Move migrating repository from frontend to backend (#6200)

* move migrating to backend

* add loading image when migrating and fix tests

* fix format

* fix lint

* add redis task queue support and improve docs

* add redis vendor

* fix vet

* add database migrations and fix app.ini sample

* add comments for task section on app.ini.sample

* Update models/migrations/v84.go

Co-Authored-By: lunny <xiaolunwen@gmail.com>

* Update models/repo.go

Co-Authored-By: lunny <xiaolunwen@gmail.com>

* move migrating to backend

* add loading image when migrating and fix tests

* fix fmt

* add redis task queue support and improve docs

* fix fixtures

* fix fixtures

* fix duplicate function on index.js

* fix tests

* rename repository statuses

* check if repository is being create when SSH request

* fix lint

* fix template

* some improvements

* fix template

* unified migrate options

* fix lint

* fix loading page

* refactor

* When gitea restart, don't restart the running tasks because we may have servel gitea instances, that may break the migration

* fix js

* Update models/repo.go

Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>

* Update docs/content/doc/advanced/config-cheat-sheet.en-us.md

Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>

* fix tests

* rename ErrTaskIsNotExist to ErrTaskDoesNotExist

* delete release after add one on tests to make it run happy

* fix tests

* fix tests

* improve codes

* fix lint

* fix lint

* fix migrations

2 files changed, 104 insertions, 71 deletions

diff --git a/templates/repo/header.tmpl b/templates/repo/header.tmpl
index fc7f1b660c..9fb3e32899 100644
--- a/templates/repo/header.tmpl
+++ b/templates/repo/header.tmpl
@@ -16,93 +16,95 @@
 				{{if .IsMirror}}<div class="fork-flag">{{$.i18n.Tr "repo.mirror_from"}} <a target="_blank" rel="noopener noreferrer" href="{{MirrorAddress $.Mirror}}">{{MirrorAddress $.Mirror}}</a></div>{{end}}
 				{{if .IsFork}}<div class="fork-flag">{{$.i18n.Tr "repo.forked_from"}} <a href="{{.BaseRepo.Link}}">{{SubStr .BaseRepo.RelLink 1 -1}}</a></div>{{end}}
 			</div>
-			<div class="repo-buttons">
-				<div class="ui labeled button" tabindex="0">
-					<a class="ui compact basic button" href="{{$.RepoLink}}/action/{{if $.IsWatchingRepo}}un{{end}}watch?redirect_to={{$.Link}}">
-						<i class="icon fa-eye{{if not $.IsWatchingRepo}}-slash{{end}}"></i>{{if $.IsWatchingRepo}}{{$.i18n.Tr "repo.unwatch"}}{{else}}{{$.i18n.Tr "repo.watch"}}{{end}}
-					</a>
-					<a class="ui basic label" href="{{.Link}}/watchers">
-						{{.NumWatches}}
-					</a>
-				</div>
-				<div class="ui labeled button" tabindex="0">
-					<a class="ui compact basic button" href="{{$.RepoLink}}/action/{{if $.IsStaringRepo}}un{{end}}star?redirect_to={{$.Link}}">
-						<i class="icon star{{if not $.IsStaringRepo}} outline{{end}}"></i>{{if $.IsStaringRepo}}{{$.i18n.Tr "repo.unstar"}}{{else}}{{$.i18n.Tr "repo.star"}}{{end}}
-					</a>
-					<a class="ui basic label" href="{{.Link}}/stars">
-						{{.NumStars}}
-					</a>
-				</div>
-				{{if and (not .IsEmpty) ($.Permission.CanRead $.UnitTypeCode)}}
-					<div class="ui labeled button {{if and ($.IsSigned) (not $.CanSignedUserFork)}}disabled-repo-button{{end}}" tabindex="0">
-						<a class="ui compact basic button {{if or (not $.IsSigned) (not $.CanSignedUserFork)}}poping up{{end}}" {{if $.CanSignedUserFork}}href="{{AppSubUrl}}/repo/fork/{{.ID}}"{{else if $.IsSigned}} data-content="{{$.i18n.Tr "repo.fork_from_self"}}" {{ else }} data-content="{{$.i18n.Tr "repo.fork_guest_user" }}" href="{{AppSubUrl}}/user/login?redirect_to={{AppSubUrl}}/repo/fork/{{.ID}}" {{end}} data-position="top center" data-variation="tiny">
-							<i class="octicon octicon-repo-forked"></i>{{$.i18n.Tr "repo.fork"}}
+			{{if not .IsBeingCreated}}
+				<div class="repo-buttons">
+					<div class="ui labeled button" tabindex="0">
+						<a class="ui compact basic button" href="{{$.RepoLink}}/action/{{if $.IsWatchingRepo}}un{{end}}watch?redirect_to={{$.Link}}">
+							<i class="icon fa-eye{{if not $.IsWatchingRepo}}-slash{{end}}"></i>{{if $.IsWatchingRepo}}{{$.i18n.Tr "repo.unwatch"}}{{else}}{{$.i18n.Tr "repo.watch"}}{{end}}
 						</a>
-						<a class="ui basic label" href="{{.Link}}/forks">
-							{{.NumForks}}
+						<a class="ui basic label" href="{{.Link}}/watchers">
+							{{.NumWatches}}
 						</a>
 					</div>
-				{{end}}
-			</div>
+					<div class="ui labeled button" tabindex="0">
+						<a class="ui compact basic button" href="{{$.RepoLink}}/action/{{if $.IsStaringRepo}}un{{end}}star?redirect_to={{$.Link}}">
+							<i class="icon star{{if not $.IsStaringRepo}} outline{{end}}"></i>{{if $.IsStaringRepo}}{{$.i18n.Tr "repo.unstar"}}{{else}}{{$.i18n.Tr "repo.star"}}{{end}}
+						</a>
+						<a class="ui basic label" href="{{.Link}}/stars">
+							{{.NumStars}}
+						</a>
+					</div>
+					{{if and (not .IsEmpty) ($.Permission.CanRead $.UnitTypeCode)}}
+						<div class="ui labeled button {{if and ($.IsSigned) (not $.CanSignedUserFork)}}disabled-repo-button{{end}}" tabindex="0">
+							<a class="ui compact basic button {{if or (not $.IsSigned) (not $.CanSignedUserFork)}}poping up{{end}}" {{if $.CanSignedUserFork}}href="{{AppSubUrl}}/repo/fork/{{.ID}}"{{else if $.IsSigned}} data-content="{{$.i18n.Tr "repo.fork_from_self"}}" {{ else }} data-content="{{$.i18n.Tr "repo.fork_guest_user" }}" href="{{AppSubUrl}}/user/login?redirect_to={{AppSubUrl}}/repo/fork/{{.ID}}" {{end}} data-position="top center" data-variation="tiny">
+								<i class="octicon octicon-repo-forked"></i>{{$.i18n.Tr "repo.fork"}}
+							</a>
+							<a class="ui basic label" href="{{.Link}}/forks">
+								{{.NumForks}}
+							</a>
+						</div>
+					{{end}}
+				</div>
+			{{end}}
 		</div><!-- end grid -->
 	</div><!-- end container -->
 {{end}}
-
 	<div class="ui tabs container">
-		<div class="ui tabular stackable menu navbar">
-			{{if .Permission.CanRead $.UnitTypeCode}}
-			<a class="{{if .PageIsViewCode}}active{{end}} item" href="{{.RepoLink}}{{if (ne .BranchName .Repository.DefaultBranch)}}/src/{{.BranchNameSubURL | EscapePound}}{{end}}">
-				<i class="octicon octicon-code"></i> {{.i18n.Tr "repo.code"}}
-			</a>
-			{{end}}
-
-			{{if .Permission.CanRead $.UnitTypeIssues}}
-				<a class="{{if .PageIsIssueList}}active{{end}} item" href="{{.RepoLink}}/issues">
-					<i class="octicon octicon-issue-opened"></i> {{.i18n.Tr "repo.issues"}} <span class="ui {{if not .Repository.NumOpenIssues}}gray{{else}}blue{{end}} small label">{{.Repository.NumOpenIssues}}</span>
+		{{if not .Repository.IsBeingCreated}}
+			<div class="ui tabular stackable menu navbar">
+				{{if .Permission.CanRead $.UnitTypeCode}}
+				<a class="{{if .PageIsViewCode}}active{{end}} item" href="{{.RepoLink}}{{if (ne .BranchName .Repository.DefaultBranch)}}/src/{{.BranchNameSubURL | EscapePound}}{{end}}">
+					<i class="octicon octicon-code"></i> {{.i18n.Tr "repo.code"}}
 				</a>
-			{{end}}
-
-			{{if .Permission.CanRead $.UnitTypeExternalTracker}}
-				<a class="{{if .PageIsIssueList}}active{{end}} item" href="{{.RepoExternalIssuesLink}}" target="_blank" rel="noopener noreferrer">
-					<i class="octicon octicon-link-external"></i> {{.i18n.Tr "repo.issues"}} </span>
-				</a>
-			{{end}}
+				{{end}}
 
-			{{if and .Repository.CanEnablePulls (.Permission.CanRead $.UnitTypePullRequests)}}
-				<a class="{{if .PageIsPullList}}active{{end}} item" href="{{.RepoLink}}/pulls">
-					<i class="octicon octicon-git-pull-request"></i> {{.i18n.Tr "repo.pulls"}} <span class="ui {{if not .Repository.NumOpenPulls}}gray{{else}}blue{{end}} small label">{{.Repository.NumOpenPulls}}</span>
-				</a>
-			{{end}}
+				{{if .Permission.CanRead $.UnitTypeIssues}}
+					<a class="{{if .PageIsIssueList}}active{{end}} item" href="{{.RepoLink}}/issues">
+						<i class="octicon octicon-issue-opened"></i> {{.i18n.Tr "repo.issues"}} <span class="ui {{if not .Repository.NumOpenIssues}}gray{{else}}blue{{end}} small label">{{.Repository.NumOpenIssues}}</span>
+					</a>
+				{{end}}
 
-			{{if and (.Permission.CanRead $.UnitTypeReleases) (not .IsEmptyRepo) }}
-			<a class="{{if .PageIsReleaseList}}active{{end}} item" href="{{.RepoLink}}/releases">
-				<i class="octicon octicon-tag"></i> {{.i18n.Tr "repo.releases"}} <span class="ui {{if not .Repository.NumReleases}}gray{{else}}blue{{end}} small label">{{.Repository.NumReleases}}</span>
-			</a>
-			{{end}}
+				{{if .Permission.CanRead $.UnitTypeExternalTracker}}
+					<a class="{{if .PageIsIssueList}}active{{end}} item" href="{{.RepoExternalIssuesLink}}" target="_blank" rel="noopener noreferrer">
+						<i class="octicon octicon-link-external"></i> {{.i18n.Tr "repo.issues"}} </span>
+					</a>
+				{{end}}
 
-			{{if or (.Permission.CanRead $.UnitTypeWiki) (.Permission.CanRead $.UnitTypeExternalWiki)}}
-				<a class="{{if .PageIsWiki}}active{{end}} item" href="{{.RepoLink}}/wiki" {{if (.Permission.CanRead $.UnitTypeExternalWiki)}} target="_blank" rel="noopener noreferrer" {{end}}>
-					<i class="octicon octicon-book"></i> {{.i18n.Tr "repo.wiki"}}
-				</a>
-			{{end}}
+				{{if and .Repository.CanEnablePulls (.Permission.CanRead $.UnitTypePullRequests)}}
+					<a class="{{if .PageIsPullList}}active{{end}} item" href="{{.RepoLink}}/pulls">
+						<i class="octicon octicon-git-pull-request"></i> {{.i18n.Tr "repo.pulls"}} <span class="ui {{if not .Repository.NumOpenPulls}}gray{{else}}blue{{end}} small label">{{.Repository.NumOpenPulls}}</span>
+					</a>
+				{{end}}
 
-			{{if and (.Permission.CanReadAny $.UnitTypePullRequests $.UnitTypeIssues $.UnitTypeReleases) (not .IsEmptyRepo)}}
-				<a class="{{if .PageIsActivity}}active{{end}} item" href="{{.RepoLink}}/activity">
-					<i class="octicon octicon-pulse"></i> {{.i18n.Tr "repo.activity"}}
+				{{if and (.Permission.CanRead $.UnitTypeReleases) (not .IsEmptyRepo) }}
+				<a class="{{if .PageIsReleaseList}}active{{end}} item" href="{{.RepoLink}}/releases">
+					<i class="octicon octicon-tag"></i> {{.i18n.Tr "repo.releases"}} <span class="ui {{if not .Repository.NumReleases}}gray{{else}}blue{{end}} small label">{{.Repository.NumReleases}}</span>
 				</a>
-			{{end}}
+				{{end}}
 
-			{{template "custom/extra_tabs" .}}
+				{{if or (.Permission.CanRead $.UnitTypeWiki) (.Permission.CanRead $.UnitTypeExternalWiki)}}
+					<a class="{{if .PageIsWiki}}active{{end}} item" href="{{.RepoLink}}/wiki" {{if (.Permission.CanRead $.UnitTypeExternalWiki)}} target="_blank" rel="noopener noreferrer" {{end}}>
+						<i class="octicon octicon-book"></i> {{.i18n.Tr "repo.wiki"}}
+					</a>
+				{{end}}
 
-			{{if .Permission.IsAdmin}}
-				<div class="right menu">
-					<a class="{{if .PageIsSettings}}active{{end}} item" href="{{.RepoLink}}/settings">
-						<i class="octicon octicon-tools"></i> {{.i18n.Tr "repo.settings"}}
+				{{if and (.Permission.CanReadAny $.UnitTypePullRequests $.UnitTypeIssues $.UnitTypeReleases) (not .IsEmptyRepo)}}
+					<a class="{{if .PageIsActivity}}active{{end}} item" href="{{.RepoLink}}/activity">
+						<i class="octicon octicon-pulse"></i> {{.i18n.Tr "repo.activity"}}
 					</a>
-				</div>
-			{{end}}
-		</div>
+				{{end}}
+
+				{{template "custom/extra_tabs" .}}
+
+				{{if .Permission.IsAdmin}}
+					<div class="right menu">
+						<a class="{{if .PageIsSettings}}active{{end}} item" href="{{.RepoLink}}/settings">
+							<i class="octicon octicon-tools"></i> {{.i18n.Tr "repo.settings"}}
+						</a>
+					</div>
+				{{end}}
+			</div>
+		{{end}}
 	</div>
 	<div class="ui tabs divider"></div>
-
 </div>
diff --git a/templates/repo/migrating.tmpl b/templates/repo/migrating.tmpl
new file mode 100644
index 0000000000..34031d5653
--- /dev/null
+++ b/templates/repo/migrating.tmpl
@@ -0,0 +1,31 @@
+{{template "base/head" .}}
+<div class="repository quickstart">
+	{{template "repo/header" .}}
+	<div class="ui container">
+		<div class="ui grid">
+			<div class="sixteen wide column content">
+				{{template "base/alert" .}}
+				<div class="home">
+					<div class="ui stackable middle very relaxed page grid">
+						<div id="repo_migrating" class="sixteen wide center aligned centered column" repo="{{.Repo.Repository.FullName}}">
+							<div>
+								<img src="{{AppSubUrl}}/img/loading.png"/>
+							</div>
+						</div>
+					</div>
+					<div class="ui stackable middle very relaxed page grid">
+						<div class="sixteen wide center aligned centered column">
+							<div id="repo_migrating_progress">
+								<p>{{.i18n.Tr "repo.migrate.migrating" .CloneAddr | Safe}}</p>
+							</div>
+							<div id="repo_migrating_failed">
+								<p>{{.i18n.Tr "repo.migrate.migrating_failed" .CloneAddr | Safe}}</p>
+							</div>
+						</div>
+					</div>
+				</div>
+			</div>
+		</div>
+	</div>
+</div>
+{{template "base/footer" .}}