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// Copyright 2013 The go-github AUTHORS. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package github
import (
"context"
"encoding/json"
"fmt"
)
// Tree represents a GitHub tree.
type Tree struct {
SHA *string `json:"sha,omitempty"`
Entries []*TreeEntry `json:"tree,omitempty"`
// Truncated is true if the number of items in the tree
// exceeded GitHub's maximum limit and the Entries were truncated
// in the response. Only populated for requests that fetch
// trees like Git.GetTree.
Truncated *bool `json:"truncated,omitempty"`
}
func (t Tree) String() string {
return Stringify(t)
}
// TreeEntry represents the contents of a tree structure. TreeEntry can
// represent either a blob, a commit (in the case of a submodule), or another
// tree.
type TreeEntry struct {
SHA *string `json:"sha,omitempty"`
Path *string `json:"path,omitempty"`
Mode *string `json:"mode,omitempty"`
Type *string `json:"type,omitempty"`
Size *int `json:"size,omitempty"`
Content *string `json:"content,omitempty"`
URL *string `json:"url,omitempty"`
}
func (t TreeEntry) String() string {
return Stringify(t)
}
// treeEntryWithFileDelete is used internally to delete a file whose
// Content and SHA fields are empty. It does this by removing the "omitempty"
// tag modifier on the SHA field which causes the GitHub API to receive
// {"sha":null} and thereby delete the file.
type treeEntryWithFileDelete struct {
SHA *string `json:"sha"`
Path *string `json:"path,omitempty"`
Mode *string `json:"mode,omitempty"`
Type *string `json:"type,omitempty"`
Size *int `json:"size,omitempty"`
Content *string `json:"content,omitempty"`
URL *string `json:"url,omitempty"`
}
func (t *TreeEntry) MarshalJSON() ([]byte, error) {
if t.SHA == nil && t.Content == nil {
return json.Marshal(struct {
SHA *string `json:"sha"`
Path *string `json:"path,omitempty"`
Mode *string `json:"mode,omitempty"`
Type *string `json:"type,omitempty"`
}{
nil,
t.Path,
t.Mode,
t.Type,
})
}
return json.Marshal(struct {
SHA *string `json:"sha,omitempty"`
Path *string `json:"path,omitempty"`
Mode *string `json:"mode,omitempty"`
Type *string `json:"type,omitempty"`
Size *int `json:"size,omitempty"`
Content *string `json:"content,omitempty"`
URL *string `json:"url,omitempty"`
}{
SHA: t.SHA,
Path: t.Path,
Mode: t.Mode,
Type: t.Type,
Size: t.Size,
Content: t.Content,
URL: t.URL,
})
}
// GetTree fetches the Tree object for a given sha hash from a repository.
//
// GitHub API docs: https://docs.github.com/rest/git/trees#get-a-tree
//
//meta:operation GET /repos/{owner}/{repo}/git/trees/{tree_sha}
func (s *GitService) GetTree(ctx context.Context, owner string, repo string, sha string, recursive bool) (*Tree, *Response, error) {
u := fmt.Sprintf("repos/%v/%v/git/trees/%v", owner, repo, sha)
if recursive {
u += "?recursive=1"
}
req, err := s.client.NewRequest("GET", u, nil)
if err != nil {
return nil, nil, err
}
t := new(Tree)
resp, err := s.client.Do(ctx, req, t)
if err != nil {
return nil, resp, err
}
return t, resp, nil
}
// createTree represents the body of a CreateTree request.
type createTree struct {
BaseTree string `json:"base_tree,omitempty"`
Entries []interface{} `json:"tree"`
}
// CreateTree creates a new tree in a repository. If both a tree and a nested
// path modifying that tree are specified, it will overwrite the contents of
// that tree with the new path contents and write a new tree out.
//
// GitHub API docs: https://docs.github.com/rest/git/trees#create-a-tree
//
//meta:operation POST /repos/{owner}/{repo}/git/trees
func (s *GitService) CreateTree(ctx context.Context, owner string, repo string, baseTree string, entries []*TreeEntry) (*Tree, *Response, error) {
u := fmt.Sprintf("repos/%v/%v/git/trees", owner, repo)
newEntries := make([]interface{}, 0, len(entries))
for _, entry := range entries {
if entry.Content == nil && entry.SHA == nil {
newEntries = append(newEntries, treeEntryWithFileDelete{
Path: entry.Path,
Mode: entry.Mode,
Type: entry.Type,
Size: entry.Size,
URL: entry.URL,
})
continue
}
newEntries = append(newEntries, entry)
}
body := &createTree{
BaseTree: baseTree,
Entries: newEntries,
}
req, err := s.client.NewRequest("POST", u, body)
if err != nil {
return nil, nil, err
}
t := new(Tree)
resp, err := s.client.Do(ctx, req, t)
if err != nil {
return nil, resp, err
}
return t, resp, nil
}
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