scripts/release/download-cabal-install-release-binaries.sh

   1 #!/usr/bin/env bash
   2
   3 # A script to download the release binary files for a given cabal release
   4 # from upstream "downlods.haskell.org".
   5 # It accepts the first and only argument as the release number.
   6 #
   7 # useage:-
   8 #   $ download-cabal-install-release-binaries.sh "3.10.1.0"
   9 #
  10 # This was initally made to be used with ./create-release-metadata-for-ghcup.sh
  11
  12 set -eu
  13 set -o pipefail
  14
  15 RELEASE=$1
  16
  17 echo "RELEASE: $RELEASE"
  18
  19 for com in wget sha256sum ; do
  20         command -V ${com} >/dev/null 2>&1
  21 done
  22
  23 [ ! -d "binary-downloads/cabal-install-${RELEASE}-binaries" ]
  24
  25 mkdir -p "binary-downloads/cabal-install-${RELEASE}-binaries"
  26
  27 cd "binary-downloads/cabal-install-${RELEASE}-binaries"
  28
  29 ## Download release files
  30 echo "Downloading form: \"https://downloads.haskell.org/~cabal/cabal-install-${RELEASE}/\""
  31 wget --no-parent -r --reject "index.html*" --no-directories "https://downloads.haskell.org/~cabal/cabal-install-${RELEASE}/"
  32
  33 ## Verify that sha256 sums of downloaded files match the ones mentioned in the upstream SHA256SUMS file
  34 echo "verifying checksums for downloaded files..."
  35
  36 if sha256sum --check ./SHA256SUMS; then
  37     echo "All checksums match!"
  38     echo "Successfully downloaded binaries for release: ${RELEASE}"
  39 else
  40     echo "checksums of downloaded files do no match the ones listed in upstream SHA256SUMS file."
  41     echo "please try deleting \"binary-downloads/cabal-install-${RELEASE}-binaries\" folder and downloading again."
  42 fi