mirror of
https://github.com/roc-lang/roc.git
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Format & rename some Nix stuff; Remove custom .envrc use nix stuff in favor of stdlib
This commit is contained in:
Jared Ramirez
parent
8d9f324951
commit
966bb80cdc
5 changed files with 132 additions and 316 deletions
155
.envrc
155
.envrc
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@ -1,154 +1 @@
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# Load environment variables from `nix-shell` and export it out.
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#
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# Usage: use_nix [-s <nix-expression>] [-w <path>] [-w <path>] ...
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# -s nix-expression: The nix expression to use for building the shell environment.
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# -w path: watch a file for changes. It can be specified multiple times. The
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# shell specified with -s is automatically watched.
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#
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# If no nix-expression were given with -s, it will attempt to find and load
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# the shell using the following files in order: shell.nix and default.nix.
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#
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# Example:
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# - use_nix
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# - use_nix -s shell.nix -w .nixpkgs-version.json
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#
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# The dependencies pulled by nix-shell are added to Nix's garbage collector
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# roots, such that the environment remains persistent.
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#
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# Nix-shell is invoked only once per environment, and the output is cached for
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# better performance. If any of the watched files change, then the environment
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# is rebuilt.
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#
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# To remove old environments, and allow the GC to collect their dependencies:
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# rm -f .direnv
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#
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use_nix() {
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if ! validate_version; then
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echo "This .envrc requires direnv version 2.18.2 or above."
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exit 1
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fi
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# define all local variables
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local shell
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local files_to_watch=()
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local opt OPTARG OPTIND # define vars used by getopts locally
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while getopts ":n:s:w:" opt; do
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case "${opt}" in
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s)
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shell="${OPTARG}"
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files_to_watch=("${files_to_watch[@]}" "${shell}")
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;;
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w)
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files_to_watch=("${files_to_watch[@]}" "${OPTARG}")
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;;
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:)
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fail "Invalid option: $OPTARG requires an argument"
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;;
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\?)
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fail "Invalid option: $OPTARG"
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;;
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esac
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done
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shift $((OPTIND -1))
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if [[ -z "${shell}" ]]; then
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if [[ -f shell.nix ]]; then
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shell=shell.nix
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files_to_watch=("${files_to_watch[@]}" shell.nix)
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elif [[ -f default.nix ]]; then
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shell=default.nix
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files_to_watch=("${files_to_watch[@]}" default.nix)
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else
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fail "ERR: no shell was given"
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fi
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fi
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local f
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for f in "${files_to_watch[@]}"; do
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if ! [[ -f "${f}" ]]; then
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fail "cannot watch file ${f} because it does not exist"
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fi
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done
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# compute the hash of all the files that makes up the development environment
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local env_hash="$(hash_contents "${files_to_watch[@]}")"
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# define the paths
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local dir="$(direnv_layout_dir)"
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local wd="${dir}/wd-${env_hash}"
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local drv="${wd}/env.drv"
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local dump="${wd}/dump.env"
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# Generate the environment if we do not have one generated already.
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if [[ ! -f "${drv}" ]]; then
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mkdir -p "${wd}"
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log_status "use nix: deriving new environment"
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IN_NIX_SHELL=1 nix-instantiate --add-root "${drv}" --indirect "${shell}" > /dev/null
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nix-store -r $(nix-store --query --references "${drv}") --add-root "${wd}/dep" --indirect > /dev/null
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if [[ "${?}" -ne 0 ]] || [[ ! -f "${drv}" ]]; then
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rm -rf "${wd}"
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fail "use nix: was not able to derive the new environment. Please run 'direnv reload' to try again."
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fi
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log_status "use nix: updating cache"
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nix-shell "${drv}" --show-trace --run "$(join_args "$direnv" dump bash)" > "${dump}"
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if [[ "${?}" -ne 0 ]] || [[ ! -f "${dump}" ]] || ! grep -q IN_NIX_SHELL "${dump}"; then
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rm -rf "${wd}"
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fail "use nix: was not able to update the cache of the environment. Please run 'direnv reload' to try again."
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fi
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fi
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# evaluate the dump created by nix-shell earlier, but have to merge the PATH
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# with the current PATH
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# NOTE: we eval the dump here as opposed to direnv_load it because we don't
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# want to persist environment variables coming from the shell at the time of
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# the dump. See https://github.com/direnv/direnv/issues/405 for context.
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local path_backup="${PATH}"
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eval $(cat "${dump}")
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export PATH="${PATH}:${path_backup}"
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# cleanup the environment of variables that are not requried, or are causing issues.
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unset shellHook # when shellHook is present, then any nix-shell'd script will execute it!
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# watch all the files we were asked to watch for the environment
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for f in "${files_to_watch[@]}"; do
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watch_file "${f}"
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done
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}
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fail() {
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log_error "${@}"
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exit 1
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}
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hash_contents() {
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if has md5sum; then
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cat "${@}" | md5sum | cut -c -32
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elif has md5; then
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cat "${@}" | md5 -q
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fi
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}
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hash_file() {
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if has md5sum; then
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md5sum "${@}" | cut -c -32
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elif has md5; then
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md5 -q "${@}"
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fi
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}
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validate_version() {
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local version="$("${direnv}" version)"
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local major="$(echo "${version}" | cut -d. -f1)"
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local minor="$(echo "${version}" | cut -d. -f2)"
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local patch="$(echo "${version}" | cut -d. -f3)"
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if [[ "${major}" -gt 2 ]]; then return 0; fi
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if [[ "${major}" -eq 2 ]] && [[ "${minor}" -gt 18 ]]; then return 0; fi
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if [[ "${major}" -eq 2 ]] && [[ "${minor}" -eq 18 ]] && [[ "${patch}" -ge 2 ]]; then return 0; fi
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return 1
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}
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use_nix -s shell.nix
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use nix
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@ -466,8 +466,8 @@ fn link_macos(
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"-lc++",
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// "-lc++abi",
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// "-lunwind", // TODO will eventually need this, see https://github.com/rtfeldman/roc/pull/554#discussion_r496370840
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"-framework",
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"Security", // This "-framework Security" arg is needed for the `rand` crate in examples/cli
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// "-framework", // Uncomment this line & the following ro run the `rand` crate in examples/cli
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// "Security",
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// Output
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"-o",
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output_path.to_str().unwrap(), // app
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10
nix/zig.nix
10
nix/zig.nix
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@ -1,10 +1,10 @@
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{ pkgs, isMacOS, isAarch64 }:
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{ pkgs, isDarwin, isAarch64 }:
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if isMacOS then
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if isDarwin then
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let
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version = "0.7.1";
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osName =
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if isMacOS
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if isDarwin
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then "macos"
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else "linux";
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archName =
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@ -23,8 +23,8 @@ if isMacOS then
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name = "${archiveName}.tar.xz";
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url = "https://ziglang.org/download/${version}/${archiveName}.tar.xz";
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};
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phases = [ "installPhase" ];
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installPhase = ''
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phases = [ "unpackPhase" ];
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unpackPhase = ''
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mkdir -p $out/bin
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tar -xf $src
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cp ${archiveName}/zig $out/zig
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28
nix/zls.nix
28
nix/zls.nix
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@ -1,28 +0,0 @@
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{ pkgs, zig }:
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# As of 2020-10-25, building zls is not available on Nix. For some reason,
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# this hangs on `zig build`. I'll try to figure it our later.
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let
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rev = "e8c20351d85da8eb4bf22480045b994007284d69";
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in
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pkgs.stdenv.mkDerivation {
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pname = "zig-language-server";
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version = rev;
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src = pkgs.fetchgit {
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inherit rev;
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fetchSubmodules = true;
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url = "https://github.com/zigtools/zls.git";
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sha256 = "06g8gml1g0fmvcfysy93bd1hb64vjd2v12x3kgxz58kmk5z0168y";
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};
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phases = [ "buildPhase" "installPhase" ];
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buildInputs = [ zig ];
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buildPhase = ''
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zig build
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'';
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installPhase = ''
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mkdir -p $out/bin
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cp ./zig-cache/bin/zls $out/bin/zls
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chmod +x $out/bin/zls
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'';
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}
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65
shell.nix
65
shell.nix
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@ -1,13 +1,9 @@
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{}:
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let
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splitSystem = builtins.split "-" builtins.currentSystem;
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currentArch = builtins.elemAt splitSystem 0;
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currentOS = builtins.elemAt splitSystem 2;
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in
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with {
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# Look here for information about how pin version of nixpkgs
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# → https://nixos.wiki/wiki/FAQ/Pinning_Nixpkgs
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# TODO: We should probably use flakes at somepoint
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pkgs = import (
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builtins.fetchGit {
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# name = "nixpkgs-2021-04-23";
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@ -17,16 +13,12 @@ in
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}
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) {};
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isMacOS = currentOS == "darwin";
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isLinux = currentOS == "linux";
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currentArch = builtins.elemAt (builtins.split "-" builtins.currentSystem) 0;
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isAarch64 = currentArch == "aarch64";
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};
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with (pkgs);
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let
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darwin-inputs =
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if isMacOS then
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darwinInputs =
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with pkgs;
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lib.optionals stdenv.isDarwin (
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with pkgs.darwin.apple_sdk.frameworks; [
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AppKit
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CoreFoundation
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@ -36,12 +28,11 @@ in
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Metal
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Security
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]
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else
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[];
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);
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linux-inputs =
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if isLinux then
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[
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linuxInputs =
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with pkgs;
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lib.optionals stdenv.isLinux [
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valgrind
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vulkan-headers
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vulkan-loader
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@ -52,13 +43,17 @@ in
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xorg.libXrandr
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xorg.libXi
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xorg.libxcb
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]
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else
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[];
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];
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llvmPkgs = pkgs.llvmPackages_10;
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zig = import ./nix/zig.nix { inherit pkgs isMacOS isAarch64; };
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inputs = [
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zig = import ./nix/zig.nix {
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pkgs = pkgs;
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isDarwin = pkgs.stdenv.isDarwin;
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isAarch64 = isAarch64;
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};
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inputs = with pkgs;[
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# build libraries
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rustc
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cargo
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@ -71,6 +66,7 @@ in
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llvmPkgs.clang
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pkg-config
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zig
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# lib deps
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llvmPkgs.libcxx
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llvmPkgs.libcxxabi
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@ -80,21 +76,20 @@ in
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ncurses
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zlib
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libiconv
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# faster builds - see https://github.com/rtfeldman/roc/blob/trunk/BUILDING_FROM_SOURCE.md#use-lld-for-the-linker
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llvmPkgs.lld
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# dev tools
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# rust-analyzer
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# (import ./nix/zls.nix { inherit pkgs zig; })
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];
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in
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mkShell (
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in
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pkgs.mkShell
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{
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buildInputs = inputs ++ darwin-inputs ++ linux-inputs;
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buildInputs = inputs ++ darwinInputs ++ linuxInputs;
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# Additional Env vars
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LLVM_SYS_100_PREFIX = "${llvmPkgs.llvm}";
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LD_LIBRARY_PATH = stdenv.lib.makeLibraryPath
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LD_LIBRARY_PATH =
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with pkgs;
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lib.makeLibraryPath
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(
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[
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pkg-config
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@ -105,12 +100,14 @@ in
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libffi
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ncurses
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zlib
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] ++ linux-inputs
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]
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++ linuxInputs
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);
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# Aliases don't work cross shell, so we do this
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# Non Nix llvm installs names the bin llvm-as-${version}, so we
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# alias `llvm` to `llvm-as-${version}` here.
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# This the name of the file in nix/bin will need to be updated whenever llvm is updated
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shellHook = ''
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export PATH="$PATH:$PWD/nix/bin"
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'';
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}
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)
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