Fetches gitian assert files from VM and signs them on host machine

fetch_and_sign.sh

#!/bin/sh
SIGNED_BINARIES=0

while getopts ":n:v:s" opt; do
  case $opt in
    n)
      NAME=$OPTARG
      ;;
    v)
      VERSION=$OPTARG
      ;;
    s)
      SIGNED_BINARIES=1
      ;;
    \?)
      echo "Invalid option: -$OPTARG" >&2
      ;;
  esac
done

pushd gitian.sigs
git checkout master
git pull
if [ "$SIGNED_BINARIES" -eq "0" ]; then
    mkdir -p $VERSION-osx-unsigned
    mkdir -p $VERSION-win-unsigned
    mkdir -p $VERSION-linux
    scp -r gitian:gitian.sigs/$VERSION-osx-unsigned/$NAME $VERSION-osx-unsigned
    scp -r gitian:gitian.sigs/$VERSION-win-unsigned/$NAME $VERSION-win-unsigned
    scp -r gitian:gitian.sigs/$VERSION-linux/$NAME $VERSION-linux
else
    mkdir -p $VERSION-osx-signed
    mkdir -p $VERSION-win-signed
    scp -r gitian:gitian.sigs/$VERSION-osx-signed/$NAME $VERSION-osx-signed
    scp -r gitian:gitian.sigs/$VERSION-win-signed/$NAME $VERSION-win-signed
fi
if [ "$SIGNED_BINARIES" -eq "0" ]; then
    # TODO: remove rc suffix from $VERSION and use:
    gpg --output $VERSION-linux/$NAME/bitcoin-linux-0.16-build.assert.sig --detach-sig $VERSION-linux/$NAME/bitcoin-linux-0.16-build.assert 
    gpg --output $VERSION-osx-unsigned/$NAME/bitcoin-osx-0.16-build.assert.sig --detach-sig $VERSION-osx-unsigned/$NAME/bitcoin-osx-0.16-build.assert 
    gpg --output $VERSION-win-unsigned/$NAME/bitcoin-win-0.16-build.assert.sig --detach-sig $VERSION-win-unsigned/$NAME/bitcoin-win-0.16-build.assert 
else
    gpg --output $VERSION-osx-signed/$NAME/bitcoin-dmg-signer-build.assert.sig --detach-sig $VERSION-osx-signed/$NAME/bitcoin-dmg-signer-build.assert 
    gpg --output $VERSION-win-signed/$NAME/bitcoin-win-signer-build.assert.sig --detach-sig $VERSION-win-signed/$NAME/bitcoin-win-signer-build.assert 
fi
if [ "$SIGNED_BINARIES" -eq "0" ]; then
    git checkout -b $VERSION
    git add $VERSION-linux/$NAME
    git add $VERSION-osx-unsigned/$NAME
    git add $VERSION-win-unsigned/$NAME
else
    git checkout -b $VERSION-codesigned
    git add $VERSION-osx-signed/$NAME
    git add $VERSION-win-signed/$NAME
fi
if [ "$SIGNED_BINARIES" -eq "0" ]; then
    git commit -S -a -m "Add $NAME $VERSION non-code signed signatures"
    git push --set-upstream $NAME $VERSION
else
    git commit -S -a -m "Add $NAME $VERSION code signed signatures"
    git push --set-upstream $NAME $VERSION-codesigned
fi
pop