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dotfiles/programs/nvim/update-plugins.sh

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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.txt"
nix_new_file="${script_dir}/plugins_new.nix"
nix_file="${script_dir}/plugins.nix"
github_auth="$(cat "${script_dir}/github.auth")"
if [ -z "$github_auth" ]; then
echo "Please supply GitHub API credentials"
exit 1
fi
rm -f "$nix_new_file"
echo '# This file has been auto-generated' >"$nix_new_file"
echo '{ pkgs, ... }:' >>"$nix_new_file"
echo "{" >>"$nix_new_file"
while IFS='' read -r LINE || [ -n "${LINE}" ]; do
owner="$(echo "$LINE" | cut -d'/' -f1)"
repo="$(echo "$LINE" | cut -d'/' -f2)"
echo "Updating ${owner}/${repo} ..."
build="$(echo "$LINE" | cut -d'/' -f3)"
name="$(echo "$repo" | tr [.] '-')"
src="$(nix-prefetch-github --nix --no-fetch-submodules "$owner" "$repo" 2>/dev/null | tail -n +4)"
rev="$(echo "$src" | grep rev | cut -d '"' -f 2)"
commit_info="$(curl -u "$github_auth" --silent "https://api.github.com/repos/${owner}/${repo}/commits/${rev}")"
commit_date="$(echo "$commit_info" | jq -r '.commit.committer.date')"
if [[ "$commit_date" == "null" ]]; then
commit_date="$(echo "$commit_info" | jq -r '.commit.author.date')"
fi
version="$(date -d "$commit_date" "+%s")"
echo "${name} = pkgs.vimUtils.buildVimPluginFrom2Nix {" >>"$nix_new_file"
echo "pname = \"${repo}\";" >>"$nix_new_file"
echo "version = \"${version}\";" >>"$nix_new_file"
echo "src = ${src};" >>"$nix_new_file"
if [ -n "$build" ]; then
echo "buildPhase = \"${build}\";" >>"$nix_new_file"
fi
echo "meta.homepage = \"https://github.com/${owner}/${repo}\";" >>"$nix_new_file"
echo '};' >>"$nix_new_file"
done <"$plugins"
echo "}" >>"$nix_new_file"
nixpkgs-fmt "$nix_new_file"
if test -f "$nix_file"; then
set +eo pipefail
diff -U 2 "$nix_file" "$nix_new_file" | bat --paging=never -ldiff
set -eo pipefail
mv "$nix_new_file" "$nix_file"
else
mv "$nix_new_file" "$nix_file"
set +eo pipefail
bat --paging=never "$nix_file"
set -eo pipefail
fi