Move wiki related funtions from models to services/wiki (#9355)

* Move wiki related funtions from models to services/wiki

Author: lunny

models/wiki.go

@@ -5,53 +5,12 @@
 package models
 
 import (
-	"fmt"
-	"net/url"
-	"os"
 	"path/filepath"
 	"strings"
 
-	"code.gitea.io/gitea/modules/git"
-	"code.gitea.io/gitea/modules/log"
-	"code.gitea.io/gitea/modules/sync"
-
 	"github.com/unknwon/com"
 )
 
-var (
-	reservedWikiNames = []string{"_pages", "_new", "_edit", "raw"}
-	wikiWorkingPool   = sync.NewExclusivePool()
-)
-
-// NormalizeWikiName normalizes a wiki name
-func NormalizeWikiName(name string) string {
-	return strings.Replace(name, "-", " ", -1)
-}
-
-// WikiNameToSubURL converts a wiki name to its corresponding sub-URL.
-func WikiNameToSubURL(name string) string {
-	return url.QueryEscape(strings.Replace(name, " ", "-", -1))
-}
-
-// WikiNameToFilename converts a wiki name to its corresponding filename.
-func WikiNameToFilename(name string) string {
-	name = strings.Replace(name, " ", "-", -1)
-	return url.QueryEscape(name) + ".md"
-}
-
-// WikiFilenameToName converts a wiki filename to its corresponding page name.
-func WikiFilenameToName(filename string) (string, error) {
-	if !strings.HasSuffix(filename, ".md") {
-		return "", ErrWikiInvalidFileName{filename}
-	}
-	basename := filename[:len(filename)-3]
-	unescaped, err := url.QueryUnescape(basename)
-	if err != nil {
-		return "", err
-	}
-	return NormalizeWikiName(unescaped), nil
-}
-
 // WikiCloneLink returns clone URLs of repository wiki.
 func (repo *Repository) WikiCloneLink() *CloneLink {
 	return repo.cloneLink(x, true)
@@ -71,275 +30,3 @@ func (repo *Repository) WikiPath() string {
 func (repo *Repository) HasWiki() bool {
 	return com.IsDir(repo.WikiPath())
 }
-
-// InitWiki initializes a wiki for repository,
-// it does nothing when repository already has wiki.
-func (repo *Repository) InitWiki() error {
-	if repo.HasWiki() {
-		return nil
-	}
-
-	if err := git.InitRepository(repo.WikiPath(), true); err != nil {
-		return fmt.Errorf("InitRepository: %v", err)
-	} else if err = createDelegateHooks(repo.WikiPath()); err != nil {
-		return fmt.Errorf("createDelegateHooks: %v", err)
-	}
-	return nil
-}
-
-// nameAllowed checks if a wiki name is allowed
-func nameAllowed(name string) error {
-	for _, reservedName := range reservedWikiNames {
-		if name == reservedName {
-			return ErrWikiReservedName{name}
-		}
-	}
-	return nil
-}
-
-// updateWikiPage adds a new page to the repository wiki.
-func (repo *Repository) updateWikiPage(doer *User, oldWikiName, newWikiName, content, message string, isNew bool) (err error) {
-	if err = nameAllowed(newWikiName); err != nil {
-		return err
-	}
-	wikiWorkingPool.CheckIn(com.ToStr(repo.ID))
-	defer wikiWorkingPool.CheckOut(com.ToStr(repo.ID))
-
-	if err = repo.InitWiki(); err != nil {
-		return fmt.Errorf("InitWiki: %v", err)
-	}
-
-	hasMasterBranch := git.IsBranchExist(repo.WikiPath(), "master")
-
-	basePath, err := CreateTemporaryPath("update-wiki")
-	if err != nil {
-		return err
-	}
-	defer func() {
-		if err := RemoveTemporaryPath(basePath); err != nil {
-			log.Error("Merge: RemoveTemporaryPath: %s", err)
-		}
-	}()
-
-	cloneOpts := git.CloneRepoOptions{
-		Bare:   true,
-		Shared: true,
-	}
-
-	if hasMasterBranch {
-		cloneOpts.Branch = "master"
-	}
-
-	if err := git.Clone(repo.WikiPath(), basePath, cloneOpts); err != nil {
-		log.Error("Failed to clone repository: %s (%v)", repo.FullName(), err)
-		return fmt.Errorf("Failed to clone repository: %s (%v)", repo.FullName(), err)
-	}
-
-	gitRepo, err := git.OpenRepository(basePath)
-	if err != nil {
-		log.Error("Unable to open temporary repository: %s (%v)", basePath, err)
-		return fmt.Errorf("Failed to open new temporary repository in: %s %v", basePath, err)
-	}
-	defer gitRepo.Close()
-
-	if hasMasterBranch {
-		if err := gitRepo.ReadTreeToIndex("HEAD"); err != nil {
-			log.Error("Unable to read HEAD tree to index in: %s %v", basePath, err)
-			return fmt.Errorf("Unable to read HEAD tree to index in: %s %v", basePath, err)
-		}
-	}
-
-	newWikiPath := WikiNameToFilename(newWikiName)
-	if isNew {
-		filesInIndex, err := gitRepo.LsFiles(newWikiPath)
-		if err != nil {
-			log.Error("%v", err)
-			return err
-		}
-		for _, file := range filesInIndex {
-			if file == newWikiPath {
-				return ErrWikiAlreadyExist{newWikiPath}
-			}
-		}
-	} else {
-		oldWikiPath := WikiNameToFilename(oldWikiName)
-		filesInIndex, err := gitRepo.LsFiles(oldWikiPath)
-		if err != nil {
-			log.Error("%v", err)
-			return err
-		}
-		found := false
-		for _, file := range filesInIndex {
-			if file == oldWikiPath {
-				found = true
-				break
-			}
-		}
-		if found {
-			err := gitRepo.RemoveFilesFromIndex(oldWikiPath)
-			if err != nil {
-				log.Error("%v", err)
-				return err
-			}
-		}
-	}
-
-	// FIXME: The wiki doesn't have lfs support at present - if this changes need to check attributes here
-
-	objectHash, err := gitRepo.HashObject(strings.NewReader(content))
-	if err != nil {
-		log.Error("%v", err)
-		return err
-	}
-
-	if err := gitRepo.AddObjectToIndex("100644", objectHash, newWikiPath); err != nil {
-		log.Error("%v", err)
-		return err
-	}
-
-	tree, err := gitRepo.WriteTree()
-	if err != nil {
-		log.Error("%v", err)
-		return err
-	}
-
-	commitTreeOpts := git.CommitTreeOpts{
-		Message: message,
-	}
-
-	sign, signingKey := repo.SignWikiCommit(doer)
-	if sign {
-		commitTreeOpts.KeyID = signingKey
-	} else {
-		commitTreeOpts.NoGPGSign = true
-	}
-	if hasMasterBranch {
-		commitTreeOpts.Parents = []string{"HEAD"}
-	}
-	commitHash, err := gitRepo.CommitTree(doer.NewGitSig(), tree, commitTreeOpts)
-	if err != nil {
-		log.Error("%v", err)
-		return err
-	}
-
-	if err := git.Push(basePath, git.PushOptions{
-		Remote: "origin",
-		Branch: fmt.Sprintf("%s:%s%s", commitHash.String(), git.BranchPrefix, "master"),
-		Env: FullPushingEnvironment(
-			doer,
-			doer,
-			repo,
-			repo.Name+".wiki",
-			0,
-		),
-	}); err != nil {
-		log.Error("%v", err)
-		return fmt.Errorf("Push: %v", err)
-	}
-
-	return nil
-}
-
-// AddWikiPage adds a new wiki page with a given wikiPath.
-func (repo *Repository) AddWikiPage(doer *User, wikiName, content, message string) error {
-	return repo.updateWikiPage(doer, "", wikiName, content, message, true)
-}
-
-// EditWikiPage updates a wiki page identified by its wikiPath,
-// optionally also changing wikiPath.
-func (repo *Repository) EditWikiPage(doer *User, oldWikiName, newWikiName, content, message string) error {
-	return repo.updateWikiPage(doer, oldWikiName, newWikiName, content, message, false)
-}
-
-// DeleteWikiPage deletes a wiki page identified by its path.
-func (repo *Repository) DeleteWikiPage(doer *User, wikiName string) (err error) {
-	wikiWorkingPool.CheckIn(com.ToStr(repo.ID))
-	defer wikiWorkingPool.CheckOut(com.ToStr(repo.ID))
-
-	if err = repo.InitWiki(); err != nil {
-		return fmt.Errorf("InitWiki: %v", err)
-	}
-
-	basePath, err := CreateTemporaryPath("update-wiki")
-	if err != nil {
-		return err
-	}
-	defer func() {
-		if err := RemoveTemporaryPath(basePath); err != nil {
-			log.Error("Merge: RemoveTemporaryPath: %s", err)
-		}
-	}()
-
-	if err := git.Clone(repo.WikiPath(), basePath, git.CloneRepoOptions{
-		Bare:   true,
-		Shared: true,
-		Branch: "master",
-	}); err != nil {
-		log.Error("Failed to clone repository: %s (%v)", repo.FullName(), err)
-		return fmt.Errorf("Failed to clone repository: %s (%v)", repo.FullName(), err)
-	}
-
-	gitRepo, err := git.OpenRepository(basePath)
-	if err != nil {
-		log.Error("Unable to open temporary repository: %s (%v)", basePath, err)
-		return fmt.Errorf("Failed to open new temporary repository in: %s %v", basePath, err)
-	}
-	defer gitRepo.Close()
-
-	if err := gitRepo.ReadTreeToIndex("HEAD"); err != nil {
-		log.Error("Unable to read HEAD tree to index in: %s %v", basePath, err)
-		return fmt.Errorf("Unable to read HEAD tree to index in: %s %v", basePath, err)
-	}
-
-	wikiPath := WikiNameToFilename(wikiName)
-	filesInIndex, err := gitRepo.LsFiles(wikiPath)
-	found := false
-	for _, file := range filesInIndex {
-		if file == wikiPath {
-			found = true
-			break
-		}
-	}
-	if found {
-		err := gitRepo.RemoveFilesFromIndex(wikiPath)
-		if err != nil {
-			return err
-		}
-	} else {
-		return os.ErrNotExist
-	}
-
-	// FIXME: The wiki doesn't have lfs support at present - if this changes need to check attributes here
-
-	tree, err := gitRepo.WriteTree()
-	if err != nil {
-		return err
-	}
-	message := "Delete page '" + wikiName + "'"
-	commitTreeOpts := git.CommitTreeOpts{
-		Message: message,
-		Parents: []string{"HEAD"},
-	}
-
-	sign, signingKey := repo.SignWikiCommit(doer)
-	if sign {
-		commitTreeOpts.KeyID = signingKey
-	} else {
-		commitTreeOpts.NoGPGSign = true
-	}
-
-	commitHash, err := gitRepo.CommitTree(doer.NewGitSig(), tree, commitTreeOpts)
-	if err != nil {
-		return err
-	}
-
-	if err := git.Push(basePath, git.PushOptions{
-		Remote: "origin",
-		Branch: fmt.Sprintf("%s:%s%s", commitHash.String(), git.BranchPrefix, "master"),
-		Env:    PushingEnvironment(doer, repo),
-	}); err != nil {
-		return fmt.Errorf("Push: %v", err)
-	}
-
-	return nil
-}