#2901 allow setting preferred licenses

- Closes #3488

README.md

 
 ![](https://github.com/gogits/gogs/blob/master/public/img/gogs-large-resize.png?raw=true)
 
-##### Current tip version: 0.9.89 (see [Releases](https://github.com/gogits/gogs/releases) for binary versions)
+##### Current tip version: 0.9.90 (see [Releases](https://github.com/gogits/gogs/releases) for binary versions)
 
 | Web | UI  | Preview  |
 |:-------------:|:-------:|:-------:|

conf/app.ini

 MAX_CREATION_LIMIT = -1
 ; Patch test queue length, make it as large as possible
 PULL_REQUEST_QUEUE_LENGTH = 10000
+; Preferred Licenses to place at the top of the List
+; Name must match file name in conf/license or custom/conf/license
+PREFERRED_LICENSES = Apache License 2.0,MIT License
 
 [repository.editor]
 ; List of file extensions that should have line wraps in the CodeMirror editor

gogs.go

 	"github.com/gogits/gogs/modules/setting"
 )
 
-const APP_VER = "0.9.89.0827"
+const APP_VER = "0.9.90.0828"
 
 func init() {
 	runtime.GOMAXPROCS(runtime.NumCPU())

models/repo.go

 
 func LoadRepoConfig() {
 	// Load .gitignore and license files and readme templates.
+	// TODO: should we allow custom files overwrite default ones?
 	types := []string{"gitignore", "license", "readme"}
 	typeFiles := make([][]string, 3)
 	for i, t := range types {
 	sort.Strings(Gitignores)
 	sort.Strings(Licenses)
 	sort.Strings(Readmes)
+
+	// Filter out invalid names and promote preferred licenses.
+	sortedLicenses := make([]string, 0, len(Licenses))
+	for _, name := range setting.Repository.PreferredLicenses {
+		if com.IsSliceContainsStr(Licenses, name) {
+			sortedLicenses = append(sortedLicenses, name)
+		}
+	}
+	for _, name := range Licenses {
+		if !com.IsSliceContainsStr(setting.Repository.PreferredLicenses, name) {
+			sortedLicenses = append(sortedLicenses, name)
+		}
+	}
+	Licenses = sortedLicenses
 }
 
 func NewRepoContext() {

modules/setting/setting.go

 		ForcePrivate           bool
 		MaxCreationLimit       int
 		PullRequestQueueLength int
+		PreferredLicenses      []string
 
 		// Repository editor settings
 		Editor struct {

templates/.VERSION

-0.9.89.0827
+0.9.90.0828