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git.go
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git.go
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// Copyright 2023 The Falco Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package git
import (
"time"
"github.com/ProtonMail/go-crypto/openpgp"
"github.com/go-git/go-git/v5"
gitplumbing "github.com/go-git/go-git/v5/plumbing"
gitobject "github.com/go-git/go-git/v5/plumbing/object"
"github.com/google/uuid"
"github.com/pkg/errors"
)
func NewEphemeralGitBranch(repo *git.Repository, worktree *git.Worktree) (string, error) {
id := uuid.New()
refName := id.String()
headRef, err := repo.Head()
if err != nil {
return "", errors.Wrap(err, "error getting repository HEAD reference")
}
ref := gitplumbing.NewHashReference(
gitplumbing.NewBranchReferenceName(refName),
headRef.Hash(),
)
if err = repo.Storer.SetReference(ref); err != nil {
return "", errors.Wrap(err, "error setting head git reference")
}
if err = worktree.Checkout(&git.CheckoutOptions{
Branch: gitplumbing.NewBranchReferenceName(refName),
}); err != nil {
return "", errors.Wrap(err, "error checking out just created branch")
}
return refName, nil
}
func StageAndCommit(repo *git.Repository, worktree *git.Worktree, author *gitobject.Signature,
pgpEntity *openpgp.Entity, stagePath, commitMessage string,
) error {
if worktree == nil {
return errors.New("worktree cannot be empty")
}
// Stage the updated orgs config file to the index.
if _, err := worktree.Add(stagePath); err != nil {
return errors.Wrap(err, "error staging orgs config file")
}
if author == nil {
return errors.New("git author cannot be empty")
}
commit, err := worktree.Commit(commitMessage, &git.CommitOptions{
Author: &gitobject.Signature{
Name: author.Name,
Email: author.Email,
When: time.Now(),
},
SignKey: pgpEntity,
})
if err != nil {
return errors.Wrap(err, "error creating orgs config update git commitAll")
}
// Create a commit.
_, err = repo.CommitObject(commit)
if err != nil {
return errors.Wrap(err, "error retrieving the orgs config update commitAll hash")
}
return nil
}