385 lines
12 KiB
Go
385 lines
12 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package repository
|
|
|
|
import (
|
|
"bufio"
|
|
"bytes"
|
|
"context"
|
|
"fmt"
|
|
"os"
|
|
"path"
|
|
"path/filepath"
|
|
"regexp"
|
|
"strings"
|
|
"time"
|
|
|
|
git_model "code.gitea.io/gitea/models/git"
|
|
repo_model "code.gitea.io/gitea/models/repo"
|
|
user_model "code.gitea.io/gitea/models/user"
|
|
"code.gitea.io/gitea/modules/git"
|
|
"code.gitea.io/gitea/modules/gitrepo"
|
|
"code.gitea.io/gitea/modules/log"
|
|
repo_module "code.gitea.io/gitea/modules/repository"
|
|
"code.gitea.io/gitea/modules/util"
|
|
|
|
"github.com/gobwas/glob"
|
|
"github.com/huandu/xstrings"
|
|
)
|
|
|
|
type transformer struct {
|
|
Name string
|
|
Transform func(string) string
|
|
}
|
|
|
|
type expansion struct {
|
|
Name string
|
|
Value string
|
|
Transformers []transformer
|
|
}
|
|
|
|
var defaultTransformers = []transformer{
|
|
{Name: "SNAKE", Transform: xstrings.ToSnakeCase},
|
|
{Name: "KEBAB", Transform: xstrings.ToKebabCase},
|
|
// as of xstrings v1.5.0 the CAMEL & PASCAL workarounds are no longer necessary
|
|
// and can be removed https://codeberg.org/forgejo/forgejo/pulls/4050
|
|
{Name: "CAMEL", Transform: func(str string) string {
|
|
return xstrings.FirstRuneToLower(xstrings.ToCamelCase(str))
|
|
}},
|
|
{Name: "PASCAL", Transform: xstrings.ToCamelCase},
|
|
{Name: "LOWER", Transform: strings.ToLower},
|
|
{Name: "UPPER", Transform: strings.ToUpper},
|
|
{Name: "TITLE", Transform: util.ToTitleCase},
|
|
}
|
|
|
|
func generateExpansion(src string, templateRepo, generateRepo *repo_model.Repository, sanitizeFileName bool) string {
|
|
expansions := []expansion{
|
|
{Name: "REPO_NAME", Value: generateRepo.Name, Transformers: defaultTransformers},
|
|
{Name: "TEMPLATE_NAME", Value: templateRepo.Name, Transformers: defaultTransformers},
|
|
{Name: "REPO_DESCRIPTION", Value: generateRepo.Description, Transformers: nil},
|
|
{Name: "TEMPLATE_DESCRIPTION", Value: templateRepo.Description, Transformers: nil},
|
|
{Name: "REPO_OWNER", Value: generateRepo.OwnerName, Transformers: defaultTransformers},
|
|
{Name: "TEMPLATE_OWNER", Value: templateRepo.OwnerName, Transformers: defaultTransformers},
|
|
{Name: "REPO_LINK", Value: generateRepo.Link(), Transformers: nil},
|
|
{Name: "TEMPLATE_LINK", Value: templateRepo.Link(), Transformers: nil},
|
|
{Name: "REPO_HTTPS_URL", Value: generateRepo.CloneLink().HTTPS, Transformers: nil},
|
|
{Name: "TEMPLATE_HTTPS_URL", Value: templateRepo.CloneLink().HTTPS, Transformers: nil},
|
|
{Name: "REPO_SSH_URL", Value: generateRepo.CloneLink().SSH, Transformers: nil},
|
|
{Name: "TEMPLATE_SSH_URL", Value: templateRepo.CloneLink().SSH, Transformers: nil},
|
|
}
|
|
|
|
expansionMap := make(map[string]string)
|
|
for _, e := range expansions {
|
|
expansionMap[e.Name] = e.Value
|
|
for _, tr := range e.Transformers {
|
|
expansionMap[fmt.Sprintf("%s_%s", e.Name, tr.Name)] = tr.Transform(e.Value)
|
|
}
|
|
}
|
|
|
|
return os.Expand(src, func(key string) string {
|
|
if expansion, ok := expansionMap[key]; ok {
|
|
if sanitizeFileName {
|
|
return fileNameSanitize(expansion)
|
|
}
|
|
return expansion
|
|
}
|
|
return key
|
|
})
|
|
}
|
|
|
|
// GiteaTemplate holds information about a .gitea/template file
|
|
type GiteaTemplate struct {
|
|
Path string
|
|
Content []byte
|
|
|
|
globs []glob.Glob
|
|
}
|
|
|
|
// Globs parses the .gitea/template globs or returns them if they were already parsed
|
|
func (gt *GiteaTemplate) Globs() []glob.Glob {
|
|
if gt.globs != nil {
|
|
return gt.globs
|
|
}
|
|
|
|
gt.globs = make([]glob.Glob, 0)
|
|
scanner := bufio.NewScanner(bytes.NewReader(gt.Content))
|
|
for scanner.Scan() {
|
|
line := strings.TrimSpace(scanner.Text())
|
|
if line == "" || strings.HasPrefix(line, "#") {
|
|
continue
|
|
}
|
|
g, err := glob.Compile(line, '/')
|
|
if err != nil {
|
|
log.Info("Invalid glob expression '%s' (skipped): %v", line, err)
|
|
continue
|
|
}
|
|
gt.globs = append(gt.globs, g)
|
|
}
|
|
return gt.globs
|
|
}
|
|
|
|
func checkGiteaTemplate(tmpDir string) (*GiteaTemplate, error) {
|
|
gtPath := filepath.Join(tmpDir, ".gitea", "template")
|
|
if _, err := os.Stat(gtPath); os.IsNotExist(err) {
|
|
return nil, nil
|
|
} else if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
content, err := os.ReadFile(gtPath)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
gt := &GiteaTemplate{
|
|
Path: gtPath,
|
|
Content: content,
|
|
}
|
|
|
|
return gt, nil
|
|
}
|
|
|
|
func generateRepoCommit(ctx context.Context, repo, templateRepo, generateRepo *repo_model.Repository, tmpDir string) error {
|
|
commitTimeStr := time.Now().Format(time.RFC3339)
|
|
authorSig := repo.Owner.NewGitSig()
|
|
|
|
// Because this may call hooks we should pass in the environment
|
|
env := append(os.Environ(),
|
|
"GIT_AUTHOR_NAME="+authorSig.Name,
|
|
"GIT_AUTHOR_EMAIL="+authorSig.Email,
|
|
"GIT_AUTHOR_DATE="+commitTimeStr,
|
|
"GIT_COMMITTER_NAME="+authorSig.Name,
|
|
"GIT_COMMITTER_EMAIL="+authorSig.Email,
|
|
"GIT_COMMITTER_DATE="+commitTimeStr,
|
|
)
|
|
|
|
// Clone to temporary path and do the init commit.
|
|
templateRepoPath := templateRepo.RepoPath()
|
|
if err := git.Clone(ctx, templateRepoPath, tmpDir, git.CloneRepoOptions{
|
|
Depth: 1,
|
|
Branch: templateRepo.DefaultBranch,
|
|
}); err != nil {
|
|
return fmt.Errorf("git clone: %w", err)
|
|
}
|
|
|
|
if err := util.RemoveAll(path.Join(tmpDir, ".git")); err != nil {
|
|
return fmt.Errorf("remove git dir: %w", err)
|
|
}
|
|
|
|
// Variable expansion
|
|
gt, err := checkGiteaTemplate(tmpDir)
|
|
if err != nil {
|
|
return fmt.Errorf("checkGiteaTemplate: %w", err)
|
|
}
|
|
|
|
if gt != nil {
|
|
if err := util.Remove(gt.Path); err != nil {
|
|
return fmt.Errorf("remove .giteatemplate: %w", err)
|
|
}
|
|
|
|
// Avoid walking tree if there are no globs
|
|
if len(gt.Globs()) > 0 {
|
|
tmpDirSlash := strings.TrimSuffix(filepath.ToSlash(tmpDir), "/") + "/"
|
|
if err := filepath.WalkDir(tmpDirSlash, func(path string, d os.DirEntry, walkErr error) error {
|
|
if walkErr != nil {
|
|
return walkErr
|
|
}
|
|
|
|
if d.IsDir() {
|
|
return nil
|
|
}
|
|
|
|
base := strings.TrimPrefix(filepath.ToSlash(path), tmpDirSlash)
|
|
for _, g := range gt.Globs() {
|
|
if g.Match(base) {
|
|
content, err := os.ReadFile(path)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := os.WriteFile(path,
|
|
[]byte(generateExpansion(string(content), templateRepo, generateRepo, false)),
|
|
0o644); err != nil {
|
|
return err
|
|
}
|
|
|
|
substPath := filepath.FromSlash(filepath.Join(tmpDirSlash,
|
|
generateExpansion(base, templateRepo, generateRepo, true)))
|
|
|
|
// Create parent subdirectories if needed or continue silently if it exists
|
|
if err := os.MkdirAll(filepath.Dir(substPath), 0o755); err != nil {
|
|
return err
|
|
}
|
|
|
|
// Substitute filename variables
|
|
if err := os.Rename(path, substPath); err != nil {
|
|
return err
|
|
}
|
|
|
|
break
|
|
}
|
|
}
|
|
return nil
|
|
}); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
|
|
if err := git.InitRepository(ctx, tmpDir, false, templateRepo.ObjectFormatName); err != nil {
|
|
return err
|
|
}
|
|
|
|
repoPath := repo.RepoPath()
|
|
if stdout, _, err := git.NewCommand(ctx, "remote", "add", "origin").AddDynamicArguments(repoPath).
|
|
SetDescription(fmt.Sprintf("generateRepoCommit (git remote add): %s to %s", templateRepoPath, tmpDir)).
|
|
RunStdString(&git.RunOpts{Dir: tmpDir, Env: env}); err != nil {
|
|
log.Error("Unable to add %v as remote origin to temporary repo to %s: stdout %s\nError: %v", repo, tmpDir, stdout, err)
|
|
return fmt.Errorf("git remote add: %w", err)
|
|
}
|
|
|
|
// set default branch based on whether it's specified in the newly generated repo or not
|
|
defaultBranch := repo.DefaultBranch
|
|
if strings.TrimSpace(defaultBranch) == "" {
|
|
defaultBranch = templateRepo.DefaultBranch
|
|
}
|
|
|
|
return initRepoCommit(ctx, tmpDir, repo, repo.Owner, defaultBranch)
|
|
}
|
|
|
|
func generateGitContent(ctx context.Context, repo, templateRepo, generateRepo *repo_model.Repository) (err error) {
|
|
tmpDir, err := os.MkdirTemp(os.TempDir(), "gitea-"+repo.Name)
|
|
if err != nil {
|
|
return fmt.Errorf("Failed to create temp dir for repository %s: %w", repo.RepoPath(), err)
|
|
}
|
|
|
|
defer func() {
|
|
if err := util.RemoveAll(tmpDir); err != nil {
|
|
log.Error("RemoveAll: %v", err)
|
|
}
|
|
}()
|
|
|
|
if err = generateRepoCommit(ctx, repo, templateRepo, generateRepo, tmpDir); err != nil {
|
|
return fmt.Errorf("generateRepoCommit: %w", err)
|
|
}
|
|
|
|
// re-fetch repo
|
|
if repo, err = repo_model.GetRepositoryByID(ctx, repo.ID); err != nil {
|
|
return fmt.Errorf("getRepositoryByID: %w", err)
|
|
}
|
|
|
|
// if there was no default branch supplied when generating the repo, use the default one from the template
|
|
if strings.TrimSpace(repo.DefaultBranch) == "" {
|
|
repo.DefaultBranch = templateRepo.DefaultBranch
|
|
}
|
|
|
|
if err = gitrepo.SetDefaultBranch(ctx, repo, repo.DefaultBranch); err != nil {
|
|
return fmt.Errorf("setDefaultBranch: %w", err)
|
|
}
|
|
if err = UpdateRepository(ctx, repo, false); err != nil {
|
|
return fmt.Errorf("updateRepository: %w", err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// GenerateGitContent generates git content from a template repository
|
|
func GenerateGitContent(ctx context.Context, templateRepo, generateRepo *repo_model.Repository) error {
|
|
if err := generateGitContent(ctx, generateRepo, templateRepo, generateRepo); err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := repo_module.UpdateRepoSize(ctx, generateRepo); err != nil {
|
|
return fmt.Errorf("failed to update size for repository: %w", err)
|
|
}
|
|
|
|
if err := git_model.CopyLFS(ctx, generateRepo, templateRepo); err != nil {
|
|
return fmt.Errorf("failed to copy LFS: %w", err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// GenerateRepoOptions contains the template units to generate
|
|
type GenerateRepoOptions struct {
|
|
Name string
|
|
DefaultBranch string
|
|
Description string
|
|
Private bool
|
|
GitContent bool
|
|
Topics bool
|
|
GitHooks bool
|
|
Webhooks bool
|
|
Avatar bool
|
|
IssueLabels bool
|
|
ProtectedBranch bool
|
|
}
|
|
|
|
// IsValid checks whether at least one option is chosen for generation
|
|
func (gro GenerateRepoOptions) IsValid() bool {
|
|
return gro.GitContent || gro.Topics || gro.GitHooks || gro.Webhooks || gro.Avatar ||
|
|
gro.IssueLabels || gro.ProtectedBranch // or other items as they are added
|
|
}
|
|
|
|
// generateRepository generates a repository from a template
|
|
func generateRepository(ctx context.Context, doer, owner *user_model.User, templateRepo *repo_model.Repository, opts GenerateRepoOptions) (_ *repo_model.Repository, err error) {
|
|
generateRepo := &repo_model.Repository{
|
|
OwnerID: owner.ID,
|
|
Owner: owner,
|
|
OwnerName: owner.Name,
|
|
Name: opts.Name,
|
|
LowerName: strings.ToLower(opts.Name),
|
|
Description: opts.Description,
|
|
DefaultBranch: opts.DefaultBranch,
|
|
IsPrivate: opts.Private,
|
|
IsEmpty: !opts.GitContent || templateRepo.IsEmpty,
|
|
IsFsckEnabled: templateRepo.IsFsckEnabled,
|
|
TemplateID: templateRepo.ID,
|
|
TrustModel: templateRepo.TrustModel,
|
|
ObjectFormatName: templateRepo.ObjectFormatName,
|
|
}
|
|
|
|
if err = repo_module.CreateRepositoryByExample(ctx, doer, owner, generateRepo, false, false); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
repoPath := generateRepo.RepoPath()
|
|
isExist, err := util.IsExist(repoPath)
|
|
if err != nil {
|
|
log.Error("Unable to check if %s exists. Error: %v", repoPath, err)
|
|
return nil, err
|
|
}
|
|
if isExist {
|
|
return nil, repo_model.ErrRepoFilesAlreadyExist{
|
|
Uname: generateRepo.OwnerName,
|
|
Name: generateRepo.Name,
|
|
}
|
|
}
|
|
|
|
if err = repo_module.CheckInitRepository(ctx, owner.Name, generateRepo.Name, generateRepo.ObjectFormatName); err != nil {
|
|
return generateRepo, err
|
|
}
|
|
|
|
if err = repo_module.CheckDaemonExportOK(ctx, generateRepo); err != nil {
|
|
return generateRepo, fmt.Errorf("checkDaemonExportOK: %w", err)
|
|
}
|
|
|
|
if stdout, _, err := git.NewCommand(ctx, "update-server-info").
|
|
SetDescription(fmt.Sprintf("GenerateRepository(git update-server-info): %s", repoPath)).
|
|
RunStdString(&git.RunOpts{Dir: repoPath}); err != nil {
|
|
log.Error("GenerateRepository(git update-server-info) in %v: Stdout: %s\nError: %v", generateRepo, stdout, err)
|
|
return generateRepo, fmt.Errorf("error in GenerateRepository(git update-server-info): %w", err)
|
|
}
|
|
|
|
return generateRepo, nil
|
|
}
|
|
|
|
var fileNameSanitizeRegexp = regexp.MustCompile(`(?i)\.\.|[<>:\"/\\|?*\x{0000}-\x{001F}]|^(con|prn|aux|nul|com\d|lpt\d)$`)
|
|
|
|
// Sanitize user input to valid OS filenames
|
|
//
|
|
// Based on https://github.com/sindresorhus/filename-reserved-regex
|
|
// Adds ".." to prevent directory traversal
|
|
func fileNameSanitize(s string) string {
|
|
return strings.TrimSpace(fileNameSanitizeRegexp.ReplaceAllString(s, "_"))
|
|
}
|