add new api for getting total commit logs

Author: neel1996

git/commit/commit.go

@@ -10,6 +10,7 @@ type Commit interface {
 
 type Operation struct {
 	Changes Changes
+	Total   Total
 }
 
 func (c Operation) GitCommitChange() (string, error) {
@@ -22,3 +23,7 @@ func (c Operation) GitCommitChange() (string, error) {
 
 	return global.CommitChangeSuccess, nil
 }
+
+func (c Operation) GitTotalCommits() int {
+	return c.Total.Get()
+}

git/commit/git_total_commits.go

@@ -0,0 +1,63 @@
+package commit
+
+import (
+	"fmt"
+	git2go "github.com/libgit2/git2go/v31"
+	"github.com/neel1996/gitconvex/global"
+)
+
+type Total interface {
+	Get() int
+}
+
+type totalCommits struct {
+	repo *git2go.Repository
+}
+
+// Get function returns the total number of commits from the repo and commit message of the most recent commit
+func (t totalCommits) Get() int {
+	var total = 0
+	repo := t.repo
+
+	logItr, itrErr := repo.Walk()
+	if itrErr != nil {
+		logger.Log(fmt.Sprintf("Repo has no logs -> %s", itrErr.Error()), global.StatusError)
+		return total
+	}
+
+	commits, err := t.iterateCommitLogs(logItr)
+	if err != nil {
+		logger.Log(fmt.Sprintf("Unable to obtain commits for the repo"), global.StatusError)
+		return total
+
+	}
+
+	total = len(commits)
+	if total == 0 {
+		logger.Log("Repo has no commit logs", global.StatusError)
+		return total
+	}
+
+	logger.Log(fmt.Sprintf("Total commits in the repo -> %v", total), global.StatusInfo)
+	return total
+}
+
+func (t totalCommits) iterateCommitLogs(logItr *git2go.RevWalk) ([]git2go.Commit, error) {
+	var commits []git2go.Commit
+	_ = logItr.PushHead()
+
+	err := logItr.Iterate(func(commit *git2go.Commit) bool {
+		if commit != nil {
+			commits = append(commits, *commit)
+			return true
+		} else {
+			return false
+		}
+	})
+
+	return commits, err
+}
+
+func NewTotalCommits(repo *git2go.Repository) Total {
+	return totalCommits{repo: repo}
+}

git/commit/git_total_commits_test.go

@@ -0,0 +1,49 @@
+package commit
+
+import (
+	"fmt"
+	git2go "github.com/libgit2/git2go/v31"
+	"github.com/stretchr/testify/suite"
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+type TotalCommitsTestSuite struct {
+	suite.Suite
+	total      Total
+	repo       *git2go.Repository
+	noHeadRepo *git2go.Repository
+}
+
+func TestTotalCommitsTestSuite(t *testing.T) {
+	suite.Run(t, new(TotalCommitsTestSuite))
+}
+
+func (suite *TotalCommitsTestSuite) SetupTest() {
+	r, err := git2go.OpenRepository(os.Getenv("GITCONVEX_TEST_REPO"))
+	if err != nil {
+		fmt.Println(err)
+	}
+
+	noHeadPath := os.Getenv("GITCONVEX_TEST_REPO") + string(filepath.Separator) + "no_head"
+	noHeadRepo, _ := git2go.OpenRepository(noHeadPath)
+
+	suite.repo = r
+	suite.noHeadRepo = noHeadRepo
+	suite.total = NewTotalCommits(suite.repo)
+}
+
+func (suite *TotalCommitsTestSuite) TestGet_WhenLogsAreAvailable_ShouldReturnTotal() {
+	got := suite.total.Get()
+
+	suite.NotZero(got)
+}
+
+func (suite *TotalCommitsTestSuite) TestGet_WhenRepoHasNoLogs_ShouldReturnZero() {
+	suite.total = NewTotalCommits(suite.noHeadRepo)
+
+	got := suite.total.Get()
+
+	suite.Zero(got)
+}