feat: add commit-notes action

issue: #7

cmd/git-sv/handlers.go

@@ -55,14 +55,13 @@ func commitLogHandler(git sv.Git, semverProcessor sv.SemVerCommitsProcessor) fun
 		rangeFlag := c.String("r")
 		startFlag := c.String("s")
 		endFlag := c.String("e")
-		if tagFlag != "" && (rangeFlag != "" || startFlag != "" || endFlag != "") {
+		if tagFlag != "" && (rangeFlag != string(sv.TagRange) || startFlag != "" || endFlag != "") {
 			return fmt.Errorf("cannot define tag flag with range, start or end flags")
 		}
 
 		if tagFlag != "" {
 			commits, err = getTagCommits(git, tagFlag)
 		} else {
-			// commits, err = git.Log(sv.NewLogRange(sv.TagRange, git.Describe(), ""))
 			r, rerr := logRange(git, rangeFlag, startFlag, endFlag)
 			if rerr != nil {
 				return rerr
@@ -94,7 +93,7 @@ func getTagCommits(git sv.Git, tag string) ([]sv.GitCommitLog, error) {
 
 func logRange(git sv.Git, rangeFlag, startFlag, endFlag string) (sv.LogRange, error) {
 	switch rangeFlag {
-	case "", string(sv.TagRange):
+	case string(sv.TagRange):
 		return sv.NewLogRange(sv.TagRange, str(startFlag, git.Describe()), endFlag), nil
 	case string(sv.DateRange):
 		return sv.NewLogRange(sv.DateRange, startFlag, endFlag), nil
@@ -105,6 +104,31 @@ func logRange(git sv.Git, rangeFlag, startFlag, endFlag string) (sv.LogRange, er
 	}
 }
 
+func commitNotesHandler(git sv.Git, rnProcessor sv.ReleaseNoteProcessor, outputFormatter sv.OutputFormatter) func(c *cli.Context) error {
+	return func(c *cli.Context) error {
+		var date time.Time
+
+		rangeFlag := c.String("r")
+		lr, err := logRange(git, rangeFlag, c.String("s"), c.String("e"))
+		if err != nil {
+			return err
+		}
+
+		commits, err := git.Log(lr)
+		if err != nil {
+			return fmt.Errorf("error getting git log from range: %s, message: %v", rangeFlag, err)
+		}
+
+		if len(commits) > 0 {
+			date, _ = time.Parse("2006-01-02", commits[0].Date)
+		}
+
+		releasenote := rnProcessor.Create(nil, date, commits)
+		fmt.Println(outputFormatter.FormatReleaseNote(releasenote))
+		return nil
+	}
+}
+
 func releaseNotesHandler(git sv.Git, semverProcessor sv.SemVerCommitsProcessor, rnProcessor sv.ReleaseNoteProcessor, outputFormatter sv.OutputFormatter) func(c *cli.Context) error {
 	return func(c *cli.Context) error {
 		var commits []sv.GitCommitLog
@@ -122,7 +146,7 @@ func releaseNotesHandler(git sv.Git, semverProcessor sv.SemVerCommitsProcessor,
 			return err
 		}
 
-		releasenote := rnProcessor.Create(rnVersion, date, commits)
+		releasenote := rnProcessor.Create(&rnVersion, date, commits)
 		fmt.Println(outputFormatter.FormatReleaseNote(releasenote))
 		return nil
 	}
@@ -310,7 +334,7 @@ func changelogHandler(git sv.Git, semverProcessor sv.SemVerCommitsProcessor, rnP
 			if err != nil {
 				return fmt.Errorf("error parsing version: %s from describe, message: %v", tag.Name, err)
 			}
-			releaseNotes = append(releaseNotes, rnProcessor.Create(currentVer, tag.Date, commits))
+			releaseNotes = append(releaseNotes, rnProcessor.Create(&currentVer, tag.Date, commits))
 		}
 
 		fmt.Println(formatter.FormatChangelog(releaseNotes))

cmd/git-sv/main.go

@@ -42,11 +42,24 @@ func main() {
 		{
 			Name:        "commit-log",
 			Aliases:     []string{"cl"},
-			Usage:   "list all commit logs since last version or according with range as jsons",
+			Usage:       "list all commit logs according to range as jsons",
+			Description: "when flag range is \"tag\" and start is empty, last tag created will be used instead",
 			Action:      commitLogHandler(git, semverProcessor),
 			Flags: []cli.Flag{
 				&cli.StringFlag{Name: "t", Aliases: []string{"tag"}, Usage: "get commit log from a specific tag"},
-				&cli.StringFlag{Name: "r", Aliases: []string{"range"}, Usage: "type of range of commits, use: tag, date or hash"},
+				&cli.StringFlag{Name: "r", Aliases: []string{"range"}, Usage: "type of range of commits, use: tag, date or hash", Value: string(sv.TagRange)},
+				&cli.StringFlag{Name: "s", Aliases: []string{"start"}, Usage: "start range"},
+				&cli.StringFlag{Name: "e", Aliases: []string{"end"}, Usage: "end range"},
+			},
+		},
+		{
+			Name:        "commit-notes",
+			Aliases:     []string{"cn"},
+			Usage:       "create a release notes according to range",
+			Description: "when flag range is \"tag\" and start is empty, last tag created will be used instead",
+			Action:      commitNotesHandler(git, releasenotesProcessor, outputFormatter),
+			Flags: []cli.Flag{
+				&cli.StringFlag{Name: "r", Aliases: []string{"range"}, Usage: "type of range of commits, use: tag, date or hash", Required: true},
 				&cli.StringFlag{Name: "s", Aliases: []string{"start"}, Usage: "start range"},
 				&cli.StringFlag{Name: "e", Aliases: []string{"end"}, Usage: "end range"},
 			},

sv/formatter.go

@@ -40,7 +40,7 @@ const (
 {{- end}}
 {{- end}}`
 
-	rnTemplate = `## v{{.Version}}{{if .Date}} ({{.Date}}){{end}}
+	rnTemplate = `## {{if .Version}}v{{.Version}}{{end}}{{if and .Date .Version}} ({{end}}{{.Date}}{{if and .Version .Date}}){{end}}
 {{- template "rnSection" .Sections.feat}}
 {{- template "rnSection" .Sections.fix}}
 {{- template "rnSectionBreakingChanges" .BreakingChanges}}
@@ -93,8 +93,13 @@ func releaseNoteVariables(releasenote ReleaseNote) releaseNoteTemplateVariables
 	if !releasenote.Date.IsZero() {
 		date = releasenote.Date.Format("2006-01-02")
 	}
+
+	var version = ""
+	if releasenote.Version != nil {
+		version = fmt.Sprintf("%d.%d.%d", releasenote.Version.Major(), releasenote.Version.Minor(), releasenote.Version.Patch())
+	}
 	return releaseNoteTemplateVariables{
-		Version:         fmt.Sprintf("%d.%d.%d", releasenote.Version.Major(), releasenote.Version.Minor(), releasenote.Version.Patch()),
+		Version:         version,
 		Date:            date,
 		Sections:        releasenote.Sections,
 		BreakingChanges: releasenote.BreakingChanges,

sv/formatter_test.go

@@ -11,6 +11,8 @@ var dateChangelog = `## v1.0.0 (2020-05-01)
 `
 var emptyDateChangelog = `## v1.0.0
 `
+var emptyVersionChangelog = `## 2020-05-01
+`
 
 func TestOutputFormatterImpl_FormatReleaseNote(t *testing.T) {
 	date, _ := time.Parse("2006-01-02", "2020-05-01")
@@ -20,8 +22,9 @@ func TestOutputFormatterImpl_FormatReleaseNote(t *testing.T) {
 		input ReleaseNote
 		want  string
 	}{
-		{"", emptyReleaseNote("1.0.0", date.Truncate(time.Minute)), dateChangelog},
+		{"with date", emptyReleaseNote("1.0.0", date.Truncate(time.Minute)), dateChangelog},
-		{"", emptyReleaseNote("1.0.0", time.Time{}.Truncate(time.Minute)), emptyDateChangelog},
+		{"without date", emptyReleaseNote("1.0.0", time.Time{}.Truncate(time.Minute)), emptyDateChangelog},
+		{"without version", emptyReleaseNote("", date.Truncate(time.Minute)), emptyVersionChangelog},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
@@ -33,8 +36,12 @@ func TestOutputFormatterImpl_FormatReleaseNote(t *testing.T) {
 }
 
 func emptyReleaseNote(version string, date time.Time) ReleaseNote {
+	var v *semver.Version
+	if version != "" {
+		v = semver.MustParse(version)
+	}
 	return ReleaseNote{
-		Version: *semver.MustParse(version),
+		Version: v,
 		Date:    date,
 	}
 }

sv/helpers_test.go

@@ -19,7 +19,7 @@ func commitlog(t string, metadata map[string]string) GitCommitLog {
 	}
 }
 
-func releaseNote(version semver.Version, date time.Time, sections map[string]ReleaseNoteSection, breakingChanges []string) ReleaseNote {
+func releaseNote(version *semver.Version, date time.Time, sections map[string]ReleaseNoteSection, breakingChanges []string) ReleaseNote {
 	return ReleaseNote{
 		Version:         version,
 		Date:            date.Truncate(time.Minute),

sv/releasenotes.go

@@ -8,7 +8,7 @@ import (
 
 // ReleaseNoteProcessor release note processor interface.
 type ReleaseNoteProcessor interface {
-	Create(version semver.Version, date time.Time, commits []GitCommitLog) ReleaseNote
+	Create(version *semver.Version, date time.Time, commits []GitCommitLog) ReleaseNote
 }
 
 // ReleaseNoteProcessorImpl release note based on commit log.
@@ -22,7 +22,7 @@ func NewReleaseNoteProcessor(tags map[string]string) *ReleaseNoteProcessorImpl {
 }
 
 // Create create a release note based on commits.
-func (p ReleaseNoteProcessorImpl) Create(version semver.Version, date time.Time, commits []GitCommitLog) ReleaseNote {
+func (p ReleaseNoteProcessorImpl) Create(version *semver.Version, date time.Time, commits []GitCommitLog) ReleaseNote {
 	sections := make(map[string]ReleaseNoteSection)
 	var breakingChanges []string
 	for _, commit := range commits {
@@ -44,7 +44,7 @@ func (p ReleaseNoteProcessorImpl) Create(version semver.Version, date time.Time,
 
 // ReleaseNote release note.
 type ReleaseNote struct {
-	Version         semver.Version
+	Version         *semver.Version
 	Date            time.Time
 	Sections        map[string]ReleaseNoteSection
 	BreakingChanges []string

sv/releasenotes_test.go

@@ -13,31 +13,31 @@ func TestReleaseNoteProcessorImpl_Create(t *testing.T) {
 
 	tests := []struct {
 		name    string
-		version semver.Version
+		version *semver.Version
 		date    time.Time
 		commits []GitCommitLog
 		want    ReleaseNote
 	}{
 		{
 			name:    "mapped tag",
-			version: *semver.MustParse("1.0.0"),
+			version: semver.MustParse("1.0.0"),
 			date:    date,
 			commits: []GitCommitLog{commitlog("t1", map[string]string{})},
-			want:    releaseNote(*semver.MustParse("1.0.0"), date, map[string]ReleaseNoteSection{"t1": newReleaseNoteSection("Tag 1", []GitCommitLog{commitlog("t1", map[string]string{})})}, nil),
+			want:    releaseNote(semver.MustParse("1.0.0"), date, map[string]ReleaseNoteSection{"t1": newReleaseNoteSection("Tag 1", []GitCommitLog{commitlog("t1", map[string]string{})})}, nil),
 		},
 		{
 			name:    "unmapped tag",
-			version: *semver.MustParse("1.0.0"),
+			version: semver.MustParse("1.0.0"),
 			date:    date,
 			commits: []GitCommitLog{commitlog("t1", map[string]string{}), commitlog("unmapped", map[string]string{})},
-			want:    releaseNote(*semver.MustParse("1.0.0"), date, map[string]ReleaseNoteSection{"t1": newReleaseNoteSection("Tag 1", []GitCommitLog{commitlog("t1", map[string]string{})})}, nil),
+			want:    releaseNote(semver.MustParse("1.0.0"), date, map[string]ReleaseNoteSection{"t1": newReleaseNoteSection("Tag 1", []GitCommitLog{commitlog("t1", map[string]string{})})}, nil),
 		},
 		{
 			name:    "breaking changes tag",
-			version: *semver.MustParse("1.0.0"),
+			version: semver.MustParse("1.0.0"),
 			date:    date,
 			commits: []GitCommitLog{commitlog("t1", map[string]string{}), commitlog("unmapped", map[string]string{"breakingchange": "breaks"})},
-			want:    releaseNote(*semver.MustParse("1.0.0"), date, map[string]ReleaseNoteSection{"t1": newReleaseNoteSection("Tag 1", []GitCommitLog{commitlog("t1", map[string]string{})})}, []string{"breaks"}),
+			want:    releaseNote(semver.MustParse("1.0.0"), date, map[string]ReleaseNoteSection{"t1": newReleaseNoteSection("Tag 1", []GitCommitLog{commitlog("t1", map[string]string{})})}, []string{"breaks"}),
 		},
 	}
 	for _, tt := range tests {