feat: enable tag_filter_pattern in config options (#72)

Closes #70

README.md

@@ -224,6 +224,8 @@ info:
   repository_url: https://github.com/git-chglog/git-chglog
 
 options:
+  tag_filter_pattern: '^v'
+
   commits:
     filters:
       Type:

cmd/git-chglog/config.go

@@ -50,14 +50,15 @@ type NoteOptions struct {
 
 // Options ...
 type Options struct {
-	Commits      CommitOptions      `yaml:"commits"`
-	CommitGroups CommitGroupOptions `yaml:"commit_groups"`
-	Header       PatternOptions     `yaml:"header"`
-	Issues       IssueOptions       `yaml:"issues"`
-	Refs         RefOptions         `yaml:"refs"`
-	Merges       PatternOptions     `yaml:"merges"`
-	Reverts      PatternOptions     `yaml:"reverts"`
-	Notes        NoteOptions        `yaml:"notes"`
+	TagFilterPattern string             `yaml:"tag_filter_pattern"`
+	Commits          CommitOptions      `yaml:"commits"`
+	CommitGroups     CommitGroupOptions `yaml:"commit_groups"`
+	Header           PatternOptions     `yaml:"header"`
+	Issues           IssueOptions       `yaml:"issues"`
+	Refs             RefOptions         `yaml:"refs"`
+	Merges           PatternOptions     `yaml:"merges"`
+	Reverts          PatternOptions     `yaml:"reverts"`
+	Notes            NoteOptions        `yaml:"notes"`
 }
 
 // Config ...
@@ -248,6 +249,10 @@ func (config *Config) Convert(ctx *CLIContext) *chglog.Config {
 	info := config.Info
 	opts := config.Options
 
+	if ctx.TagFilterPattern == "" {
+		ctx.TagFilterPattern = opts.TagFilterPattern
+	}
+
 	return &chglog.Config{
 		Bin:        config.Bin,
 		WorkingDir: ctx.WorkingDir,

cmd/git-chglog/config_test.go

@@ -41,3 +41,30 @@ func TestConfigNormalize(t *testing.T) {
 	assert.Nil(err)
 	assert.Equal(filepath.Join(cwd, "CHANGELOG.tpl.md"), config.Template)
 }
+
+func TestConfigConvert(t *testing.T) {
+	var patternInFile = "pattern in config"
+	var patternInArgs = "pattern in cli"
+	assert := assert.New(t)
+	// basic
+	config := &Config{
+		Info: Info{
+			RepositoryURL: "https://example.com/foo/bar/",
+		},
+		Options: Options{TagFilterPattern: patternInFile},
+	}
+	cli := &CLIContext{TagFilterPattern: patternInArgs}
+	cfg := config.Convert(cli)
+	assert.Equal(cfg.Options.TagFilterPattern, patternInArgs)
+
+	config = &Config{
+		Info: Info{
+			RepositoryURL: "https://example.com/foo/bar/",
+		},
+		Options: Options{TagFilterPattern: patternInFile},
+	}
+	cli = &CLIContext{}
+	cfg = config.Convert(cli)
+	assert.Equal(cfg.Options.TagFilterPattern, patternInFile)
+
+}