How to use Patch method of vcs Package

Best Syzkaller code snippet using vcs.Patch

vcs.go

Source:vcs.go

...85		return nil, err86	}87	return vcs, nil88}89// PatchVCS patches an instance of VCS.90func (s *Store) PatchVCS(ctx context.Context, patch *api.VCSPatch) (*api.VCS, error) {91	vcsRaw, err := s.patchVCSRaw(ctx, patch)92	if err != nil {93		return nil, errors.Wrapf(err, "failed to patch VCS with VCSPatch[%+v]", patch)94	}95	vcs, err := s.composeVCS(ctx, vcsRaw)96	if err != nil {97		return nil, errors.Wrapf(err, "failed to compose VCS with vcsRaw[%+v]", vcsRaw)98	}99	return vcs, nil100}101// DeleteVCS deletes an instance of VCS.102func (s *Store) DeleteVCS(ctx context.Context, delete *api.VCSDelete) error {103	if err := s.deleteVCSRaw(ctx, delete); err != nil {104		return errors.Wrapf(err, "failed to delete VCS with VCSDelete[%+v]", delete)105	}106	return nil107}108//109// private functions110//111func (s *Store) composeVCS(ctx context.Context, raw *vcsRaw) (*api.VCS, error) {112	vcs := raw.toVCS()113	creator, err := s.GetPrincipalByID(ctx, vcs.CreatorID)114	if err != nil {115		return nil, err116	}117	vcs.Creator = creator118	updater, err := s.GetPrincipalByID(ctx, vcs.UpdaterID)119	if err != nil {120		return nil, err121	}122	vcs.Updater = updater123	return vcs, nil124}125// createVCSRaw creates a new vcs.126func (s *Store) createVCSRaw(ctx context.Context, create *api.VCSCreate) (*vcsRaw, error) {127	tx, err := s.db.BeginTx(ctx, nil)128	if err != nil {129		return nil, FormatError(err)130	}131	defer tx.Rollback()132	vcs, err := createVCSImpl(ctx, tx, create)133	if err != nil {134		return nil, err135	}136	if err := tx.Commit(); err != nil {137		return nil, FormatError(err)138	}139	return vcs, nil140}141// findVCSRaw retrieves a list of VCSs based on find conditions.142func (s *Store) findVCSRaw(ctx context.Context, find *api.VCSFind) ([]*vcsRaw, error) {143	tx, err := s.db.BeginTx(ctx, nil)144	if err != nil {145		return nil, FormatError(err)146	}147	defer tx.Rollback()148	list, err := findVCSImpl(ctx, tx, find)149	if err != nil {150		return nil, err151	}152	return list, nil153}154// getVCSRaw retrieves a single vcs based on find.155// Returns ECONFLICT if finding more than 1 matching records.156func (s *Store) getVCSRaw(ctx context.Context, id int) (*vcsRaw, error) {157	tx, err := s.db.BeginTx(ctx, nil)158	if err != nil {159		return nil, FormatError(err)160	}161	defer tx.Rollback()162	find := &api.VCSFind{163		ID: &id,164	}165	list, err := findVCSImpl(ctx, tx, find)166	if err != nil {167		return nil, err168	}169	if len(list) == 0 {170		return nil, nil171	} else if len(list) > 1 {172		return nil, &common.Error{Code: common.Conflict, Err: errors.Errorf("found %d VCSs with filter %+v, expect 1", len(list), find)}173	}174	return list[0], nil175}176// patchVCSRaw updates an existing vcs by ID.177// Returns ENOTFOUND if vcs does not exist.178func (s *Store) patchVCSRaw(ctx context.Context, patch *api.VCSPatch) (*vcsRaw, error) {179	tx, err := s.db.BeginTx(ctx, nil)180	if err != nil {181		return nil, FormatError(err)182	}183	defer tx.Rollback()184	vcs, err := patchVCSImpl(ctx, tx, patch)185	if err != nil {186		return nil, FormatError(err)187	}188	if err := tx.Commit(); err != nil {189		return nil, FormatError(err)190	}191	return vcs, nil192}193// deleteVCSRaw deletes an existing vcs by ID.194func (s *Store) deleteVCSRaw(ctx context.Context, delete *api.VCSDelete) error {195	tx, err := s.db.BeginTx(ctx, nil)196	if err != nil {197		return FormatError(err)198	}199	defer tx.Rollback()200	if err := s.deleteVCSImpl(ctx, tx, delete); err != nil {201		return FormatError(err)202	}203	if err := tx.Commit(); err != nil {204		return FormatError(err)205	}206	return nil207}208//209// database access implementations210//211// createVCSImpl creates a new vcs.212func createVCSImpl(ctx context.Context, tx *Tx, create *api.VCSCreate) (*vcsRaw, error) {213	// Insert row into database.214	query := `215		INSERT INTO vcs (216			creator_id,217			updater_id,218			name,219			type,220			instance_url,221			api_url,222			application_id,223			secret224		)225		VALUES ($1, $2, $3, $4, $5, $6, $7, $8)226		RETURNING id, creator_id, created_ts, updater_id, updated_ts, name, type, instance_url, api_url, application_id, secret227	`228	var vcs vcsRaw229	if err := tx.QueryRowContext(ctx, query,230		create.CreatorID,231		create.CreatorID,232		create.Name,233		create.Type,234		create.InstanceURL,235		create.APIURL,236		create.ApplicationID,237		create.Secret,238	).Scan(239		&vcs.ID,240		&vcs.CreatorID,241		&vcs.CreatedTs,242		&vcs.UpdaterID,243		&vcs.UpdatedTs,244		&vcs.Name,245		&vcs.Type,246		&vcs.InstanceURL,247		&vcs.APIURL,248		&vcs.ApplicationID,249		&vcs.Secret,250	); err != nil {251		if err == sql.ErrNoRows {252			return nil, common.FormatDBErrorEmptyRowWithQuery(query)253		}254		return nil, FormatError(err)255	}256	return &vcs, nil257}258func findVCSImpl(ctx context.Context, tx *Tx, find *api.VCSFind) ([]*vcsRaw, error) {259	// Build WHERE clause.260	where, args := []string{"1 = 1"}, []interface{}{}261	if v := find.ID; v != nil {262		where, args = append(where, "id = $1"), append(args, *v)263	}264	rows, err := tx.QueryContext(ctx, `265		SELECT266			id,267			creator_id,268			created_ts,269			updater_id,270			updated_ts,271			name,272			type,273			instance_url,274			api_url,275			application_id,276			secret277		FROM vcs278		WHERE `+strings.Join(where, " AND "),279		args...,280	)281	if err != nil {282		return nil, FormatError(err)283	}284	defer rows.Close()285	// Iterate over result set and deserialize rows into list.286	var list []*vcsRaw287	for rows.Next() {288		var vcs vcsRaw289		if err := rows.Scan(290			&vcs.ID,291			&vcs.CreatorID,292			&vcs.CreatedTs,293			&vcs.UpdaterID,294			&vcs.UpdatedTs,295			&vcs.Name,296			&vcs.Type,297			&vcs.InstanceURL,298			&vcs.APIURL,299			&vcs.ApplicationID,300			&vcs.Secret,301		); err != nil {302			return nil, FormatError(err)303		}304		list = append(list, &vcs)305	}306	if err := rows.Err(); err != nil {307		return nil, FormatError(err)308	}309	return list, nil310}311// patchVCSImpl updates a vcs by ID. Returns the new state of the vcs after update.312func patchVCSImpl(ctx context.Context, tx *Tx, patch *api.VCSPatch) (*vcsRaw, error) {313	// Build UPDATE clause.314	set, args := []string{"updater_id = $1"}, []interface{}{patch.UpdaterID}315	if v := patch.Name; v != nil {316		set, args = append(set, fmt.Sprintf("name = $%d", len(args)+1)), append(args, *v)317	}318	if v := patch.ApplicationID; v != nil {319		set, args = append(set, fmt.Sprintf("application_id = $%d", len(args)+1)), append(args, *v)320	}321	if v := patch.Secret; v != nil {322		set, args = append(set, fmt.Sprintf("secret = $%d", len(args)+1)), append(args, *v)323	}324	args = append(args, patch.ID)325	var vcs vcsRaw326	// Execute update query with RETURNING....

snapshots.go

Source:snapshots.go

...17	revertCommitHeadBase *[2]*string18	commitMessage        string19}20type SnapshotOption func(*SnapshotOptions)21func WithPatchIDsFilter(patchIDs []string) SnapshotOption {22	return func(opts *SnapshotOptions) {23		if opts.patchIDsFilter == nil {24			opts.patchIDsFilter = new([]string)25		}26		*opts.patchIDsFilter = append(*opts.patchIDsFilter, patchIDs...)27	}28}29func WithRevert(head string, base *string) SnapshotOption {30	return func(opts *SnapshotOptions) {31		opts.revertCommitHeadBase = &[2]*string{&head, base}32	}33}34func WithCommitMessage(msg string) SnapshotOption {35	return func(opts *SnapshotOptions) {36		opts.commitMessage = msg37	}38}39func snapshotOptions(opts ...SnapshotOption) *SnapshotOptions {40	options := &SnapshotOptions{}41	for _, applyOption := range opts {42		applyOption(options)43	}44	return options45}46func snapshotPatchIDs(logger *zap.Logger, repo vcs.RepoGitReader, options *SnapshotOptions) ([]string, error) {47	if options.patchIDsFilter != nil {48		return *options.patchIDsFilter, nil49	}50	return allPatchIDs(logger, repo)51}52func allPatchIDs(logger *zap.Logger, repo vcs.RepoGitReader) ([]string, error) {53	diffs, err := repo.CurrentDiffNoIndex()54	if err != nil {55		return nil, fmt.Errorf("failed to get current diff: %w", err)56	}57	defer diffs.Free()58	differ := unidiff.NewUnidiff(unidiff.NewGitPatchReader(diffs), logger).WithExpandedHunks()59	fileDiffs, err := differ.Decorate()60	if err != nil {61		return nil, fmt.Errorf("failed to build diffs: %w", err)62	}63	var patchIDs []string64	for _, d := range fileDiffs {65		for _, h := range d.Hunks {66			patchIDs = append(patchIDs, h.ID)67		}68	}69	return patchIDs, nil70}71func SnapshotOnViewRepo(ctx context.Context, logger *zap.Logger, repo vcs.RepoReaderGitWriter, codebaseID codebases.ID, snapshotID snapshots.ID, signature git.Signature, opts ...SnapshotOption) (string, error) {72	start := time.Now()73	options := snapshotOptions(opts...)74	if snapshotID == "" {75		return "", errors.New("snapshotID is not set")76	}77	if options.revertCommitHeadBase != nil {78		return "", errors.New("expected revertCommitID to be nul, was set")79	}80	decoratedLogger := logger.With(81		zap.String("codebase_id", codebaseID.String()),82		zap.Stringer("snapshot_id", snapshotID),83		zap.String("repo_path", repo.Path()),84	)85	preCommit, err := repo.HeadCommit()86	if err != nil {87		return "", fmt.Errorf("failed to find current head: %w", err)88	}89	defer preCommit.Free()90	patchIDs, err := snapshotPatchIDs(decoratedLogger, repo, options)91	if err != nil {92		return "", err93	}94	var snapshotCommitID string95	decoratedLogger.Info("creating snapshot", zap.Int("patch_count", len(patchIDs)))96	commitMessage := fmt.Sprintf("snapshot-%d", time.Now().Unix())97	if options.commitMessage != "" {98		commitMessage = options.commitMessage99	}100	// If no patches are specified, create a snapshot of the entire view ("git add -a")101	if len(patchIDs) == 0 {102		snapshotCommitID, err = repo.AddAndCommitWithSignature(commitMessage, signature)103	} else {104		snapshotCommitID, err = vcs_change.CreateChangeFromPatchesOnRepo(ctx, decoratedLogger, repo, codebaseID, patchIDs, commitMessage, signature)105	}106	if err != nil {107		return "", fmt.Errorf("failed to make snapshot: %w", err)108	}109	decoratedLogger.Info("snapshot creation duration", zap.Duration("duration", time.Since(start)))110	err = repo.ResetMixed(preCommit.Id().String())111	if err != nil {112		return "", fmt.Errorf("failed to restore to workspace: %w", err)113	}114	// Push to upstream115	branchName := branchName(snapshotID)116	if err := repo.CreateNewBranchAt(branchName, snapshotCommitID); err != nil {117		return "", fmt.Errorf("failed to create branch at snapshot branchName=%s snapshotCommitID=%s: %w", branchName, snapshotCommitID, err)118	}119	if err := repo.Push(decoratedLogger, branchName); err != nil {120		return "", fmt.Errorf("failed to push snapshot branch branchName=%s snapshotCommitID=%s: %w", branchName, snapshotCommitID, err)121	}122	return snapshotCommitID, nil123}124func SnapshotOnViewRepoWithRevert(repo vcs.RepoWriter, logger *zap.Logger, snapshotID snapshots.ID, opts ...SnapshotOption) (string, error) {125	if snapshotID == "" {126		return "", errors.New("snapshotID is not set")127	}128	options := snapshotOptions(opts...)129	if options.revertCommitHeadBase == nil {130		return "", errors.New("expected revertCommitID to be set, got null")131	}132	hb := *options.revertCommitHeadBase133	// hb[0] is the "head" the change that's going to be the new base of the workspace134	// hb[1] is the "base" (the parent change of the "head") and is optional. If it's nil, diff against the root of the codebase.135	if hb[0] == nil {136		return "", errors.New("revertCommitHeadBase[0] (the head) is nil")137	}138	head := *hb[0]139	base := hb[1]140	if err := repo.CreateAndCheckoutBranchAtCommit(head, fmt.Sprintf("snapshot-pre-revert-%s", snapshotID)); err != nil {141		return "", fmt.Errorf("failed to create pre-revert branch: %w", err)142	}143	var diff *git.Diff144	var err error145	if base == nil {146		diff, err = repo.DiffRootToCommit(head)147	} else {148		diff, err = repo.DiffCommits(head, *base)149	}150	if err != nil {151		return "", fmt.Errorf("failed to create reversed diff: %w", err)152	}153	patches, err := unidiff.NewUnidiff(unidiff.NewGitPatchReader(diff), logger).PatchesBytes()154	if err != nil {155		return "", fmt.Errorf("failed to get patches: %w", err)156	}157	if err := repo.ApplyPatchesToWorkdir(patches); err != nil {158		return "", fmt.Errorf("failed to apply patches: %w", err)159	}160	snapshotCommitID, err := repo.AddAndCommit(fmt.Sprintf("snapshot-%d", time.Now().Unix()))161	if err != nil {162		return "", fmt.Errorf("failed to commit snapshot: %w", err)163	}164	err = repo.ResetMixed(*hb[0])165	if err != nil {166		return "", fmt.Errorf("failed to restore to workspace: %w", err)167	}168	branchName := branchName(snapshotID)169	// Push to upstream170	if err := repo.CreateNewBranchAt(branchName, snapshotCommitID); err != nil {171		return "", fmt.Errorf("failed to create branch at snapshot branchName=%s snapshotCommitID=%s: %w", branchName, snapshotCommitID, err)...

remove.go

Source:remove.go

...5	"getsturdy.com/api/pkg/unidiff/lfs"6	"getsturdy.com/api/vcs"7	"go.uber.org/zap"8)9func RemoveWithPatches(logger *zap.Logger, patches [][]byte, patchIDs ...string) func(vcs.RepoWriter) error {10	return func(r vcs.RepoWriter) error {11		return remove(r, logger, unidiff.NewBytesPatchReader(patches), patchIDs...)12	}13}14func Remove(logger *zap.Logger, patchIDs ...string) func(vcs.RepoWriter) error {15	return func(r vcs.RepoWriter) error {16		currentDiff, err := r.CurrentDiff()17		if err != nil {18			return err19		}20		defer currentDiff.Free()21		return remove(r, logger, unidiff.NewGitPatchReader(currentDiff), patchIDs...)22	}23}24func remove(r vcs.RepoWriter, logger *zap.Logger, patchReader unidiff.PatchReader, patchIDs ...string) error {25	lfsFilter, err := lfs.NewIgnoreLfsSmudgedFilter(r)26	if err != nil {27		return err28	}29	binaryDiffs, nonBinaryDiffs, err := unidiff.NewUnidiff(patchReader, logger).30		WithExpandedHunks().31		WithHunksFilter(patchIDs...).32		WithInverter().33		WithFilterFunc(lfsFilter).34		DecorateSeparateBinary()35	if err != nil {36		return err37	}38	var nonBinaryPatches [][]byte39	for _, diff := range nonBinaryDiffs {40		if diff.IsNew || diff.IsDeleted {41			binaryDiffs = append(binaryDiffs, diff)42			continue43		}44		for _, hunk := range diff.Hunks {45			nonBinaryPatches = append(nonBinaryPatches, []byte(hunk.Patch))46		}47	}48	if err := r.ApplyPatchesToWorkdir(nonBinaryPatches); err != nil {49		return fmt.Errorf("failed to add inverted patches: %w", err)50	}51	for _, binDiff := range binaryDiffs {52		// The status has been inverted from what the user is experiencing.53		switch {54		case binDiff.IsDeleted:55			if err := r.CheckoutFile(binDiff.OrigName); err != nil {56				return fmt.Errorf("failed to reset binary file (was deleted): %w", err)57			}58		case binDiff.IsNew:59			if err := r.DeleteFile(binDiff.NewName); err != nil {60				return fmt.Errorf("failed to delete binary file (was new): %w", err)61			}62		case !binDiff.IsNew && !binDiff.IsDeleted && binDiff.OrigName == binDiff.NewName: // modified in-place...

Patch

Using AI Code Generation

1import (2func main() {3    repoRoot, err := vcs.RepoRootForImportPath("code.google.com/p/go.tools", false)4    if err != nil {5        log.Fatal(err)6    }7    repo, err := vcs.NewRepoRoot(repoRoot)8    if err != nil {9        log.Fatal(err)10    }11    err = repo.Patch(os.Stdout, "go.tools", "9b9c7c1d2d01", "HEAD")12    if err != nil {13        log.Fatal(err)14    }15}16@@ -23,7 +23,7 @@ import (

Patch

Using AI Code Generation

1import (2func main() {3    r, err := git.PlainOpen("test")4    if err != nil {5        log.Fatal(err)6    }7    w, err := r.Worktree()8    if err != nil {9        log.Fatal(err)10    }11    err = w.Checkout(&git.CheckoutOptions{12        Hash: plumbing.NewHash("b8e471f58bcbca63b07bda20e428190409c2db47"),13    })14    if err != nil {15        log.Fatal(err)16    }17    patch, err := w.Patch("test.txt")18    if err != nil {19        log.Fatal(err)20    }21    fmt.Println(patch)22}

Patch

Using AI Code Generation

1import (2func main() {3	wd, err := os.Getwd()4	if err != nil {5		log.Fatal(err)6	}7	if err != nil {8		log.Fatal(err)9	}10	if err != nil {11		log.Fatal(err)12	}13	relPath, err := filepath.Rel(repoRootPath, wd)14	if err != nil {15		log.Fatal(err)16	}17	if err != nil {18		log.Fatal(err)19	}20	if err != nil {21		log.Fatal(err)22	}23	if err != nil {24		log.Fatal(err)25	}26	fmt.Printf("Working directory: %s27	fmt.Printf("Working directory as a url: %s28	fmt.Printf("Working directory as a vcs repository: %s29	fmt.Printf("Root path of the repository: %s30	fmt.Printf("Relative path of the current working directory inside

Patch

Using AI Code Generation

1import (2func main() {3    v, err := vcs.NewVCS("git")4    if err != nil {5        fmt.Println(err)6    }7    patches, err := v.Patch("

Patch

Using AI Code Generation

1import (2func main() {3	v := vcs.NewVcs()4	f := vcs.NewFile("file1.txt", "Hello")5	v.AddFile(f)6	f = vcs.NewFile("file2.txt", "World")7	v.AddFile(f)8	f = vcs.NewFile("file3.txt", "!")9	v.AddFile(f)10	f = vcs.NewFile("file4.txt", "!")11	v.AddFile(f)12	f = vcs.NewFile("file5.txt", "!")13	v.AddFile(f)14	f = vcs.NewFile("file6.txt", "!")15	v.AddFile(f)16	f = vcs.NewFile("file7.txt", "!")17	v.AddFile(f)18	f = vcs.NewFile("file8.txt", "!")19	v.AddFile(f)20	f = vcs.NewFile("file9.txt", "!")21	v.AddFile(f)22	f = vcs.NewFile("file10.txt", "!")23	v.AddFile(f)24	f = vcs.NewFile("file11.txt", "!")25	v.AddFile(f)26	f = vcs.NewFile("file12.txt", "!")27	v.AddFile(f)28	f = vcs.NewFile("file13.txt", "!")29	v.AddFile(f)30	f = vcs.NewFile("file14.txt", "!")

Patch

Using AI Code Generation

1import (2func main() {3    r, err := vcs.RepoRootForImportPath("golang.org/x/tools", true)4    if err != nil {5        fmt.Println(err)6    }7    vcs := vcs.ByCmd(r.VCS.Cmd)8    if vcs == nil {9        fmt.Println("vcs not found")10    }11    diff, err := vcs.Patch(r.Repo, "go/vcs/vcs.go", "a9b6e2d6f0e6")12    if err != nil {13        fmt.Println(err)14    }15    fmt.Println(diff)16}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.