dehub/diff.go
mediocregopher 7c891bd5f2 Initial commit, can create master commit and verify previous master commits
message: Initial commit, can create master commit and verify previous master commits
change_hash: ADgeVBdfi1hA0TTDrBIkYHaQQYoxZaInZz1p/BAH35Ng
credentials:
- type: pgp_signature
  pub_key_id: 95C46FA6A41148AC
  body: 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
  account: mediocregopher
2020-02-15 15:13:50 -07:00

42 lines
1.1 KiB
Go

package dehub
import (
"fmt"
"gopkg.in/src-d/go-git.v4/plumbing"
"gopkg.in/src-d/go-git.v4/plumbing/filemode"
"gopkg.in/src-d/go-git.v4/plumbing/object"
)
type fileChanged struct {
path string
fromMode, toMode filemode.FileMode
fromHash, toHash plumbing.Hash
}
func calcDiff(from, to *object.Tree) ([]fileChanged, error) {
changes, err := object.DiffTree(from, to)
if err != nil {
return nil, fmt.Errorf("could not calculate tree diff: %w", err)
}
filesChanged := make([]fileChanged, len(changes))
for i, change := range changes {
if from := change.From; from.Name != "" {
filesChanged[i].path = from.Name
filesChanged[i].fromMode = from.TreeEntry.Mode
filesChanged[i].fromHash = from.TreeEntry.Hash
}
if to := change.To; to.Name != "" {
if exPath := filesChanged[i].path; exPath != "" && exPath != to.Name {
panic(fmt.Sprintf("DiffTree entry changed path from %q to %q", exPath, to.Name))
}
filesChanged[i].path = to.Name
filesChanged[i].toMode = to.TreeEntry.Mode
filesChanged[i].toHash = to.TreeEntry.Hash
}
}
return filesChanged, nil
}