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gitea/vendor/github.com/google/go-github/v32/github/repos_contents.go

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Go

// 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.
// Repository contents API methods.
// GitHub API docs: https://developer.github.com/v3/repos/contents/
package github
import (
"context"
"encoding/base64"
"encoding/json"
"errors"
"fmt"
"io"
"net/http"
"net/url"
"path"
)
// RepositoryContent represents a file or directory in a github repository.
type RepositoryContent struct {
Type *string `json:"type,omitempty"`
// Target is only set if the type is "symlink" and the target is not a normal file.
// If Target is set, Path will be the symlink path.
Target *string `json:"target,omitempty"`
Encoding *string `json:"encoding,omitempty"`
Size *int `json:"size,omitempty"`
Name *string `json:"name,omitempty"`
Path *string `json:"path,omitempty"`
// Content contains the actual file content, which may be encoded.
// Callers should call GetContent which will decode the content if
// necessary.
Content *string `json:"content,omitempty"`
SHA *string `json:"sha,omitempty"`
URL *string `json:"url,omitempty"`
GitURL *string `json:"git_url,omitempty"`
HTMLURL *string `json:"html_url,omitempty"`
DownloadURL *string `json:"download_url,omitempty"`
}
// RepositoryContentResponse holds the parsed response from CreateFile, UpdateFile, and DeleteFile.
type RepositoryContentResponse struct {
Content *RepositoryContent `json:"content,omitempty"`
Commit `json:"commit,omitempty"`
}
// RepositoryContentFileOptions specifies optional parameters for CreateFile, UpdateFile, and DeleteFile.
type RepositoryContentFileOptions struct {
Message *string `json:"message,omitempty"`
Content []byte `json:"content,omitempty"` // unencoded
SHA *string `json:"sha,omitempty"`
Branch *string `json:"branch,omitempty"`
Author *CommitAuthor `json:"author,omitempty"`
Committer *CommitAuthor `json:"committer,omitempty"`
}
// RepositoryContentGetOptions represents an optional ref parameter, which can be a SHA,
// branch, or tag
type RepositoryContentGetOptions struct {
Ref string `url:"ref,omitempty"`
}
// String converts RepositoryContent to a string. It's primarily for testing.
func (r RepositoryContent) String() string {
return Stringify(r)
}
// GetContent returns the content of r, decoding it if necessary.
func (r *RepositoryContent) GetContent() (string, error) {
var encoding string
if r.Encoding != nil {
encoding = *r.Encoding
}
switch encoding {
case "base64":
if r.Content == nil {
return "", errors.New("malformed response: base64 encoding of null content")
}
c, err := base64.StdEncoding.DecodeString(*r.Content)
return string(c), err
case "":
if r.Content == nil {
return "", nil
}
return *r.Content, nil
default:
return "", fmt.Errorf("unsupported content encoding: %v", encoding)
}
}
// GetReadme gets the Readme file for the repository.
//
// GitHub API docs: https://developer.github.com/v3/repos/contents/#get-a-repository-readme
func (s *RepositoriesService) GetReadme(ctx context.Context, owner, repo string, opts *RepositoryContentGetOptions) (*RepositoryContent, *Response, error) {
u := fmt.Sprintf("repos/%v/%v/readme", owner, repo)
u, err := addOptions(u, opts)
if err != nil {
return nil, nil, err
}
req, err := s.client.NewRequest("GET", u, nil)
if err != nil {
return nil, nil, err
}
readme := new(RepositoryContent)
resp, err := s.client.Do(ctx, req, readme)
if err != nil {
return nil, resp, err
}
return readme, resp, nil
}
// DownloadContents returns an io.ReadCloser that reads the contents of the
// specified file. This function will work with files of any size, as opposed
// to GetContents which is limited to 1 Mb files. It is the caller's
// responsibility to close the ReadCloser.
func (s *RepositoriesService) DownloadContents(ctx context.Context, owner, repo, filepath string, opts *RepositoryContentGetOptions) (io.ReadCloser, error) {
dir := path.Dir(filepath)
filename := path.Base(filepath)
_, dirContents, _, err := s.GetContents(ctx, owner, repo, dir, opts)
if err != nil {
return nil, err
}
for _, contents := range dirContents {
if *contents.Name == filename {
if contents.DownloadURL == nil || *contents.DownloadURL == "" {
return nil, fmt.Errorf("No download link found for %s", filepath)
}
resp, err := s.client.client.Get(*contents.DownloadURL)
if err != nil {
return nil, err
}
return resp.Body, nil
}
}
return nil, fmt.Errorf("No file named %s found in %s", filename, dir)
}
// GetContents can return either the metadata and content of a single file
// (when path references a file) or the metadata of all the files and/or
// subdirectories of a directory (when path references a directory). To make it
// easy to distinguish between both result types and to mimic the API as much
// as possible, both result types will be returned but only one will contain a
// value and the other will be nil.
//
// GitHub API docs: https://developer.github.com/v3/repos/contents/#get-repository-content
func (s *RepositoriesService) GetContents(ctx context.Context, owner, repo, path string, opts *RepositoryContentGetOptions) (fileContent *RepositoryContent, directoryContent []*RepositoryContent, resp *Response, err error) {
escapedPath := (&url.URL{Path: path}).String()
u := fmt.Sprintf("repos/%s/%s/contents/%s", owner, repo, escapedPath)
u, err = addOptions(u, opts)
if err != nil {
return nil, nil, nil, err
}
req, err := s.client.NewRequest("GET", u, nil)
if err != nil {
return nil, nil, nil, err
}
var rawJSON json.RawMessage
resp, err = s.client.Do(ctx, req, &rawJSON)
if err != nil {
return nil, nil, resp, err
}
fileUnmarshalError := json.Unmarshal(rawJSON, &fileContent)
if fileUnmarshalError == nil {
return fileContent, nil, resp, nil
}
directoryUnmarshalError := json.Unmarshal(rawJSON, &directoryContent)
if directoryUnmarshalError == nil {
return nil, directoryContent, resp, nil
}
return nil, nil, resp, fmt.Errorf("unmarshalling failed for both file and directory content: %s and %s", fileUnmarshalError, directoryUnmarshalError)
}
// CreateFile creates a new file in a repository at the given path and returns
// the commit and file metadata.
//
// GitHub API docs: https://developer.github.com/v3/repos/contents/#create-or-update-file-contents
func (s *RepositoriesService) CreateFile(ctx context.Context, owner, repo, path string, opts *RepositoryContentFileOptions) (*RepositoryContentResponse, *Response, error) {
u := fmt.Sprintf("repos/%s/%s/contents/%s", owner, repo, path)
req, err := s.client.NewRequest("PUT", u, opts)
if err != nil {
return nil, nil, err
}
createResponse := new(RepositoryContentResponse)
resp, err := s.client.Do(ctx, req, createResponse)
if err != nil {
return nil, resp, err
}
return createResponse, resp, nil
}
// UpdateFile updates a file in a repository at the given path and returns the
// commit and file metadata. Requires the blob SHA of the file being updated.
//
// GitHub API docs: https://developer.github.com/v3/repos/contents/#create-or-update-file-contents
func (s *RepositoriesService) UpdateFile(ctx context.Context, owner, repo, path string, opts *RepositoryContentFileOptions) (*RepositoryContentResponse, *Response, error) {
u := fmt.Sprintf("repos/%s/%s/contents/%s", owner, repo, path)
req, err := s.client.NewRequest("PUT", u, opts)
if err != nil {
return nil, nil, err
}
updateResponse := new(RepositoryContentResponse)
resp, err := s.client.Do(ctx, req, updateResponse)
if err != nil {
return nil, resp, err
}
return updateResponse, resp, nil
}
// DeleteFile deletes a file from a repository and returns the commit.
// Requires the blob SHA of the file to be deleted.
//
// GitHub API docs: https://developer.github.com/v3/repos/contents/#delete-a-file
func (s *RepositoriesService) DeleteFile(ctx context.Context, owner, repo, path string, opts *RepositoryContentFileOptions) (*RepositoryContentResponse, *Response, error) {
u := fmt.Sprintf("repos/%s/%s/contents/%s", owner, repo, path)
req, err := s.client.NewRequest("DELETE", u, opts)
if err != nil {
return nil, nil, err
}
deleteResponse := new(RepositoryContentResponse)
resp, err := s.client.Do(ctx, req, deleteResponse)
if err != nil {
return nil, resp, err
}
return deleteResponse, resp, nil
}
// ArchiveFormat is used to define the archive type when calling GetArchiveLink.
type ArchiveFormat string
const (
// Tarball specifies an archive in gzipped tar format.
Tarball ArchiveFormat = "tarball"
// Zipball specifies an archive in zip format.
Zipball ArchiveFormat = "zipball"
)
// GetArchiveLink returns an URL to download a tarball or zipball archive for a
// repository. The archiveFormat can be specified by either the github.Tarball
// or github.Zipball constant.
//
// GitHub API docs: https://developer.github.com/v3/repos/contents/#get-archive-link
func (s *RepositoriesService) GetArchiveLink(ctx context.Context, owner, repo string, archiveformat ArchiveFormat, opts *RepositoryContentGetOptions, followRedirects bool) (*url.URL, *Response, error) {
u := fmt.Sprintf("repos/%s/%s/%s", owner, repo, archiveformat)
if opts != nil && opts.Ref != "" {
u += fmt.Sprintf("/%s", opts.Ref)
}
resp, err := s.getArchiveLinkFromURL(ctx, u, followRedirects)
if err != nil {
return nil, nil, err
}
if resp.StatusCode != http.StatusFound {
return nil, newResponse(resp), fmt.Errorf("unexpected status code: %s", resp.Status)
}
parsedURL, err := url.Parse(resp.Header.Get("Location"))
return parsedURL, newResponse(resp), err
}
func (s *RepositoriesService) getArchiveLinkFromURL(ctx context.Context, u string, followRedirects bool) (*http.Response, error) {
req, err := s.client.NewRequest("GET", u, nil)
if err != nil {
return nil, err
}
var resp *http.Response
// Use http.DefaultTransport if no custom Transport is configured
req = withContext(ctx, req)
if s.client.client.Transport == nil {
resp, err = http.DefaultTransport.RoundTrip(req)
} else {
resp, err = s.client.client.Transport.RoundTrip(req)
}
if err != nil {
return nil, err
}
resp.Body.Close()
// If redirect response is returned, follow it
if followRedirects && resp.StatusCode == http.StatusMovedPermanently {
u = resp.Header.Get("Location")
resp, err = s.getArchiveLinkFromURL(ctx, u, false)
}
return resp, err
}