gitea/modules/repository/generate.go

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// Copyright 2019 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package repository
import (
"fmt"
"io/ioutil"
"os"
"path"
"path/filepath"
"strings"
"time"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/util"
"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},
{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: strings.Title},
}
func generateExpansion(src string, templateRepo, generateRepo *models.Repository) 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},
}
var 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 {
return expansion
}
return key
})
}
func checkGiteaTemplate(tmpDir string) (*models.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 := ioutil.ReadFile(gtPath)
if err != nil {
return nil, err
}
gt := &models.GiteaTemplate{
Path: gtPath,
Content: content,
}
return gt, nil
}
func generateRepoCommit(repo, templateRepo, generateRepo *models.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(templateRepoPath, tmpDir, git.CloneRepoOptions{
Depth: 1,
Branch: templateRepo.DefaultBranch,
}); err != nil {
return fmt.Errorf("git clone: %v", err)
}
if err := util.RemoveAll(path.Join(tmpDir, ".git")); err != nil {
return fmt.Errorf("remove git dir: %v", err)
}
// Variable expansion
gt, err := checkGiteaTemplate(tmpDir)
if err != nil {
return fmt.Errorf("checkGiteaTemplate: %v", err)
}
if gt != nil {
if err := util.Remove(gt.Path); err != nil {
return fmt.Errorf("remove .giteatemplate: %v", err)
}
// Avoid walking tree if there are no globs
if len(gt.Globs()) > 0 {
tmpDirSlash := strings.TrimSuffix(filepath.ToSlash(tmpDir), "/") + "/"
if err := filepath.Walk(tmpDirSlash, func(path string, info os.FileInfo, walkErr error) error {
if walkErr != nil {
return walkErr
}
if info.IsDir() {
return nil
}
base := strings.TrimPrefix(filepath.ToSlash(path), tmpDirSlash)
for _, g := range gt.Globs() {
if g.Match(base) {
content, err := ioutil.ReadFile(path)
if err != nil {
return err
}
if err := ioutil.WriteFile(path,
[]byte(generateExpansion(string(content), templateRepo, generateRepo)),
0644); err != nil {
return err
}
break
}
}
return nil
}); err != nil {
return err
}
}
}
if err := git.InitRepository(tmpDir, false); err != nil {
return err
}
repoPath := repo.RepoPath()
if stdout, err := git.NewCommand("remote", "add", "origin", repoPath).
SetDescription(fmt.Sprintf("generateRepoCommit (git remote add): %s to %s", templateRepoPath, tmpDir)).
RunInDirWithEnv(tmpDir, 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: %v", err)
}
return initRepoCommit(tmpDir, repo, repo.Owner, templateRepo.DefaultBranch)
}
func generateGitContent(ctx models.DBContext, repo, templateRepo, generateRepo *models.Repository) (err error) {
tmpDir, err := ioutil.TempDir(os.TempDir(), "gitea-"+repo.Name)
if err != nil {
return fmt.Errorf("Failed to create temp dir for repository %s: %v", repo.RepoPath(), err)
}
defer func() {
if err := util.RemoveAll(tmpDir); err != nil {
log.Error("RemoveAll: %v", err)
}
}()
if err = generateRepoCommit(repo, templateRepo, generateRepo, tmpDir); err != nil {
return fmt.Errorf("generateRepoCommit: %v", err)
}
// re-fetch repo
if repo, err = models.GetRepositoryByIDCtx(ctx, repo.ID); err != nil {
return fmt.Errorf("getRepositoryByID: %v", err)
}
repo.DefaultBranch = templateRepo.DefaultBranch
if err = models.UpdateRepositoryCtx(ctx, repo, false); err != nil {
return fmt.Errorf("updateRepository: %v", err)
}
return nil
}
// GenerateGitContent generates git content from a template repository
func GenerateGitContent(ctx models.DBContext, templateRepo, generateRepo *models.Repository) error {
if err := generateGitContent(ctx, generateRepo, templateRepo, generateRepo); err != nil {
return err
}
if err := generateRepo.UpdateSize(ctx); err != nil {
return fmt.Errorf("failed to update size for repository: %v", err)
}
if err := models.CopyLFS(ctx, generateRepo, templateRepo); err != nil {
return fmt.Errorf("failed to copy LFS: %v", err)
}
return nil
}
// GenerateRepository generates a repository from a template
func GenerateRepository(ctx models.DBContext, doer, owner *models.User, templateRepo *models.Repository, opts models.GenerateRepoOptions) (_ *models.Repository, err error) {
generateRepo := &models.Repository{
OwnerID: owner.ID,
Owner: owner,
OwnerName: owner.Name,
Name: opts.Name,
LowerName: strings.ToLower(opts.Name),
Description: opts.Description,
IsPrivate: opts.Private,
IsEmpty: !opts.GitContent || templateRepo.IsEmpty,
IsFsckEnabled: templateRepo.IsFsckEnabled,
TemplateID: templateRepo.ID,
Add configurable Trust Models (#11712) * Add configurable Trust Models Gitea's default signature verification model differs from GitHub. GitHub uses signatures to verify that the committer is who they say they are - meaning that when GitHub makes a signed commit it must be the committer. The GitHub model prevents re-publishing of commits after revocation of a key and prevents re-signing of other people's commits to create a completely trusted repository signed by one key or a set of trusted keys. The default behaviour of Gitea in contrast is to always display the avatar and information related to a signature. This allows signatures to be decoupled from the committer. That being said, allowing arbitary users to present other peoples commits as theirs is not necessarily desired therefore we have a trust model whereby signatures from collaborators are marked trusted, signatures matching the commit line are marked untrusted and signatures that match a user in the db but not the committer line are marked unmatched. The problem with this model is that this conflicts with Github therefore we need to provide an option to allow users to choose the Github model should they wish to. Signed-off-by: Andrew Thornton <art27@cantab.net> * Adjust locale strings Signed-off-by: Andrew Thornton <art27@cantab.net> * as per @6543 Co-authored-by: 6543 <6543@obermui.de> * Update models/gpg_key.go * Add migration for repository Signed-off-by: Andrew Thornton <art27@cantab.net> Co-authored-by: 6543 <6543@obermui.de> Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
2020-09-19 16:44:55 +00:00
TrustModel: templateRepo.TrustModel,
}
if err = models.CreateRepository(ctx, doer, owner, generateRepo); err != nil {
return nil, err
}
repoPath := models.RepoPath(owner.Name, generateRepo.Name)
if err = checkInitRepository(repoPath); err != nil {
return generateRepo, err
}
return generateRepo, nil
}