build: Upgrade to GoReleaser Pro. (#467)

This commit updates our build to use GoReleaser Pro. Building tighter
integration with GoReleaser should allow us to release to more
platforms. In future changes, I hope to use GoReleaser to take over a
lot of the build steps that are currently in Make and shell scripts.

.github/workflows/main.yml

@@ -147,13 +147,16 @@ jobs:
         uses: actions/download-artifact@v3
         with:
           name: release-artifacts
+          path: build
 
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v3
         with:
-          version: v1.7.0
+          distribution: goreleaser-pro
+          version: v1.12.3
           args: release
         env:
+          GORELEASER_KEY: ${{ secrets.GORELEASER_KEY }}
           GITHUB_TOKEN: ${{ secrets.TIDBYT_GITHUB_TOKEN }}
           DISCORD_WEBHOOK_ID: ${{ secrets.DISCORD_WEBHOOK_ID }}
           DISCORD_WEBHOOK_TOKEN: ${{ secrets.DISCORD_WEBHOOK_TOKEN }}

.goreleaser.yml

@@ -1,23 +1,22 @@
 dist: out
 
-builds:
-  - dir: .goreleaser
-
-    goarch:
-      - amd64
-      - arm64
-
-    goos:
-      - darwin
-      - linux
-      - windows
+before:
+  hooks:
+    - scripts/set-executable.sh
 
-    ignore:
-      - goos: windows
-        goarch: arm64
-
-    hooks:
-      post: ./.goreleaser/fetch-artifacts.sh
+builds:
+  - builder: prebuilt
+    binary: pixlet
+
+    targets:
+      - darwin_amd64
+      - darwin_arm64
+      - linux_amd64
+      - linux_arm64
+      - windows_amd64
+
+    prebuilt:
+      path: build/{{ .Os }}_{{ .Arch }}/pixlet{{ .Ext }}
 
 checksum:
   name_template: "checksums.txt"

scripts/set-executable.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+set -euo pipefail
+
+for dist in "darwin_amd64" "linux_amd64" "darwin_arm64" "linux_arm64"; do
+    chmod +x "build/$dist/pixlet"
+done