#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/modules/modproxy.go

@@ -249,7 +249,8 @@ type UpdateOptions struct {
 	Modules  []module.Version
 	Pre      bool
 	Cached   bool
-	Major    bool
+	Major    bool // Major true compare only major
+	UpMajor  bool // UpMajor module up with major
 }
 
 // Updates finds updates for a set of specified modules.
@@ -275,7 +276,14 @@ func Updates(opt UpdateOptions) {
 					ch <- Update{Module: m, Err: err}
 					return nil
 				}
-				v := mod.MaxVersion("", opt.Pre)
+				major := semver.Major(m.Version)
+				var v string
+				switch opt.UpMajor {
+				case true:
+					v = mod.MaxVersion("", opt.Pre)
+				case false:
+					v = mod.MaxVersion(major, opt.Pre)
+				}
 				if IsNewerVersion(m.Version, v, opt.Major) {
 					ch <- Update{Module: m, Version: v}
 				}

internal/modules/packages_test.go

@@ -0,0 +1,55 @@
+package modules
+
+import "testing"
+
+func TestModMajor(t *testing.T) {
+	type args struct {
+		modpath string
+	}
+	var tests = []struct {
+		name  string
+		args  args
+		want  string
+		want1 bool
+	}{
+		{"Test #1",
+			args{
+				"github.com/jackc/chunkreader/v2",
+			},
+			"v2",
+			true,
+		},
+		{"Test #2",
+			args{
+				"github.com/jackc/chunkreader",
+			},
+			"",
+			true,
+		},
+		{"Test #3",
+			args{
+				"gopkg.in/yaml.v2",
+			},
+			"v2",
+			true,
+		},
+		{"Test #4",
+			args{
+				"github.com/jackc/chunkreader/v1",
+			},
+			"",
+			false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, got1 := ModMajor(tt.args.modpath)
+			if got != tt.want {
+				t.Error("ModMajor() got = %v, want %v", got, tt.want)
+			}
+			if got1 != tt.want1 {
+				t.Error("ModMajor() got1 = %v, want %v", got1, tt.want1)
+			}
+		})
+	}
+}