mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-25 19:15:34 +00:00
119 lines
5.0 KiB
Nix
119 lines
5.0 KiB
Nix
# flake.nix describes a Nix source repository that provides
|
|
# development builds of Tailscale and the fork of the Go compiler
|
|
# toolchain that Tailscale maintains. It also provides a development
|
|
# environment for working on tailscale, for use with "nix develop".
|
|
#
|
|
# For more information about this and why this file is useful, see:
|
|
# https://nixos.wiki/wiki/Flakes
|
|
#
|
|
# Also look into direnv: https://direnv.net/, this can make it so that you can
|
|
# automatically get your environment set up when you change folders into the
|
|
# project.
|
|
#
|
|
# WARNING: currently, the packages provided by this flake are brittle,
|
|
# and importing this flake into your own Nix configs is likely to
|
|
# leave you with broken builds periodically.
|
|
#
|
|
# The issue is that building Tailscale binaries uses the buildGoModule
|
|
# helper from nixpkgs. This helper demands to know the content hash of
|
|
# all of the Go dependencies of this repo, in the form of a Nix SRI
|
|
# hash. This hash isn't automatically kept in sync with changes made
|
|
# to go.mod yet, and so every time we update go.mod while hacking on
|
|
# Tailscale, this flake ends up with a broken build due to hash
|
|
# mismatches.
|
|
#
|
|
# Right now, this flake is intended for use by Tailscale developers,
|
|
# who are aware of this mismatch and willing to live with it. At some
|
|
# point, we'll add automation to keep the hashes more in sync, at
|
|
# which point this caveat should go away.
|
|
#
|
|
# See https://github.com/tailscale/tailscale/issues/6845 for tracking
|
|
# how to fix this mismatch.
|
|
{
|
|
inputs = {
|
|
nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
|
|
flake-utils.url = "github:numtide/flake-utils";
|
|
# Used by shell.nix as a compat shim.
|
|
flake-compat = {
|
|
url = "github:edolstra/flake-compat";
|
|
flake = false;
|
|
};
|
|
};
|
|
|
|
outputs = { self, nixpkgs, flake-utils, flake-compat }: let
|
|
# Grab a helper func out of the Nix language libraries. Annoyingly
|
|
# these are only accessible through legacyPackages right now,
|
|
# which forces us to indirect through a platform-specific
|
|
# path. The x86_64-linux in here doesn't really matter, since all
|
|
# we're grabbing is a pure Nix string manipulation function that
|
|
# doesn't build any software.
|
|
fileContents = nixpkgs.legacyPackages.x86_64-linux.lib.fileContents;
|
|
|
|
# tailscaleRev is the git commit at which this flake was imported,
|
|
# or the empty string when building from a local checkout of the
|
|
# tailscale repo.
|
|
tailscaleRev = if builtins.hasAttr "rev" self then self.rev else "";
|
|
# tailscale takes a nixpkgs package set, and builds Tailscale from
|
|
# the same commit as this flake. IOW, it provides "tailscale built
|
|
# from HEAD", where HEAD is "whatever commit you imported the
|
|
# flake at".
|
|
#
|
|
# This is currently unfortunately brittle, because we have to
|
|
# specify vendorSha256, and that sha changes any time we alter
|
|
# go.mod. We don't want to force a nix dependency on everyone
|
|
# hacking on Tailscale, so this flake is likely to have broken
|
|
# builds periodically until someone comes through and manually
|
|
# fixes them up. I sure wish there was a way to express "please
|
|
# just trust the local go.mod, vendorSha256 has no benefit here",
|
|
# but alas.
|
|
#
|
|
# So really, this flake is for tailscale devs to dogfood with, if
|
|
# you're an end user you should be prepared for this flake to not
|
|
# build periodically.
|
|
tailscale = pkgs: pkgs.buildGo120Module rec {
|
|
name = "tailscale";
|
|
|
|
src = ./.;
|
|
vendorSha256 = fileContents ./go.mod.sri;
|
|
nativeBuildInputs = pkgs.lib.optionals pkgs.stdenv.isLinux [ pkgs.makeWrapper pkgs.git ];
|
|
ldflags = ["-X tailscale.com/version.GitCommit=${tailscaleRev}"];
|
|
CGO_ENABLED = 0;
|
|
subPackages = [ "cmd/tailscale" "cmd/tailscaled" ];
|
|
doCheck = false;
|
|
postInstall = pkgs.lib.optionalString pkgs.stdenv.isLinux ''
|
|
wrapProgram $out/bin/tailscaled --prefix PATH : ${pkgs.lib.makeBinPath [ pkgs.iproute2 pkgs.iptables pkgs.getent pkgs.shadow ]}
|
|
wrapProgram $out/bin/tailscale --suffix PATH : ${pkgs.lib.makeBinPath [ pkgs.procps ]}
|
|
|
|
sed -i -e "s#/usr/sbin#$out/bin#" -e "/^EnvironmentFile/d" ./cmd/tailscaled/tailscaled.service
|
|
install -D -m0444 -t $out/lib/systemd/system ./cmd/tailscaled/tailscaled.service
|
|
'';
|
|
};
|
|
|
|
# This whole blob makes the tailscale package available for all
|
|
# OS/CPU combos that nix supports, as well as a dev shell so that
|
|
# "nix develop" and "nix-shell" give you a dev env.
|
|
flakeForSystem = nixpkgs: system: let
|
|
pkgs = nixpkgs.legacyPackages.${system};
|
|
ts = tailscale pkgs;
|
|
in {
|
|
packages = {
|
|
tailscale = ts;
|
|
};
|
|
devShell = pkgs.mkShell {
|
|
packages = with pkgs; [
|
|
curl
|
|
git
|
|
gopls
|
|
gotools
|
|
graphviz
|
|
perl
|
|
go_1_20
|
|
yarn
|
|
];
|
|
};
|
|
};
|
|
in
|
|
flake-utils.lib.eachDefaultSystem (system: flakeForSystem nixpkgs system);
|
|
}
|
|
# nix-direnv cache busting line: sha256-hWfdcvm2ief313JMgzDIispAnwi+D1iWsm0UHWOomxg=
|