Add default storage configurations (#12813)

Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: zeripath <art27@cantab.net>

modules/setting/storage.go

@@ -0,0 +1,69 @@
+// 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 setting
+
+import (
+	"strings"
+
+	"code.gitea.io/gitea/modules/log"
+	ini "gopkg.in/ini.v1"
+)
+
+// enumerate all storage types
+const (
+	LocalStorageType = "local"
+	MinioStorageType = "minio"
+)
+
+// Storage represents configuration of storages
+type Storage struct {
+	Type        string
+	Path        string
+	ServeDirect bool
+	Minio       struct {
+		Endpoint        string
+		AccessKeyID     string
+		SecretAccessKey string
+		UseSSL          bool
+		Bucket          string
+		Location        string
+		BasePath        string
+	}
+}
+
+var (
+	storages = make(map[string]Storage)
+)
+
+func getStorage(sec *ini.Section) Storage {
+	var storage Storage
+	storage.Type = sec.Key("STORAGE_TYPE").MustString(LocalStorageType)
+	storage.ServeDirect = sec.Key("SERVE_DIRECT").MustBool(false)
+	switch storage.Type {
+	case LocalStorageType:
+	case MinioStorageType:
+		storage.Minio.Endpoint = sec.Key("MINIO_ENDPOINT").MustString("localhost:9000")
+		storage.Minio.AccessKeyID = sec.Key("MINIO_ACCESS_KEY_ID").MustString("")
+		storage.Minio.SecretAccessKey = sec.Key("MINIO_SECRET_ACCESS_KEY").MustString("")
+		storage.Minio.Bucket = sec.Key("MINIO_BUCKET").MustString("gitea")
+		storage.Minio.Location = sec.Key("MINIO_LOCATION").MustString("us-east-1")
+		storage.Minio.UseSSL = sec.Key("MINIO_USE_SSL").MustBool(false)
+	}
+	return storage
+}
+
+func newStorageService() {
+	sec := Cfg.Section("storage")
+	storages["default"] = getStorage(sec)
+
+	for _, sec := range Cfg.Section("storage").ChildSections() {
+		name := strings.TrimPrefix(sec.Name(), "storage.")
+		if name == "default" || name == LocalStorageType || name == MinioStorageType {
+			log.Error("storage name %s is system reserved!", name)
+			continue
+		}
+		storages[name] = getStorage(sec)
+	}
+}