add short version

Author: bbengfort

semver/semver.go

@@ -82,6 +82,10 @@ func (v Version) String() string {
 	return vers
 }
 
+func (v Version) Short() string {
+	return fmt.Sprintf("%d.%d.%d", v.Major, v.Minor, v.Patch)
+}
+
 func (v Version) IsZero() bool {
 	return v.Major == 0 && v.Minor == 0 && v.Patch == 0 && v.PreRelease == "" && v.BuildMeta == ""
 }

semver/semver_test.go

@@ -119,6 +119,12 @@ func TestIsZero(t *testing.T) {
 	assert.False(t, Version{Major: 1}.IsZero(), "expected non-zero value to not be zero")
 }
 
+func TestShort(t *testing.T) {
+	v := Version{Major: 1, Minor: 2, Patch: 3, PreRelease: "alpha.4", BuildMeta: "exp.sha.5114f85"}
+	assert.Equal(t, "1.2.3-alpha.4+exp.sha.5114f85", v.String(), "expected string representation to match")
+	assert.Equal(t, "1.2.3", v.Short(), "expected short string representation to match")
+}
+
 func TestSpecifies(t *testing.T) {
 	// This test is covered more extensively in range tests.
 	ver := MustParse("1.2.3")