#8 implement interface Source and methods for gitea without Update (#9)

Прикинул метод Open и Delete, Update пока не до делал.

Co-authored-by: Gorbunov Kirill Andreevich <kgorbunov@mtsbank.ru>
Reviewed-on: #9
Co-authored-by: Кирилл Горбунов <kirya_gorbunov_2015@mail.ru>
Co-committed-by: Кирилл Горбунов <kirya_gorbunov_2015@mail.ru>

internal/source/source.go

@@ -0,0 +1,33 @@
+package source
+
+import (
+	"context"
+
+	"git.unistack.org/unistack-org/pkgdash/internal/configcli"
+	"git.unistack.org/unistack-org/pkgdash/internal/modules"
+	"git.unistack.org/unistack-org/pkgdash/internal/source/gitea"
+	"git.unistack.org/unistack-org/pkgdash/internal/source/github"
+	"git.unistack.org/unistack-org/pkgdash/internal/source/gitlab"
+	"git.unistack.org/unistack-org/pkgdash/internal/source/gogs"
+)
+
+type SourceControl interface {
+	RequestOpen(ctx context.Context, branch string, path string, mod modules.Update) error
+	RequestClose(ctx context.Context, branch string, path string) error
+	RequestUpdate(ctx context.Context, branch string, path string, mod modules.Update) error
+	RequestList(ctx context.Context, branch string) (map[string]string, error)
+}
+
+func NewSourceControl(cfg configcli.Config) SourceControl {
+	switch cfg.Source.TypeGit {
+	case "github":
+		return github.NewGithub(cfg)
+	case "gitlab":
+		return gitlab.NewGitlab(cfg)
+	case "gitea":
+		return gitea.NewGitea(cfg)
+	case "gogs":
+		return gogs.NewGogs(cfg)
+	}
+	return nil
+}