pkgs/development/compilers/dart/update.sh

   1 #!/usr/bin/env nix-shell
   2 #!nix-shell -i bash -p curl jq
   3
   4 set -euo pipefail
   5
   6 # so if the script fails, debug logs are on stderr
   7 log() {
   8   >&2 echo "DART_UPDATER: $@"
   9 }
  10
  11 # fetch the latest version number from upstream
  12 NEW_VER_DETAILS=$(curl -sL https://storage.googleapis.com/dart-archive/channels/stable/release/latest/VERSION)
  13 NEW_VER=$(jq -r '.version' <<< "$NEW_VER_DETAILS")
  14
  15 MY_PATH=$(dirname $(realpath "$0"))
  16 SRC_FILE=$(mktemp)
  17
  18 log "file to write is $SRC_FILE"
  19
  20 PRELUDE="let version = \"$NEW_VER\"; in
  21 { fetchurl }: {
  22   versionUsed = version;"
  23 echo "$PRELUDE" > "$SRC_FILE"
  24 log "wrote prelude"
  25
  26 # Fetches the source, then  writes the fetcher and hash into the sources file.
  27 # Arguments:
  28 #   - $1: VARIABLE NAME of (table of nix platform -> dart platform mappings) ("DARWIN_PLATFORMS"|"LIN_PLATFORMS")
  29 #   - $2: Dart-OS ("macos"|"linux")
  30 write_for_platform() {
  31   BASE_OF_ALL_URLS='https://storage.googleapis.com/dart-archive/channels/stable/release'
  32   BASE_URL_WRITTEN="$BASE_OF_ALL_URLS/\${version}/sdk"
  33   BASE_URL_FETCHED="$BASE_OF_ALL_URLS/$NEW_VER/sdk"
  34
  35   TABLE_NAME=$1
  36   declare -n TABLE=$TABLE_NAME
  37
  38   for platform in "${!TABLE[@]}"; do
  39     DART_PLATFORM="${TABLE[$platform]}"
  40     log "trying for dartplatform $DART_PLATFORM (platform $platform) (OS $2)"
  41
  42     URL_POSTFIX="dartsdk-$2-$DART_PLATFORM-release.zip"
  43     URL="$BASE_URL_FETCHED/$URL_POSTFIX"
  44     log "URL for $DART_PLATFORM: $URL"
  45
  46     HASH=$(nix-prefetch-url "$URL" --type sha256)
  47     log "hash for platform $platform: $HASH"
  48
  49     FETCHER="  \"\${version}-$platform\" = fetchurl {
  50     url = \"$BASE_URL_WRITTEN/$URL_POSTFIX\";
  51     sha256 = \"$HASH\";
  52   };"
  53
  54     echo "$FETCHER" >> $SRC_FILE
  55   done
  56   log "finished for $1"
  57
  58 }
  59
  60 # Map nix platforms -> Dart platforms
  61 X8664="x64"
  62 AARCH64="arm64"
  63 I686="ia32"
  64 declare -A DARWIN_PLATFORMS=(["aarch64-darwin"]="$AARCH64"
  65         ["x86_64-darwin"]="$X8664")
  66
  67 declare -A LIN_PLATFORMS=( ["x86_64-linux"]="$X8664"
  68         ["i686-linux"]="$I686"
  69         ["aarch64-linux"]="$AARCH64")
  70
  71 write_for_platform "DARWIN_PLATFORMS" "macos"
  72 write_for_platform "LIN_PLATFORMS" "linux"
  73
  74 echo '}' >> $SRC_FILE
  75
  76 log "moving tempfile to target directory"
  77 mv "$SRC_FILE" "$MY_PATH/sources.nix"