allow to overwrite the snap name

README.md

@@ -470,6 +470,9 @@ You can read more about it in the [snapcraft docs](https://snapcraft.io/docs/).
 # .goreleaser.yml
 snapcraft:
 
+  # The name of the snap. This is optional and defaults to the project name.
+  name: drumroll
+
   # Single-line elevator pitch for your amazing snap.
   # 79 char long at most.
   summary: Software to create fast and easy drum rolls.

config/config.go

@@ -131,6 +131,7 @@ type SnapcraftAppMetadata struct {
 
 // Snapcraft config
 type Snapcraft struct {
+	Name        string                          `yaml:",omitempty"`
 	Summary     string                          `yaml:",omitempty"`
 	Description string                          `yaml:",omitempty"`
 	Grade       string                          `yaml:",omitempty"`

pipeline/snapcraft/snapcraft.go

@@ -104,7 +104,6 @@ func create(ctx *context.Context, folder, arch string, binaries []context.Binary
 	log.WithField("file", file).Info("creating snap metadata")
 
 	var metadata = &SnapcraftMetadata{
-		Name:          ctx.Config.ProjectName,
 		Version:       ctx.Version,
 		Summary:       ctx.Config.Snapcraft.Summary,
 		Description:   ctx.Config.Snapcraft.Description,
@@ -113,6 +112,11 @@ func create(ctx *context.Context, folder, arch string, binaries []context.Binary
 		Architectures: []string{arch},
 		Apps:          make(map[string]AppMetadata),
 	}
+	if ctx.Config.Snapcraft.Name != "" {
+		metadata.Name = ctx.Config.Snapcraft.Name
+	} else {
+		metadata.Name = ctx.Config.ProjectName
+	}
 
 	for _, binary := range binaries {
 		log.WithField("path", binary.Path).
@@ -141,7 +145,7 @@ func create(ctx *context.Context, folder, arch string, binaries []context.Binary
 
 	snap := filepath.Join(
 		ctx.Config.Dist,
-		metadata.Name+"_"+metadata.Version+"_"+arch+".snap",
+		ctx.Config.ProjectName+"_"+metadata.Version+"_"+arch+".snap",
 	)
 	cmd := exec.Command("snapcraft", "snap", primeDir, "--output", snap)
 	if out, err = cmd.CombinedOutput(); err != nil {

pipeline/snapcraft/snapcraft_test.go

@@ -67,6 +67,41 @@ func TestRunPipe(t *testing.T) {
 	assert.NoError(Pipe{}.Run(ctx))
 }
 
+func TestRunPipeWithName(t *testing.T) {
+	var assert = assert.New(t)
+	folder, err := ioutil.TempDir("", "archivetest")
+	assert.NoError(err)
+	var dist = filepath.Join(folder, "dist")
+	assert.NoError(os.Mkdir(dist, 0755))
+	assert.NoError(err)
+	var ctx = &context.Context{
+		Version: "testversion",
+		Config: config.Project{
+			ProjectName: "testprojectname",
+			Dist:        dist,
+			Snapcraft: config.Snapcraft{
+				Name:        "testsnapname",
+				Summary:     "test summary",
+				Description: "test description",
+			},
+		},
+	}
+	for _, plat := range []string{"linuxamd64", "linux386", "darwinamd64", "linuxarm64", "linuxarmhf"} {
+		var folder = "testprojectname_" + plat
+		assert.NoError(os.Mkdir(filepath.Join(dist, folder), 0755))
+		var binPath = filepath.Join(dist, folder, "testprojectname")
+		_, err = os.Create(binPath)
+		ctx.AddBinary(plat, folder, "testprojectname", binPath)
+	}
+	assert.NoError(Pipe{}.Run(ctx))
+	yamlFile, err := ioutil.ReadFile(filepath.Join(dist, "testprojectname_linuxamd64", "prime", "meta", "snap.yaml"))
+	assert.NoError(err)
+	var snapcraftMetadata SnapcraftMetadata
+	err = yaml.Unmarshal(yamlFile, &snapcraftMetadata)
+	assert.NoError(err)
+	assert.Equal(snapcraftMetadata.Name, "testsnapname")
+}
+
 func TestRunPipeWithPlugsAndDaemon(t *testing.T) {
 	var assert = assert.New(t)
 	folder, err := ioutil.TempDir("", "archivetest")