It basically works, but has problems with the correct order

changelog/generate.go

@@ -2,7 +2,6 @@ package changelog
 
 import (
 	"context"
-	"fmt"
 	"github.com/prodyna/changelog-json/changelog/output"
 	"github.com/shurcooL/githubv4"
 	"golang.org/x/oauth2"
@@ -37,12 +36,7 @@ func New(config Config) (*ChangelogGenerator, error) {
 func (clg *ChangelogGenerator) Generate(ctx context.Context) (changelog *output.Changelog, err error) {
 	slog.Info("Generating changelog", "repositories", clg.config.Repositories, "organization", clg.config.Organization)
 	changelog = &output.Changelog{
-		Releases: &[]output.Release{
-			{
-				Tag:        "0.0.0",
-				Components: &[]output.Component{},
-			},
-		},
+		Releases: &[]output.Release{},
 	}
 	src := oauth2.StaticTokenSource(
 		&oauth2.Token{AccessToken: clg.config.GitHubToken},
@@ -97,17 +91,10 @@ func (clg *ChangelogGenerator) Generate(ctx context.Context) (changelog *output.
 				Component:   repository,
 				Description: release.Description,
 			}
-			slog.Info("Adding entry", "tag", entry.Tag, "name", entry.Name, "component", entry.Component, "description", entry.Description)
+			slog.Info("Adding entry", "tag", entry.Tag, "name", entry.Name, "component", entry.Component, "description.len", len(entry.Description))
 			changelog.AddEntry(entry)
 		}
 	}
 
-	output, err := changelog.RenderJSON()
-	if err != nil {
-		slog.Error("unable to render changelog", "error", err)
-		return nil, err
-	}
-	fmt.Printf("%s", output)
-
 	return changelog, nil
 }

changelog/output/format.go

@@ -2,71 +2,110 @@ package output
 
 import (
 	"encoding/json"
-	"github.com/coreos/go-semver/semver"
+	"github.com/Masterminds/semver/v3"
+	"log/slog"
+	"slices"
 )
 
 type Entry struct {
 	Tag         string
 	Name        string
 	Component   string
 	Description string
+	Date        string
 }
 
 type Component struct {
 	Name        string `json:"name"`
+	Title       string `json:"title"`
 	Description string `json:"description"`
 }
 
 type Release struct {
 	Tag        string       `json:"tag"`
+	Date       string       `json:"date"`
 	Components *[]Component `json:"components"`
 }
 
 type Changelog struct {
 	Releases *[]Release `json:"releases"`
 }
 
-func (c *Changelog) AddEntry(entry Entry) {
+func (c *Changelog) AddEntry(entry Entry) error {
 	if c.Releases == nil {
 		c.Releases = &[]Release{}
 	}
 
 	// create a new release and insert it into the changelog in the right order
 	if len(*c.Releases) == 0 {
 		// no releaes, create it anyways
+		slog.Info("Inserting first release", "entry", entry)
 		*c.Releases = append(*c.Releases, Release{
 			Tag:        entry.Tag,
+			Date:       entry.Date,
 			Components: &[]Component{}})
 	} else {
-		// find the right place to insert the release
+		// check if this release exist already
+		found := false
 		for _, r := range *c.Releases {
 			if r.Tag == entry.Tag {
-				// release already exists, break here
+				found = true
+				slog.Info("Release already exists", "tag", entry.Tag)
 				break
 			}
-			v0 := semver.New(r.Tag)
-			v1 := semver.New(entry.Tag)
-			if v0.LessThan(*v1) {
-				// add release before the current release
+		}
+
+		if !found {
+			// find the right place to insert the release
+			added := false
+			for i, r := range *c.Releases {
+				v0, err := semver.NewVersion(r.Tag)
+				if err != nil {
+					slog.Error("unable to parse version", "tag", r.Tag, "error", err)
+					return err
+				}
+				v1, err := semver.NewVersion(entry.Tag)
+				if err != nil {
+					slog.Error("unable to parse version", "tag", entry.Tag, "error", err)
+					return err
+				}
+				if v0.LessThan(v1) {
+					slog.Info("Inserting release", "tag", entry.Tag, "before", r.Tag)
+					// add release before the current release
+					*c.Releases = slices.Insert(*c.Releases, i, Release{
+						Tag:        entry.Tag,
+						Date:       entry.Date,
+						Components: &[]Component{},
+					})
+					added = true
+				}
+				break
+			}
+
+			if !added {
+				// add release at the end
+				slog.Info("Adding release at the end", "tag", entry.Tag, "at the end")
 				*c.Releases = append(*c.Releases, Release{
 					Tag:        entry.Tag,
-					Components: &[]Component{}})
+					Date:       entry.Date,
+					Components: &[]Component{},
+				})
 			}
-			break
 		}
 	}
 
 	// find the right release and add the component
-	for i, release := range *c.Releases {
+	for _, release := range *c.Releases {
 		if release.Tag == entry.Tag {
-			*(*c.Releases)[i].Components = append(*(*c.Releases)[i].Components, Component{
+			*release.Components = append(*release.Components, Component{
 				Name:        entry.Component,
+				Title:       entry.Name,
 				Description: entry.Description,
 			})
 			break
 		}
 	}
-
+	return nil
 }
 
 func (c *Changelog) RenderJSON() (output []byte, err error) {

changelog/output/format_test.go

@@ -9,31 +9,31 @@ import (
 func TestChangelog_AddEntry(t *testing.T) {
 	changelog := &Changelog{}
 	changelog.AddEntry(Entry{
-		Tag:         "1.0.0",
+		Tag:         "1.19.3",
 		Name:        "Initial Release",
 		Component:   "frontend",
 		Description: "Initial frontend version",
 	})
 	changelog.AddEntry(Entry{
-		Tag:         "1.0.0",
+		Tag:         "1.19.3",
 		Name:        "Initial Release",
 		Component:   "backend",
 		Description: "Initial backend version",
 	})
 	changelog.AddEntry(Entry{
-		Tag:         "1.1.0",
+		Tag:         "1.22.1",
 		Name:        "Feature 1",
 		Component:   "frontend",
 		Description: "This cool frontend feature",
 	})
 	changelog.AddEntry(Entry{
-		Tag:         "1.1.0",
+		Tag:         "1.22.1",
 		Name:        "Feature 1",
 		Component:   "backend",
 		Description: "This cool backend feature",
 	})
 	changelog.AddEntry(Entry{
-		Tag:         "1.2.0",
+		Tag:         "1.25.0",
 		Name:        "Feature 2",
 		Component:   "frontend",
 		Description: "More cool frontend feature",

go.mod

@@ -3,13 +3,12 @@ module github.com/prodyna/changelog-json
 go 1.22.3
 
 require (
-	github.com/google/go-github/v61 v61.0.0
+	github.com/Masterminds/semver/v3 v3.2.1
 	github.com/shurcooL/githubv4 v0.0.0-20240429030203-be2daab69064
 	golang.org/x/oauth2 v0.20.0
 )
 
 require (
-	github.com/coreos/go-semver v0.3.1 // indirect
-	github.com/google/go-querystring v1.1.0 // indirect
+	github.com/google/go-cmp v0.6.0 // indirect
 	github.com/shurcooL/graphql v0.0.0-20230722043721-ed46e5a46466 // indirect
 )

go.sum

@@ -1,18 +1,10 @@
-github.com/coreos/go-semver v0.3.1 h1:yi21YpKnrx1gt5R+la8n5WgS0kCrsPp33dmEyHReZr4=
-github.com/coreos/go-semver v0.3.1/go.mod h1:irMmmIw/7yzSRPWryHsK7EYSg09caPQL03VsM8rvUec=
-github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/Masterminds/semver/v3 v3.2.1 h1:RN9w6+7QoMeJVGyfmbcgs28Br8cvmnucEXnY0rYXWg0=
+github.com/Masterminds/semver/v3 v3.2.1/go.mod h1:qvl/7zhW3nngYb5+80sSMF+FG2BjYrf8m9wsX0PNOMQ=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-github.com/google/go-github/v61 v61.0.0 h1:VwQCBwhyE9JclCI+22/7mLB1PuU9eowCXKY5pNlu1go=
-github.com/google/go-github/v61 v61.0.0/go.mod h1:0WR+KmsWX75G2EbpyGsGmradjo3IiciuI4BmdVCobQY=
-github.com/google/go-querystring v1.1.0 h1:AnCroh3fv4ZBgVIf1Iwtovgjaw/GiKJo8M8yD/fhyJ8=
-github.com/google/go-querystring v1.1.0/go.mod h1:Kcdr2DB4koayq7X8pmAG4sNG59So17icRSOU623lUBU=
 github.com/shurcooL/githubv4 v0.0.0-20240429030203-be2daab69064 h1:RCQBSFx5JrsbHltqTtJ+kN3U0Y3a/N/GlVdmRSoxzyE=
 github.com/shurcooL/githubv4 v0.0.0-20240429030203-be2daab69064/go.mod h1:zqMwyHmnN/eDOZOdiTohqIUKUrTFX62PNlu7IJdu0q8=
 github.com/shurcooL/graphql v0.0.0-20230722043721-ed46e5a46466 h1:17JxqqJY66GmZVHkmAsGEkcIu0oCe3AM420QDgGwZx0=
 github.com/shurcooL/graphql v0.0.0-20230722043721-ed46e5a46466/go.mod h1:9dIRpgIY7hVhoqfe0/FcYp0bpInZaT7dc3BYOprrIUE=
 golang.org/x/oauth2 v0.20.0 h1:4mQdhULixXKP1rwYBW0vAijoXnkTG0BLCDRzfe1idMo=
 golang.org/x/oauth2 v0.20.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=