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gitea/models/repo_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 models
import (
"fmt"
"io/ioutil"
"os"
"path"
"path/filepath"
"strconv"
"strings"
"time"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/util"
"github.com/gobwas/glob"
"github.com/unknwon/com"
)
// GenerateRepoOptions contains the template units to generate
type GenerateRepoOptions struct {
Name string
Description string
Private bool
GitContent bool
Topics bool
GitHooks bool
Webhooks bool
Avatar bool
IssueLabels 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 // or other items as they are added
}
// 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)
lines := strings.Split(string(util.NormalizeEOL(gt.Content)), "\n")
for _, line := range lines {
line = strings.TrimSpace(line)
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 := ioutil.ReadFile(gtPath)
if err != nil {
return nil, err
}
gt := &GiteaTemplate{
Path: gtPath,
Content: content,
}
return gt, nil
}
func generateRepoCommit(e Engine, repo, templateRepo, generateRepo *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(e)
if err := git.Clone(templateRepoPath, tmpDir, git.CloneRepoOptions{
Depth: 1,
}); err != nil {
return fmt.Errorf("git clone: %v", err)
}
if err := os.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 := os.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(e)
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)
}
// generateRepository initializes repository from template
func generateRepository(e Engine, repo, templateRepo, generateRepo *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(e), err)
}
defer func() {
if err := os.RemoveAll(tmpDir); err != nil {
log.Error("RemoveAll: %v", err)
}
}()
if err = generateRepoCommit(e, repo, templateRepo, generateRepo, tmpDir); err != nil {
return fmt.Errorf("generateRepoCommit: %v", err)
}
// re-fetch repo
if repo, err = getRepositoryByID(e, repo.ID); err != nil {
return fmt.Errorf("getRepositoryByID: %v", err)
}
repo.DefaultBranch = "master"
if err = updateRepository(e, repo, false); err != nil {
return fmt.Errorf("updateRepository: %v", err)
}
return nil
}
// GenerateRepository generates a repository from a template
func GenerateRepository(ctx DBContext, doer, owner *User, templateRepo *Repository, opts GenerateRepoOptions) (_ *Repository, err error) {
generateRepo := &Repository{
OwnerID: owner.ID,
Owner: owner,
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,
}
if err = createRepository(ctx.e, doer, owner, generateRepo); err != nil {
return nil, err
}
repoPath := RepoPath(owner.Name, generateRepo.Name)
if err = checkInitRepository(repoPath); err != nil {
return generateRepo, err
}
return generateRepo, nil
}
// GenerateGitContent generates git content from a template repository
func GenerateGitContent(ctx DBContext, templateRepo, generateRepo *Repository) error {
if err := generateRepository(ctx.e, generateRepo, templateRepo, generateRepo); err != nil {
return err
}
if err := generateRepo.updateSize(ctx.e); err != nil {
return fmt.Errorf("failed to update size for repository: %v", err)
}
if err := copyLFS(ctx.e, generateRepo, templateRepo); err != nil {
return fmt.Errorf("failed to copy LFS: %v", err)
}
return nil
}
// GenerateTopics generates topics from a template repository
func GenerateTopics(ctx DBContext, templateRepo, generateRepo *Repository) error {
for _, topic := range templateRepo.Topics {
if _, err := addTopicByNameToRepo(ctx.e, generateRepo.ID, topic); err != nil {
return err
}
}
return nil
}
// GenerateGitHooks generates git hooks from a template repository
func GenerateGitHooks(ctx DBContext, templateRepo, generateRepo *Repository) error {
generateGitRepo, err := git.OpenRepository(generateRepo.repoPath(ctx.e))
if err != nil {
return err
}
defer generateGitRepo.Close()
templateGitRepo, err := git.OpenRepository(templateRepo.repoPath(ctx.e))
if err != nil {
return err
}
defer templateGitRepo.Close()
templateHooks, err := templateGitRepo.Hooks()
if err != nil {
return err
}
for _, templateHook := range templateHooks {
generateHook, err := generateGitRepo.GetHook(templateHook.Name())
if err != nil {
return err
}
generateHook.Content = templateHook.Content
if err := generateHook.Update(); err != nil {
return err
}
}
return nil
}
// GenerateWebhooks generates webhooks from a template repository
func GenerateWebhooks(ctx DBContext, templateRepo, generateRepo *Repository) error {
templateWebhooks, err := GetWebhooksByRepoID(templateRepo.ID)
if err != nil {
return err
}
for _, templateWebhook := range templateWebhooks {
generateWebhook := &Webhook{
RepoID: generateRepo.ID,
URL: templateWebhook.URL,
HTTPMethod: templateWebhook.HTTPMethod,
ContentType: templateWebhook.ContentType,
Secret: templateWebhook.Secret,
HookEvent: templateWebhook.HookEvent,
IsActive: templateWebhook.IsActive,
HookTaskType: templateWebhook.HookTaskType,
OrgID: templateWebhook.OrgID,
Events: templateWebhook.Events,
Meta: templateWebhook.Meta,
}
if err := createWebhook(ctx.e, generateWebhook); err != nil {
return err
}
}
return nil
}
// GenerateAvatar generates the avatar from a template repository
func GenerateAvatar(ctx DBContext, templateRepo, generateRepo *Repository) error {
generateRepo.Avatar = strings.Replace(templateRepo.Avatar, strconv.FormatInt(templateRepo.ID, 10), strconv.FormatInt(generateRepo.ID, 10), 1)
if err := com.Copy(templateRepo.CustomAvatarPath(), generateRepo.CustomAvatarPath()); err != nil {
return err
}
return updateRepositoryCols(ctx.e, generateRepo, "avatar")
}
// GenerateIssueLabels generates issue labels from a template repository
func GenerateIssueLabels(ctx DBContext, templateRepo, generateRepo *Repository) error {
templateLabels, err := getLabelsByRepoID(ctx.e, templateRepo.ID, "")
if err != nil {
return err
}
for _, templateLabel := range templateLabels {
generateLabel := &Label{
RepoID: generateRepo.ID,
Name: templateLabel.Name,
Description: templateLabel.Description,
Color: templateLabel.Color,
}
if err := newLabel(ctx.e, generateLabel); err != nil {
return err
}
}
return nil
}
func generateExpansion(src string, templateRepo, generateRepo *Repository) string {
return os.Expand(src, func(key string) string {
switch key {
case "REPO_NAME":
return generateRepo.Name
case "TEMPLATE_NAME":
return templateRepo.Name
case "REPO_DESCRIPTION":
return generateRepo.Description
case "TEMPLATE_DESCRIPTION":
return templateRepo.Description
case "REPO_OWNER":
return generateRepo.MustOwnerName()
case "TEMPLATE_OWNER":
return templateRepo.MustOwnerName()
case "REPO_LINK":
return generateRepo.Link()
case "TEMPLATE_LINK":
return templateRepo.Link()
case "REPO_HTTPS_URL":
return generateRepo.CloneLink().HTTPS
case "TEMPLATE_HTTPS_URL":
return templateRepo.CloneLink().HTTPS
case "REPO_SSH_URL":
return generateRepo.CloneLink().SSH
case "TEMPLATE_SSH_URL":
return templateRepo.CloneLink().SSH
default:
return key
}
})
}