added brew dependencies support

config/config.go

@@ -11,6 +11,7 @@ type Homebrew struct {
 	Repo         string
 	Folder       string
 	Caveats      string
+	Dependencies []string
 }
 
 // Build contains the build configuration section

goreleaser.example.yml

@@ -81,3 +81,14 @@ brew:
   # Caveats for the user of your binary.
   # Default is empty.
   caveats: "How to use this binary"
+
+  # Dependencies of your formula.
+  # For more info, check https://github.com/Homebrew/brew/blob/master/docs/Formula-Cookbook.md
+  dependencies:
+    - pkg-config
+    - jpeg
+    - boost
+    - readline
+    - gtk+
+    - x11
+

pipeline/brew/brew.go

@@ -25,6 +25,12 @@ const formulae = `class {{ .Name }} < Formula
   version "{{ .Tag }}"
   sha256 "{{ .SHA256 }}"
 
+  {{- if .Dependencies }}
+  {{ range $index, $element := .Dependencies }}
+  depends_on: {{ . }}
+  {{- end }}
+  {{- end }}
+
   def install
     bin.install "{{ .BinaryName }}"
   end
@@ -39,7 +45,17 @@ end
 `
 
 type templateData struct {
-	Name, Desc, Homepage, Repo, Tag, BinaryName, Caveats, File, Format, SHA256 string
+	Name         string
+	Desc         string
+	Homepage     string
+	Repo         string
+	Tag          string
+	BinaryName   string
+	Caveats      string
+	File         string
+	Format       string
+	SHA256       string
+	Dependencies []string
 }
 
 // Pipe for brew deployment
@@ -145,6 +161,7 @@ func dataFor(ctx *context.Context, client *github.Client) (result templateData,
 		File:         file,
 		Format:       ctx.Config.Archive.Format,
 		SHA256:       sum,
+		Dependencies: ctx.Config.Brew.Dependencies,
 	}, err
 }
 

pipeline/brew/brew_test.go

@@ -38,19 +38,21 @@ func assertDefaultTemplateData(t *testing.T, formulae string) {
 	assert.Contains(formulae, "sha256 \"1633f61598ab0791e213135923624eb342196b3494909c91899bcd0560f84c68\"")
 	assert.Contains(formulae, "version \"v0.1.3\"")
 	assert.Contains(formulae, "bin.install \"test\"")
-
 }
 
 func TestFullFormulae(t *testing.T) {
 	assert := assert.New(t)
 	data := defaultTemplateData
 	data.Caveats = "Here are some caveats"
+	data.Dependencies = []string{"gtk", "git"}
 	out, err := doBuildFormulae(data)
 	assert.NoError(err)
 	formulae := out.String()
 	assertDefaultTemplateData(t, formulae)
 	assert.Contains(formulae, "def caveats")
 	assert.Contains(formulae, "Here are some caveats")
+	assert.Contains(formulae, "depends_on: gtk")
+	assert.Contains(formulae, "depends_on: git")
 }
 
 func TestFormulaeNoCaveats(t *testing.T) {
@@ -60,4 +62,5 @@ func TestFormulaeNoCaveats(t *testing.T) {
 	formulae := out.String()
 	assertDefaultTemplateData(t, formulae)
 	assert.NotContains(formulae, "def caveats")
+	assert.NotContains(formulae, "depends_on")
 }