Use auto-uid-allocate

.editorconfig

@@ -1,15 +0,0 @@
-# EditorConfig is awesome: https://EditorConfig.org
-
-# top-most EditorConfig file
-root = true
-
-# Unix-style newlines with a newline ending every file
-[*]
-charset = utf-8
-end_of_line = lf
-indent_size = 2
-indent_style = space
-insert_final_newline = true
-
-[LICENSE]
-indent_size = unset

.github/workflows/test.yml

@@ -12,7 +12,7 @@ jobs:
         os: [ubuntu-latest, macos-latest]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v3
     - name: Install Nix
       uses: ./
       with:
@@ -28,7 +28,7 @@ jobs:
         os: [ubuntu-latest, macos-latest]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v3
     - name: Install Nix
       uses: ./
       with:
@@ -42,7 +42,7 @@ jobs:
         os: [ubuntu-latest, macos-latest]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v3
     - name: Install Nix
       uses: ./
       with:
@@ -58,7 +58,7 @@ jobs:
         os: [ubuntu-latest, macos-latest]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v3
     - name: Install Nix
       uses: ./
     - run: nix flake show github:NixOS/nixpkgs
@@ -69,7 +69,7 @@ jobs:
         os: [ubuntu-latest, macos-latest]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v3
     - name: Install Nix
       uses: ./
       with:
@@ -84,7 +84,7 @@ jobs:
           os: [ubuntu-latest, macos-latest]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v3
     - name: Install Nix
       uses: ./
       with:
@@ -98,7 +98,7 @@ jobs:
           os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v3
     - run: curl https://raw.githubusercontent.com/nektos/act/master/install.sh | sudo bash
     - run: docker pull ghcr.io/catthehacker/ubuntu:js-20.04
     - run: ./bin/act -P ubuntu-latest=ghcr.io/catthehacker/ubuntu:js-20.04 push -j simple-build

README.md

@@ -6,8 +6,8 @@ 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)
+or [pin nixpkgs yourself](https://nix.dev/reference/pinning-nixpkgs.html)
-(see also [pinning tutorial](https://nix.dev/tutorials/towards-reproducibility-pinning-nixpkgs)).
+(see also [pinning tutorial](https://nix.dev/tutorials/towards-reproducibility-pinning-nixpkgs.html)).
 
 # Features
 
@@ -34,7 +34,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - uses: cachix/install-nix-action@v22
+    - uses: cachix/install-nix-action@v20
       with:
         nix_path: nixpkgs=channel:nixos-unstable
     - run: nix-build
@@ -52,7 +52,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - uses: cachix/install-nix-action@v22
+    - uses: cachix/install-nix-action@v20
       with:
         github_access_token: ${{ secrets.GITHUB_TOKEN }}
     - run: nix build
@@ -120,7 +120,7 @@ Otherwise, you can add any binary cache to nix.conf using
 install-nix-action's own `extra_nix_config` input:
 
 ```yaml
-- uses: cachix/install-nix-action@v22
+- uses: cachix/install-nix-action@v20
   with:
     extra_nix_config: |
       trusted-public-keys = hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ= cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=

install-nix.sh

@@ -17,12 +17,8 @@ trap 'rm -rf "$workdir"' EXIT
 add_config() {
   echo "$1" >> "$workdir/nix.conf"
 }
-add_config "show-trace = true"
 # Set jobs to number of cores
 add_config "max-jobs = auto"
-if [[ $OSTYPE =~ darwin ]]; then
-  add_config "ssl-cert-file = /etc/ssl/cert.pem"
-fi
 # Allow binary caches for user
 add_config "trusted-users = root ${USER:-}"
 # Add github access token
@@ -36,7 +32,7 @@ if [[ -n "${INPUT_EXTRA_NIX_CONFIG:-}" ]]; then
   add_config "$INPUT_EXTRA_NIX_CONFIG"
 fi
 if [[ ! $INPUT_EXTRA_NIX_CONFIG =~ "experimental-features" ]]; then
-  add_config "experimental-features = nix-command flakes"
+  add_config "experimental-features = nix-command flakes auto-allocate-uids"
 fi
 
 # Nix installer flags
@@ -50,8 +46,9 @@ installer_options=(
 if [[ (! $INPUT_INSTALL_OPTIONS =~ "--no-daemon") && ($OSTYPE =~ darwin || -e /run/systemd/system) ]]; then
   installer_options+=(
     --daemon
-    --daemon-user-count "$(python3 -c 'import multiprocessing as mp; print(mp.cpu_count() * 2)')"
+    --daemon-user-count 1
   )
+  add_config "auto-allocate-uids = true"
 else
   # "fix" the following error when running nix*
   # error: the group 'nixbld' specified in 'build-users-group' does not exist
@@ -70,7 +67,7 @@ echo "installer options: ${installer_options[*]}"
 
 # There is --retry-on-errors, but only newer curl versions support that
 curl_retries=5
-while ! curl -sS -o "$workdir/install" -v --fail -L "${INPUT_INSTALL_URL:-https://releases.nixos.org/nix/nix-2.17.0/install}"
+while ! curl -sS -o "$workdir/install" -v --fail -L "${INPUT_INSTALL_URL:-https://releases.nixos.org/nix/nix-2.15.1/install}"
 do
   sleep 1
   ((curl_retries--))
@@ -82,6 +79,14 @@ done
 
 sh "$workdir/install" "${installer_options[@]}"
 
+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" >> "$GITHUB_ENV"
+  export NIX_SSL_CERT_FILE=$cert_file
+  sudo launchctl setenv NIX_SSL_CERT_FILE "$cert_file"
+fi
+
 # Set paths
 echo "/nix/var/nix/profiles/default/bin" >> "$GITHUB_PATH"
 # new path for nix 2.14
@@ -91,10 +96,5 @@ if [[ -n "${INPUT_NIX_PATH:-}" ]]; then
   echo "NIX_PATH=${INPUT_NIX_PATH}" >> "$GITHUB_ENV"
 fi
 
-# Set temporary directory (if not already set) to fix https://github.com/cachix/install-nix-action/issues/197
-if [[ -z "${TMPDIR:-}" ]]; then
-  echo "TMPDIR=${RUNNER_TEMP}" >> "$GITHUB_ENV"
-fi
-
 # Close the log message group which was opened above
 echo "::endgroup::"