build.sh

#!/usr/bin/env bash

set -eux -o errtrace

build_timestamp="$(date +'%a %b %d %T %Z %Y')"

git clone 'https://github.com/Kethku/neovide.git'
git clone 'https://github.com/chrisbouchard/neovide-nightly.git'

pushd neovide

    # The result here should be similar to parsing `git describe --tags HEAD`,
    # except we don't have to worry about string parsing. The results of `git
    # describe` are ambiguous if the tag name contains any dashes.

    main_tag=$(git describe --abbrev=0 --tags HEAD)
    main_commits=$(git rev-list --count "$main_tag..HEAD")
    main_hash=$(git rev-parse --short HEAD)

    # If the tag does contain any dashes, we need to remove them because RPM
    # uses dash to separate the version and release.
    safe_main_tag="${main_tag//-/.}"

    # Note that we insert a "g" before the hash, just like `git describe` does.
    # This is for backwards compatibility with our older versioning scheme that
    # did use `git describe`.
    version="$safe_main_tag~dev.$main_commits.g$main_hash"

    git archive \
        --prefix="neovide-$version/" \
        --format=tar.gz \
        --output='../neovide.tar.gz' \
        HEAD

popd

pushd neovide-nightly

    # We're not tagging in ths project, so we'll just count the total number of
    # commits as the revision.
    release="$(git rev-list --count HEAD)"

    # Copy the RPM spec out.
    cp neovide.spec ../

popd

# Create a companion spec file with some build-related macros.
cat >build-macros.inc <<EOF
%global build_release $release
%global build_timestamp $build_timestamp
%global build_version $version
EOF