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#!/bin/bash
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set -x -e
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# Took this from rhpkg-simple internally owned by lsedlar@redhat.com
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pkgname=$(basename "$PWD")
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# If running in a git checkout, there will be a config file with url to the
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# remote. We can extract package namespace and name from it. If the file is
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# missing (which it should not really be), let's default to rpms/ namespace.
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ns_pkgname="rpms/$pkgname"
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if [ -r .git/config ]; then
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    url=$(grep " *url *= *" .git/config | cut -d= -f2- | tr -d ' ')
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    namespace=$(basename "$(dirname "$url")")
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    ns_pkgname="$namespace/$pkgname"
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fi
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if [ -d SPECS ]; then
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    # We are in the SIG/Exploded SRPM layout so call get_sources.sh
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    exec /usr/bin/get_sources.sh
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fi
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## This part is also from rhpkg-simple
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if [ -s sources ]; then
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    baseurl=https://sources.stream.rdu2.redhat.com/sources
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    # curl arguments:
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    #   -L          follow redirects
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    #   -H Pragma:  disable caching
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    #   -o          filename where to save results
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    #   -R          use timestamp from remote server
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    #   -S          display error if there is a problem
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    #   --fail      do now write HTML page when there is error
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    #   --retry     up to 5 retries for transient errors
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    #   --max-time  wait for up to 15 seconds on network error
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    # Read first word of first line. For old MD5 format it's the 32 character
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    # hash. Otherwise let's assume the sources have the BSD format where lines
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    # start with hash type.
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    hashtype="$(head -n1 sources | cut -d' ' -f1 | tr '[:upper:]' '[:lower:]')"
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    if [ "${#hashtype}" -ne 32 ]; then
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        # The format is
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        #   SHA512 (filename) = ABCDEF
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        # We don't care about the equals sign. We also assume that all hashes
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        # are of the same type, so we don't have to read it again for each
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        # line.
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        while read -r _ filename _ hash || [[ -n "$filename" && -n "$hash" ]]; do
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            if [ -z "$filename" ] || [ -z "$hash" ]; then
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                continue
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            fi
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            # Remove parenthesis around tarball name
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            filename=${filename#(}
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            tarball=${filename%)}
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            curl -L -H Pragma: -o "./$tarball" -R -S --fail --retry 5 "$baseurl/$ns_pkgname/$tarball/$hashtype/$hash/$tarball"
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        done < sources
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        "${hashtype}sum" -c sources
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    else
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        # Ok, we're working with MD5.
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        while read -r md5sum tarball || [[ -n "$md5sum" && -n "$tarball" ]]; do
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            if [ -z "$md5sum" ] || [ -z "$tarball" ]; then
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                continue
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            fi
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            curl -L -H Pragma: -o "./$tarball" -R -S --fail --retry 5 "$baseurl/$ns_pkgname/$tarball/$md5sum/$tarball"
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        done < sources
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        md5sum -c sources
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    fi
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fi