Add units concept for modulable functions of a repository (#742)

* Add units concept for modulable functions of a repository

* remove unused comment codes & fix lints and tests

* remove unused comment codes

* use struct config instead of map

* fix lint

* rm wrong files

* fix tests

1 files changed, 137 insertions, 0 deletions

diff --git a/models/unit.go b/models/unit.go
new file mode 100644
index 0000000000..54bb928ba7
--- /dev/null
+++ b/models/unit.go
@@ -0,0 +1,137 @@
+// 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 models
+
+// UnitType is Unit's Type
+type UnitType int
+
+// Enumerate all the unit types
+const (
+	UnitTypeCode            UnitType = iota + 1 // 1 code
+	UnitTypeIssues                              // 2 issues
+	UnitTypePullRequests                        // 3 PRs
+	UnitTypeCommits                             // 4 Commits
+	UnitTypeReleases                            // 5 Releases
+	UnitTypeWiki                                // 6 Wiki
+	UnitTypeSettings                            // 7 Settings
+	UnitTypeExternalWiki                        // 8 ExternalWiki
+	UnitTypeExternalTracker                     // 9 ExternalTracker
+)
+
+// Unit is a tab page of one repository
+type Unit struct {
+	Type    UnitType
+	NameKey string
+	URI     string
+	DescKey string
+	Idx     int
+}
+
+// Enumerate all the units
+var (
+	UnitCode = Unit{
+		UnitTypeCode,
+		"repo.code",
+		"/",
+		"repo.code_desc",
+		0,
+	}
+
+	UnitIssues = Unit{
+		UnitTypeIssues,
+		"repo.issues",
+		"/issues",
+		"repo.issues_desc",
+		1,
+	}
+
+	UnitExternalTracker = Unit{
+		UnitTypeExternalTracker,
+		"repo.issues",
+		"/issues",
+		"repo.issues_desc",
+		1,
+	}
+
+	UnitPullRequests = Unit{
+		UnitTypePullRequests,
+		"repo.pulls",
+		"/pulls",
+		"repo.pulls_desc",
+		2,
+	}
+
+	UnitCommits = Unit{
+		UnitTypeCommits,
+		"repo.commits",
+		"/commits/master",
+		"repo.commits_desc",
+		3,
+	}
+
+	UnitReleases = Unit{
+		UnitTypeReleases,
+		"repo.releases",
+		"/releases",
+		"repo.releases_desc",
+		4,
+	}
+
+	UnitWiki = Unit{
+		UnitTypeWiki,
+		"repo.wiki",
+		"/wiki",
+		"repo.wiki_desc",
+		5,
+	}
+
+	UnitExternalWiki = Unit{
+		UnitTypeExternalWiki,
+		"repo.wiki",
+		"/wiki",
+		"repo.wiki_desc",
+		5,
+	}
+
+	UnitSettings = Unit{
+		UnitTypeSettings,
+		"repo.settings",
+		"/settings",
+		"repo.settings_desc",
+		6,
+	}
+
+	// defaultRepoUnits contains all the default unit types
+	defaultRepoUnits = []UnitType{
+		UnitTypeCode,
+		UnitTypeIssues,
+		UnitTypePullRequests,
+		UnitTypeCommits,
+		UnitTypeReleases,
+		UnitTypeWiki,
+		UnitTypeSettings,
+	}
+
+	// MustRepoUnits contains the units could be disabled currently
+	MustRepoUnits = []UnitType{
+		UnitTypeCode,
+		UnitTypeCommits,
+		UnitTypeReleases,
+		UnitTypeSettings,
+	}
+
+	// Units contains all the units
+	Units = map[UnitType]Unit{
+		UnitTypeCode:            UnitCode,
+		UnitTypeIssues:          UnitIssues,
+		UnitTypeExternalTracker: UnitExternalTracker,
+		UnitTypePullRequests:    UnitPullRequests,
+		UnitTypeCommits:         UnitCommits,
+		UnitTypeReleases:        UnitReleases,
+		UnitTypeWiki:            UnitWiki,
+		UnitTypeExternalWiki:    UnitExternalWiki,
+		UnitTypeSettings:        UnitSettings,
+	}
+)