dotfiles/home/programs/nvim/update-plugins.sh
2022-12-16 21:51:35 +01:00

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#!/usr/bin/env nix-shell
#!nix-shell update-shell.nix -i bash
set -eEuo pipefail
current_command='none'
trap 'last_command=$current_command; current_command=$BASH_COMMAND' DEBUG
trap 'code=$?; if [ "$code" -ne "0" ]; then echo "\"${last_command}\" command ended with exit code $code."; fi' EXIT
script_dir="$(dirname "$(realpath "$0")")"
plugins="${script_dir}/plugins.yaml"
nix_new_file="${script_dir}/plugins_new.nix"
nix_file="${script_dir}/plugins.nix"
plugins_json="$(dasel -r yaml -w json . <"$plugins")"
readarray -t plugin_array <<<"$(echo "$plugins_json" | jq -c '.[]')"
rm -f "$nix_new_file"
echo '# This file has been auto-generated' >"$nix_new_file"
echo '{ pkgs, ... }:' >>"$nix_new_file"
echo "rec {" >>"$nix_new_file"
for plugin in "${plugin_array[@]}"; do
raw_src="$(echo "$plugin" | dasel -r json -w - '.src')"
owner="$(echo "$raw_src" | awk -F'/' '{ print $(NF-1) }')"
repo="$(echo "$raw_src" | awk -F'/' '{ print $(NF) }')"
name="$(echo "$repo" | tr [.] '-')"
echo "Updating ${owner}/${repo} ..."
if [[ "$raw_src" = http* ]]; then
clone_src="$raw_src"
else
clone_src="https://github.com/${owner}/${repo}.git"
fi
nix_prefetch_flags="--quiet"
fetch_submodules="$(echo "$plugin" | jq -r '.fetchSubmodules // empty')"
if [ "$fetch_submodules" == "true" ]; then
nix_prefetch_flags+=" --fetch-submodules"
fi
rev="$(echo "$plugin" | jq -r '.rev // empty')"
if [ -n "$rev" ]; then
nix_prefetch_flags+=" --rev $rev"
fi
branch="$(echo "$plugin" | jq -r '.branch // empty')"
if [ -n "$branch" ]; then
nix_prefetch_flags+=" --branch-name $branch"
fi
src_json="$(nix-prefetch-git $nix_prefetch_flags "$clone_src")"
src="{
owner = \"${owner}\";
repo = \"${repo}\";
rev = \"$(echo "$src_json" | dasel -r json -w - '.rev')\";
sha256 = \"$(echo "$src_json" | dasel -r json -w - '.sha256')\";
fetchSubmodules = $(echo "$src_json" | dasel -r json -w - '.fetchSubmodules');
}"
commit_date="$(echo "$src_json" | dasel -r json -w - '.date')"
version="$(date -d "$commit_date" "+%Y-%m-%d")"
case "$clone_src" in
https://github.com*)
fetcher="pkgs.fetchFromGitHub"
;;
https://git.sr.ht*)
fetcher="pkgs.fetchFromSourcehut"
;;
*)
echo "Unsupported URL: $clone_src"
exit 1
;;
esac
case "$name" in
nvim-treesitter)
echo "${name} = pkgs.vimPlugins.nvim-treesitter.overrideAttrs (_: {" >>"$nix_new_file"
close_block="});"
;;
*)
{
echo "${name} = pkgs.vimUtils.buildVimPluginFrom2Nix {"
echo "pname = \"${repo}\";"
} >>"$nix_new_file"
close_block="};"
;;
esac
{
echo "version = \"${version}\";"
echo "src = ${fetcher} ${src};"
} >>"$nix_new_file"
build_inputs="$(echo "$plugin" | jq -r '.nativeBuildInputs // empty' | jq -r @sh)"
if [ -n "$build_inputs" ]; then
{
echo -n "nativeBuildInputs = with pkgs; ["
echo -n "$build_inputs" | tr -d "'"
echo '];'
} >>"$nix_new_file"
fi
build_phase="$(echo "$plugin" | jq -r '.buildPhase // empty')"
if [ -n "$build_phase" ]; then
printf "buildPhase = ''\n%s\n'';\n" "$build_phase" >>"$nix_new_file"
fi
echo "$close_block" >>"$nix_new_file"
done
echo "}" >>"$nix_new_file"
nixpkgs-fmt "$nix_new_file"
if test -f "$nix_file"; then
set +eo pipefail
difft "$nix_file" "$nix_new_file"
set -eo pipefail
mv "$nix_new_file" "$nix_file"
else
mv "$nix_new_file" "$nix_file"
set +eo pipefail
bat --paging=never "$nix_file"
set -eo pipefail
fi