pkgs/by-name/sp/spotify/update.sh

   1 #!/usr/bin/env nix-shell
   2 #! nix-shell -i bash -p curl jq git gnused gnugrep
   3
   4
   5 # executing this script without arguments will
   6 # - find the newest stable spotify version avaiable on snapcraft (https://snapcraft.io/spotify)
   7 # - read the current spotify version from the current nix expression
   8 # - update the nix expression if the versions differ
   9 # - try to build the updated version, exit if that fails
  10 # - give instructions for upstreaming
  11
  12 # Please test the update manually before pushing. There have been errors before
  13 # and because the service is proprietary and a paid account is necessary to do
  14 # anything with spotify automatic testing is not possible.
  15
  16 # As an optional argument you can specify the snapcraft channel to update to.
  17 # Default is `stable` and only stable updates should be pushed to nixpkgs. For
  18 # testing you may specify `candidate` or `edge`.
  19
  20
  21 channel="${1:-stable}" # stable/candidate/edge
  22 nixpkgs="$(git rev-parse --show-toplevel)"
  23 spotify_nix="$nixpkgs/pkgs/applications/audio/spotify/linux.nix"
  24
  25
  26 #
  27 # find the newest stable spotify version avaiable on snapcraft
  28 #
  29
  30 # create bash array from snap info
  31 snap_info=($(
  32   curl -s -H 'X-Ubuntu-Series: 16' \
  33     "https://api.snapcraft.io/api/v1/snaps/details/spotify?channel=$channel" \
  34   | jq --raw-output \
  35     '.revision,.download_sha512,.version,.last_updated'
  36 ))
  37
  38 # "revision" is the actual version identifier on snapcraft, the "version" is
  39 # just for human consumption. Revision is just an integer that gets increased
  40 # by one every (stable or unstable) release.
  41 revision="${snap_info[0]}"
  42 # We need to escape the slashes
  43 hash="$(nix-hash --to-sri --type sha512 ${snap_info[1]} | sed 's|/|\\/|g')"
  44 upstream_version="${snap_info[2]}"
  45 last_updated="${snap_info[3]}"
  46 echo "Latest $channel release is $upstream_version from $last_updated."
  47 #
  48 # read the current spotify version from the currently *committed* nix expression
  49 #
  50
  51 current_nix_version=$(
  52   grep 'version\s*=' "$spotify_nix" \
  53   | sed -Ene 's/.*"(.*)".*/\1/p'
  54 )
  55
  56 echo "Current nix version: $current_nix_version"
  57
  58 #
  59 # update the nix expression if the versions differ
  60 #
  61
  62 if [[ "$current_nix_version" = "$upstream_version" ]]; then
  63   echo "Spotify is already up-to-date"
  64   exit 0
  65 fi
  66
  67 echo "Updating from ${current_nix_version} to ${upstream_version}, released on ${last_updated}"
  68
  69 # search-and-replace revision, hash and version
  70 sed --regexp-extended \
  71   -e 's/rev\s*=\s*"[0-9]+"\s*;/rev = "'"${revision}"'";/' \
  72   -e 's/hash\s*=\s*"[^"]*"\s*;/hash = "'"${hash}"'";/' \
  73   -e 's/version\s*=\s*".*"\s*;/version = "'"${upstream_version}"'";/' \
  74   -i "$spotify_nix"
  75
  76 #
  77 # try to build the updated version
  78 #
  79
  80 export NIXPKGS_ALLOW_UNFREE=1
  81 if ! nix-build -A spotify "$nixpkgs"; then
  82   echo "The updated spotify failed to build."
  83   exit 1
  84 fi
  85
  86 # Commit changes
  87 git add "$spotify_nix"
  88 git commit -m "spotify: ${current_nix_version} -> ${upstream_version}"