chore: improve release pipeline and add Homebrew tap support

- Enable darwin/arm64 builds in GoReleaser (was incorrectly disabled)
- Add Homebrew formula generation via GoReleaser
- Clean up version injection (single source of truth in main.go)
- Update README with installation instructions
- Regenerate showcase SVGs

Author: matzehuels

.github/workflows/homebrew.yml

@@ -5,6 +5,7 @@ on:
     tags:
       - 'v*'
   workflow_dispatch:
+    # Manual trigger for re-running failed releases (requires existing tag)
 
 permissions:
   contents: write
@@ -29,3 +30,4 @@ jobs:
           args: release --clean
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          HOMEBREW_TAP_TOKEN: ${{ secrets.HOMEBREW_TAP_TOKEN }}

.github/workflows/release.yml

@@ -4,6 +4,7 @@
 *.dll
 *.so
 *.dylib
+/stacktower
 /bin/
 /dist/  # GoReleaser output
 
@@ -27,6 +28,9 @@ go.work.sum
 *~
 .DS_Store
 
+# Personal notes
+brew.md
+
 # bin
 bin/
 

.gitignore

@@ -23,10 +23,6 @@ builds:
     goarch:
       - amd64
       - arm64
-    # Don't build darwin/arm64 on Go < 1.16
-    ignore:
-      - goos: darwin
-        goarch: arm64
     ldflags:
       - -s -w
       - -X main.version={{.Version}}
@@ -35,7 +31,8 @@ builds:
 
 archives:
   - id: stacktower
-    format: tar.gz
+    formats:
+      - tar.gz
     name_template: >-
       {{ .ProjectName }}_
       {{- .Version }}_
@@ -46,7 +43,8 @@ archives:
       {{- if .Arm }}v{{ .Arm }}{{ end }}
     format_overrides:
       - goos: windows
-        format: zip
+        formats:
+          - zip
     files:
       - LICENSE
       - README.md
@@ -55,7 +53,7 @@ checksum:
   name_template: 'checksums.txt'
 
 snapshot:
-  name_template: "{{ incpatch .Version }}-next"
+  version_template: "{{ incpatch .Version }}-next"
 
 changelog:
   sort: asc
@@ -105,18 +103,17 @@ release:
   footer: |
     **Full Changelog**: https://github.com/matzehuels/stacktower/compare/{{ .PreviousTag }}...{{ .Tag }}
 
-# Homebrew tap (disabled until ready)
-# Uncomment and create homebrew-tap repo when ready for brew distribution
-# brews:
-#   - name: stacktower
-#     repository:
-#       owner: matzehuels
-#       name: homebrew-tap
-#     folder: Formula
-#     homepage: https://github.com/matzehuels/stacktower
-#     description: Visualize dependency graphs as elegant "stack tower" diagrams
-#     license: MIT
-#     test: |
-#       system "#{bin}/stacktower --version"
-#     install: |
-#       bin.install "stacktower"
+brews:
+  - name: stacktower
+    repository:
+      owner: matzehuels
+      name: homebrew-tap
+      token: "{{ .Env.HOMEBREW_TAP_TOKEN }}"
+    directory: Formula
+    homepage: https://github.com/matzehuels/stacktower
+    description: Visualize dependency graphs as elegant stacktower diagrams
+    license: Apache-2.0
+    test: |
+      system "#{bin}/stacktower", "--version"
+    install: |
+      bin.install "stacktower"