feat(releaser): add git only as releaser, will create a new tag with version only

pkg/config/config.go

@@ -3,6 +3,7 @@ package config
 
 import (
 	"io/ioutil"
+	"os"
 
 	log "github.com/sirupsen/logrus"
 	"gopkg.in/yaml.v2"
@@ -50,6 +51,20 @@ type GitLabProvider struct {
 	AccessToken string
 }
 
+// GitProvider struct
+type GitProvider struct {
+	Email    string `yaml:"email"`
+	Username string `yaml:"user"`
+	Auth     string `yaml:"auth"`
+	SSH      bool   `yaml:"ssh"`
+}
+
+// Hooks struct
+type Hooks struct {
+	PreRelease  []string `yaml:"preRelease"`
+	PostRelease []string `yaml:"postRelease"`
+}
+
 // ReleaseConfig struct
 type ReleaseConfig struct {
 	CommitFormat   string            `yaml:"commitFormat"`
@@ -58,7 +73,9 @@ type ReleaseConfig struct {
 	Release        string            `yaml:"release,omitempty"`
 	GitHubProvider GitHubProvider    `yaml:"github,omitempty"`
 	GitLabProvider GitLabProvider    `yaml:"gitlab,omitempty"`
+	GitProvider    GitProvider       `yaml:"git,omitempty"`
 	Assets         []Asset           `yaml:"assets"`
+	Hooks          Hooks             `yaml:"hooks"`
 	ReleaseTitle   string            `yaml:"title"`
 	IsPreRelease   bool
 }
@@ -71,13 +88,31 @@ func Read(configPath string) (*ReleaseConfig, error) {
 		return &ReleaseConfig{}, err
 	}
 
-	var releaseConfig ReleaseConfig
-	err = yaml.Unmarshal(content, &releaseConfig)
+	log.Tracef("Found config %s", string(content))
+	releaseConfig := &ReleaseConfig{}
+	err = yaml.Unmarshal(content, releaseConfig)
 	if err != nil {
 		return &ReleaseConfig{}, err
 	}
 
-	log.Tracef("Found config %+v", releaseConfig)
+	org := *releaseConfig
 
-	return &releaseConfig, nil
+	releaseConfig.Hooks = Hooks{}
+
+	configWithoutHooks, err := yaml.Marshal(releaseConfig)
+	if err != nil {
+		return &ReleaseConfig{}, err
+	}
+	configWithoutHooks = []byte(os.ExpandEnv(string(configWithoutHooks)))
+	releaseConfigWithExpanedEnvs := &ReleaseConfig{}
+	err = yaml.Unmarshal(configWithoutHooks, releaseConfigWithExpanedEnvs)
+	if err != nil {
+		return &ReleaseConfig{}, err
+	}
+
+	releaseConfigWithExpanedEnvs.Hooks = org.Hooks
+
+	log.Tracef("Found config %+v", releaseConfigWithExpanedEnvs)
+
+	return releaseConfigWithExpanedEnvs, nil
 }