style(lint): fix lint issues

.golangci.yml

@@ -0,0 +1,11 @@
+run:
+  tests: true
+
+linters-settings:
+  golint:
+    min-confidence: 0
+issues:
+  exclude-use-default: false
+linters:
+  enable:
+      - golint

.travis.yml

@@ -20,7 +20,7 @@ before_script:
   - curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(go env GOPATH)/bin v1.16.0
 
 script:
-  - golangci-lint run 
+  - golangci-lint run --golint.min-confidence 0 --exclude-use-default=no
   - go test -v ./...
   - go build -o build/go-semantic-release ./cmd/go-semantic-release/
   - GOOS=windows GOARCH=386 go build -o build/go-semantic-release.exe ./cmd/go-semantic-release/

cmd/go-semantic-release/main.go

@@ -1,3 +1,4 @@
+// Package main as start point for go build
 package main
 
 import (

internal/analyzer/analyzer.go

@@ -1,3 +1,4 @@
+// Package analyzer provides different commit analyzer
 package analyzer
 
 import (
@@ -5,20 +6,23 @@ import (
 	log "github.com/sirupsen/logrus"
 )
 
+//Analyzer struct
 type Analyzer struct {
 	CommitFormat string
 }
 
+//Rules for commits
 type Rules struct {
 	Tag     string
 	Release string
 }
 
-type AnalyzeCommit interface {
+type analyzeCommit interface {
-	Analyze(commit gitutil.Commit, tag string) (AnalyzedCommit, bool)
+	analyze(commit gitutil.Commit, tag string) (AnalyzedCommit, bool)
-	GetRules() []Rules
+	getRules() []Rules
 }
 
+//AnalyzedCommit struct
 type AnalyzedCommit struct {
 	Commit                      gitutil.Commit
 	ParsedMessage               string
@@ -26,6 +30,7 @@ type AnalyzedCommit struct {
 	ParsedBreakingChangeMessage string
 }
 
+//New Analyzer struct for given commit format
 func New(format string) *Analyzer {
 	return &Analyzer{
 		CommitFormat: format,
@@ -33,13 +38,14 @@ func New(format string) *Analyzer {
 
 }
 
+// Analyze commits and return commits splitted by major,minor,patch
 func (a *Analyzer) Analyze(commits []gitutil.Commit) map[string][]AnalyzedCommit {
 
-	var commitAnalayzer AnalyzeCommit
+	var commitAnalayzer analyzeCommit
 	switch a.CommitFormat {
 	case "angular":
 		log.Infof("analyze angular format")
-		commitAnalayzer = NewAngular()
+		commitAnalayzer = newAngular()
 	}
 
 	analyzedCommits := make(map[string][]AnalyzedCommit)
@@ -48,8 +54,8 @@ func (a *Analyzer) Analyze(commits []gitutil.Commit) map[string][]AnalyzedCommit
 	analyzedCommits["patch"] = make([]AnalyzedCommit, 0)
 
 	for _, commit := range commits {
-		for _, rule := range commitAnalayzer.GetRules() {
+		for _, rule := range commitAnalayzer.getRules() {
-			analyzedCommit, hasBreakingChange := commitAnalayzer.Analyze(commit, rule.Tag)
+			analyzedCommit, hasBreakingChange := commitAnalayzer.analyze(commit, rule.Tag)
 			if hasBreakingChange {
 				analyzedCommits["major"] = append(analyzedCommits["major"], analyzedCommit)
 			} else {

internal/analyzer/angular.go

@@ -1,3 +1,4 @@
+// Package analyzer provides different commit analyzer
 package analyzer
 
 import (
@@ -7,13 +8,13 @@ import (
 	"github.com/Nightapes/go-semantic-release/internal/gitutil"
 )
 
-type Angular struct {
+type angular struct {
 	rules []Rules
 	regex string
 }
 
-func NewAngular() *Angular {
+func newAngular() *angular {
-	return &Angular{
+	return &angular{
 		regex: `(TAG)(?:\((.*)\))?: (.*)`,
 		rules: []Rules{
 			{
@@ -31,11 +32,11 @@ func NewAngular() *Angular {
 	}
 }
 
-func (a *Angular) GetRules() []Rules {
+func (a *angular) getRules() []Rules {
 	return a.rules
 }
 
-func (a *Angular) Analyze(commit gitutil.Commit, tag string) (AnalyzedCommit, bool) {
+func (a *angular) analyze(commit gitutil.Commit, tag string) (AnalyzedCommit, bool) {
 
 	analyzed := AnalyzedCommit{
 		Commit: commit,

internal/gitutil/gitutil.go

@@ -1,3 +1,4 @@
+// Package gitutil provides helper methods for git
 package gitutil
 
 import (
@@ -10,29 +11,33 @@ import (
 	"gopkg.in/src-d/go-git.v4/plumbing/object"
 )
 
+// Commit struct
 type Commit struct {
 	Message string
 	Author  string
 	Hash    string
 }
 
-type GitUtils struct {
+// GitUtil struct
+type GitUtil struct {
 	Repository *git.Repository
 }
 
-func New(folder string) (*GitUtils, error) {
+// New GitUtil struct and open git repository
+func New(folder string) (*GitUtil, error) {
 	r, err := git.PlainOpen(folder)
 	if err != nil {
 		return nil, err
 	}
-	utils := &GitUtils{
+	utils := &GitUtil{
 		Repository: r,
 	}
 	return utils, nil
 
 }
 
-func (g *GitUtils) GetHash() (string, error) {
+// GetHash from git HEAD
+func (g *GitUtil) GetHash() (string, error) {
 	ref, err := g.Repository.Head()
 	if err != nil {
 		return "", err
@@ -40,20 +45,22 @@ func (g *GitUtils) GetHash() (string, error) {
 	return ref.Hash().String(), nil
 }
 
-func (g *GitUtils) GetBranch() (string, error) {
+// GetBranch from git HEAD
+func (g *GitUtil) GetBranch() (string, error) {
 	ref, err := g.Repository.Head()
 	if err != nil {
 		return "", err
 	}
 
 	if !ref.Name().IsBranch() {
-		return "", fmt.Errorf("No branch found, found %s, please checkout a branch (git checkout <BRANCH>)", ref.Name().String())
+		return "", fmt.Errorf("no branch found, found %s, please checkout a branch (git checkout <BRANCH>)", ref.Name().String())
 	}
 
 	return ref.Name().Short(), nil
 }
 
-func (g *GitUtils) GetLastVersion() (*semver.Version, string, error) {
+// GetLastVersion from git tags
+func (g *GitUtil) GetLastVersion() (*semver.Version, string, error) {
 
 	log.Debugf("GetLastVersion")
 
@@ -103,7 +110,8 @@ func (g *GitUtils) GetLastVersion() (*semver.Version, string, error) {
 	return tags[0], tagObject.Target.String(), nil
 }
 
-func (g *GitUtils) GetCommits(lastTagHash string) ([]Commit, error) {
+// GetCommits from git hash to HEAD
+func (g *GitUtil) GetCommits(lastTagHash string) ([]Commit, error) {
 
 	log.Printf("Read head")
 	ref, err := g.Repository.Head()
@@ -136,5 +144,5 @@ func (g *GitUtils) GetCommits(lastTagHash string) ([]Commit, error) {
 		return nil
 	})
 
-	return commits, nil
+	return commits, err
 }

internal/storage/storage.go

@@ -1,3 +1,4 @@
+// Package storage helper for saving/reading version file
 package storage
 
 import (

pkg/semanticrelease/semantic-release.go

@@ -1,3 +1,4 @@
+// Package semanticrelease provides public methods to include in own code
 package semanticrelease
 
 import (
@@ -10,7 +11,7 @@ import (
 	log "github.com/sirupsen/logrus"
 )
 
-// GetNextVersion from .version or calculate new
+// GetNextVersion from .version or calculate new from commits
 func GetNextVersion(repro string) error {
 	util, err := gitutil.New(repro)
 	if err != nil {
@@ -38,8 +39,11 @@ func GetNextVersion(repro string) error {
 
 	if lastVersion == nil {
 		defaultVersion, _ := semver.NewVersion("1.0.0")
-		SetVersion(defaultVersion.String(), repro)
+		err := SetVersion(defaultVersion.String(), repro)
-		fmt.Printf(defaultVersion.String())
+		if err != nil {
+			return err
+		}
+		fmt.Printf("%s", defaultVersion.String())
 		return nil
 	}
 
@@ -64,12 +68,16 @@ func GetNextVersion(repro string) error {
 		newVersion = lastVersion.IncPatch()
 	}
 
-	SetVersion(newVersion.String(), repro)
+	err = SetVersion(newVersion.String(), repro)
-	fmt.Printf(newVersion.String())
+	if err != nil {
+		return err
+	}
+	fmt.Printf("%s", newVersion.String())
 
 	return err
 }
 
+//SetVersion for git repository
 func SetVersion(version string, repro string) error {
 
 	util, err := gitutil.New(repro)
@@ -109,6 +117,3 @@ func SetVersion(version string, repro string) error {
 
 	return storage.Write(newVersionContent)
 }
-
-func Release() {
-}