Linux downloads fail for `4.1.x`

[imlucas]

SERVER-37316 removed generic Linux tarballs so... Travis currently fails hard for MONGODB_VERSION=unstable...

3 things to do:

• Add detection for specific flavors and versions to mongodb-download-url (see below)
• Show nice error message and bail if the DL fails
• Switch to a learna repo and import all mongodb-version-manager deps

@stennie pointed me at how to handle this for specific flavors and versions:

  local distro_id= distro_version=
  if lsb_release >/dev/null 2>&1; then
    # If the lsb_release(1) tool is installed, use it.
    distro_id=`lsb_release -si`
    distro_version=`lsb_release -sr`
    if test "$distro_version" = testing; then
      distro_version=
    fi
  fi
  if test -z "$distro_version"; then
    if test -f /etc/lsb-release; then
      # In the case where the distro provides an /etc/lsb-release file, but the lsb_release(1) util isn't installed.
      distro_id=$(sed -ne 's/^DISTRIB_ID=//p' /etc/lsb-release | sed -e 's/^["'"'"']//' -e 's/["'"'"']$//' -e 's/\\\(.\)/\1/g')
      distro_version=$(sed -ne 's/^DISTRIB_RELEASE=//p' /etc/lsb-release | sed -e 's/^["'"'"']//' -e 's/["'"'"']$//' -e 's/\\\(.\)/\1/g')
    elif test -f /etc/debian_version; then
      # Debian generally doesn't install lsb_release(1) or a /etc/lsb-release file, so we figure it out manually.
      distro_version=`cat /etc/debian_version`
      case "$distro_version" in
        etch|etch/*)
          distro_version=4 ;;
        lenny|lenny/*)
          distro_version=5 ;;
        squeeze|squeeze/*)
          distro_version=6 ;;
        wheezy|wheezy/*)
          distro_version=7 ;;
        jessie|jessie/*)
          distro_version=8 ;;
        stretch|stretch/*)
          distro_version=9 ;;
        buster|buster/*)
          distro_version=10 ;;
        bullseye|bullseye/*)
          distro_version=11 ;;
        bookworm|bookworm/*)
          distro_version=12 ;;
      esac
      distro_id=debian
    elif test -f /etc/os-release; then
      # Suse, opensuse, amazon linux, centos (but not redhat)
      distro_id=$(sed -ne 's/^ID=//p' /etc/os-release | sed -e 's/^["'"'"']//' -e 's/["'"'"']$//' -e 's/\\\(.\)/\1/g')
      distro_version=$(sed -ne 's/^VERSION_ID=//p' /etc/os-release | sed -e 's/^["'"'"']//' -e 's/["'"'"']$//' -e 's/\\\(.\)/\1/g')
    fi
  fi

  distro_id=`echo "$distro_id" | tr '[:upper:]' '[:lower:]'`
  distro_version=`echo "$distro_version" | tr '[:upper:]' '[:lower:]'`
  case "$distro_id" in
    sles) distro_id="suse" ;;
    opensuse) distro_id="suse" ;;
    centos) distro_id="rhel" ;;
    redhatenterpriseserver) distro_id="rhel" ;;
  esac

  local distro="$distro_id-$distro_version"

  if test "$community" = 1; then
    amazon1="amazon"
  else
    amazon1="amzn64"
  fi

  # Different versions of MongoDB have builds for different distributions.
  # As m allows installing old MongoDB versions, we can look for
  # binaries for distributions that the latest MongoDB release is not
  # built for. Conversely, an old MongoDB version does not have to have
  # builds available for distributions that the latest version supports.
  #
  # The logic generally is to start with the correct distribution, then try
  # one version older and one version newer. This should handle most cases
  # reasonably well.
  case "$distro" in
    debian-6*) distros="" ;;
    debian-7*) distros="debian71" ;;
    debian-8*) distros="debian81 debian71" ;;
    debian-9*) distros="debian92 debian81 debian71" ;;
    debian-*)  distros="debian92 debian81 debian71" ;;

    ubuntu-12*) distros="ubuntu1204 debian71" ;;
    ubuntu-14*) distros="ubuntu1404 ubuntu1204 debian71" ;;
    ubuntu-16*) distros="ubuntu1604 ubuntu1404 ubuntu1204 debian71" ;;
    ubuntu-18*) distros="ubuntu1804 ubuntu1604 ubuntu1404 ubuntu1204 debian71" ;;
    ubuntu-*)   distros="ubuntu1804 ubuntu1604 ubuntu1404 ubuntu1204" ;;

    suse-10*) distros="" ;;
    suse-11*) distros="suse11" ;;
    suse-12*) distros="suse12 suse11" ;;
    suse-*)   distros="suse12 suse11" ;;

    amzn-1) distros="$amazon1 rhel70 rhel62" ;;
    amzn-2) distros="amazon2 $amazon1 rhel70 rhel62" ;;
    amzn-*) distros="amazon2 $amazon1" ;;

    rhel-5*) distros="rhel55 rhel57" ;;
    rhel-6*) distros="rhel62 rhel55 rhel57 $amazon1" ;;
    rhel-7*) distros="rhel70 rhel62 rhel55 rhel57 $amazon1" ;;
    rhel-*)  distros="rhel70 rhel62 rhel55 rhel57" ;;

    *) distros="" ;;
  esac

  if [ "$_legacy_only" = y ]; then
    distros=""
  fi

  # determine the download url
  if [[ "$community" == 1 ]]; then
    local tarball="mongodb-$sslbuild-$arch-$version.tgz"
    # shadowing earlier $distro
    for distro in $distros; do
      if good "http://fastdl.mongodb.org/$os/mongodb-$sslbuild-$arch-$distro-$version.tgz"; then
        tarball="mongodb-$sslbuild-$arch-$distro-$version.tgz"
        break
      fi
    done
    local url="http://fastdl.mongodb.org/$os/$tarball"
  else # enterprise version
    if [[ "$os" == linux ]]; then
      # for linux fetch the rhel7 tarball by default
      local dist=rhel70
      # shadowing earlier $distro
      for distro in $distros; do
        if good "http://downloads.10gen.com/$os/mongodb-$os-$arch-enterprise-$distro-$version.tgz"; then
          dist=$distro
          break
        fi
      done
      local tarball="mongodb-$os-$arch-enterprise-$dist-$version.tgz"
    else
      local tarball="mongodb-$os-$arch-enterprise-$version.tgz"
    fi
    local url="http://downloads.10gen.com/$os/$tarball"
    version="$version-ent"
  fi

[imlucas]

@stennie as you already have this in m... any chance you'd be interested in taking this one?

[stennie]

@imlucas I won't have spare tuits for a few weeks, but could pick this up if it hasn't been addressed by then.

[imlucas]

mongodb-js/download-url#80