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package git2go
import (
"context"
"errors"
"fmt"
"time"
"gitlab.com/gitlab-org/gitaly/internal/gitaly/config"
)
var (
// ErrInvalidArgument is returned in case the merge arguments are invalid.
ErrInvalidArgument = errors.New("invalid parameters")
)
// MergeCommand contains parameters to perform a merge.
type MergeCommand struct {
// Repository is the path to execute merge in.
Repository string `json:"repository"`
// AuthorName is the author name of merge commit.
AuthorName string `json:"author_name"`
// AuthorMail is the author mail of merge commit.
AuthorMail string `json:"author_mail"`
// AuthorDate is the auithor date of merge commit.
AuthorDate time.Time `json:"author_date"`
// Message is the message to be used for the merge commit.
Message string `json:"message"`
// Ours is the commit that is to be merged into theirs.
Ours string `json:"ours"`
// Theirs is the commit into which ours is to be merged.
Theirs string `json:"theirs"`
}
// MergeResult contains results from a merge.
type MergeResult struct {
// CommitID is the object ID of the generated merge commit.
CommitID string `json:"commit_id"`
}
// MergeCommandFromSerialized deserializes the merge request from its JSON representation encoded with base64.
func MergeCommandFromSerialized(serialized string) (MergeCommand, error) {
var request MergeCommand
if err := deserialize(serialized, &request); err != nil {
return MergeCommand{}, err
}
if err := request.verify(); err != nil {
return MergeCommand{}, fmt.Errorf("merge: %w: %s", ErrInvalidArgument, err.Error())
}
return request, nil
}
// Serialize serializes the merge response into its JSON representation and encodes it with base64.
func (m MergeResult) Serialize() (string, error) {
return serialize(m)
}
// Merge performs a merge via gitaly-git2go.
func (m MergeCommand) Run(ctx context.Context, cfg config.Cfg) (MergeResult, error) {
if err := m.verify(); err != nil {
return MergeResult{}, fmt.Errorf("merge: %w: %s", ErrInvalidArgument, err.Error())
}
serialized, err := serialize(m)
if err != nil {
return MergeResult{}, err
}
stdout, err := run(ctx, cfg, "merge", serialized)
if err != nil {
return MergeResult{}, err
}
var response MergeResult
if err := deserialize(stdout, &response); err != nil {
return MergeResult{}, err
}
return response, nil
}
func (m MergeCommand) verify() error {
if m.Repository == "" {
return errors.New("missing repository")
}
if m.AuthorName == "" {
return errors.New("missing author name")
}
if m.AuthorMail == "" {
return errors.New("missing author mail")
}
if m.Message == "" {
return errors.New("missing message")
}
if m.Ours == "" {
return errors.New("missing ours")
}
if m.Theirs == "" {
return errors.New("missing theirs")
}
return nil
}
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