refactor: move things to packages (#39)

changelog.go

@@ -1,58 +0,0 @@
-package rp
-
-import (
-	"bytes"
-	_ "embed"
-	"html/template"
-	"log"
-)
-
-const (
-	ChangelogFile   = "CHANGELOG.md"
-	ChangelogHeader = "# Changelog"
-)
-
-var (
-	changelogTemplate *template.Template
-)
-
-//go:embed changelog.md.tpl
-var rawChangelogTemplate string
-
-func init() {
-	var err error
-	changelogTemplate, err = template.New("changelog").Parse(rawChangelogTemplate)
-	if err != nil {
-		log.Fatalf("failed to parse changelog template: %v", err)
-	}
-}
-
-func NewChangelogEntry(commits []AnalyzedCommit, version, link, prefix, suffix string) (string, error) {
-	features := make([]AnalyzedCommit, 0)
-	fixes := make([]AnalyzedCommit, 0)
-
-	for _, commit := range commits {
-		switch commit.Type {
-		case "feat":
-			features = append(features, commit)
-		case "fix":
-			fixes = append(fixes, commit)
-		}
-	}
-
-	var changelog bytes.Buffer
-	err := changelogTemplate.Execute(&changelog, map[string]any{
-		"Features":    features,
-		"Fixes":       fixes,
-		"Version":     version,
-		"VersionLink": link,
-		"Prefix":      prefix,
-		"Suffix":      suffix,
-	})
-	if err != nil {
-		return "", err
-	}
-
-	return changelog.String(), nil
-
-}