#!/bin/bash

set -e -u

RELEASE_VERSION=$1
CURRENT_VERSION="$RELEASE_VERSION-SNAPSHOT"

# Would like to use `lein release` here, but we don't have a way to
# update the bash scripts or watch for boot slowdowns that way. Maybe
# try adding lein-shell?

if [ ! -x `which lein-stable` ]; then
    echo "Install a stable version of Leiningen as lein-stable."
    exit 1
fi

grep $RELEASE_VERSION NEWS.md || (echo "Add $RELEASE_VERSION to NEWS.md" && exit 1)

lein vcs assert-committed

for f in bin/lein bin/lein-pkg bin/lein-sdkman bin/lein.bat bin/lein.ps1 project.clj leiningen-core/project.clj; do
    sed -i s/$CURRENT_VERSION/$RELEASE_VERSION/ $f
done

rm -rf target classes leiningen-core/target leiningen-core/classes leiningen-core/lib
rm -rf $HOME/.lein/self-installs/leiningen-$RELEASE_VERSION-standalone.jar

LEIN_ROOT=$PWD

cd leiningen-core
lein-stable do clean, bootstrap
cd ..

bin/lein uberjar
RELEASE_JAR=$PWD/target/leiningen-$RELEASE_VERSION-standalone.jar
cp $RELEASE_JAR $HOME/.lein/self-installs

cp bin/lein /tmp/lein-$RELEASE_VERSION
cd /tmp

if [ ! -r test-project ]; then
    ./lein-$RELEASE_VERSION new test-project
fi

cd test-project

echo "Running a few invocations in order to check boot time..."

time ../lein-$RELEASE_VERSION run -m clojure.main/main -e nil
time ../lein-$RELEASE_VERSION run -m clojure.main/main -e nil
time ../lein-$RELEASE_VERSION run -m clojure.main/main -e nil

echo "Check that these are about the same boot times as with the last version."
echo "Run this in a project: time lein-stable run -m clojure.main/main -e nil"
echo "Proceeding here will publish the new version to the git repo."
echo "Are these acceptable times? (~3s) [Y\n]"
read CONTINUE
case "$CONTINUE" in
    y|Y|"")
        gpg -ab $RELEASE_JAR;;
    *)
        echo "Aborted."
        exit 1;;
esac

cd $LEIN_ROOT

git commit -a -m "Release $RELEASE_VERSION"
git tag -s $RELEASE_VERSION -m "Release $RELEASE_VERSION"
git push && git push --tags && git push origin master:stable

echo "Upload $RELEASE_JAR and $RELEASE_JAR.asc to GitHub releases for $RELEASE_VERSION."
echo "Copy this version's section of NEWS.md to the GitHub release description."

rm -rf target leiningen-core/target
echo "Test self-install. If things are good, run this:"
echo "$ lein deploy clojars && cd leiningen-core && lein deploy clojars"
echo "And announce it on the mailing list."