#!/bin/bash

set -x -e

# Took this from rhpkg-simple internally owned by lsedlar@redhat.com

pkgname=$(basename "$PWD")

# If running in a git checkout, there will be a config file with url to the

# remote. We can extract package namespace and name from it. If the file is

# missing (which it should not really be), let's default to rpms/ namespace.

ns_pkgname="rpms/$pkgname"

if [ -r .git/config ]; then

    url=$(grep " *url *= *" .git/config | cut -d= -f2- | tr -d ' ')

    namespace=$(basename "$(dirname "$url")")

    ns_pkgname="$namespace/$pkgname"

fi

if [ -d SPECS ]; then

    # We are in the SIG/Exploded SRPM layout so call get_sources.sh

    exec /usr/bin/get_sources.sh

fi

## This part is also from rhpkg-simple

if [ -s sources ]; then

    baseurl=https://sources.stream.rdu2.redhat.com/sources

    # curl arguments:

    #   -L          follow redirects

    #   -H Pragma:  disable caching

    #   -o          filename where to save results

    #   -R          use timestamp from remote server

    #   -S          display error if there is a problem

    #   --fail      do now write HTML page when there is error

    #   --retry     up to 5 retries for transient errors

    #   --max-time  wait for up to 15 seconds on network error

    # Read first word of first line. For old MD5 format it's the 32 character

    # hash. Otherwise let's assume the sources have the BSD format where lines

    # start with hash type.

    hashtype="$(head -n1 sources | cut -d' ' -f1 | tr '[:upper:]' '[:lower:]')"

    if [ "${#hashtype}" -ne 32 ]; then

        # The format is

        #   SHA512 (filename) = ABCDEF

        # We don't care about the equals sign. We also assume that all hashes

        # are of the same type, so we don't have to read it again for each

        # line.

        while read -r _ filename _ hash || [[ -n "$filename" && -n "$hash" ]]; do

            if [ -z "$filename" ] || [ -z "$hash" ]; then

                continue

            fi

            # Remove parenthesis around tarball name

            filename=${filename#(}

            tarball=${filename%)}

            curl -L -H Pragma: -o "./$tarball" -R -S --fail --retry 5 "$baseurl/$ns_pkgname/$tarball/$hashtype/$hash/$tarball"

        done < sources

        "${hashtype}sum" -c sources

    else

        # Ok, we're working with MD5.

        while read -r md5sum tarball || [[ -n "$md5sum" && -n "$tarball" ]]; do

            if [ -z "$md5sum" ] || [ -z "$tarball" ]; then

                continue

            fi

            curl -L -H Pragma: -o "./$tarball" -R -S --fail --retry 5 "$baseurl/$ns_pkgname/$tarball/$md5sum/$tarball"

        done < sources

        md5sum -c sources

    fi

fi