/bin"
-echo "/nix/var/nix/profiles/default/bin" >> "$GITHUB_PATH"
+echo "::add-path::/nix/var/nix/profiles/default/bin"
 
 if [[ $INPUT_NIX_PATH != "" ]]; then
-  echo "NIX_PATH=${INPUT_NIX_PATH}" >> "$GITHUB_ENV"
+  echo "::set-env name=NIX_PATH::${INPUT_NIX_PATH}"
 fi

package.json

@@ -20,7 +20,7 @@
   "author": "Domen Kožar",
   "license": "ASL2",
   "dependencies": {
-    "@actions/core": "^1.2.6",
+    "@actions/core": "^1.1.0",
     "@actions/exec": "^1.0.1",
     "@actions/tool-cache": "^1.1.2"
   },

yarn.lock

@@ -2,10 +2,10 @@
 # yarn lockfile v1
 
 
-"@actions/core@^1.1.0", "@actions/core@^1.2.6":
+"@actions/core@^1.1.0":
-  version "1.2.6"
+  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/@actions/core/-/core-1.2.6.tgz#a78d49f41a4def18e88ce47c2cac615d5694bf09"
+  resolved "https://registry.yarnpkg.com/@actions/core/-/core-1.1.1.tgz#e08f3dbfe04721bb3d040f8fca2d6d7e1817b2e1"
-  integrity sha512-ZQYitnqiyBc3D+k7LsgSBmMDVkOVidaagDG7j3fOym77jNunWRuYx7VSHa9GNfFZh+zh61xsCjRj4JxMZlDqTA==
+  integrity sha512-O5G6EmlzTVsng7VSpNtszIoQq6kOgMGNTFB/hmwKNNA4V71JyxImCIrL27vVHCt2Cb3ImkaCr6o27C2MV9Ylwg==
 
 "@actions/exec@^1.0.1":
   version "1.0.1"
@@ -1452,9 +1452,9 @@ inherits@2, inherits@~2.0.3:
   integrity sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==
 
 ini@~1.3.0:
-  version "1.3.8"
+  version "1.3.5"
-  resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.8.tgz#a29da425b48806f34767a4efce397269af28432c"
+  resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
-  integrity sha512-JV/yugV2uzW5iMRSiZAyDtQd+nxtUnjeLt0acNdw98kKLrvuRVyB80tsREOE7yvGVgalhZ6RNXCmEHkUKBKxew==
+  integrity sha512-RZY5huIKCMRWDUqZlEi72f/lmXKMvuszcMBduliQ3nnWbx9X/ZBQO7DijMEYS9EhHBb2qacRUMtC7svLwe0lcw==
 
 invariant@^2.2.4:
   version "2.2.4"