Open-CMSIS-Pack/cpackget

#!/bin/bash

echo "Preparing release of cpackget"

# Sanity check, no uncommited changes are allowed
changed=$(git diff-index --name-only HEAD -- || true)
if [ -n "$changed" ]
then
    echo "Uncommited changes found; cannot release like this:"
    echo "$changed"
    echo "Commit these changes first! Aborting"
    exit 1
fi

# Display current release version and ask for the next
current_version=`git describe`
echo "Current version is at: $current_version"
echo -n " Next release version: v"
read next_release_version

# Make sure version is going up
IFS=. read curr_major curr_mid curr_minor <<< ${current_version//-*/}
IFS=. read next_major next_mid next_minor <<< $next_release_version
diff_major=$(($next_major - $curr_major))
diff_mid=$(($next_mid - $curr_mid))
diff_minor=$(($next_minor - $curr_minor))
if [ $diff_major -lt 0 ] ||
   [ $diff_major -eq 0 -a $diff_mid -lt 0 ] ||
   [ $diff_major -eq 0 -a $diff_mid -eq 0 -a $diff_minor -le 0 ]
then
    echo "Versions should always go up: (next) $next_release_version <= $current_version (current)"
    echo "For more info, visit: https://semver.org/"
    exit -1
fi

# Prepend a "v" before version number
next_release_version=v${next_release_version}

# Make sure release version hasn't been used before
if git rev-parse --verify --quiet $next_release_version >/dev/null -o
   grep -q "^# $next_release_version" CHANGELOG.md
then
    echo "Version $next_release_version has already been released. Aborting"
    exit 1
fi

# Make sure to document changes
if ! grep -q "^# $next_release_version" CHANGELOG.md
then
    echo "Document the changes in CHANGELOG.md"
    editor CHANGELOG.md
fi
if ! grep -q "^# $next_release_version" CHANGELOG.md; then
    echo "Version $next_release_version is not documented in CHANGELOG.md"
    echo "Please do that before releasing. Aborting"
    exit 1
fi

# Commit changes to CHANGELOG, bump up the version and push
# tags so that github action can take care of the second
# part of the release, see .github/workflows/release.yml
git commit --message "New release: $next_release_version" CHANGELOG.md || true
git tag -s -m "cpackget release $next_release_version" "$next_release_version"
git push
git push --tags