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// Copyright The gittuf Authors
// SPDX-License-Identifier: Apache-2.0
package gitinterface
import (
"fmt"
"path"
"strings"
"github.com/jonboulle/clockwork"
)
const DefaultRemoteName = "origin"
type FetchOptions struct {
Depth int
}
type FetchOption func(*FetchOptions)
func WithFetchDepth(depth int) FetchOption {
return func(o *FetchOptions) {
o.Depth = depth
}
}
func (r *Repository) PushRefSpec(remoteName string, refSpecs []string) error {
args := []string{"push", remoteName}
args = append(args, refSpecs...)
_, err := r.executor(args...).executeString()
if err != nil {
return fmt.Errorf("unable to push: %w", err)
}
return nil
}
func (r *Repository) Push(remoteName string, refs []string) error {
refSpecs := make([]string, 0, len(refs))
for _, ref := range refs {
refSpec, err := r.RefSpec(ref, "", true)
if err != nil {
return err
}
refSpecs = append(refSpecs, refSpec)
}
return r.PushRefSpec(remoteName, refSpecs)
}
func (r *Repository) FetchRefSpec(remoteName string, refSpecs []string, opts ...FetchOption) error {
options := &FetchOptions{}
for _, fn := range opts {
fn(options)
}
args := []string{"fetch"}
if options.Depth != 0 {
args = append(args, "--depth", fmt.Sprintf("%d", options.Depth))
}
args = append(args, remoteName)
args = append(args, refSpecs...)
_, err := r.executor(args...).executeString()
if err != nil {
return fmt.Errorf("unable to fetch: %w", err)
}
return nil
}
func (r *Repository) Fetch(remoteName string, refs []string, fastForwardOnly bool, opts ...FetchOption) error {
refSpecs := make([]string, 0, len(refs))
for _, ref := range refs {
refSpec, err := r.RefSpec(ref, "", fastForwardOnly)
if err != nil {
return err
}
refSpecs = append(refSpecs, refSpec)
}
return r.FetchRefSpec(remoteName, refSpecs, opts...)
}
func (r *Repository) FetchObject(remoteName string, objectID Hash) error {
args := []string{"fetch", remoteName, objectID.String()}
_, err := r.executor(args...).executeString()
if err != nil {
return fmt.Errorf("unable to fetch object: %w", err)
}
return nil
}
func CloneAndFetchRepository(remoteURL, dir, initialBranch string, refs []string, bare bool) (*Repository, error) {
if dir == "" {
return nil, fmt.Errorf("target directory must be specified")
}
repo := &Repository{clock: clockwork.NewRealClock()}
args := []string{"clone", remoteURL}
if initialBranch != "" {
initialBranch = strings.TrimPrefix(initialBranch, BranchRefPrefix)
args = append(args, "--branch", initialBranch)
}
args = append(args, dir)
if bare {
args = append(args, "--bare")
repo.gitDirPath = dir
} else {
repo.gitDirPath = path.Join(dir, ".git")
}
_, stdErr, err := repo.executor(args...).execute()
if err != nil {
return nil, fmt.Errorf("unable to clone repository: %s", stdErr)
}
return repo, repo.Fetch(DefaultRemoteName, refs, true)
}
func (r *Repository) CreateRemote(remoteName, remoteURL string) error {
_, err := r.executor("remote", "add", remoteName, remoteURL).executeString()
if err != nil {
return fmt.Errorf("unable to add remote: %w", err)
}
return nil
}
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