sage-fix-pkg-checksums

#!/usr/bin/env bash

for upstream in $SAGE_ROOT/upstream/*.tar*
do
    tarball=`basename "$upstream"`
    pkg_name=${tarball%-*}
    pkg_compression=${tarball#*.tar}   # gz or bz2
    if [ -e "$SAGE_ROOT/build/pkgs/$pkg_name" ]; then
        sage_version=`cat "$SAGE_ROOT/build/pkgs/$pkg_name/package-version.txt" | sed 's/\.p[0-9][0-9]*$//'`
        if [ ${tarball%.tar*} = "$pkg_name-$sage_version" ]; then
            echo $tarball
            checksums="$SAGE_ROOT/build/pkgs/$pkg_name/checksums.ini"
            echo "tarball=$pkg_name-VERSION.tar$pkg_compression" > $checksums
            echo -n "sha1=" >> $checksums
            shasum -a 1 $upstream | sed 's/ .*//' >> $checksums
            echo -n "md5=" >> $checksums
            if command -v md5 > /dev/null; then
                md5 $upstream | sed 's/.*= *//' >> $checksums
            else
                md5sum $upstream | sed 's/ .*//' >> $checksums
            fi
            echo -n "cksum=" >> $checksums
            cksum $upstream | sed 's/ .*//' >> $checksums
        fi
    fi
done