#!/usr/bin/env bash

set -euo pipefail

app="cargo-watch"
mainbranch="8.x"
upstream_rx="watchexec/"

curbranch=$(git rev-parse --abbrev-ref HEAD)
if [[ "$curbranch" != "$mainbranch" ]]; then
	echo "Current branch is not $mainbranch, abort!"
	exit 1
fi

gitstatus=$(git status --untracked-files=no --porcelain)
if [[ ! -z "$gitstatus" ]]; then
	echo "Uncommited files and changes, abort!"
	exit 2
fi

upstream=$(git remote -v | grep -i "$upstream_rx" -m1 | awk '{print $1}')
echo "Upstream remote discovered as: $upstream"

echo "Pulling from upstream"
git pull --rebase --autostash $upstream $mainbranch

echo "Fetching tags from upstream"
git fetch --tags "$upstream"

extver=$(grep -P '^version =' Cargo.toml | head -n1 | cut -d'"' -f2)
echo "(Version from Cargo.toml: $extver)"

newver="$1"

if [[ "$newver" == "$extver" ]]; then
	echo "New and existing versions are the same, abort!"
	exit 3
fi

date=$(date +%Y-%m-%d)
echo "Next version to be $newver ($date), creating..."

sed -E -i "s/^version = \"$extver\"/version = \"$newver\"/" Cargo.toml
sed -E -i "s/^version: \"?$extver\"?/version: \"$newver\"/1" CITATION.cff
sed -E -i "s/^date-released: .+$/date-released: $date/1" CITATION.cff

cargo check

git commit -am "$newver"
git tag -sam "$newver" "v$newver"

echo "Pushing to upstream"
git push --follow-tags $upstream $mainbranch