Stitch any CI into Tangled
configure buildkite
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-4
+35
.buildkite/hooks/pre-command
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.buildkite/hooks/pre-command
···
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#!/bin/sh
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#
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# Buildkite pre-command hook: install Determinate Nix on the agent
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# before each command step runs. We rely on Nix (with flakes) for our
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# build environment, so every fresh agent needs it bootstrapped.
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#
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# Determinate's installer enables flakes and `nix-command` by default
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# and is more reliable in CI than the upstream installer, so we don't
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# need to stage a custom nix.conf.
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set -eu
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# Install Nix without touching the agent's init system. The `?ci=buildkite`
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# query param is informational; it lets Determinate tag installer telemetry.
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curl --proto '=https' --tlsv1.2 -sSf -L \
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"https://install.determinate.systems/nix?ci=buildkite" \
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| sh -s -- install linux --no-confirm --init none
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# Start the Determinate daemon ourselves since we passed `--init none`.
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# Point the Nix client at the daemon for the rest of this shell.
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nohup /usr/local/bin/determinate-nixd daemon &
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export NIX_REMOTE=daemon
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# Wait for the daemon to become responsive before handing control back
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# to the command step.
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while ! determinate-nixd status >/dev/null 2>&1; do
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sleep 0.1
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done
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# Put `nix` on PATH for the command step. Buildkite sources hooks, so
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# this export propagates. With `--init none` we never edited any shell
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# profile, so we have to do it ourselves. The default profile holds the
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# `nix` binary; the per-user profile holds anything `nix profile install`
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# adds later.
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export PATH="/nix/var/nix/profiles/default/bin:$HOME/.nix-profile/bin:$PATH"
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.buildkite/pipeline.yml
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.buildkite/pipeline.yml
···
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# In-repo Buildkite pipeline. The Buildkite-side pipeline only needs
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# one step that does `buildkite-agent pipeline upload`; everything
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# real lives here.
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steps:
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- label: ":nix: format check"
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# `nix fmt` dispatches to the flake's `formatter` output (alejandra).
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# `--` forwards `--check` to alejandra, which exits non-zero on any
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# file that would be reformatted so the build fails instead of
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# silently rewriting files.
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command: nix fmt -- --check .
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- label: ":go: test"
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# Run the full Go test suite inside the flake's dev shell so the
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# toolchain (go, cgo deps for mattn/go-sqlite3) matches what the
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# package build uses. `nix develop -c` runs the given command in the
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# default devShell without dropping into an interactive shell.
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command: nix develop -c go test ./...
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.tangled/workflows/test.yml
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.tangled/workflows/test.yml
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-2
flake.nix
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-2
flake.nix
···
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flake-utils,
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...
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}:
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# Per-system outputs (packages, apps, devShells). nixosModules is
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# system-independent and is merged in below.
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# Per-system outputs (packages, apps, devShells). nixosModules is
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# system-independent and is merged in below.
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flake-utils.lib.eachDefaultSystem (
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system: let
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pkgs = nixpkgs.legacyPackages.${system};
···
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env.CGO_ENABLED = "1";
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};
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in {
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# `nix fmt` formats the tree with alejandra. CI pins this same
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# binary via `nix run nixpkgs#alejandra` for the format check.
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formatter = pkgs.alejandra;
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devShells.default = pkgs.mkShell {
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packages = [
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pkgs.go
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-2
nix/modules/tack.nix
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-2
nix/modules/tack.nix
···
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# NixOS module for the tack spindle.
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# NixOS module for the tack spindle.
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{
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config,
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lib,
···
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]
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++ optional cfg.dev "TACK_DEV=1"
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++ optional (cfg.buildkite.org != null)
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"TACK_BUILDKITE_ORG=${cfg.buildkite.org}";
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"TACK_BUILDKITE_ORG=${cfg.buildkite.org}";
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ExecStart = "${cfg.package}/bin/tack -addr ${cfg.listenAddr}";
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Restart = "always";