feat: configure releases and versioning

Author: zimbatm

.github/workflows/release.yml

@@ -0,0 +1,28 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+permissions:
+  contents: write
+
+jobs:
+  goreleaser:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Install Nix
+        uses: cachix/install-nix-action@v30
+        with:
+          github_access_token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Run GoReleaser
+        run: nix develop --command goreleaser release --clean
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.goreleaser.yaml

@@ -0,0 +1,54 @@
+# This is an example .goreleaser.yml file with some sensible defaults.
+# Make sure to check the documentation at https://goreleaser.com
+
+# The lines below are called `modelines`. See `:help modeline`
+# Feel free to remove those if you don't want/need to use them.
+# yaml-language-server: $schema=https://goreleaser.com/static/schema.json
+# vim: set ts=2 sw=2 tw=0 fo=cnqoj
+
+version: 2
+
+before:
+  hooks:
+    - go mod tidy
+
+builds:
+  - env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - darwin
+    goarch:
+      - amd64
+      - arm64
+    binary: nix-auth
+    ldflags:
+      - -s -w -X github.com/numtide/nix-auth/internal/version.Version={{.Version}} -X github.com/numtide/nix-auth/internal/version.Commit={{.Commit}} -X github.com/numtide/nix-auth/internal/version.Date={{.Date}}
+
+archives:
+  - # this name template makes the OS and Arch compatible with the results of `uname`.
+    name_template: >-
+      {{ .ProjectName }}_
+      {{- title .Os }}_
+      {{- if eq .Arch "amd64" }}x86_64
+      {{- else if eq .Arch "386" }}i386
+      {{- else }}{{ .Arch }}{{ end }}
+      {{- if .Arm }}v{{ .Arm }}{{ end }}
+
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - "^docs:"
+      - "^test:"
+      - "^chore:"
+      - "^ci:"
+      - "^Merge"
+
+checksum:
+  name_template: 'checksums.txt'
+
+snapshot:
+  version_template: "{{ incpatch .Version }}-next"
+
+# yaml-language-server: $schema=https://goreleaser.com/static/schema.json

cmd/version.go

@@ -0,0 +1,20 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/numtide/nix-auth/internal/version"
+	"github.com/spf13/cobra"
+)
+
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "Display version information",
+	Run: func(_ *cobra.Command, _ []string) {
+		fmt.Println(version.Full())
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(versionCmd)
+}

flake.nix

@@ -38,6 +38,7 @@
             go-tools
             golangci-lint
             gopls
+            goreleaser
           ];
         };
       });

internal/version/version.go

@@ -0,0 +1,29 @@
+// Package version provides version information for nix-auth.
+package version
+
+import "fmt"
+
+var (
+	// Version is the main version number that is being run at the moment.
+	Version = "dev"
+
+	// Commit is the git commit that was compiled. This will be filled in by the compiler.
+	Commit = "none"
+
+	// Date is the build date in RFC3339 format.
+	Date = "unknown"
+)
+
+// String returns the complete version string.
+func String() string {
+	if Version == "dev" {
+		return fmt.Sprintf("%s (commit: %s, built at: %s)", Version, Commit, Date)
+	}
+
+	return Version
+}
+
+// Full returns the full version information.
+func Full() string {
+	return fmt.Sprintf("nix-auth %s\ncommit: %s\nbuilt at: %s", Version, Commit, Date)
+}