102 lines
2.3 KiB
Nix
102 lines
2.3 KiB
Nix
{ pkgs, lib, config, ... }:
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let
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flakesPath = config.nix-wrapper.flakesPath;
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nix-wrapper =
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if flakesPath == "" then
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throw "'nix-wrapper.flakesPath' cannot be empty"
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else
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pkgs.writeShellScriptBin "nix-wrapper" ''
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URL=`git config --get remote.origin.url`
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GITHOST=`echo $URL | sed -e s/.*@// | sed -e s/:.*//`
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GITPATH=`echo $URL | sed -e s/.*:// | sed -e s/.git$//`
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FLAKE_PATH="${flakesPath}/$GITHOST/$GITPATH"
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usage() {
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cat << EOF
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Usage:
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nix-wrapper [options]
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Options:
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-c create a flake.nix for the current path
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-e edit the flake.nix for the current path
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-a <attribute> target a specific attribute
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EOF
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}
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create() {
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if [ -d "$FLAKE_PATH" ]; then
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echo "flake.nix already exist at $FLAKE_PATH"
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exit 1
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fi
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PWD=$(pwd)
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echo "Creating flake.nix in '$FLAKE_PATH' using '$PWD' as source path"
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mkdir -p "$FLAKE_PATH"
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FLAKE="$FLAKE_PATH"/flake.nix
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cp ${./flake-template.nix} "$FLAKE"
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chmod 700 "$FLAKE"
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sed -i -e "s|./SRC_PATH|$PWD|" "$FLAKE"
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$EDITOR "$FLAKE"
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}
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edit() {
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if [ ! -d "$FLAKE_PATH" ]; then
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echo "no flake.nix exist for '$FLAKE_PATH'"
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exit 1
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fi
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$EDITOR "$FLAKE_PATH/flake.nix"
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}
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[ "$#" -eq 0 ] && usage && exit 0
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ATTR=""
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while getopts "cea:" opt; do
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case "$opt" in
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c)
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create
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exit 0 ;;
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e)
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edit
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exit 0 ;;
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a)
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ATTR="$OPTARG" ;;
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esac
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done
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shift "$((OPTIND-1))"
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if [ ! -d "$FLAKE_PATH" ]; then
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echo "no flake.nix exist for '$FLAKE_PATH'"
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exit 1
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fi
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[ -n "$ATTR" ] && FLAKE_PATH="$FLAKE_PATH#$ATTR"
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nix $@ "$FLAKE_PATH"
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'';
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in
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{
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options = {
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nix-wrapper = {
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flakesPath = lib.mkOption {
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description = "path to where all flake.nix reside";
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type = lib.types.str;
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default = "";
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};
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};
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};
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config = {
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environment = {
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shellAliases = {
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nw = "${nix-wrapper}/bin/nix-wrapper";
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};
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systemPackages = [ nix-wrapper ];
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};
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};
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}
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