feat: add range and date at commit log action

related to #7

cmd/git-sv/handlers.go

@@ -36,7 +36,7 @@ func nextVersionHandler(git sv.Git, semverProcessor sv.SemVerCommitsProcessor) f
 			return fmt.Errorf("error parsing version: %s from describe, message: %v", describe, err)
 		}
 
-		commits, err := git.Log(describe, "")
+		commits, err := git.Log(sv.NewLogRange(sv.TagRange, describe, ""))
 		if err != nil {
 			return fmt.Errorf("error getting git log, message: %v", err)
 		}
@@ -51,11 +51,23 @@ func commitLogHandler(git sv.Git, semverProcessor sv.SemVerCommitsProcessor) fun
 	return func(c *cli.Context) error {
 		var commits []sv.GitCommitLog
 		var err error
+		tagFlag := c.String("t")
+		rangeFlag := c.String("r")
+		startFlag := c.String("s")
+		endFlag := c.String("e")
+		if tagFlag != "" && (rangeFlag != "" || startFlag != "" || endFlag != "") {
+			return fmt.Errorf("cannot define tag flag with range, start or end flags")
+		}
 
-		if tag := c.String("t"); tag != "" {
+		if tagFlag != "" {
-			commits, err = getTagCommits(git, tag)
+			commits, err = getTagCommits(git, tagFlag)
 		} else {
-			commits, err = git.Log(git.Describe(), "")
+			// commits, err = git.Log(sv.NewLogRange(sv.TagRange, git.Describe(), ""))
+			r, rerr := logRange(git, rangeFlag, startFlag, endFlag)
+			if rerr != nil {
+				return rerr
+			}
+			commits, err = git.Log(r)
 		}
 		if err != nil {
 			return fmt.Errorf("error getting git log, message: %v", err)
@@ -77,7 +89,20 @@ func getTagCommits(git sv.Git, tag string) ([]sv.GitCommitLog, error) {
 	if err != nil {
 		return nil, err
 	}
-	return git.Log(prev, tag)
+	return git.Log(sv.NewLogRange(sv.TagRange, prev, tag))
+}
+
+func logRange(git sv.Git, rangeFlag, startFlag, endFlag string) (sv.LogRange, error) {
+	switch rangeFlag {
+	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
+	case string(sv.HashRange):
+		return sv.NewLogRange(sv.HashRange, startFlag, endFlag), nil
+	default:
+		return sv.LogRange{}, fmt.Errorf("invalid range: %s, expected: %s, %s or %s", rangeFlag, sv.TagRange, sv.DateRange, sv.HashRange)
+	}
 }
 
 func releaseNotesHandler(git sv.Git, semverProcessor sv.SemVerCommitsProcessor, rnProcessor sv.ReleaseNoteProcessor, outputFormatter sv.OutputFormatter) func(c *cli.Context) error {
@@ -114,7 +139,7 @@ func getTagVersionInfo(git sv.Git, semverProcessor sv.SemVerCommitsProcessor, ta
 		return semver.Version{}, time.Time{}, nil, fmt.Errorf("error listing tags, message: %v", err)
 	}
 
-	commits, err := git.Log(previousTag, tag)
+	commits, err := git.Log(sv.NewLogRange(sv.TagRange, previousTag, tag))
 	if err != nil {
 		return semver.Version{}, time.Time{}, nil, fmt.Errorf("error getting git log from tag: %s, message: %v", tag, err)
 	}
@@ -157,7 +182,7 @@ func getNextVersionInfo(git sv.Git, semverProcessor sv.SemVerCommitsProcessor) (
 		return semver.Version{}, time.Time{}, nil, fmt.Errorf("error parsing version: %s from describe, message: %v", describe, err)
 	}
 
-	commits, err := git.Log(describe, "")
+	commits, err := git.Log(sv.NewLogRange(sv.TagRange, describe, ""))
 	if err != nil {
 		return semver.Version{}, time.Time{}, nil, fmt.Errorf("error getting git log, message: %v", err)
 	}
@@ -174,7 +199,7 @@ func tagHandler(git sv.Git, semverProcessor sv.SemVerCommitsProcessor) func(c *c
 			return fmt.Errorf("error parsing version: %s from describe, message: %v", describe, err)
 		}
 
-		commits, err := git.Log(describe, "")
+		commits, err := git.Log(sv.NewLogRange(sv.TagRange, describe, ""))
 		if err != nil {
 			return fmt.Errorf("error getting git log, message: %v", err)
 		}
@@ -276,7 +301,7 @@ func changelogHandler(git sv.Git, semverProcessor sv.SemVerCommitsProcessor, rnP
 				previousTag = tags[i+1].Name
 			}
 
-			commits, err := git.Log(previousTag, tag.Name)
+			commits, err := git.Log(sv.NewLogRange(sv.TagRange, previousTag, tag.Name))
 			if err != nil {
 				return fmt.Errorf("error getting git log from tag: %s, message: %v", tag.Name, err)
 			}
@@ -348,3 +373,10 @@ func appendOnFile(message, filepath string) error {
 	_, err = f.WriteString(message)
 	return err
 }
+
+func str(value, defaultValue string) string {
+	if value != "" {
+		return value
+	}
+	return defaultValue
+}

cmd/git-sv/main.go

@@ -44,7 +44,12 @@ func main() {
 			Aliases: []string{"cl"},
 			Usage:   "list all commit logs since last version as jsons",
 			Action:  commitLogHandler(git, semverProcessor),
-			Flags:   []cli.Flag{&cli.StringFlag{Name: "t", Aliases: []string{"tag"}, Usage: "get commit log from tag"}},
+			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: "s", Aliases: []string{"start"}, Usage: "start range"},
+				&cli.StringFlag{Name: "e", Aliases: []string{"end"}, Usage: "end range"},
+			},
 		},
 		{
 			Name:    "release-notes",

sv/git.go

@@ -26,7 +26,7 @@ const (
 // Git commands
 type Git interface {
 	Describe() string
-	Log(initialTag, endTag string) ([]GitCommitLog, error)
+	Log(lr LogRange) ([]GitCommitLog, error)
 	Commit(header, body, footer string) error
 	Tag(version semver.Version) error
 	Tags() ([]GitTag, error)
@@ -35,6 +35,7 @@ type Git interface {
 
 // GitCommitLog description of a single commit log
 type GitCommitLog struct {
+	Date     string            `json:"date,omitempty"`
 	Hash     string            `json:"hash,omitempty"`
 	Type     string            `json:"type,omitempty"`
 	Scope    string            `json:"scope,omitempty"`
@@ -49,6 +50,28 @@ type GitTag struct {
 	Date time.Time
 }
 
+// LogRangeType type of log range
+type LogRangeType string
+
+// constants for log range type
+const (
+	TagRange  LogRangeType = "tag"
+	DateRange              = "date"
+	HashRange              = "hash"
+)
+
+// LogRange git log range
+type LogRange struct {
+	rangeType LogRangeType
+	start     string
+	end       string
+}
+
+// NewLogRange LogRange constructor
+func NewLogRange(t LogRangeType, start, end string) LogRange {
+	return LogRange{rangeType: t, start: start, end: end}
+}
+
 // GitImpl git command implementation
 type GitImpl struct {
 	messageMetadata map[string][]string
@@ -74,22 +97,27 @@ func (GitImpl) Describe() string {
 }
 
 // Log return git log
-func (g GitImpl) Log(initialTag, endTag string) ([]GitCommitLog, error) {
+func (g GitImpl) Log(lr LogRange) ([]GitCommitLog, error) {
-	format := "--pretty=format:\"%h" + logSeparator + "%s" + logSeparator + "%b" + endLine + "\""
+	format := "--pretty=format:\"%ad" + logSeparator + "%h" + logSeparator + "%s" + logSeparator + "%b" + endLine + "\""
-	var cmd *exec.Cmd
+	params := []string{"log", "--date=short", format}
-	if initialTag == "" && endTag == "" {
+
-		cmd = exec.Command("git", "log", format)
+	if lr.start != "" || lr.end != "" {
-	} else if endTag == "" {
+		switch lr.rangeType {
-		cmd = exec.Command("git", "log", initialTag+"..HEAD", format)
+		case DateRange:
-	} else if initialTag == "" {
+			params = append(params, "--since", lr.start, "--until", addDay(lr.end))
-		cmd = exec.Command("git", "log", endTag, format)
+		default:
+			if lr.start == "" {
+				params = append(params, lr.end)
 			} else {
-		cmd = exec.Command("git", "log", initialTag+".."+endTag, format)
+				params = append(params, lr.start+".."+str(lr.end, "HEAD"))
+			}
+		}
 	}
 
+	cmd := exec.Command("git", params...)
 	out, err := cmd.CombinedOutput()
 	if err != nil {
-		return nil, err
+		return nil, combinedOutputErr(err, out)
 	}
 	return parseLogOutput(g.messageMetadata, string(out)), nil
 }
@@ -121,7 +149,7 @@ func (g GitImpl) Tags() ([]GitTag, error) {
 	cmd := exec.Command("git", "tag", "-l", "--format", "%(taggerdate:iso8601)#%(refname:short)")
 	out, err := cmd.CombinedOutput()
 	if err != nil {
-		return nil, err
+		return nil, combinedOutputErr(err, out)
 	}
 	return parseTagsOutput(string(out))
 }
@@ -163,12 +191,12 @@ func parseLogOutput(messageMetadata map[string][]string, log string) []GitCommit
 
 func parseCommitLog(messageMetadata map[string][]string, commit string) GitCommitLog {
 	content := strings.Split(strings.Trim(commit, "\""), logSeparator)
-	commitType, scope, subject := parseCommitLogMessage(content[1])
+	commitType, scope, subject := parseCommitLogMessage(content[2])
 
 	metadata := make(map[string]string)
 	for key, prefixes := range messageMetadata {
 		for _, prefix := range prefixes {
-			if tagValue := extractTag(prefix, content[2]); tagValue != "" {
+			if tagValue := extractTag(prefix, content[3]); tagValue != "" {
 				metadata[key] = tagValue
 				break
 			}
@@ -176,11 +204,12 @@ func parseCommitLog(messageMetadata map[string][]string, commit string) GitCommi
 	}
 
 	return GitCommitLog{
-		Hash:     content[0],
+		Date:     content[0],
+		Hash:     content[1],
 		Type:     commitType,
 		Scope:    scope,
 		Subject:  subject,
-		Body:     content[2],
+		Body:     content[3],
 		Metadata: metadata,
 	}
 }
@@ -222,3 +251,28 @@ func splitAt(b []byte) func(data []byte, atEOF bool) (advance int, token []byte,
 		return 0, nil, nil
 	}
 }
+
+func addDay(value string) string {
+	if value == "" {
+		return value
+	}
+
+	t, err := time.Parse("2006-01-02", value)
+	if err != nil { // keep original value if is not date format
+		return value
+	}
+
+	return t.AddDate(0, 0, 1).Format("2006-01-02")
+}
+
+func str(value, defaultValue string) string {
+	if value != "" {
+		return value
+	}
+	return defaultValue
+}
+
+func combinedOutputErr(err error, out []byte) error {
+	msg := strings.Split(string(out), "\n")
+	return fmt.Errorf("%v - %s", err, msg[0])
+}