feat(release): add an option to specify a custom prefix for the version tag

internal/releaser/git/git.go

@@ -67,7 +67,12 @@ func (g *Client) GetCompareURL(oldVersion, newVersion string) string {
 // CreateRelease creates release on remote
 func (g *Client) CreateRelease(releaseVersion *shared.ReleaseVersion, generatedChangelog *shared.GeneratedChangelog, _ *assets.Set) error {
 
-	tag := "v" + releaseVersion.Next.Version.String()
+	tagPrefix := config.DefaultTagPrefix
+	if g.config.TagPrefix != nil{
+		tagPrefix = *g.config.TagPrefix
+	}
+	tag := tagPrefix + releaseVersion.Next.Version.String()
+
 	g.log.Infof("create release with version %s", tag)
 
 	head, err := g.git.Repository.Head()

internal/releaser/github/github.go

@@ -90,7 +90,11 @@ func (g *Client) CreateRelease(releaseVersion *shared.ReleaseVersion, generatedC
 // CreateRelease creates release on remote
 func (g *Client) makeRelease(releaseVersion *shared.ReleaseVersion, generatedChangelog *shared.GeneratedChangelog) error {
 
-	tag := "v" + releaseVersion.Next.Version.String()
+	tagPrefix := config.DefaultTagPrefix
+	if g.config.TagPrefix != nil{
+		tagPrefix = *g.config.TagPrefix
+	}
+	tag := tagPrefix + releaseVersion.Next.Version.String()
 	g.log.Debugf("create release with version %s", tag)
 
 	prerelease := releaseVersion.Next.Version.Prerelease() != ""

internal/releaser/gitlab/gitlab.go

@@ -98,7 +98,11 @@ func (g *Client) CreateRelease(releaseVersion *shared.ReleaseVersion, generatedC
 // CreateRelease creates release on remote
 func (g *Client) makeRelease(releaseVersion *shared.ReleaseVersion, generatedChangelog *shared.GeneratedChangelog) error {
 
-	tag := "v" + releaseVersion.Next.Version.String()
+	tagPrefix := config.DefaultTagPrefix
+	if g.config.TagPrefix != nil{
+		tagPrefix = *g.config.TagPrefix
+	}
+	tag := tagPrefix + releaseVersion.Next.Version.String()
 	g.Release = tag
 	g.log.Infof("create release with version %s", tag)
 	url := fmt.Sprintf("%s/projects/%s/releases", g.apiURL, util.PathEscape(g.config.Repo))

pkg/config/config.go

@@ -9,6 +9,10 @@ import (
 	"gopkg.in/yaml.v2"
 )
 
+const (
+	DefaultTagPrefix = "v"
+)
+
 // ChangelogConfig struct
 type ChangelogConfig struct {
 	PrintAll      bool            `yaml:"printAll,omitempty"`
@@ -44,6 +48,7 @@ type GitHubProvider struct {
 	User        string `yaml:"user"`
 	CustomURL   string `yaml:"customUrl,omitempty"`
 	AccessToken string
+	TagPrefix   *string `yaml:"tagPrefix,omitempty"`
 }
 
 // GitLabProvider struct
@@ -51,6 +56,7 @@ type GitLabProvider struct {
 	Repo        string `yaml:"repo"`
 	CustomURL   string `yaml:"customUrl,omitempty"`
 	AccessToken string
+	TagPrefix   *string `yaml:"tagPrefix,omitempty"`
 }
 
 // GitProvider struct
@@ -59,6 +65,7 @@ type GitProvider struct {
 	Username string `yaml:"user"`
 	Auth     string `yaml:"auth"`
 	SSH      bool   `yaml:"ssh"`
+	TagPrefix   *string `yaml:"tagPrefix,omitempty"`
 }
 
 // Hooks struct