makorel - Release new OPAM package version easily - shell script version

makorel.sh

#!/usr/bin/env bash

USAGE="usage: makorel version [package]"

# with:
# - version: new version to release
# - package: /path/to/package/root/directory (optionnal)

if [ $# -lt 1 ] || [ $# -gt 2 ]; then
    echo "${USAGE}. Exiting with 1.";
    exit 1;
fi

if [ $# -eq 2 ]; then
    cd $2;
fi

PKG=${PWD##*/}
NEWVERSION=$1

LASTVERSION=$(ls -t | tail -1 | sed -e "s/${PKG}\.\(.*\)/\1/")

if [ -d "${PKG}.${NEWVERSION}" ]; then
    echo "${PKG}.${NEWVERSION} already exists. Exiting with 1."; exit 1
else
    cp -R ${PKG}.${LASTVERSION} ${PKG}.${NEWVERSION}
fi

URLFILE=${PKG}.${NEWVERSION}/url

URL=$(grep "archive" ${URLFILE} \
    | sed -e "s/\([ \t]*archive[ \t]*:[ \t]*\"\)\(.*\)${LASTVERSION}\([^\"]*.*\)\"/\2${NEWVERSION}\3/")
CHECKSUM=$(curl -s -L ${URL} | md5sum | cut -d\  -f 1)

echo -e "archive:\"${URL}\"\nchecksum:\"${CHECKSUM}\"" > ${URLFILE}

NB: Only works with archive / checksum format. See https://github.com/sagotch/makorel for a more complete solution.