diff options
-rw-r--r-- | Makefile | 1 | ||||
-rw-r--r-- | _examples/checkout-branch/main.go | 85 | ||||
-rw-r--r-- | _examples/common_test.go | 73 |
3 files changed, 124 insertions, 35 deletions
@@ -28,6 +28,7 @@ build-git: test: @echo "running against `git version`"; \ $(GOTEST) -race ./... + $(GOTEST) -v _examples/common_test.go _examples/common.go --examples TEMP_REPO := $(shell mktemp) test-sha256: diff --git a/_examples/checkout-branch/main.go b/_examples/checkout-branch/main.go new file mode 100644 index 0000000..59dfdfc --- /dev/null +++ b/_examples/checkout-branch/main.go @@ -0,0 +1,85 @@ +package main + +import ( + "fmt" + "os" + + "github.com/go-git/go-git/v5" + . "github.com/go-git/go-git/v5/_examples" + "github.com/go-git/go-git/v5/config" + "github.com/go-git/go-git/v5/plumbing" +) + +// Checkout a branch +func main() { + CheckArgs("<url>", "<directory>", "<branch>") + url, directory, branch := os.Args[1], os.Args[2], os.Args[3] + + // Clone the given repository to the given directory + Info("git clone %s %s", url, directory) + r, err := git.PlainClone(directory, false, &git.CloneOptions{ + URL: url, + }) + CheckIfError(err) + + // ... retrieving the commit being pointed by HEAD + Info("git show-ref --head HEAD") + ref, err := r.Head() + CheckIfError(err) + + fmt.Println(ref.Hash()) + + w, err := r.Worktree() + CheckIfError(err) + + // ... checking out branch + Info("git checkout %s", branch) + + branchRefName := plumbing.NewBranchReferenceName(branch) + branchCoOpts := git.CheckoutOptions{ + Branch: plumbing.ReferenceName(branchRefName), + Force: true, + } + if err := w.Checkout(&branchCoOpts); err != nil { + Warning("local checkout of branch '%s' failed, will attempt to fetch remote branch of same name.", branch) + Warning("like `git checkout <branch>` defaulting to `git checkout -b <branch> --track <remote>/<branch>`") + + mirrorRemoteBranchRefSpec := fmt.Sprintf("refs/heads/%s:refs/heads/%s", branch, branch) + err = fetchOrigin(r, mirrorRemoteBranchRefSpec) + CheckIfError(err) + + err = w.Checkout(&branchCoOpts) + CheckIfError(err) + } + CheckIfError(err) + + Info("checked out branch: %s", branch) + + // ... retrieving the commit being pointed by HEAD (branch now) + Info("git show-ref --head HEAD") + ref, err = r.Head() + CheckIfError(err) + fmt.Println(ref.Hash()) +} + +func fetchOrigin(repo *git.Repository, refSpecStr string) error { + remote, err := repo.Remote("origin") + CheckIfError(err) + + var refSpecs []config.RefSpec + if refSpecStr != "" { + refSpecs = []config.RefSpec{config.RefSpec(refSpecStr)} + } + + if err = remote.Fetch(&git.FetchOptions{ + RefSpecs: refSpecs, + }); err != nil { + if err == git.NoErrAlreadyUpToDate { + fmt.Print("refs already up to date") + } else { + return fmt.Errorf("fetch origin failed: %v", err) + } + } + + return nil +} diff --git a/_examples/common_test.go b/_examples/common_test.go index 6630f15..5e3f753 100644 --- a/_examples/common_test.go +++ b/_examples/common_test.go @@ -2,10 +2,10 @@ package examples import ( "flag" - "go/build" "os" "os/exec" "path/filepath" + "runtime" "testing" ) @@ -14,26 +14,43 @@ var examplesTest = flag.Bool("examples", false, "run the examples tests") var defaultURL = "https://github.com/git-fixtures/basic.git" var args = map[string][]string{ - "branch": {defaultURL, tempFolder()}, - "checkout": {defaultURL, tempFolder(), "35e85108805c84807bc66a02d91535e1e24b38b9"}, - "clone": {defaultURL, tempFolder()}, - "context": {defaultURL, tempFolder()}, - "commit": {cloneRepository(defaultURL, tempFolder())}, - "custom_http": {defaultURL}, - "open": {cloneRepository(defaultURL, tempFolder())}, - "progress": {defaultURL, tempFolder()}, - "push": {setEmptyRemote(cloneRepository(defaultURL, tempFolder()))}, - "revision": {cloneRepository(defaultURL, tempFolder()), "master~2^"}, - "showcase": {defaultURL, tempFolder()}, - "tag": {cloneRepository(defaultURL, tempFolder())}, - "pull": {createRepositoryWithRemote(tempFolder(), defaultURL)}, - "ls": {cloneRepository(defaultURL, tempFolder()), "HEAD", "vendor"}, - "merge_base": {cloneRepository(defaultURL, tempFolder()), "--is-ancestor", "HEAD~3", "HEAD^"}, + "blame": {defaultURL, "CHANGELOG"}, + "branch": {defaultURL, tempFolder()}, + "checkout": {defaultURL, tempFolder(), "35e85108805c84807bc66a02d91535e1e24b38b9"}, + "checkout-branch": {defaultURL, tempFolder(), "branch"}, + "clone": {defaultURL, tempFolder()}, + "commit": {cloneRepository(defaultURL, tempFolder())}, + "context": {defaultURL, tempFolder()}, + "custom_http": {defaultURL}, + "find-if-any-tag-point-head": {cloneRepository(defaultURL, tempFolder())}, + "ls": {cloneRepository(defaultURL, tempFolder()), "HEAD", "vendor"}, + "ls-remote": {defaultURL}, + "merge_base": {cloneRepository(defaultURL, tempFolder()), "--is-ancestor", "HEAD~3", "HEAD^"}, + "open": {cloneRepository(defaultURL, tempFolder())}, + "progress": {defaultURL, tempFolder()}, + "pull": {createRepositoryWithRemote(tempFolder(), defaultURL)}, + "push": {setEmptyRemote(cloneRepository(defaultURL, tempFolder()))}, + "revision": {cloneRepository(defaultURL, tempFolder()), "master~2^"}, + "sha256": {tempFolder()}, + "showcase": {defaultURL, tempFolder()}, + "tag": {cloneRepository(defaultURL, tempFolder())}, } -var ignored = map[string]bool{} +// tests not working / set-up +var ignored = map[string]bool{ + "azure_devops": true, + "ls": true, + "sha256": true, + "submodule": true, + "tag-create-push": true, +} + +var ( + tempFolders = []string{} -var tempFolders = []string{} + _, callingFile, _, _ = runtime.Caller(0) + basepath = filepath.Dir(callingFile) +) func TestExamples(t *testing.T) { flag.Parse() @@ -44,13 +61,13 @@ func TestExamples(t *testing.T) { defer deleteTempFolders() - examples, err := filepath.Glob(examplesFolder()) + exampleMains, err := filepath.Glob(filepath.Join(basepath, "*", "main.go")) if err != nil { t.Errorf("error finding tests: %s", err) } - for _, example := range examples { - dir := filepath.Dir(example) + for _, main := range exampleMains { + dir := filepath.Dir(main) _, name := filepath.Split(dir) if ignored[name] { @@ -71,20 +88,6 @@ func tempFolder() string { return path } -func packageFolder() string { - return filepath.Join( - build.Default.GOPATH, - "src", "github.com/go-git/go-git/v5", - ) -} - -func examplesFolder() string { - return filepath.Join( - packageFolder(), - "_examples", "*", "main.go", - ) -} - func cloneRepository(url, folder string) string { cmd := exec.Command("git", "clone", url, folder) err := cmd.Run() |