freshen up README

.github/workflows/test.yml

@@ -71,11 +71,10 @@ jobs:
     - name: Install Nix
       uses: ./
       with:
-        install_url: https://nixos-nix-install-tests.cachix.org/serve/i6laym9jw3wg9mw6ncyrk6gjx4l34vvx/install
+        install_url: https://nixos-nix-install-tests.cachix.org/serve/lb41az54kzk6j12p81br4bczary7m145/install
         install_options: '--tarball-url-prefix https://nixos-nix-install-tests.cachix.org/serve'
         extra_nix_config: |
           experimental-features = nix-command flakes
-          access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
     - run: nix flake show github:NixOS/nixpkgs
 
   installer-options:
@@ -90,7 +89,7 @@ jobs:
     - name: Install Nix
       uses: ./
       with: 
-        nix_path: nixpkgs=channel:nixos-21.05
+        nix_path: nixpkgs=channel:nixos-20.03
-        install_url: https://nixos-nix-install-tests.cachix.org/serve/i6laym9jw3wg9mw6ncyrk6gjx4l34vvx/install
+        install_url: https://nixos-nix-install-tests.cachix.org/serve/lb41az54kzk6j12p81br4bczary7m145/install
         install_options: '--tarball-url-prefix https://nixos-nix-install-tests.cachix.org/serve'
     - run: nix-build test.nix

README.md

@@ -33,7 +33,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2.3.4
-    - uses: cachix/install-nix-action@v13
+    - uses: cachix/install-nix-action@v12
       with:
         nix_path: nixpkgs=channel:nixos-unstable
     - run: nix-build
@@ -52,15 +52,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2.3.4
-    - uses: cachix/install-nix-action@v13
+    - uses: cachix/install-nix-action@v12
       with:
-        install_url: https://nixos-nix-install-tests.cachix.org/serve/i6laym9jw3wg9mw6ncyrk6gjx4l34vvx/install
+        install_url: https://nixos-nix-install-tests.cachix.org/serve/lb41az54kzk6j12p81br4bczary7m145/install
         install_options: '--tarball-url-prefix https://nixos-nix-install-tests.cachix.org/serve'
         extra_nix_config: |
           experimental-features = nix-command flakes
-          access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+    - run: nix-build
-    - run: nix build
-    - run: nix flake check
 ```
 
 To install Nix from any commit, go to [the corresponding installer_test action](https://github.com/NixOS/nix/runs/2219534360) and click on "Run cachix/install-nix-action@XX" step and expand the first line.
@@ -80,10 +78,7 @@ To install Nix from any commit, go to [the corresponding installer_test action](
 ### How do I print nixpkgs version I have configured?
 
 
-```yaml
+```nix-instantiate --eval -E '(import <nixpkgs> {}).lib.version'```
-- name: Print nixpkgs version
-  run: nix-instantiate --eval -E '(import <nixpkgs> {}).lib.version'
-```
 
 ### How can I run NixOS tests?
 
@@ -95,6 +90,7 @@ With the following inputs:
         extra_nix_config: "system-features = nixos-test benchmark big-parallel kvm"
 ```
 
+
 [Note that there's no hardware acceleration on GitHub Actions.](https://github.com/actions/virtual-environments/issues/183#issuecomment-610723516).
 
 ### How can I install packages via nix-env from the specified `nix_path`?
@@ -103,31 +99,6 @@ With the following inputs:
 nix-env -i mypackage -f '<nixpkgs>'
 ```
 
-### How do I add a binary cache?
-
-If the binary cache you want to add is hosted on [Cachix](https://cachix.org/) and you are
-using [cachix-action](https://github.com/cachix/cachix-action), you
-should use their `extraPullNames` input like this:
-
-```yaml
-- uses: cachix/cachix-action@vXX
-   with:
-     name: mycache
-     authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
-     extraPullNames: nix-community
-```
-
-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@vXX
-  with:
-    extra_nix_config: |
-      trusted-public-keys = hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ= cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
-      substituters = https://hydra.iohk.io https://cache.nixos.org/
-```
-
 ## Hacking
 
 Install the dependencies

lib/install-nix.sh

@@ -8,7 +8,7 @@ fi
 
 # Configure Nix
 add_config() {
-  echo "$1" | tee -a /tmp/nix.conf >/dev/null
+  echo "$1" | sudo tee -a /tmp/nix.conf >/dev/null
 }
 # Set jobs to number of cores
 add_config "max-jobs = auto"
@@ -21,31 +21,23 @@ fi
 
 # Nix installer flags
 installer_options=(
+  --daemon
+  --daemon-user-count 4
   --no-channel-add
   --darwin-use-unencrypted-nix-store-volume
   --nix-extra-conf-file /tmp/nix.conf
 )
-
-# only use the nix-daemon settings if on darwin (which get ignored) or systemd is supported
-if [[ $OSTYPE =~ darwin || -e /run/systemd/system ]]; then
-  installer_options+=(
-    --daemon
-    --daemon-user-count `python -c 'import multiprocessing as mp; print(mp.cpu_count() * 2)'`
-  )
-else
-  # "fix" the following error when running nix*
-  # error: the group 'nixbld' specified in 'build-users-group' does not exist
-  mkdir -m 0755 /etc/nix
-  echo "build-users-group =" > /etc/nix/nix.conf
-fi
-
 if [[ $INPUT_INSTALL_OPTIONS != "" ]]; then
   IFS=' ' read -r -a extra_installer_options <<< $INPUT_INSTALL_OPTIONS
   installer_options=("${extra_installer_options[@]}" "${installer_options[@]}")
 fi
 
 echo "installer options: ${installer_options[@]}"
+# On self-hosted runners we don't need to install more than once
+if [[ ! -d /nix/store ]] 
+then 
   sh <(curl --retry 5 --retry-connrefused -L "${INPUT_INSTALL_URL:-https://nixos.org/nix/install}") "${installer_options[@]}"
+fi
 
 if [[ $OSTYPE =~ darwin ]]; then
   # Disable spotlight indexing of /nix to speed up performance

yarn.lock

@@ -737,10 +737,10 @@ chalk@^2.0.0, chalk@^2.0.1, chalk@^2.4.2:
     escape-string-regexp "^1.0.5"
     supports-color "^5.3.0"
 
-chownr@^1.1.4:
+chownr@^1.1.1:
-  version "1.1.4"
+  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.4.tgz#6fc9d7b42d32a583596337666e7d08084da2cc6b"
+  resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.3.tgz#42d837d5239688d55f303003a508230fa6727142"
-  integrity sha512-jJ0bqzaylmJtVnNgzTeSOs8DPavpbYgEr/b0YL8/2GO3xJEhInFmhKMUnEJQjZumK7KXGFhUy89PrsJWlakBVg==
+  integrity sha512-i70fVHhmV3DtTl6nqvZOnIjbY0Pe4kAUjwHj8z0zAdgBtYrJyYwLKCCuRBQ5ppkyL0AkN7HKRnETdmdp1zqNXw==
 
 ci-info@^2.0.0:
   version "2.0.0"
@@ -1222,7 +1222,7 @@ fragment-cache@^0.2.1:
   dependencies:
     map-cache "^0.2.2"
 
-fs-minipass@^1.2.7:
+fs-minipass@^1.2.5:
   version "1.2.7"
   resolved "https://registry.yarnpkg.com/fs-minipass/-/fs-minipass-1.2.7.tgz#ccff8570841e7fe4265693da88936c55aed7f7c7"
   integrity sha512-GWSSJGFy4e9GUeCcbIkED+bgAoFyj7XF1mV8rma3QW4NIqX9Kyx79N/PF61H5udOV3aY1IaMLs6pGbH71nlCTA==
@@ -1313,9 +1313,9 @@ growly@^1.3.0:
   integrity sha1-8QdIy+dq+WS3yWyTxrzCivEgwIE=
 
 handlebars@^4.1.2:
-  version "4.7.7"
+  version "4.7.6"
-  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.7.7.tgz#9ce33416aad02dbd6c8fafa8240d5d98004945a1"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.7.6.tgz#d4c05c1baf90e9945f77aa68a7a219aa4a7df74e"
-  integrity sha512-aAcXm5OAfE/8IXkcZvCepKU3VzW1/39Fb5ZuqMtgI/hT8X2YgoMvBY5dLhq/cpOvw7Lk1nK/UF71aLG/ZnVYRA==
+  integrity sha512-1f2BACcBfiwAfStCKZNrUCgqNZkGsAT7UM3kkYtXuLo0KnaVfjKOyf7PRzB6++aK9STyT1Pd2ZCPe3EGOXleXA==
   dependencies:
     minimist "^1.2.5"
     neo-async "^2.6.0"
@@ -1391,9 +1391,9 @@ has@^1.0.1, has@^1.0.3:
     function-bind "^1.1.1"
 
 hosted-git-info@^2.1.4:
-  version "2.8.9"
+  version "2.8.4"
-  resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.8.9.tgz#dffc0bf9a21c02209090f2aa69429e1414daf3f9"
+  resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.8.4.tgz#44119abaf4bc64692a16ace34700fed9c03e2546"
-  integrity sha512-mxIDAb9Lsm6DoOJ7xH+5+X4y1LU/4Hi50L9C5sIswK3JzULS4bwk1FvjdBgvYR4bzT4tuUQiC15FE2f5HbLvYw==
+  integrity sha512-pzXIvANXEFrc5oFFXRMkbLPQ2rXRoDERwDLyrcUxGhaZhgP54BBSl9Oheh7Vv0T090cszWBxPjkQQ5Sq1PbBRQ==
 
 html-encoding-sniffer@^1.0.2:
   version "1.0.2"
@@ -2221,9 +2221,9 @@ lodash.sortby@^4.7.0:
   integrity sha1-7dFMgk4sycHgsKG0K7UhBRakJDg=
 
 lodash@^4.17.11, lodash@^4.17.13:
-  version "4.17.21"
+  version "4.17.19"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
-  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
+  integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
 
 loose-envify@^1.0.0:
   version "1.4.0"
@@ -2307,12 +2307,25 @@ minimatch@^3.0.4:
   dependencies:
     brace-expansion "^1.1.7"
 
+minimist@0.0.8:
+  version "0.0.8"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
+  integrity sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=
+
 minimist@^1.1.1, minimist@^1.2.0, minimist@^1.2.5:
   version "1.2.5"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
   integrity sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==
 
-minipass@^2.6.0, minipass@^2.9.0:
+minipass@^2.6.0, minipass@^2.8.6:
+  version "2.8.6"
+  resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.8.6.tgz#620d889ace26356391d010ecb9458749df9b6db5"
+  integrity sha512-lFG7d6g3+/UaFDCOtqPiKAC9zngWWsQZl1g5q6gaONqrjq61SX2xFqXMleQiFVyDpYwa018E9hmlAFY22PCb+A==
+  dependencies:
+    safe-buffer "^5.1.2"
+    yallist "^3.0.0"
+
+minipass@^2.9.0:
   version "2.9.0"
   resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.9.0.tgz#e713762e7d3e32fed803115cf93e04bca9fcc9a6"
   integrity sha512-wxfUjg9WebH+CUDX/CdbRlh5SmfZiy/hpkxaRI16Y9W56Pa75sWgd/rvFilSgrauD9NyFymP/+JFV3KwzIsJeg==
@@ -2320,10 +2333,10 @@ minipass@^2.6.0, minipass@^2.9.0:
     safe-buffer "^5.1.2"
     yallist "^3.0.0"
 
-minizlib@^1.3.3:
+minizlib@^1.2.1:
-  version "1.3.3"
+  version "1.3.2"
-  resolved "https://registry.yarnpkg.com/minizlib/-/minizlib-1.3.3.tgz#2290de96818a34c29551c8a8d301216bd65a861d"
+  resolved "https://registry.yarnpkg.com/minizlib/-/minizlib-1.3.2.tgz#5d24764998f98112586f7e566bd4c0999769dad4"
-  integrity sha512-6ZYMOEnmVsdCeTJVE0W9ZD+pVnE8h9Hma/iOwwRDsdQoePpoX56/8B6z3P9VNwppJuBKNRuFDRNRqRWexT9G9Q==
+  integrity sha512-lsNFqSHdJ21EwKzCp12HHJGxSMtHkCW1EMA9cceG3MkMNARjuWotZnMe3NKNshAvFXpm4loZqmYsCmRwhS2JMw==
   dependencies:
     minipass "^2.9.0"
 
@@ -2335,12 +2348,12 @@ mixin-deep@^1.2.0:
     for-in "^1.0.2"
     is-extendable "^1.0.1"
 
-mkdirp@0.x, mkdirp@^0.5.1, mkdirp@^0.5.5:
+mkdirp@0.x, mkdirp@^0.5.0, mkdirp@^0.5.1:
-  version "0.5.5"
+  version "0.5.1"
-  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.5.tgz#d91cefd62d1436ca0f41620e251288d420099def"
+  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
-  integrity sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==
+  integrity sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=
   dependencies:
-    minimist "^1.2.5"
+    minimist "0.0.8"
 
 ms@2.0.0:
   version "2.0.0"
@@ -2658,9 +2671,9 @@ path-key@^2.0.0, path-key@^2.0.1:
   integrity sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=
 
 path-parse@^1.0.6:
-  version "1.0.7"
+  version "1.0.6"
-  resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.7.tgz#fbc114b60ca42b30d9daf5858e4bd68bbedb6735"
+  resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.6.tgz#d62dbb5679405d72c4737ec58600e9ddcf06d24c"
-  integrity sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==
+  integrity sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==
 
 path-type@^3.0.0:
   version "3.0.0"
@@ -2937,10 +2950,10 @@ rsvp@^4.8.4:
   resolved "https://registry.yarnpkg.com/rsvp/-/rsvp-4.8.5.tgz#c8f155311d167f68f21e168df71ec5b083113734"
   integrity sha512-nfMOlASu9OnRJo1mbEk2cz0D56a1MBNrJ7orjRZQG10XDyuvwksKbuXNp6qa+kbn839HwjwhBzhFmdsaEAfauA==
 
-safe-buffer@^5.0.1, safe-buffer@^5.1.2, safe-buffer@^5.2.1:
+safe-buffer@^5.0.1, safe-buffer@^5.1.2:
-  version "5.2.1"
+  version "5.2.0"
-  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.0.tgz#b74daec49b1148f88c64b68d49b1e815c1f2f519"
-  integrity sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==
+  integrity sha512-fZEwUGbVl7kouZs1jCdMLdt95hdIv0ZeHg6L7qPeciMZhZ+/gdesW4wgTARkrFWEpspjEATAzUGPG8N2jJiwbg==
 
 safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.2"
@@ -3279,17 +3292,17 @@ symbol-tree@^3.2.2:
   integrity sha512-9QNk5KwDF+Bvz+PyObkmSYjI5ksVUYtjW7AU22r2NKcfLJcXp96hkDWU3+XndOsUb+AQ9QhfzfCT2O+CNWT5Tw==
 
 tar@^4:
-  version "4.4.19"
+  version "4.4.13"
-  resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.19.tgz#2e4d7263df26f2b914dee10c825ab132123742f3"
+  resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.13.tgz#43b364bc52888d555298637b10d60790254ab525"
-  integrity sha512-a20gEsvHnWe0ygBY8JbxoM4w3SJdhc7ZAuxkLqh+nvNQN2IOt0B5lLgM490X5Hl8FF0dl0tOf2ewFYAlIFgzVA==
+  integrity sha512-w2VwSrBoHa5BsSyH+KxEqeQBAllHhccyMFVHtGtdMpF4W7IRWfZjFiQceJPChOeTsSDVUpER2T8FA93pr0L+QA==
   dependencies:
-    chownr "^1.1.4"
+    chownr "^1.1.1"
-    fs-minipass "^1.2.7"
+    fs-minipass "^1.2.5"
-    minipass "^2.9.0"
+    minipass "^2.8.6"
-    minizlib "^1.3.3"
+    minizlib "^1.2.1"
-    mkdirp "^0.5.5"
+    mkdirp "^0.5.0"
-    safe-buffer "^5.2.1"
+    safe-buffer "^5.1.2"
-    yallist "^3.1.1"
+    yallist "^3.0.3"
 
 test-exclude@^5.2.3:
   version "5.2.3"
@@ -3429,9 +3442,9 @@ typescript@^3.5.1:
   integrity sha512-N7bceJL1CtRQ2RiG0AQME13ksR7DiuQh/QehubYcghzv20tnh+MQnQIuJddTmsbqYj+dztchykemz0zFzlvdQw==
 
 uglify-js@^3.1.4:
-  version "3.13.5"
+  version "3.10.4"
-  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.13.5.tgz#5d71d6dbba64cf441f32929b1efce7365bb4f113"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.10.4.tgz#dd680f5687bc0d7a93b14a3482d16db6eba2bfbb"
-  integrity sha512-xtB8yEqIkn7zmOyS2zUNBsYCBRhDkvlNxMMY2smuJ/qA8NCHeQvKCF3i9Z4k8FJH4+PJvZRtMrPynfZ75+CSZw==
+  integrity sha512-kBFT3U4Dcj4/pJ52vfjCSfyLyvG9VYYuGYPmrPvAxRw/i7xHiT4VvCev+uiEMcEEiu6UNB6KgWmGtSUYIWScbw==
 
 underscore@1.8.3:
   version "1.8.3"
@@ -3605,9 +3618,9 @@ write-file-atomic@2.4.1:
     signal-exit "^3.0.2"
 
 ws@^5.2.0:
-  version "5.2.3"
+  version "5.2.2"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-5.2.3.tgz#05541053414921bc29c63bee14b8b0dd50b07b3d"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-5.2.2.tgz#dffef14866b8e8dc9133582514d1befaf96e980f"
-  integrity sha512-jZArVERrMsKUatIdnLzqvcfydI85dvd/Fp1u/VOpfdDWQ4c9qWXe+VIeAbQ5FrDwciAkr+lzofXLz3Kuf26AOA==
+  integrity sha512-jaHFD6PFv6UgoIVda6qZllptQsMlDEJkTQcybzzXDYM1XO9Y8em691FGMPmM46WGyLU4z9KMgQN+qrux/nhlHA==
   dependencies:
     async-limiter "~1.0.0"
 
@@ -3621,10 +3634,10 @@ y18n@^4.0.0:
   resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.1.tgz#8db2b83c31c5d75099bb890b23f3094891e247d4"
   integrity sha512-wNcy4NvjMYL8gogWWYAO7ZFWFfHcbdbE57tZO8e4cbpj8tfUcwrwqSl3ad8HxpYWCdXcJUCeKKZS62Av1affwQ==
 
-yallist@^3.0.0, yallist@^3.1.1:
+yallist@^3.0.0, yallist@^3.0.3:
-  version "3.1.1"
+  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.1.1.tgz#dbb7daf9bfd8bac9ab45ebf602b8cbad0d5d08fd"
+  resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.1.0.tgz#906cc2100972dc2625ae78f566a2577230a1d6f7"
-  integrity sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==
+  integrity sha512-6gpP93MR+VOOehKbCPchro3wFZNSNmek8A2kbkOAZLIZAYx1KP/zAqwO0sOHi3xJEb+UBz8NaYt/17UNit1Q9w==
 
 yargs-parser@10.x:
   version "10.1.0"