Move repository model into models/repo (#17933)

* Some refactors related repository model

* Move more methods out of repository

* Move repository into models/repo

* Fix test

* Fix test

* some improvements

* Remove unnecessary function

14 files changed, 1982 insertions, 0 deletions

diff --git a/models/repo/avatar.go b/models/repo/avatar.go
new file mode 100644
index 0000000000..f11f868d63
--- /dev/null
+++ b/models/repo/avatar.go
@@ -0,0 +1,94 @@
+// Copyright 2021 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 repo
+
+import (
+	"fmt"
+	"image/png"
+	"io"
+	"net/url"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/avatar"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/storage"
+)
+
+// CustomAvatarRelativePath returns repository custom avatar file path.
+func (repo *Repository) CustomAvatarRelativePath() string {
+	return repo.Avatar
+}
+
+// RelAvatarLink returns a relative link to the repository's avatar.
+func (repo *Repository) RelAvatarLink() string {
+	return repo.relAvatarLink(db.GetEngine(db.DefaultContext))
+}
+
+// generateRandomAvatar generates a random avatar for repository.
+func generateRandomAvatar(e db.Engine, repo *Repository) error {
+	idToString := fmt.Sprintf("%d", repo.ID)
+
+	seed := idToString
+	img, err := avatar.RandomImage([]byte(seed))
+	if err != nil {
+		return fmt.Errorf("RandomImage: %v", err)
+	}
+
+	repo.Avatar = idToString
+
+	if err := storage.SaveFrom(storage.RepoAvatars, repo.CustomAvatarRelativePath(), func(w io.Writer) error {
+		if err := png.Encode(w, img); err != nil {
+			log.Error("Encode: %v", err)
+		}
+		return err
+	}); err != nil {
+		return fmt.Errorf("Failed to create dir %s: %v", repo.CustomAvatarRelativePath(), err)
+	}
+
+	log.Info("New random avatar created for repository: %d", repo.ID)
+
+	if _, err := e.ID(repo.ID).Cols("avatar").NoAutoTime().Update(repo); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (repo *Repository) relAvatarLink(e db.Engine) string {
+	// If no avatar - path is empty
+	avatarPath := repo.CustomAvatarRelativePath()
+	if len(avatarPath) == 0 {
+		switch mode := setting.RepoAvatar.Fallback; mode {
+		case "image":
+			return setting.RepoAvatar.FallbackImage
+		case "random":
+			if err := generateRandomAvatar(e, repo); err != nil {
+				log.Error("generateRandomAvatar: %v", err)
+			}
+		default:
+			// default behaviour: do not display avatar
+			return ""
+		}
+	}
+	return setting.AppSubURL + "/repo-avatars/" + url.PathEscape(repo.Avatar)
+}
+
+// AvatarLink returns a link to the repository's avatar.
+func (repo *Repository) AvatarLink() string {
+	return repo.avatarLink(db.GetEngine(db.DefaultContext))
+}
+
+// avatarLink returns user avatar absolute link.
+func (repo *Repository) avatarLink(e db.Engine) string {
+	link := repo.relAvatarLink(e)
+	// we only prepend our AppURL to our known (relative, internal) avatar link to get an absolute URL
+	if strings.HasPrefix(link, "/") && !strings.HasPrefix(link, "//") {
+		return setting.AppURL + strings.TrimPrefix(link, setting.AppSubURL)[1:]
+	}
+	// otherwise, return the link as it is
+	return link
+}
diff --git a/models/repo/git.go b/models/repo/git.go
new file mode 100644
index 0000000000..509020565a
--- /dev/null
+++ b/models/repo/git.go
@@ -0,0 +1,31 @@
+// Copyright 2021 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 repo
+
+import "code.gitea.io/gitea/models/db"
+
+// MergeStyle represents the approach to merge commits into base branch.
+type MergeStyle string
+
+const (
+	// MergeStyleMerge create merge commit
+	MergeStyleMerge MergeStyle = "merge"
+	// MergeStyleRebase rebase before merging
+	MergeStyleRebase MergeStyle = "rebase"
+	// MergeStyleRebaseMerge rebase before merging with merge commit (--no-ff)
+	MergeStyleRebaseMerge MergeStyle = "rebase-merge"
+	// MergeStyleSquash squash commits into single commit before merging
+	MergeStyleSquash MergeStyle = "squash"
+	// MergeStyleManuallyMerged pr has been merged manually, just mark it as merged directly
+	MergeStyleManuallyMerged MergeStyle = "manually-merged"
+	// MergeStyleRebaseUpdate not a merge style, used to update pull head by rebase
+	MergeStyleRebaseUpdate MergeStyle = "rebase-update-only"
+)
+
+// UpdateDefaultBranch updates the default branch
+func UpdateDefaultBranch(repo *Repository) error {
+	_, err := db.GetEngine(db.DefaultContext).ID(repo.ID).Cols("default_branch").Update(repo)
+	return err
+}
diff --git a/models/repo/issue.go b/models/repo/issue.go
new file mode 100644
index 0000000000..3edcc7b5a0
--- /dev/null
+++ b/models/repo/issue.go
@@ -0,0 +1,67 @@
+// Copyright 2017 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 repo
+
+import (
+	"context"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unit"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+)
+
+// ___________.__             ___________                     __
+// \__    ___/|__| _____   ___\__    ___/___________    ____ |  | __ ___________
+// |    |   |  |/     \_/ __ \|    |  \_  __ \__  \ _/ ___\|  |/ // __ \_  __ \
+// |    |   |  |  Y Y  \  ___/|    |   |  | \// __ \\  \___|    <\  ___/|  | \/
+// |____|   |__|__|_|  /\___  >____|   |__|  (____  /\___  >__|_ \\___  >__|
+// \/     \/                    \/     \/     \/    \/
+
+// CanEnableTimetracker returns true when the server admin enabled time tracking
+// This overrules IsTimetrackerEnabled
+func (repo *Repository) CanEnableTimetracker() bool {
+	return setting.Service.EnableTimetracking
+}
+
+// IsTimetrackerEnabled returns whether or not the timetracker is enabled. It returns the default value from config if an error occurs.
+func (repo *Repository) IsTimetrackerEnabled() bool {
+	if !setting.Service.EnableTimetracking {
+		return false
+	}
+
+	var u *RepoUnit
+	var err error
+	if u, err = repo.GetUnit(unit.TypeIssues); err != nil {
+		return setting.Service.DefaultEnableTimetracking
+	}
+	return u.IssuesConfig().EnableTimetracker
+}
+
+// AllowOnlyContributorsToTrackTime returns value of IssuesConfig or the default value
+func (repo *Repository) AllowOnlyContributorsToTrackTime() bool {
+	var u *RepoUnit
+	var err error
+	if u, err = repo.GetUnit(unit.TypeIssues); err != nil {
+		return setting.Service.DefaultAllowOnlyContributorsToTrackTime
+	}
+	return u.IssuesConfig().AllowOnlyContributorsToTrackTime
+}
+
+// IsDependenciesEnabled returns if dependencies are enabled and returns the default setting if not set.
+func (repo *Repository) IsDependenciesEnabled() bool {
+	return repo.IsDependenciesEnabledCtx(db.DefaultContext)
+}
+
+// IsDependenciesEnabledCtx returns if dependencies are enabled and returns the default setting if not set.
+func (repo *Repository) IsDependenciesEnabledCtx(ctx context.Context) bool {
+	var u *RepoUnit
+	var err error
+	if u, err = repo.getUnit(ctx, unit.TypeIssues); err != nil {
+		log.Trace("%s", err)
+		return setting.Service.DefaultEnableDependencies
+	}
+	return u.IssuesConfig().EnableDependencies
+}
diff --git a/models/repo/language_stats.go b/models/repo/language_stats.go
new file mode 100644
index 0000000000..3b0888b6bd
--- /dev/null
+++ b/models/repo/language_stats.go
@@ -0,0 +1,215 @@
+// Copyright 2020 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 repo
+
+import (
+	"math"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"github.com/go-enry/go-enry/v2"
+)
+
+// LanguageStat describes language statistics of a repository
+type LanguageStat struct {
+	ID          int64 `xorm:"pk autoincr"`
+	RepoID      int64 `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	CommitID    string
+	IsPrimary   bool
+	Language    string             `xorm:"VARCHAR(50) UNIQUE(s) INDEX NOT NULL"`
+	Percentage  float32            `xorm:"-"`
+	Size        int64              `xorm:"NOT NULL DEFAULT 0"`
+	Color       string             `xorm:"-"`
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX CREATED"`
+}
+
+func init() {
+	db.RegisterModel(new(LanguageStat))
+}
+
+// LanguageStatList defines a list of language statistics
+type LanguageStatList []*LanguageStat
+
+// LoadAttributes loads attributes
+func (stats LanguageStatList) LoadAttributes() {
+	for i := range stats {
+		stats[i].Color = enry.GetColor(stats[i].Language)
+	}
+}
+
+func (stats LanguageStatList) getLanguagePercentages() map[string]float32 {
+	langPerc := make(map[string]float32)
+	var otherPerc float32 = 100
+	var total int64
+
+	for _, stat := range stats {
+		total += stat.Size
+	}
+	if total > 0 {
+		for _, stat := range stats {
+			perc := float32(math.Round(float64(stat.Size)/float64(total)*1000) / 10)
+			if perc <= 0.1 {
+				continue
+			}
+			otherPerc -= perc
+			langPerc[stat.Language] = perc
+		}
+		otherPerc = float32(math.Round(float64(otherPerc)*10) / 10)
+	}
+	if otherPerc > 0 {
+		langPerc["other"] = otherPerc
+	}
+	return langPerc
+}
+
+func getLanguageStats(e db.Engine, repo *Repository) (LanguageStatList, error) {
+	stats := make(LanguageStatList, 0, 6)
+	if err := e.Where("`repo_id` = ?", repo.ID).Desc("`size`").Find(&stats); err != nil {
+		return nil, err
+	}
+	return stats, nil
+}
+
+// GetLanguageStats returns the language statistics for a repository
+func GetLanguageStats(repo *Repository) (LanguageStatList, error) {
+	return getLanguageStats(db.GetEngine(db.DefaultContext), repo)
+}
+
+// GetTopLanguageStats returns the top language statistics for a repository
+func GetTopLanguageStats(repo *Repository, limit int) (LanguageStatList, error) {
+	stats, err := getLanguageStats(db.GetEngine(db.DefaultContext), repo)
+	if err != nil {
+		return nil, err
+	}
+	perc := stats.getLanguagePercentages()
+	topstats := make(LanguageStatList, 0, limit)
+	var other float32
+	for i := range stats {
+		if _, ok := perc[stats[i].Language]; !ok {
+			continue
+		}
+		if stats[i].Language == "other" || len(topstats) >= limit {
+			other += perc[stats[i].Language]
+			continue
+		}
+		stats[i].Percentage = perc[stats[i].Language]
+		topstats = append(topstats, stats[i])
+	}
+	if other > 0 {
+		topstats = append(topstats, &LanguageStat{
+			RepoID:     repo.ID,
+			Language:   "other",
+			Color:      "#cccccc",
+			Percentage: float32(math.Round(float64(other)*10) / 10),
+		})
+	}
+	topstats.LoadAttributes()
+	return topstats, nil
+}
+
+// UpdateLanguageStats updates the language statistics for repository
+func UpdateLanguageStats(repo *Repository, commitID string, stats map[string]int64) error {
+	ctx, committer, err := db.TxContext()
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+	sess := db.GetEngine(ctx)
+
+	oldstats, err := getLanguageStats(sess, repo)
+	if err != nil {
+		return err
+	}
+	var topLang string
+	var s int64
+	for lang, size := range stats {
+		if size > s {
+			s = size
+			topLang = strings.ToLower(lang)
+		}
+	}
+
+	for lang, size := range stats {
+		upd := false
+		llang := strings.ToLower(lang)
+		for _, s := range oldstats {
+			// Update already existing language
+			if strings.ToLower(s.Language) == llang {
+				s.CommitID = commitID
+				s.IsPrimary = llang == topLang
+				s.Size = size
+				if _, err := sess.ID(s.ID).Cols("`commit_id`", "`size`", "`is_primary`").Update(s); err != nil {
+					return err
+				}
+				upd = true
+				break
+			}
+		}
+		// Insert new language
+		if !upd {
+			if _, err := sess.Insert(&LanguageStat{
+				RepoID:    repo.ID,
+				CommitID:  commitID,
+				IsPrimary: llang == topLang,
+				Language:  lang,
+				Size:      size,
+			}); err != nil {
+				return err
+			}
+		}
+	}
+	// Delete old languages
+	statsToDelete := make([]int64, 0, len(oldstats))
+	for _, s := range oldstats {
+		if s.CommitID != commitID {
+			statsToDelete = append(statsToDelete, s.ID)
+		}
+	}
+	if len(statsToDelete) > 0 {
+		if _, err := sess.In("`id`", statsToDelete).Delete(&LanguageStat{}); err != nil {
+			return err
+		}
+	}
+
+	// Update indexer status
+	if err = updateIndexerStatus(sess, repo, RepoIndexerTypeStats, commitID); err != nil {
+		return err
+	}
+
+	return committer.Commit()
+}
+
+// CopyLanguageStat Copy originalRepo language stat information to destRepo (use for forked repo)
+func CopyLanguageStat(originalRepo, destRepo *Repository) error {
+	ctx, committer, err := db.TxContext()
+	if err != nil {
+		return err
+	}
+	defer committer.Close()
+	sess := db.GetEngine(ctx)
+
+	RepoLang := make(LanguageStatList, 0, 6)
+	if err := sess.Where("`repo_id` = ?", originalRepo.ID).Desc("`size`").Find(&RepoLang); err != nil {
+		return err
+	}
+	if len(RepoLang) > 0 {
+		for i := range RepoLang {
+			RepoLang[i].ID = 0
+			RepoLang[i].RepoID = destRepo.ID
+			RepoLang[i].CreatedUnix = timeutil.TimeStampNow()
+		}
+		// update destRepo's indexer status
+		tmpCommitID := RepoLang[0].CommitID
+		if err := updateIndexerStatus(sess, destRepo, RepoIndexerTypeStats, tmpCommitID); err != nil {
+			return err
+		}
+		if _, err := sess.Insert(&RepoLang); err != nil {
+			return err
+		}
+	}
+	return committer.Commit()
+}
diff --git a/models/repo/main_test.go b/models/repo/main_test.go
index aa960bf132..f40a976281 100644
--- a/models/repo/main_test.go
+++ b/models/repo/main_test.go
@@ -15,5 +15,8 @@ func TestMain(m *testing.M) {
 	unittest.MainTest(m, filepath.Join("..", ".."),
 		"attachment.yml",
 		"repo_archiver.yml",
+		"repository.yml",
+		"repo_unit.yml",
+		"repo_indexer_status.yml",
 	)
 }
diff --git a/models/repo/mirror.go b/models/repo/mirror.go
new file mode 100644
index 0000000000..bdb449af3a
--- /dev/null
+++ b/models/repo/mirror.go
@@ -0,0 +1,177 @@
+// Copyright 2016 The Gogs Authors. All rights reserved.
+// Copyright 2018 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 repo
+
+import (
+	"errors"
+	"fmt"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+var (
+	// ErrMirrorNotExist mirror does not exist error
+	ErrMirrorNotExist = errors.New("Mirror does not exist")
+)
+
+// RemoteMirrorer defines base methods for pull/push mirrors.
+type RemoteMirrorer interface {
+	GetRepository() *Repository
+	GetRemoteName() string
+}
+
+// Mirror represents mirror information of a repository.
+type Mirror struct {
+	ID          int64       `xorm:"pk autoincr"`
+	RepoID      int64       `xorm:"INDEX"`
+	Repo        *Repository `xorm:"-"`
+	Interval    time.Duration
+	EnablePrune bool `xorm:"NOT NULL DEFAULT true"`
+
+	UpdatedUnix    timeutil.TimeStamp `xorm:"INDEX"`
+	NextUpdateUnix timeutil.TimeStamp `xorm:"INDEX"`
+
+	LFS         bool   `xorm:"lfs_enabled NOT NULL DEFAULT false"`
+	LFSEndpoint string `xorm:"lfs_endpoint TEXT"`
+
+	Address string `xorm:"-"`
+}
+
+func init() {
+	db.RegisterModel(new(Mirror))
+}
+
+// BeforeInsert will be invoked by XORM before inserting a record
+func (m *Mirror) BeforeInsert() {
+	if m != nil {
+		m.UpdatedUnix = timeutil.TimeStampNow()
+		m.NextUpdateUnix = timeutil.TimeStampNow()
+	}
+}
+
+// AfterLoad is invoked from XORM after setting the values of all fields of this object.
+func (m *Mirror) AfterLoad(session *xorm.Session) {
+	if m == nil {
+		return
+	}
+
+	var err error
+	m.Repo, err = getRepositoryByID(session, m.RepoID)
+	if err != nil {
+		log.Error("getRepositoryByID[%d]: %v", m.ID, err)
+	}
+}
+
+// GetRepository returns the repository.
+func (m *Mirror) GetRepository() *Repository {
+	return m.Repo
+}
+
+// GetRemoteName returns the name of the remote.
+func (m *Mirror) GetRemoteName() string {
+	return "origin"
+}
+
+// ScheduleNextUpdate calculates and sets next update time.
+func (m *Mirror) ScheduleNextUpdate() {
+	if m.Interval != 0 {
+		m.NextUpdateUnix = timeutil.TimeStampNow().AddDuration(m.Interval)
+	} else {
+		m.NextUpdateUnix = 0
+	}
+}
+
+func getMirrorByRepoID(e db.Engine, repoID int64) (*Mirror, error) {
+	m := &Mirror{RepoID: repoID}
+	has, err := e.Get(m)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrMirrorNotExist
+	}
+	return m, nil
+}
+
+// GetMirrorByRepoID returns mirror information of a repository.
+func GetMirrorByRepoID(repoID int64) (*Mirror, error) {
+	return getMirrorByRepoID(db.GetEngine(db.DefaultContext), repoID)
+}
+
+func updateMirror(e db.Engine, m *Mirror) error {
+	_, err := e.ID(m.ID).AllCols().Update(m)
+	return err
+}
+
+// UpdateMirror updates the mirror
+func UpdateMirror(m *Mirror) error {
+	return updateMirror(db.GetEngine(db.DefaultContext), m)
+}
+
+// DeleteMirrorByRepoID deletes a mirror by repoID
+func DeleteMirrorByRepoID(repoID int64) error {
+	_, err := db.GetEngine(db.DefaultContext).Delete(&Mirror{RepoID: repoID})
+	return err
+}
+
+// MirrorsIterate iterates all mirror repositories.
+func MirrorsIterate(f func(idx int, bean interface{}) error) error {
+	return db.GetEngine(db.DefaultContext).
+		Where("next_update_unix<=?", time.Now().Unix()).
+		And("next_update_unix!=0").
+		OrderBy("updated_unix ASC").
+		Iterate(new(Mirror), f)
+}
+
+// InsertMirror inserts a mirror to database
+func InsertMirror(mirror *Mirror) error {
+	_, err := db.GetEngine(db.DefaultContext).Insert(mirror)
+	return err
+}
+
+// MirrorRepositoryList contains the mirror repositories
+type MirrorRepositoryList []*Repository
+
+func (repos MirrorRepositoryList) loadAttributes(e db.Engine) error {
+	if len(repos) == 0 {
+		return nil
+	}
+
+	// Load mirrors.
+	repoIDs := make([]int64, 0, len(repos))
+	for i := range repos {
+		if !repos[i].IsMirror {
+			continue
+		}
+
+		repoIDs = append(repoIDs, repos[i].ID)
+	}
+	mirrors := make([]*Mirror, 0, len(repoIDs))
+	if err := e.
+		Where("id > 0").
+		In("repo_id", repoIDs).
+		Find(&mirrors); err != nil {
+		return fmt.Errorf("find mirrors: %v", err)
+	}
+
+	set := make(map[int64]*Mirror)
+	for i := range mirrors {
+		set[mirrors[i].RepoID] = mirrors[i]
+	}
+	for i := range repos {
+		repos[i].Mirror = set[repos[i].ID]
+	}
+	return nil
+}
+
+// LoadAttributes loads the attributes for the given MirrorRepositoryList
+func (repos MirrorRepositoryList) LoadAttributes() error {
+	return repos.loadAttributes(db.GetEngine(db.DefaultContext))
+}
diff --git a/models/repo/pushmirror.go b/models/repo/pushmirror.go
new file mode 100644
index 0000000000..0b62161641
--- /dev/null
+++ b/models/repo/pushmirror.go
@@ -0,0 +1,112 @@
+// Copyright 2021 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 repo
+
+import (
+	"errors"
+	"time"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+)
+
+var (
+	// ErrPushMirrorNotExist mirror does not exist error
+	ErrPushMirrorNotExist = errors.New("PushMirror does not exist")
+)
+
+// PushMirror represents mirror information of a repository.
+type PushMirror struct {
+	ID         int64       `xorm:"pk autoincr"`
+	RepoID     int64       `xorm:"INDEX"`
+	Repo       *Repository `xorm:"-"`
+	RemoteName string
+
+	Interval       time.Duration
+	CreatedUnix    timeutil.TimeStamp `xorm:"created"`
+	LastUpdateUnix timeutil.TimeStamp `xorm:"INDEX last_update"`
+	LastError      string             `xorm:"text"`
+}
+
+func init() {
+	db.RegisterModel(new(PushMirror))
+}
+
+// AfterLoad is invoked from XORM after setting the values of all fields of this object.
+func (m *PushMirror) AfterLoad(session *xorm.Session) {
+	if m == nil {
+		return
+	}
+
+	var err error
+	m.Repo, err = getRepositoryByID(session, m.RepoID)
+	if err != nil {
+		log.Error("getRepositoryByID[%d]: %v", m.ID, err)
+	}
+}
+
+// GetRepository returns the path of the repository.
+func (m *PushMirror) GetRepository() *Repository {
+	return m.Repo
+}
+
+// GetRemoteName returns the name of the remote.
+func (m *PushMirror) GetRemoteName() string {
+	return m.RemoteName
+}
+
+// InsertPushMirror inserts a push-mirror to database
+func InsertPushMirror(m *PushMirror) error {
+	_, err := db.GetEngine(db.DefaultContext).Insert(m)
+	return err
+}
+
+// UpdatePushMirror updates the push-mirror
+func UpdatePushMirror(m *PushMirror) error {
+	_, err := db.GetEngine(db.DefaultContext).ID(m.ID).AllCols().Update(m)
+	return err
+}
+
+// DeletePushMirrorByID deletes a push-mirrors by ID
+func DeletePushMirrorByID(ID int64) error {
+	_, err := db.GetEngine(db.DefaultContext).ID(ID).Delete(&PushMirror{})
+	return err
+}
+
+// DeletePushMirrorsByRepoID deletes all push-mirrors by repoID
+func DeletePushMirrorsByRepoID(repoID int64) error {
+	_, err := db.GetEngine(db.DefaultContext).Delete(&PushMirror{RepoID: repoID})
+	return err
+}
+
+// GetPushMirrorByID returns push-mirror information.
+func GetPushMirrorByID(ID int64) (*PushMirror, error) {
+	m := &PushMirror{}
+	has, err := db.GetEngine(db.DefaultContext).ID(ID).Get(m)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrPushMirrorNotExist
+	}
+	return m, nil
+}
+
+// GetPushMirrorsByRepoID returns push-mirror information of a repository.
+func GetPushMirrorsByRepoID(repoID int64) ([]*PushMirror, error) {
+	mirrors := make([]*PushMirror, 0, 10)
+	return mirrors, db.GetEngine(db.DefaultContext).Where("repo_id=?", repoID).Find(&mirrors)
+}
+
+// PushMirrorsIterate iterates all push-mirror repositories.
+func PushMirrorsIterate(f func(idx int, bean interface{}) error) error {
+	return db.GetEngine(db.DefaultContext).
+		Where("last_update + (`interval` / ?) <= ?", time.Second, time.Now().Unix()).
+		And("`interval` != 0").
+		OrderBy("last_update ASC").
+		Iterate(new(PushMirror), f)
+}
diff --git a/models/repo/pushmirror_test.go b/models/repo/pushmirror_test.go
new file mode 100644
index 0000000000..eff31fbac2
--- /dev/null
+++ b/models/repo/pushmirror_test.go
@@ -0,0 +1,50 @@
+// Copyright 2021 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 repo
+
+import (
+	"testing"
+	"time"
+
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestPushMirrorsIterate(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+
+	now := timeutil.TimeStampNow()
+
+	InsertPushMirror(&PushMirror{
+		RemoteName:     "test-1",
+		LastUpdateUnix: now,
+		Interval:       1,
+	})
+
+	long, _ := time.ParseDuration("24h")
+	InsertPushMirror(&PushMirror{
+		RemoteName:     "test-2",
+		LastUpdateUnix: now,
+		Interval:       long,
+	})
+
+	InsertPushMirror(&PushMirror{
+		RemoteName:     "test-3",
+		LastUpdateUnix: now,
+		Interval:       0,
+	})
+
+	time.Sleep(1 * time.Millisecond)
+
+	PushMirrorsIterate(func(idx int, bean interface{}) error {
+		m, ok := bean.(*PushMirror)
+		assert.True(t, ok)
+		assert.Equal(t, "test-1", m.RemoteName)
+		assert.Equal(t, m.RemoteName, m.GetRemoteName())
+		return nil
+	})
+}
diff --git a/models/repo/repo.go b/models/repo/repo.go
new file mode 100644
index 0000000000..9353e813bc
--- /dev/null
+++ b/models/repo/repo.go
@@ -0,0 +1,736 @@
+// Copyright 2021 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 repo
+
+import (
+	"context"
+	"fmt"
+	"html/template"
+	"net"
+	"net/url"
+	"path/filepath"
+	"strconv"
+	"strings"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unit"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/markup"
+	"code.gitea.io/gitea/modules/setting"
+	api "code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// TrustModelType defines the types of trust model for this repository
+type TrustModelType int
+
+// kinds of TrustModel
+const (
+	DefaultTrustModel TrustModelType = iota // default trust model
+	CommitterTrustModel
+	CollaboratorTrustModel
+	CollaboratorCommitterTrustModel
+)
+
+// String converts a TrustModelType to a string
+func (t TrustModelType) String() string {
+	switch t {
+	case DefaultTrustModel:
+		return "default"
+	case CommitterTrustModel:
+		return "committer"
+	case CollaboratorTrustModel:
+		return "collaborator"
+	case CollaboratorCommitterTrustModel:
+		return "collaboratorcommitter"
+	}
+	return "default"
+}
+
+// ToTrustModel converts a string to a TrustModelType
+func ToTrustModel(model string) TrustModelType {
+	switch strings.ToLower(strings.TrimSpace(model)) {
+	case "default":
+		return DefaultTrustModel
+	case "collaborator":
+		return CollaboratorTrustModel
+	case "committer":
+		return CommitterTrustModel
+	case "collaboratorcommitter":
+		return CollaboratorCommitterTrustModel
+	}
+	return DefaultTrustModel
+}
+
+// RepositoryStatus defines the status of repository
+type RepositoryStatus int
+
+// all kinds of RepositoryStatus
+const (
+	RepositoryReady           RepositoryStatus = iota // a normal repository
+	RepositoryBeingMigrated                           // repository is migrating
+	RepositoryPendingTransfer                         // repository pending in ownership transfer state
+	RepositoryBroken                                  // repository is in a permanently broken state
+)
+
+// Repository represents a git repository.
+type Repository struct {
+	ID                  int64 `xorm:"pk autoincr"`
+	OwnerID             int64 `xorm:"UNIQUE(s) index"`
+	OwnerName           string
+	Owner               *user_model.User   `xorm:"-"`
+	LowerName           string             `xorm:"UNIQUE(s) INDEX NOT NULL"`
+	Name                string             `xorm:"INDEX NOT NULL"`
+	Description         string             `xorm:"TEXT"`
+	Website             string             `xorm:"VARCHAR(2048)"`
+	OriginalServiceType api.GitServiceType `xorm:"index"`
+	OriginalURL         string             `xorm:"VARCHAR(2048)"`
+	DefaultBranch       string
+
+	NumWatches          int
+	NumStars            int
+	NumForks            int
+	NumIssues           int
+	NumClosedIssues     int
+	NumOpenIssues       int `xorm:"-"`
+	NumPulls            int
+	NumClosedPulls      int
+	NumOpenPulls        int `xorm:"-"`
+	NumMilestones       int `xorm:"NOT NULL DEFAULT 0"`
+	NumClosedMilestones int `xorm:"NOT NULL DEFAULT 0"`
+	NumOpenMilestones   int `xorm:"-"`
+	NumProjects         int `xorm:"NOT NULL DEFAULT 0"`
+	NumClosedProjects   int `xorm:"NOT NULL DEFAULT 0"`
+	NumOpenProjects     int `xorm:"-"`
+
+	IsPrivate  bool `xorm:"INDEX"`
+	IsEmpty    bool `xorm:"INDEX"`
+	IsArchived bool `xorm:"INDEX"`
+	IsMirror   bool `xorm:"INDEX"`
+	*Mirror    `xorm:"-"`
+	Status     RepositoryStatus `xorm:"NOT NULL DEFAULT 0"`
+
+	RenderingMetas         map[string]string `xorm:"-"`
+	DocumentRenderingMetas map[string]string `xorm:"-"`
+	Units                  []*RepoUnit       `xorm:"-"`
+	PrimaryLanguage        *LanguageStat     `xorm:"-"`
+
+	IsFork                          bool               `xorm:"INDEX NOT NULL DEFAULT false"`
+	ForkID                          int64              `xorm:"INDEX"`
+	BaseRepo                        *Repository        `xorm:"-"`
+	IsTemplate                      bool               `xorm:"INDEX NOT NULL DEFAULT false"`
+	TemplateID                      int64              `xorm:"INDEX"`
+	Size                            int64              `xorm:"NOT NULL DEFAULT 0"`
+	CodeIndexerStatus               *RepoIndexerStatus `xorm:"-"`
+	StatsIndexerStatus              *RepoIndexerStatus `xorm:"-"`
+	IsFsckEnabled                   bool               `xorm:"NOT NULL DEFAULT true"`
+	CloseIssuesViaCommitInAnyBranch bool               `xorm:"NOT NULL DEFAULT false"`
+	Topics                          []string           `xorm:"TEXT JSON"`
+
+	TrustModel TrustModelType
+
+	// Avatar: ID(10-20)-md5(32) - must fit into 64 symbols
+	Avatar string `xorm:"VARCHAR(64)"`
+
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
+	UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
+}
+
+func init() {
+	db.RegisterModel(new(Repository))
+}
+
+// SanitizedOriginalURL returns a sanitized OriginalURL
+func (repo *Repository) SanitizedOriginalURL() string {
+	if repo.OriginalURL == "" {
+		return ""
+	}
+	u, err := url.Parse(repo.OriginalURL)
+	if err != nil {
+		return ""
+	}
+	u.User = nil
+	return u.String()
+}
+
+// ColorFormat returns a colored string to represent this repo
+func (repo *Repository) ColorFormat(s fmt.State) {
+	log.ColorFprintf(s, "%d:%s/%s",
+		log.NewColoredIDValue(repo.ID),
+		repo.OwnerName,
+		repo.Name)
+}
+
+// IsBeingMigrated indicates that repository is being migrated
+func (repo *Repository) IsBeingMigrated() bool {
+	return repo.Status == RepositoryBeingMigrated
+}
+
+// IsBeingCreated indicates that repository is being migrated or forked
+func (repo *Repository) IsBeingCreated() bool {
+	return repo.IsBeingMigrated()
+}
+
+// IsBroken indicates that repository is broken
+func (repo *Repository) IsBroken() bool {
+	return repo.Status == RepositoryBroken
+}
+
+// AfterLoad is invoked from XORM after setting the values of all fields of this object.
+func (repo *Repository) AfterLoad() {
+	// FIXME: use models migration to solve all at once.
+	if len(repo.DefaultBranch) == 0 {
+		repo.DefaultBranch = setting.Repository.DefaultBranch
+	}
+
+	repo.NumOpenIssues = repo.NumIssues - repo.NumClosedIssues
+	repo.NumOpenPulls = repo.NumPulls - repo.NumClosedPulls
+	repo.NumOpenMilestones = repo.NumMilestones - repo.NumClosedMilestones
+	repo.NumOpenProjects = repo.NumProjects - repo.NumClosedProjects
+}
+
+// MustOwner always returns a valid *user_model.User object to avoid
+// conceptually impossible error handling.
+// It creates a fake object that contains error details
+// when error occurs.
+func (repo *Repository) MustOwner() *user_model.User {
+	return repo.mustOwner(db.DefaultContext)
+}
+
+// FullName returns the repository full name
+func (repo *Repository) FullName() string {
+	return repo.OwnerName + "/" + repo.Name
+}
+
+// HTMLURL returns the repository HTML URL
+func (repo *Repository) HTMLURL() string {
+	return setting.AppURL + url.PathEscape(repo.OwnerName) + "/" + url.PathEscape(repo.Name)
+}
+
+// CommitLink make link to by commit full ID
+// note: won't check whether it's an right id
+func (repo *Repository) CommitLink(commitID string) (result string) {
+	if commitID == "" || commitID == "0000000000000000000000000000000000000000" {
+		result = ""
+	} else {
+		result = repo.HTMLURL() + "/commit/" + url.PathEscape(commitID)
+	}
+	return
+}
+
+// APIURL returns the repository API URL
+func (repo *Repository) APIURL() string {
+	return setting.AppURL + "api/v1/repos/" + url.PathEscape(repo.OwnerName) + "/" + url.PathEscape(repo.Name)
+}
+
+// GetCommitsCountCacheKey returns cache key used for commits count caching.
+func (repo *Repository) GetCommitsCountCacheKey(contextName string, isRef bool) string {
+	var prefix string
+	if isRef {
+		prefix = "ref"
+	} else {
+		prefix = "commit"
+	}
+	return fmt.Sprintf("commits-count-%d-%s-%s", repo.ID, prefix, contextName)
+}
+
+// LoadUnits loads repo units into repo.Units
+func (repo *Repository) LoadUnits(ctx context.Context) (err error) {
+	if repo.Units != nil {
+		return nil
+	}
+
+	repo.Units, err = getUnitsByRepoID(db.GetEngine(ctx), repo.ID)
+	log.Trace("repo.Units: %-+v", repo.Units)
+	return err
+}
+
+// UnitEnabled if this repository has the given unit enabled
+func (repo *Repository) UnitEnabled(tp unit.Type) bool {
+	if err := repo.LoadUnits(db.DefaultContext); err != nil {
+		log.Warn("Error loading repository (ID: %d) units: %s", repo.ID, err.Error())
+	}
+	for _, unit := range repo.Units {
+		if unit.Type == tp {
+			return true
+		}
+	}
+	return false
+}
+
+// MustGetUnit always returns a RepoUnit object
+func (repo *Repository) MustGetUnit(tp unit.Type) *RepoUnit {
+	ru, err := repo.GetUnit(tp)
+	if err == nil {
+		return ru
+	}
+
+	if tp == unit.TypeExternalWiki {
+		return &RepoUnit{
+			Type:   tp,
+			Config: new(ExternalWikiConfig),
+		}
+	} else if tp == unit.TypeExternalTracker {
+		return &RepoUnit{
+			Type:   tp,
+			Config: new(ExternalTrackerConfig),
+		}
+	} else if tp == unit.TypePullRequests {
+		return &RepoUnit{
+			Type:   tp,
+			Config: new(PullRequestsConfig),
+		}
+	} else if tp == unit.TypeIssues {
+		return &RepoUnit{
+			Type:   tp,
+			Config: new(IssuesConfig),
+		}
+	}
+	return &RepoUnit{
+		Type:   tp,
+		Config: new(UnitConfig),
+	}
+}
+
+// GetUnit returns a RepoUnit object
+func (repo *Repository) GetUnit(tp unit.Type) (*RepoUnit, error) {
+	return repo.getUnit(db.DefaultContext, tp)
+}
+
+func (repo *Repository) getUnit(ctx context.Context, tp unit.Type) (*RepoUnit, error) {
+	if err := repo.LoadUnits(ctx); err != nil {
+		return nil, err
+	}
+	for _, unit := range repo.Units {
+		if unit.Type == tp {
+			return unit, nil
+		}
+	}
+	return nil, ErrUnitTypeNotExist{tp}
+}
+
+// GetOwner returns the repository owner
+func (repo *Repository) GetOwner(ctx context.Context) (err error) {
+	if repo.Owner != nil {
+		return nil
+	}
+
+	repo.Owner, err = user_model.GetUserByIDEngine(db.GetEngine(ctx), repo.OwnerID)
+	return err
+}
+
+func (repo *Repository) mustOwner(ctx context.Context) *user_model.User {
+	if err := repo.GetOwner(ctx); err != nil {
+		return &user_model.User{
+			Name:     "error",
+			FullName: err.Error(),
+		}
+	}
+
+	return repo.Owner
+}
+
+// ComposeMetas composes a map of metas for properly rendering issue links and external issue trackers.
+func (repo *Repository) ComposeMetas() map[string]string {
+	if len(repo.RenderingMetas) == 0 {
+		metas := map[string]string{
+			"user":     repo.OwnerName,
+			"repo":     repo.Name,
+			"repoPath": repo.RepoPath(),
+			"mode":     "comment",
+		}
+
+		unit, err := repo.GetUnit(unit.TypeExternalTracker)
+		if err == nil {
+			metas["format"] = unit.ExternalTrackerConfig().ExternalTrackerFormat
+			switch unit.ExternalTrackerConfig().ExternalTrackerStyle {
+			case markup.IssueNameStyleAlphanumeric:
+				metas["style"] = markup.IssueNameStyleAlphanumeric
+			default:
+				metas["style"] = markup.IssueNameStyleNumeric
+			}
+		}
+
+		repo.MustOwner()
+		if repo.Owner.IsOrganization() {
+			teams := make([]string, 0, 5)
+			_ = db.GetEngine(db.DefaultContext).Table("team_repo").
+				Join("INNER", "team", "team.id = team_repo.team_id").
+				Where("team_repo.repo_id = ?", repo.ID).
+				Select("team.lower_name").
+				OrderBy("team.lower_name").
+				Find(&teams)
+			metas["teams"] = "," + strings.Join(teams, ",") + ","
+			metas["org"] = strings.ToLower(repo.OwnerName)
+		}
+
+		repo.RenderingMetas = metas
+	}
+	return repo.RenderingMetas
+}
+
+// ComposeDocumentMetas composes a map of metas for properly rendering documents
+func (repo *Repository) ComposeDocumentMetas() map[string]string {
+	if len(repo.DocumentRenderingMetas) == 0 {
+		metas := map[string]string{}
+		for k, v := range repo.ComposeMetas() {
+			metas[k] = v
+		}
+		metas["mode"] = "document"
+		repo.DocumentRenderingMetas = metas
+	}
+	return repo.DocumentRenderingMetas
+}
+
+// GetBaseRepo populates repo.BaseRepo for a fork repository and
+// returns an error on failure (NOTE: no error is returned for
+// non-fork repositories, and BaseRepo will be left untouched)
+func (repo *Repository) GetBaseRepo() (err error) {
+	return repo.getBaseRepo(db.GetEngine(db.DefaultContext))
+}
+
+func (repo *Repository) getBaseRepo(e db.Engine) (err error) {
+	if !repo.IsFork {
+		return nil
+	}
+
+	repo.BaseRepo, err = getRepositoryByID(e, repo.ForkID)
+	return err
+}
+
+// IsGenerated returns whether _this_ repository was generated from a template
+func (repo *Repository) IsGenerated() bool {
+	return repo.TemplateID != 0
+}
+
+// RepoPath returns repository path by given user and repository name.
+func RepoPath(userName, repoName string) string { //revive:disable-line:exported
+	return filepath.Join(user_model.UserPath(userName), strings.ToLower(repoName)+".git")
+}
+
+// RepoPath returns the repository path
+func (repo *Repository) RepoPath() string {
+	return RepoPath(repo.OwnerName, repo.Name)
+}
+
+// GitConfigPath returns the path to a repository's git config/ directory
+func GitConfigPath(repoPath string) string {
+	return filepath.Join(repoPath, "config")
+}
+
+// GitConfigPath returns the repository git config path
+func (repo *Repository) GitConfigPath() string {
+	return GitConfigPath(repo.RepoPath())
+}
+
+// Link returns the repository link
+func (repo *Repository) Link() string {
+	return setting.AppSubURL + "/" + url.PathEscape(repo.OwnerName) + "/" + url.PathEscape(repo.Name)
+}
+
+// ComposeCompareURL returns the repository comparison URL
+func (repo *Repository) ComposeCompareURL(oldCommitID, newCommitID string) string {
+	return fmt.Sprintf("%s/%s/compare/%s...%s", url.PathEscape(repo.OwnerName), url.PathEscape(repo.Name), util.PathEscapeSegments(oldCommitID), util.PathEscapeSegments(newCommitID))
+}
+
+// IsOwnedBy returns true when user owns this repository
+func (repo *Repository) IsOwnedBy(userID int64) bool {
+	return repo.OwnerID == userID
+}
+
+// CanCreateBranch returns true if repository meets the requirements for creating new branches.
+func (repo *Repository) CanCreateBranch() bool {
+	return !repo.IsMirror
+}
+
+// CanEnablePulls returns true if repository meets the requirements of accepting pulls.
+func (repo *Repository) CanEnablePulls() bool {
+	return !repo.IsMirror && !repo.IsEmpty
+}
+
+// AllowsPulls returns true if repository meets the requirements of accepting pulls and has them enabled.
+func (repo *Repository) AllowsPulls() bool {
+	return repo.CanEnablePulls() && repo.UnitEnabled(unit.TypePullRequests)
+}
+
+// CanEnableEditor returns true if repository meets the requirements of web editor.
+func (repo *Repository) CanEnableEditor() bool {
+	return !repo.IsMirror
+}
+
+// DescriptionHTML does special handles to description and return HTML string.
+func (repo *Repository) DescriptionHTML() template.HTML {
+	desc, err := markup.RenderDescriptionHTML(&markup.RenderContext{
+		URLPrefix: repo.HTMLURL(),
+		Metas:     repo.ComposeMetas(),
+	}, repo.Description)
+	if err != nil {
+		log.Error("Failed to render description for %s (ID: %d): %v", repo.Name, repo.ID, err)
+		return template.HTML(markup.Sanitize(repo.Description))
+	}
+	return template.HTML(markup.Sanitize(string(desc)))
+}
+
+// CloneLink represents different types of clone URLs of repository.
+type CloneLink struct {
+	SSH   string
+	HTTPS string
+	Git   string
+}
+
+// ComposeHTTPSCloneURL returns HTTPS clone URL based on given owner and repository name.
+func ComposeHTTPSCloneURL(owner, repo string) string {
+	return fmt.Sprintf("%s%s/%s.git", setting.AppURL, url.PathEscape(owner), url.PathEscape(repo))
+}
+
+func (repo *Repository) cloneLink(isWiki bool) *CloneLink {
+	repoName := repo.Name
+	if isWiki {
+		repoName += ".wiki"
+	}
+
+	sshUser := setting.RunUser
+	if setting.SSH.StartBuiltinServer {
+		sshUser = setting.SSH.BuiltinServerUser
+	}
+
+	cl := new(CloneLink)
+
+	// if we have a ipv6 literal we need to put brackets around it
+	// for the git cloning to work.
+	sshDomain := setting.SSH.Domain
+	ip := net.ParseIP(setting.SSH.Domain)
+	if ip != nil && ip.To4() == nil {
+		sshDomain = "[" + setting.SSH.Domain + "]"
+	}
+
+	if setting.SSH.Port != 22 {
+		cl.SSH = fmt.Sprintf("ssh://%s@%s/%s/%s.git", sshUser, net.JoinHostPort(setting.SSH.Domain, strconv.Itoa(setting.SSH.Port)), url.PathEscape(repo.OwnerName), url.PathEscape(repoName))
+	} else if setting.Repository.UseCompatSSHURI {
+		cl.SSH = fmt.Sprintf("ssh://%s@%s/%s/%s.git", sshUser, sshDomain, url.PathEscape(repo.OwnerName), url.PathEscape(repoName))
+	} else {
+		cl.SSH = fmt.Sprintf("%s@%s:%s/%s.git", sshUser, sshDomain, url.PathEscape(repo.OwnerName), url.PathEscape(repoName))
+	}
+	cl.HTTPS = ComposeHTTPSCloneURL(repo.OwnerName, repoName)
+	return cl
+}
+
+// CloneLink returns clone URLs of repository.
+func (repo *Repository) CloneLink() (cl *CloneLink) {
+	return repo.cloneLink(false)
+}
+
+// GetOriginalURLHostname returns the hostname of a URL or the URL
+func (repo *Repository) GetOriginalURLHostname() string {
+	u, err := url.Parse(repo.OriginalURL)
+	if err != nil {
+		return repo.OriginalURL
+	}
+
+	return u.Host
+}
+
+// GetTrustModel will get the TrustModel for the repo or the default trust model
+func (repo *Repository) GetTrustModel() TrustModelType {
+	trustModel := repo.TrustModel
+	if trustModel == DefaultTrustModel {
+		trustModel = ToTrustModel(setting.Repository.Signing.DefaultTrustModel)
+		if trustModel == DefaultTrustModel {
+			return CollaboratorTrustModel
+		}
+	}
+	return trustModel
+}
+
+// GetRepositoryByOwnerAndName returns the repository by given ownername and reponame.
+func GetRepositoryByOwnerAndName(ownerName, repoName string) (*Repository, error) {
+	return GetRepositoryByOwnerAndNameCtx(db.DefaultContext, ownerName, repoName)
+}
+
+// __________                           .__  __
+// \______   \ ____ ______   ____  _____|__|/  |_  ___________ ___.__.
+//  |       _// __ \\____ \ /  _ \/  ___/  \   __\/  _ \_  __ <   |  |
+//  |    |   \  ___/|  |_> >  <_> )___ \|  ||  | (  <_> )  | \/\___  |
+//  |____|_  /\___  >   __/ \____/____  >__||__|  \____/|__|   / ____|
+//         \/     \/|__|              \/                       \/
+
+// ErrRepoNotExist represents a "RepoNotExist" kind of error.
+type ErrRepoNotExist struct {
+	ID        int64
+	UID       int64
+	OwnerName string
+	Name      string
+}
+
+// IsErrRepoNotExist checks if an error is a ErrRepoNotExist.
+func IsErrRepoNotExist(err error) bool {
+	_, ok := err.(ErrRepoNotExist)
+	return ok
+}
+
+func (err ErrRepoNotExist) Error() string {
+	return fmt.Sprintf("repository does not exist [id: %d, uid: %d, owner_name: %s, name: %s]",
+		err.ID, err.UID, err.OwnerName, err.Name)
+}
+
+// GetRepositoryByOwnerAndNameCtx returns the repository by given owner name and repo name
+func GetRepositoryByOwnerAndNameCtx(ctx context.Context, ownerName, repoName string) (*Repository, error) {
+	var repo Repository
+	has, err := db.GetEngine(ctx).Table("repository").Select("repository.*").
+		Join("INNER", "`user`", "`user`.id = repository.owner_id").
+		Where("repository.lower_name = ?", strings.ToLower(repoName)).
+		And("`user`.lower_name = ?", strings.ToLower(ownerName)).
+		Get(&repo)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrRepoNotExist{0, 0, ownerName, repoName}
+	}
+	return &repo, nil
+}
+
+// GetRepositoryByName returns the repository by given name under user if exists.
+func GetRepositoryByName(ownerID int64, name string) (*Repository, error) {
+	repo := &Repository{
+		OwnerID:   ownerID,
+		LowerName: strings.ToLower(name),
+	}
+	has, err := db.GetEngine(db.DefaultContext).Get(repo)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrRepoNotExist{0, ownerID, "", name}
+	}
+	return repo, err
+}
+
+func getRepositoryByID(e db.Engine, id int64) (*Repository, error) {
+	repo := new(Repository)
+	has, err := e.ID(id).Get(repo)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrRepoNotExist{id, 0, "", ""}
+	}
+	return repo, nil
+}
+
+// GetRepositoryByID returns the repository by given id if exists.
+func GetRepositoryByID(id int64) (*Repository, error) {
+	return getRepositoryByID(db.GetEngine(db.DefaultContext), id)
+}
+
+// GetRepositoryByIDCtx returns the repository by given id if exists.
+func GetRepositoryByIDCtx(ctx context.Context, id int64) (*Repository, error) {
+	return getRepositoryByID(db.GetEngine(ctx), id)
+}
+
+// GetRepositoriesMapByIDs returns the repositories by given id slice.
+func GetRepositoriesMapByIDs(ids []int64) (map[int64]*Repository, error) {
+	repos := make(map[int64]*Repository, len(ids))
+	return repos, db.GetEngine(db.DefaultContext).In("id", ids).Find(&repos)
+}
+
+// IsRepositoryExistCtx returns true if the repository with given name under user has already existed.
+func IsRepositoryExistCtx(ctx context.Context, u *user_model.User, repoName string) (bool, error) {
+	has, err := db.GetEngine(ctx).Get(&Repository{
+		OwnerID:   u.ID,
+		LowerName: strings.ToLower(repoName),
+	})
+	if err != nil {
+		return false, err
+	}
+	isDir, err := util.IsDir(RepoPath(u.Name, repoName))
+	return has && isDir, err
+}
+
+// IsRepositoryExist returns true if the repository with given name under user has already existed.
+func IsRepositoryExist(u *user_model.User, repoName string) (bool, error) {
+	return IsRepositoryExistCtx(db.DefaultContext, u, repoName)
+}
+
+// GetTemplateRepo populates repo.TemplateRepo for a generated repository and
+// returns an error on failure (NOTE: no error is returned for
+// non-generated repositories, and TemplateRepo will be left untouched)
+func GetTemplateRepo(repo *Repository) (*Repository, error) {
+	return getTemplateRepo(db.GetEngine(db.DefaultContext), repo)
+}
+
+func getTemplateRepo(e db.Engine, repo *Repository) (*Repository, error) {
+	if !repo.IsGenerated() {
+		return nil, nil
+	}
+
+	return getRepositoryByID(e, repo.TemplateID)
+}
+
+func countRepositories(userID int64, private bool) int64 {
+	sess := db.GetEngine(db.DefaultContext).Where("id > 0")
+
+	if userID > 0 {
+		sess.And("owner_id = ?", userID)
+	}
+	if !private {
+		sess.And("is_private=?", false)
+	}
+
+	count, err := sess.Count(new(Repository))
+	if err != nil {
+		log.Error("countRepositories: %v", err)
+	}
+	return count
+}
+
+// CountRepositories returns number of repositories.
+// Argument private only takes effect when it is false,
+// set it true to count all repositories.
+func CountRepositories(private bool) int64 {
+	return countRepositories(-1, private)
+}
+
+// CountUserRepositories returns number of repositories user owns.
+// Argument private only takes effect when it is false,
+// set it true to count all repositories.
+func CountUserRepositories(userID int64, private bool) int64 {
+	return countRepositories(userID, private)
+}
+
+// GetUserMirrorRepositories returns a list of mirror repositories of given user.
+func GetUserMirrorRepositories(userID int64) ([]*Repository, error) {
+	repos := make([]*Repository, 0, 10)
+	return repos, db.GetEngine(db.DefaultContext).
+		Where("owner_id = ?", userID).
+		And("is_mirror = ?", true).
+		Find(&repos)
+}
+
+func getRepositoryCount(e db.Engine, ownerID int64) (int64, error) {
+	return e.Count(&Repository{OwnerID: ownerID})
+}
+
+func getPublicRepositoryCount(e db.Engine, u *user_model.User) (int64, error) {
+	return e.Where("is_private = ?", false).Count(&Repository{OwnerID: u.ID})
+}
+
+func getPrivateRepositoryCount(e db.Engine, u *user_model.User) (int64, error) {
+	return e.Where("is_private = ?", true).Count(&Repository{OwnerID: u.ID})
+}
+
+// GetRepositoryCount returns the total number of repositories of user.
+func GetRepositoryCount(ctx context.Context, ownerID int64) (int64, error) {
+	return getRepositoryCount(db.GetEngine(ctx), ownerID)
+}
+
+// GetPublicRepositoryCount returns the total number of public repositories of user.
+func GetPublicRepositoryCount(u *user_model.User) (int64, error) {
+	return getPublicRepositoryCount(db.GetEngine(db.DefaultContext), u)
+}
+
+// GetPrivateRepositoryCount returns the total number of private repositories of user.
+func GetPrivateRepositoryCount(u *user_model.User) (int64, error) {
+	return getPrivateRepositoryCount(db.GetEngine(db.DefaultContext), u)
+}
diff --git a/models/repo/repo_indexer.go b/models/repo/repo_indexer.go
new file mode 100644
index 0000000000..f442cad4d1
--- /dev/null
+++ b/models/repo/repo_indexer.go
@@ -0,0 +1,125 @@
+// Copyright 2017 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 repo
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+
+	"xorm.io/builder"
+)
+
+// RepoIndexerType specifies the repository indexer type
+type RepoIndexerType int //revive:disable-line:exported
+
+const (
+	// RepoIndexerTypeCode code indexer
+	RepoIndexerTypeCode RepoIndexerType = iota // 0
+	// RepoIndexerTypeStats repository stats indexer
+	RepoIndexerTypeStats // 1
+)
+
+// RepoIndexerStatus status of a repo's entry in the repo indexer
+// For now, implicitly refers to default branch
+type RepoIndexerStatus struct { //revive:disable-line:exported
+	ID          int64           `xorm:"pk autoincr"`
+	RepoID      int64           `xorm:"INDEX(s)"`
+	CommitSha   string          `xorm:"VARCHAR(40)"`
+	IndexerType RepoIndexerType `xorm:"INDEX(s) NOT NULL DEFAULT 0"`
+}
+
+func init() {
+	db.RegisterModel(new(RepoIndexerStatus))
+}
+
+// GetUnindexedRepos returns repos which do not have an indexer status
+func GetUnindexedRepos(indexerType RepoIndexerType, maxRepoID int64, page, pageSize int) ([]int64, error) {
+	ids := make([]int64, 0, 50)
+	cond := builder.Cond(builder.IsNull{
+		"repo_indexer_status.id",
+	}).And(builder.Eq{
+		"repository.is_empty": false,
+	})
+	sess := db.GetEngine(db.DefaultContext).Table("repository").Join("LEFT OUTER", "repo_indexer_status", "repository.id = repo_indexer_status.repo_id AND repo_indexer_status.indexer_type = ?", indexerType)
+	if maxRepoID > 0 {
+		cond = builder.And(cond, builder.Lte{
+			"repository.id": maxRepoID,
+		})
+	}
+	if page >= 0 && pageSize > 0 {
+		start := 0
+		if page > 0 {
+			start = (page - 1) * pageSize
+		}
+		sess.Limit(pageSize, start)
+	}
+
+	sess.Where(cond).Cols("repository.id").Desc("repository.id")
+	err := sess.Find(&ids)
+	return ids, err
+}
+
+// getIndexerStatus loads repo codes indxer status
+func getIndexerStatus(e db.Engine, repo *Repository, indexerType RepoIndexerType) (*RepoIndexerStatus, error) {
+	switch indexerType {
+	case RepoIndexerTypeCode:
+		if repo.CodeIndexerStatus != nil {
+			return repo.CodeIndexerStatus, nil
+		}
+	case RepoIndexerTypeStats:
+		if repo.StatsIndexerStatus != nil {
+			return repo.StatsIndexerStatus, nil
+		}
+	}
+	status := &RepoIndexerStatus{RepoID: repo.ID}
+	if has, err := e.Where("`indexer_type` = ?", indexerType).Get(status); err != nil {
+		return nil, err
+	} else if !has {
+		status.IndexerType = indexerType
+		status.CommitSha = ""
+	}
+	switch indexerType {
+	case RepoIndexerTypeCode:
+		repo.CodeIndexerStatus = status
+	case RepoIndexerTypeStats:
+		repo.StatsIndexerStatus = status
+	}
+	return status, nil
+}
+
+// GetIndexerStatus loads repo codes indxer status
+func GetIndexerStatus(repo *Repository, indexerType RepoIndexerType) (*RepoIndexerStatus, error) {
+	return getIndexerStatus(db.GetEngine(db.DefaultContext), repo, indexerType)
+}
+
+// updateIndexerStatus updates indexer status
+func updateIndexerStatus(e db.Engine, repo *Repository, indexerType RepoIndexerType, sha string) error {
+	status, err := getIndexerStatus(e, repo, indexerType)
+	if err != nil {
+		return fmt.Errorf("UpdateIndexerStatus: Unable to getIndexerStatus for repo: %s Error: %v", repo.FullName(), err)
+	}
+
+	if len(status.CommitSha) == 0 {
+		status.CommitSha = sha
+		_, err := e.Insert(status)
+		if err != nil {
+			return fmt.Errorf("UpdateIndexerStatus: Unable to insert repoIndexerStatus for repo: %s Sha: %s Error: %v", repo.FullName(), sha, err)
+		}
+		return nil
+	}
+	status.CommitSha = sha
+	_, err = e.ID(status.ID).Cols("commit_sha").
+		Update(status)
+	if err != nil {
+		return fmt.Errorf("UpdateIndexerStatus: Unable to update repoIndexerStatus for repo: %s Sha: %s Error: %v", repo.FullName(), sha, err)
+	}
+	return nil
+}
+
+// UpdateIndexerStatus updates indexer status
+func UpdateIndexerStatus(repo *Repository, indexerType RepoIndexerType, sha string) error {
+	return updateIndexerStatus(db.GetEngine(db.DefaultContext), repo, indexerType, sha)
+}
diff --git a/models/repo/repo_test.go b/models/repo/repo_test.go
new file mode 100644
index 0000000000..6f48a22e49
--- /dev/null
+++ b/models/repo/repo_test.go
@@ -0,0 +1,44 @@
+// Copyright 2017 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 repo
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/unittest"
+	user_model "code.gitea.io/gitea/models/user"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGetRepositoryCount(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+
+	count, err1 := GetRepositoryCount(db.DefaultContext, 10)
+	privateCount, err2 := GetPrivateRepositoryCount(&user_model.User{ID: int64(10)})
+	publicCount, err3 := GetPublicRepositoryCount(&user_model.User{ID: int64(10)})
+	assert.NoError(t, err1)
+	assert.NoError(t, err2)
+	assert.NoError(t, err3)
+	assert.Equal(t, int64(3), count)
+	assert.Equal(t, privateCount+publicCount, count)
+}
+
+func TestGetPublicRepositoryCount(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+
+	count, err := GetPublicRepositoryCount(&user_model.User{ID: int64(10)})
+	assert.NoError(t, err)
+	assert.Equal(t, int64(1), count)
+}
+
+func TestGetPrivateRepositoryCount(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+
+	count, err := GetPrivateRepositoryCount(&user_model.User{ID: int64(10)})
+	assert.NoError(t, err)
+	assert.Equal(t, int64(2), count)
+}
diff --git a/models/repo/repo_unit.go b/models/repo/repo_unit.go
new file mode 100644
index 0000000000..5f6c43f02f
--- /dev/null
+++ b/models/repo/repo_unit.go
@@ -0,0 +1,244 @@
+// Copyright 2017 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 repo
+
+import (
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/models/login"
+	"code.gitea.io/gitea/models/unit"
+	"code.gitea.io/gitea/modules/json"
+	"code.gitea.io/gitea/modules/timeutil"
+
+	"xorm.io/xorm"
+	"xorm.io/xorm/convert"
+)
+
+// ErrUnitTypeNotExist represents a "UnitTypeNotExist" kind of error.
+type ErrUnitTypeNotExist struct {
+	UT unit.Type
+}
+
+// IsErrUnitTypeNotExist checks if an error is a ErrUnitNotExist.
+func IsErrUnitTypeNotExist(err error) bool {
+	_, ok := err.(ErrUnitTypeNotExist)
+	return ok
+}
+
+func (err ErrUnitTypeNotExist) Error() string {
+	return fmt.Sprintf("Unit type does not exist: %s", err.UT.String())
+}
+
+// RepoUnit describes all units of a repository
+type RepoUnit struct { //revive:disable-line:exported
+	ID          int64
+	RepoID      int64              `xorm:"INDEX(s)"`
+	Type        unit.Type          `xorm:"INDEX(s)"`
+	Config      convert.Conversion `xorm:"TEXT"`
+	CreatedUnix timeutil.TimeStamp `xorm:"INDEX CREATED"`
+}
+
+func init() {
+	db.RegisterModel(new(RepoUnit))
+}
+
+// UnitConfig describes common unit config
+type UnitConfig struct{}
+
+// FromDB fills up a UnitConfig from serialized format.
+func (cfg *UnitConfig) FromDB(bs []byte) error {
+	return json.UnmarshalHandleDoubleEncode(bs, &cfg)
+}
+
+// ToDB exports a UnitConfig to a serialized format.
+func (cfg *UnitConfig) ToDB() ([]byte, error) {
+	return json.Marshal(cfg)
+}
+
+// ExternalWikiConfig describes external wiki config
+type ExternalWikiConfig struct {
+	ExternalWikiURL string
+}
+
+// FromDB fills up a ExternalWikiConfig from serialized format.
+func (cfg *ExternalWikiConfig) FromDB(bs []byte) error {
+	return json.UnmarshalHandleDoubleEncode(bs, &cfg)
+}
+
+// ToDB exports a ExternalWikiConfig to a serialized format.
+func (cfg *ExternalWikiConfig) ToDB() ([]byte, error) {
+	return json.Marshal(cfg)
+}
+
+// ExternalTrackerConfig describes external tracker config
+type ExternalTrackerConfig struct {
+	ExternalTrackerURL    string
+	ExternalTrackerFormat string
+	ExternalTrackerStyle  string
+}
+
+// FromDB fills up a ExternalTrackerConfig from serialized format.
+func (cfg *ExternalTrackerConfig) FromDB(bs []byte) error {
+	return json.UnmarshalHandleDoubleEncode(bs, &cfg)
+}
+
+// ToDB exports a ExternalTrackerConfig to a serialized format.
+func (cfg *ExternalTrackerConfig) ToDB() ([]byte, error) {
+	return json.Marshal(cfg)
+}
+
+// IssuesConfig describes issues config
+type IssuesConfig struct {
+	EnableTimetracker                bool
+	AllowOnlyContributorsToTrackTime bool
+	EnableDependencies               bool
+}
+
+// FromDB fills up a IssuesConfig from serialized format.
+func (cfg *IssuesConfig) FromDB(bs []byte) error {
+	return json.UnmarshalHandleDoubleEncode(bs, &cfg)
+}
+
+// ToDB exports a IssuesConfig to a serialized format.
+func (cfg *IssuesConfig) ToDB() ([]byte, error) {
+	return json.Marshal(cfg)
+}
+
+// PullRequestsConfig describes pull requests config
+type PullRequestsConfig struct {
+	IgnoreWhitespaceConflicts     bool
+	AllowMerge                    bool
+	AllowRebase                   bool
+	AllowRebaseMerge              bool
+	AllowSquash                   bool
+	AllowManualMerge              bool
+	AutodetectManualMerge         bool
+	DefaultDeleteBranchAfterMerge bool
+	DefaultMergeStyle             MergeStyle
+}
+
+// FromDB fills up a PullRequestsConfig from serialized format.
+func (cfg *PullRequestsConfig) FromDB(bs []byte) error {
+	return json.UnmarshalHandleDoubleEncode(bs, &cfg)
+}
+
+// ToDB exports a PullRequestsConfig to a serialized format.
+func (cfg *PullRequestsConfig) ToDB() ([]byte, error) {
+	return json.Marshal(cfg)
+}
+
+// IsMergeStyleAllowed returns if merge style is allowed
+func (cfg *PullRequestsConfig) IsMergeStyleAllowed(mergeStyle MergeStyle) bool {
+	return mergeStyle == MergeStyleMerge && cfg.AllowMerge ||
+		mergeStyle == MergeStyleRebase && cfg.AllowRebase ||
+		mergeStyle == MergeStyleRebaseMerge && cfg.AllowRebaseMerge ||
+		mergeStyle == MergeStyleSquash && cfg.AllowSquash ||
+		mergeStyle == MergeStyleManuallyMerged && cfg.AllowManualMerge
+}
+
+// GetDefaultMergeStyle returns the default merge style for this pull request
+func (cfg *PullRequestsConfig) GetDefaultMergeStyle() MergeStyle {
+	if len(cfg.DefaultMergeStyle) != 0 {
+		return cfg.DefaultMergeStyle
+	}
+
+	return MergeStyleMerge
+}
+
+// AllowedMergeStyleCount returns the total count of allowed merge styles for the PullRequestsConfig
+func (cfg *PullRequestsConfig) AllowedMergeStyleCount() int {
+	count := 0
+	if cfg.AllowMerge {
+		count++
+	}
+	if cfg.AllowRebase {
+		count++
+	}
+	if cfg.AllowRebaseMerge {
+		count++
+	}
+	if cfg.AllowSquash {
+		count++
+	}
+	return count
+}
+
+// BeforeSet is invoked from XORM before setting the value of a field of this object.
+func (r *RepoUnit) BeforeSet(colName string, val xorm.Cell) {
+	switch colName {
+	case "type":
+		switch unit.Type(login.Cell2Int64(val)) {
+		case unit.TypeCode, unit.TypeReleases, unit.TypeWiki, unit.TypeProjects:
+			r.Config = new(UnitConfig)
+		case unit.TypeExternalWiki:
+			r.Config = new(ExternalWikiConfig)
+		case unit.TypeExternalTracker:
+			r.Config = new(ExternalTrackerConfig)
+		case unit.TypePullRequests:
+			r.Config = new(PullRequestsConfig)
+		case unit.TypeIssues:
+			r.Config = new(IssuesConfig)
+		default:
+			panic(fmt.Sprintf("unrecognized repo unit type: %v", *val))
+		}
+	}
+}
+
+// Unit returns Unit
+func (r *RepoUnit) Unit() unit.Unit {
+	return unit.Units[r.Type]
+}
+
+// CodeConfig returns config for unit.TypeCode
+func (r *RepoUnit) CodeConfig() *UnitConfig {
+	return r.Config.(*UnitConfig)
+}
+
+// PullRequestsConfig returns config for unit.TypePullRequests
+func (r *RepoUnit) PullRequestsConfig() *PullRequestsConfig {
+	return r.Config.(*PullRequestsConfig)
+}
+
+// ReleasesConfig returns config for unit.TypeReleases
+func (r *RepoUnit) ReleasesConfig() *UnitConfig {
+	return r.Config.(*UnitConfig)
+}
+
+// ExternalWikiConfig returns config for unit.TypeExternalWiki
+func (r *RepoUnit) ExternalWikiConfig() *ExternalWikiConfig {
+	return r.Config.(*ExternalWikiConfig)
+}
+
+// IssuesConfig returns config for unit.TypeIssues
+func (r *RepoUnit) IssuesConfig() *IssuesConfig {
+	return r.Config.(*IssuesConfig)
+}
+
+// ExternalTrackerConfig returns config for unit.TypeExternalTracker
+func (r *RepoUnit) ExternalTrackerConfig() *ExternalTrackerConfig {
+	return r.Config.(*ExternalTrackerConfig)
+}
+
+func getUnitsByRepoID(e db.Engine, repoID int64) (units []*RepoUnit, err error) {
+	var tmpUnits []*RepoUnit
+	if err := e.Where("repo_id = ?", repoID).Find(&tmpUnits); err != nil {
+		return nil, err
+	}
+
+	for _, u := range tmpUnits {
+		if !u.Type.UnitGlobalDisabled() {
+			units = append(units, u)
+		}
+	}
+
+	return units, nil
+}
+
+// UpdateRepoUnit updates the provided repo unit
+func UpdateRepoUnit(unit *RepoUnit) error {
+	_, err := db.GetEngine(db.DefaultContext).ID(unit.ID).Update(unit)
+	return err
+}
diff --git a/models/repo/wiki.go b/models/repo/wiki.go
new file mode 100644
index 0000000000..abf0155cad
--- /dev/null
+++ b/models/repo/wiki.go
@@ -0,0 +1,39 @@
+// Copyright 2015 The Gogs Authors. All rights reserved.
+// Copyright 2020 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 repo
+
+import (
+	"path/filepath"
+	"strings"
+
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/util"
+)
+
+// WikiCloneLink returns clone URLs of repository wiki.
+func (repo *Repository) WikiCloneLink() *CloneLink {
+	return repo.cloneLink(true)
+}
+
+// WikiPath returns wiki data path by given user and repository name.
+func WikiPath(userName, repoName string) string {
+	return filepath.Join(user_model.UserPath(userName), strings.ToLower(repoName)+".wiki.git")
+}
+
+// WikiPath returns wiki data path for given repository.
+func (repo *Repository) WikiPath() string {
+	return WikiPath(repo.OwnerName, repo.Name)
+}
+
+// HasWiki returns true if repository has wiki.
+func (repo *Repository) HasWiki() bool {
+	isDir, err := util.IsDir(repo.WikiPath())
+	if err != nil {
+		log.Error("Unable to check if %s is a directory: %v", repo.WikiPath(), err)
+	}
+	return isDir
+}
diff --git a/models/repo/wiki_test.go b/models/repo/wiki_test.go
new file mode 100644
index 0000000000..72f5280ce5
--- /dev/null
+++ b/models/repo/wiki_test.go
@@ -0,0 +1,45 @@
+// Copyright 2017 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 repo
+
+import (
+	"path/filepath"
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/setting"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRepository_WikiCloneLink(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+
+	repo := unittest.AssertExistsAndLoadBean(t, &Repository{ID: 1}).(*Repository)
+	cloneLink := repo.WikiCloneLink()
+	assert.Equal(t, "ssh://runuser@try.gitea.io:3000/user2/repo1.wiki.git", cloneLink.SSH)
+	assert.Equal(t, "https://try.gitea.io/user2/repo1.wiki.git", cloneLink.HTTPS)
+}
+
+func TestWikiPath(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+	expected := filepath.Join(setting.RepoRootPath, "user2/repo1.wiki.git")
+	assert.Equal(t, expected, WikiPath("user2", "repo1"))
+}
+
+func TestRepository_WikiPath(t *testing.T) {
+	assert.NoError(t, unittest.PrepareTestDatabase())
+	repo := unittest.AssertExistsAndLoadBean(t, &Repository{ID: 1}).(*Repository)
+	expected := filepath.Join(setting.RepoRootPath, "user2/repo1.wiki.git")
+	assert.Equal(t, expected, repo.WikiPath())
+}
+
+func TestRepository_HasWiki(t *testing.T) {
+	unittest.PrepareTestEnv(t)
+	repo1 := unittest.AssertExistsAndLoadBean(t, &Repository{ID: 1}).(*Repository)
+	assert.True(t, repo1.HasWiki())
+	repo2 := unittest.AssertExistsAndLoadBean(t, &Repository{ID: 2}).(*Repository)
+	assert.False(t, repo2.HasWiki())
+}