Merge pull request #153 from darkowlzz/gittestserver-init-repo

gittestserver: Add InitRepo() to initialize a repo

gittestserver/go.mod

@@ -3,8 +3,8 @@ module github.com/fluxcd/pkg/gittestserver
 go 1.16
 
 require (
+	github.com/go-git/go-billy/v5 v5.3.1
+	github.com/go-git/go-git/v5 v5.4.2
 	github.com/satori/go.uuid v1.2.0 // indirect
 	github.com/sosedoff/gitkit v0.2.1-0.20200818155723-72ebbcf5056d
-	github.com/stretchr/testify v1.6.1 // indirect
-	golang.org/x/crypto v0.0.0-20200728195943-123391ffb6de // indirect
 )

gittestserver/go.sum

@@ -1,23 +1,105 @@
-github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
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+github.com/ProtonMail/go-crypto v0.0.0-20210428141323-04723f9f07d7 h1:YoJbenK9C67SkzkDfmQuVln04ygHj3vjZfd9FL+GmQQ=
+github.com/ProtonMail/go-crypto v0.0.0-20210428141323-04723f9f07d7/go.mod h1:z4/9nQmJSSwwds7ejkxaJwO37dru3geImFUdJlaLzQo=
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 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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 github.com/sosedoff/gitkit v0.2.1-0.20200818155723-72ebbcf5056d/go.mod h1:A+o6ZazfVJwetlcHz3ah6th66XcBdsyzLo+aBt/AsK4=
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 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
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gittestserver/server.go

@@ -19,11 +19,19 @@ package gittestserver
 import (
 	"crypto/tls"
 	"crypto/x509"
+	"fmt"
 	"net/http/httptest"
 	"net/url"
 	"os"
 	"path/filepath"
+	"time"
 
+	"github.com/go-git/go-billy/v5/memfs"
+	gogit "github.com/go-git/go-git/v5"
+	"github.com/go-git/go-git/v5/config"
+	"github.com/go-git/go-git/v5/plumbing"
+	"github.com/go-git/go-git/v5/plumbing/object"
+	"github.com/go-git/go-git/v5/storage/memory"
 	"github.com/sosedoff/gitkit"
 )
 
@@ -244,3 +252,93 @@ func (s *GitServer) SSHAddress() string {
 	}
 	return ""
 }
+
+// InitRepo initializes a new repository in the git server with the given
+// fixture at the repoPath.
+func (s *GitServer) InitRepo(fixture, branch, repoPath string) error {
+	// Create a bare repo to initialize.
+	localRepo := filepath.Join(s.Root(), repoPath)
+	_, err := gogit.PlainInit(localRepo, true)
+	if err != nil {
+		return err
+	}
+
+	// Create a new repo with the provided fixture.
+	repo, err := gogit.Init(memory.NewStorage(), memfs.New())
+	if err != nil {
+		return err
+	}
+	branchRef := plumbing.NewBranchReferenceName(branch)
+	if err = repo.CreateBranch(&config.Branch{
+		Name:   branch,
+		Remote: gogit.DefaultRemoteName,
+		Merge:  branchRef,
+	}); err != nil {
+		return err
+	}
+	if err := commitFromFixture(repo, fixture); err != nil {
+		return err
+	}
+
+	// Push to the local repo.
+	localRepoURL := fmt.Sprintf("file://%s", localRepo)
+	if _, err = repo.CreateRemote(&config.RemoteConfig{
+		Name: gogit.DefaultRemoteName,
+		URLs: []string{localRepoURL},
+	}); err != nil {
+		return err
+	}
+	return repo.Push(&gogit.PushOptions{
+		RefSpecs: []config.RefSpec{"refs/heads/*:refs/heads/*"},
+	})
+}
+
+func commitFromFixture(repo *gogit.Repository, fixture string) error {
+	working, err := repo.Worktree()
+	if err != nil {
+		return err
+	}
+	fs := working.Filesystem
+
+	if err = filepath.Walk(fixture, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+		if info.IsDir() {
+			return fs.MkdirAll(fs.Join(path[len(fixture):]), info.Mode())
+		}
+
+		fileBytes, err := os.ReadFile(path)
+		if err != nil {
+			return err
+		}
+
+		ff, err := fs.Create(path[len(fixture):])
+		if err != nil {
+			return err
+		}
+		defer ff.Close()
+
+		_, err = ff.Write(fileBytes)
+		return err
+	}); err != nil {
+		return err
+	}
+
+	_, err = working.Add(".")
+	if err != nil {
+		return err
+	}
+
+	if _, err = working.Commit("Fixtures from "+fixture, &gogit.CommitOptions{
+		Author: &object.Signature{
+			Name:  "Testbot",
+			Email: "test@example.com",
+			When:  time.Now(),
+		},
+	}); err != nil {
+		return err
+	}
+
+	return nil
+}

gittestserver/server_test.go

@@ -3,9 +3,12 @@ package gittestserver
 import (
 	"fmt"
 	"os"
+	"path/filepath"
 	"strings"
 	"testing"
 	"time"
+
+	gogit "github.com/go-git/go-git/v5"
 )
 
 func TestCreateSSHServer(t *testing.T) {
@@ -106,3 +109,43 @@ func TestHTTPSServer(t *testing.T) {
 		t.Errorf("URL given for HTTPS server doesn't start with https://, got: %s", addr)
 	}
 }
+
+func TestInitRepo(t *testing.T) {
+	srv, err := NewTempGitServer()
+	if err != nil {
+		t.Fatal(err)
+	}
+	srv.Auth("test-user", "test-pswd")
+	defer os.RemoveAll(srv.Root())
+	srv.KeyDir(srv.Root())
+	if err = srv.StartHTTP(); err != nil {
+		t.Fatal(err)
+	}
+	defer srv.StopHTTP()
+
+	repoPath := "bar/test-reponame"
+	err = srv.InitRepo("testdata/git/repo1", "main", repoPath)
+	if err != nil {
+		t.Fatalf("failed to initialize repo: %v", err)
+	}
+
+	// Clone and verify the repo.
+	cloneDir, err := os.MkdirTemp("", "test-clone-")
+	if err != nil {
+		t.Fatalf("failed to create clone dir: %v", err)
+	}
+	defer os.RemoveAll(cloneDir)
+
+	repoURL := srv.HTTPAddressWithCredentials() + "/" + repoPath
+	_, err = gogit.PlainClone(cloneDir, false, &gogit.CloneOptions{
+		URL: repoURL,
+	})
+	if err != nil {
+		t.Fatalf("failed to clone repo: %v", err)
+	}
+
+	// Check file from clone.
+	if _, err := os.Stat(filepath.Join(cloneDir, "foo.txt")); os.IsNotExist(err) {
+		t.Error("expected foo.txt to exist")
+	}
+}

gittestserver/testdata/git/repo1/foo.txt

@@ -0,0 +1 @@
+test file