dehub/commit_change.go
mediocregopher cf05b3a072 Refactor commit type and logic to account for future commit types
---
type: change
message: |-
  Refactor commit type and logic to account for future commit types

  This commit introduces a CommitInterface which CommitChange (previously
  ChangeCommit) now implements. Additionally, now all commit messages will include
  a type field and a "---" separator. The code is written to still accept all the
  old commit messages used in this repo. Other than those changes, most of this is
  just rearranging existing code.
change_hash: AHjWAUxCjXgOL0Sb+oQZc6TmuVgVHJn08zpGreYyChwx
credentials:
- type: pgp_signature
  pub_key_id: 95C46FA6A41148AC
  body: 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
  account: mediocregopher
2020-03-04 16:34:02 -07:00

65 lines
1.6 KiB
Go

package dehub
import (
"dehub/fs"
"dehub/yamlutil"
"errors"
"strings"
"gopkg.in/src-d/go-git.v4/plumbing"
"gopkg.in/src-d/go-git.v4/plumbing/object"
)
// CommitChange describes the structure of a change commit message.
type CommitChange struct {
Message string `yaml:"message"`
ChangeHash yamlutil.Blob `yaml:"change_hash"`
}
var _ CommitInterface = CommitChange{}
// NewCommitChange constructs a Commit populated with a CommitChange
// encompassing the currently staged file changes. The Credentials of the
// returned Commit will _not_ be filled in.
func (r *Repo) NewCommitChange(msg string) (Commit, error) {
_, headTree, err := r.head()
if errors.Is(err, plumbing.ErrReferenceNotFound) {
headTree = &object.Tree{}
} else if err != nil {
return Commit{}, err
}
_, stagedTree, err := fs.FromStagedChangesTree(r.GitRepo)
if err != nil {
return Commit{}, err
}
cc := CommitChange{Message: msg}
if cc.ChangeHash, err = cc.Hash(headTree, stagedTree); err != nil {
return Commit{}, err
}
return Commit{
Change: &cc,
}, nil
}
// MessageHead implements the method for the CommitInterface interface.
func (cc CommitChange) MessageHead() (string, error) {
i := strings.Index(cc.Message, "\n")
if i > 0 {
return cc.Message[:i], nil
}
return cc.Message, nil
}
// Hash implements the method for the CommitInterface interface.
func (cc CommitChange) Hash(parent, this *object.Tree) ([]byte, error) {
return genChangeHash(nil, cc.Message, parent, this), nil
}
// GetHash implements the method for the CommitInterface interface.
func (cc CommitChange) GetHash() []byte {
return cc.ChangeHash
}