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// Copyright 2015 The Gogs Authors. All rights reserved.
// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package git
import (
"bytes"
"io"
"os"
"strings"
"time"
)
// CommitTreeOpts represents the possible options to CommitTree
type CommitTreeOpts struct {
Parents []string
Message string
KeyID string
NoGPGSign bool
AlwaysSign bool
}
// CommitTree creates a commit from a given tree id for the user with provided message
func (repo *Repository) CommitTree(author, committer *Signature, tree *Tree, opts CommitTreeOpts) (ObjectID, error) {
commitTimeStr := time.Now().Format(time.RFC3339)
// Because this may call hooks we should pass in the environment
env := append(os.Environ(),
"GIT_AUTHOR_NAME="+author.Name,
"GIT_AUTHOR_EMAIL="+author.Email,
"GIT_AUTHOR_DATE="+commitTimeStr,
"GIT_COMMITTER_NAME="+committer.Name,
"GIT_COMMITTER_EMAIL="+committer.Email,
"GIT_COMMITTER_DATE="+commitTimeStr,
)
cmd := NewCommand(repo.Ctx, "commit-tree").AddDynamicArguments(tree.ID.String())
for _, parent := range opts.Parents {
cmd.AddArguments("-p").AddDynamicArguments(parent)
}
messageBytes := new(bytes.Buffer)
_, _ = messageBytes.WriteString(opts.Message)
_, _ = messageBytes.WriteString("\n")
if opts.KeyID != "" || opts.AlwaysSign {
cmd.AddOptionFormat("-S%s", opts.KeyID)
}
if opts.NoGPGSign {
cmd.AddArguments("--no-gpg-sign")
}
stdout := new(bytes.Buffer)
stderr := new(bytes.Buffer)
err := cmd.Run(&RunOpts{
Env: env,
Dir: repo.Path,
Stdin: messageBytes,
Stdout: stdout,
Stderr: stderr,
})
if err != nil {
return nil, ConcatenateError(err, stderr.String())
}
return NewIDFromString(strings.TrimSpace(stdout.String()))
}
func (repo *Repository) getTree(id ObjectID) (*Tree, error) {
wr, rd, cancel, err := repo.CatFileBatch(repo.Ctx)
if err != nil {
return nil, err
}
defer cancel()
_, _ = wr.Write([]byte(id.String() + "\n"))
// ignore the SHA
_, typ, size, err := ReadBatchLine(rd)
if err != nil {
return nil, err
}
switch typ {
case "tag":
resolvedID := id
data, err := io.ReadAll(io.LimitReader(rd, size))
if err != nil {
return nil, err
}
tag, err := parseTagData(id.Type(), data)
if err != nil {
return nil, err
}
commit, err := tag.Commit(repo)
if err != nil {
return nil, err
}
commit.Tree.ResolvedID = resolvedID
return &commit.Tree, nil
case "commit":
commit, err := CommitFromReader(repo, id, io.LimitReader(rd, size))
if err != nil {
return nil, err
}
if _, err := rd.Discard(1); err != nil {
return nil, err
}
commit.Tree.ResolvedID = commit.ID
return &commit.Tree, nil
case "tree":
tree := NewTree(repo, id)
tree.ResolvedID = id
objectFormat, err := repo.GetObjectFormat()
if err != nil {
return nil, err
}
tree.entries, err = catBatchParseTreeEntries(objectFormat, tree, rd, size)
if err != nil {
return nil, err
}
tree.entriesParsed = true
return tree, nil
default:
if err := DiscardFull(rd, size+1); err != nil {
return nil, err
}
return nil, ErrNotExist{
ID: id.String(),
}
}
}
// GetTree find the tree object in the repository.
func (repo *Repository) GetTree(idStr string) (*Tree, error) {
objectFormat, err := repo.GetObjectFormat()
if err != nil {
return nil, err
}
if len(idStr) != objectFormat.FullLength() {
res, err := repo.GetRefCommitID(idStr)
if err != nil {
return nil, err
}
if len(res) > 0 {
idStr = res
}
}
id, err := NewIDFromString(idStr)
if err != nil {
return nil, err
}
return repo.getTree(id)
}
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