build neovim in container. supports docker/podman and arch/ubuntu

build_neovim.sh

#!/bin/bash
set -e
SRCDIR="${HOME}/github/neovim"
VERSION_ID=latest
. /etc/os-release

if command -v podman ;then
  PODMAN=$(command -v podman)
  DOCKERFILE="Containerfile"
fi

if command -v docker ;then
  PODMAN=$(command -v docker)
  DOCKERFILE="Dockerfile"
fi

if [ -z "$PODMAN" ] ; then
  echo podman/docker not found
  exit 1
fi

OS_IMAGE="ubuntu"
if [ "$ID" = "arch" ] ; then
  OS_IMAGE="archlinux"
fi

if [ ! -d "$SRCDIR" ] ; then
  git clone https://github.com/neovim/neovim $SRCDIR
fi

cd $SRCDIR
git fetch --all 
git pull

rm -f make-n-pack.sh
cat <<'END' > make-n-pack.sh
make distclean
make -j6
# make -j4 CMAKE_BUILD_TYPE=RelWithDebInfo
rm -f neovim-build.tgz
make install
tar -C /usr/local/ -zcf neovim-build.tgz .
END

rm -f $DOCKERFILE
cat <<'END' > $DOCKERFILE
ARG OS_IMAGE="ubuntu" 
ARG OS_VERSION="20.04"

FROM docker.io/library/$OS_IMAGE:$OS_VERSION
ARG DEBIAN_FRONTEND="noninteractive" 
ARG TZ="America/Detroit"
RUN . /etc/os-release && if [ "$ID" = "ubuntu" ] ; then apt-get update \
 && apt-get install -y \
 ninja-build gettext libtool \
 libtool-bin autoconf automake \
 cmake g++ pkg-config unzip curl \
 doxygen ; fi

RUN . /etc/os-release && if [ "$ID" = "arch" ] ; then \
 pacman -Sy --noconfirm base-devel cmake unzip ninja tree-sitter curl ; fi

WORKDIR /src
CMD [ "sh", "make-n-pack.sh" ]
END


$PODMAN build --no-cache --build-arg OS_VERSION=${VERSION_ID} \
  --build-arg OS_IMAGE=${OS_IMAGE} -t buildneovim .

rm -f neovim-build.tgz
$PODMAN run --rm -it -v $PWD:/src buildneovim
sudo tar -C /usr/local/ -zxvf neovim-build.tgz