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package fakegit // import "github.com/docker/docker/testutil/fakegit"
import (
"fmt"
"net/http"
"net/http/httptest"
"os"
"os/exec"
"path/filepath"
"testing"
"github.com/docker/docker/testutil/fakecontext"
"github.com/docker/docker/testutil/fakestorage"
)
type gitServer interface {
URL() string
Close() error
}
type localGitServer struct {
*httptest.Server
}
func (r *localGitServer) Close() error {
r.Server.Close()
return nil
}
func (r *localGitServer) URL() string {
return r.Server.URL
}
// FakeGit is a fake git server
type FakeGit struct {
root string
server gitServer
RepoURL string
}
// Close closes the server, implements Closer interface
func (g *FakeGit) Close() {
g.server.Close()
os.RemoveAll(g.root)
}
// New create a fake git server that can be used for git related tests
func New(c testing.TB, name string, files map[string]string, enforceLocalServer bool) *FakeGit {
c.Helper()
ctx := fakecontext.New(c, "", fakecontext.WithFiles(files))
defer ctx.Close()
curdir, err := os.Getwd()
if err != nil {
c.Fatal(err)
}
defer os.Chdir(curdir)
if output, err := exec.Command("git", "init", ctx.Dir).CombinedOutput(); err != nil {
c.Fatalf("error trying to init repo: %s (%s)", err, output)
}
err = os.Chdir(ctx.Dir)
if err != nil {
c.Fatal(err)
}
if output, err := exec.Command("git", "config", "user.name", "Fake User").CombinedOutput(); err != nil {
c.Fatalf("error trying to set 'user.name': %s (%s)", err, output)
}
if output, err := exec.Command("git", "config", "user.email", "fake.user@example.com").CombinedOutput(); err != nil {
c.Fatalf("error trying to set 'user.email': %s (%s)", err, output)
}
if output, err := exec.Command("git", "add", "*").CombinedOutput(); err != nil {
c.Fatalf("error trying to add files to repo: %s (%s)", err, output)
}
if output, err := exec.Command("git", "commit", "-a", "-m", "Initial commit").CombinedOutput(); err != nil {
c.Fatalf("error trying to commit to repo: %s (%s)", err, output)
}
root, err := os.MkdirTemp("", "docker-test-git-repo")
if err != nil {
c.Fatal(err)
}
repoPath := filepath.Join(root, name+".git")
if output, err := exec.Command("git", "clone", "--bare", ctx.Dir, repoPath).CombinedOutput(); err != nil {
os.RemoveAll(root)
c.Fatalf("error trying to clone --bare: %s (%s)", err, output)
}
err = os.Chdir(repoPath)
if err != nil {
os.RemoveAll(root)
c.Fatal(err)
}
if output, err := exec.Command("git", "update-server-info").CombinedOutput(); err != nil {
os.RemoveAll(root)
c.Fatalf("error trying to git update-server-info: %s (%s)", err, output)
}
err = os.Chdir(curdir)
if err != nil {
os.RemoveAll(root)
c.Fatal(err)
}
var server gitServer
if !enforceLocalServer {
// use fakeStorage server, which might be local or remote (at test daemon)
server = fakestorage.New(c, root)
} else {
// always start a local http server on CLI test machine
httpServer := httptest.NewServer(http.FileServer(http.Dir(root)))
server = &localGitServer{httpServer}
}
return &FakeGit{
root: root,
server: server,
RepoURL: fmt.Sprintf("%s/%s.git", server.URL(), name),
}
}
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