chore: update var name (googleapis#3969)

Replace `SemVerSpecV1` and `SemVerSpecV2` to `SpecV1` and `SpecV2`,
respectively to comply with Go naming convention.

Author: JoeWang1127

internal/semver/semver.go

@@ -27,13 +27,13 @@ import (
 )
 
 const (
-	// SemVerSpecV2 corresponds to SemVer spec version 2.0.0
-	// https://semver.org/spec/v2.0.0.html.
-	SemVerSpecV2 = "2.0.0"
+	// SpecV1 is the string for Semantic Versioning 1.0.0.
+	// See https://semver.org/spec/v1.0.0.html.
+	SpecV1 = "1.0.0"
 
-	// SemVerSpecV1 corresponds to SemVer spec version 1.0.0
-	// https://semver.org/spec/v1.0.0.html.
-	SemVerSpecV1 = "1.0.0"
+	// SpecV2 is the string for Semantic Versioning 2.0.0.
+	// See https://semver.org/spec/v2.0.0.html.
+	SpecV2 = "2.0.0"
 )
 
 // version represents a semantic version.
@@ -98,7 +98,7 @@ func parse(versionString string) (version, error) {
 
 	var err error
 	v := version{
-		SpecVersion: SemVerSpecV2,
+		SpecVersion: SpecV2,
 	}
 
 	v.Major, err = strconv.Atoi(vParts[0])
@@ -132,7 +132,7 @@ func parse(versionString string) (version, error) {
 	} else if matches := semverV1PrereleaseNumberRegexp.FindStringSubmatch(prerelease); len(matches) == 3 {
 		v.Prerelease = matches[1]
 		numStr = matches[2]
-		v.SpecVersion = SemVerSpecV1
+		v.SpecVersion = SpecV1
 	} else {
 		v.Prerelease = prerelease
 	}
@@ -187,7 +187,7 @@ func (o stringifyOptions) Stringify(v version) string {
 
 		if v.PrereleaseNumber != nil {
 			var numStr string
-			if v.SpecVersion == SemVerSpecV1 {
+			if v.SpecVersion == SpecV1 {
 				numStr = fmt.Sprintf("%02d", *v.PrereleaseNumber)
 			} else {
 				numStr = strconv.Itoa(*v.PrereleaseNumber)

internal/semver/semver_test.go

@@ -38,7 +38,7 @@ func TestParse(t *testing.T) {
 				Major:       1,
 				Minor:       2,
 				Patch:       3,
-				SpecVersion: SemVerSpecV2,
+				SpecVersion: SpecV2,
 			},
 		},
 		{
@@ -51,7 +51,7 @@ func TestParse(t *testing.T) {
 				Prerelease:          "alpha",
 				PrereleaseSeparator: ".",
 				PrereleaseNumber:    ptr(1),
-				SpecVersion:         SemVerSpecV2,
+				SpecVersion:         SpecV2,
 			},
 		},
 		{
@@ -63,7 +63,7 @@ func TestParse(t *testing.T) {
 				Patch:            3,
 				Prerelease:       "beta",
 				PrereleaseNumber: ptr(21),
-				SpecVersion:      SemVerSpecV1,
+				SpecVersion:      SpecV1,
 			},
 		},
 		{
@@ -74,7 +74,7 @@ func TestParse(t *testing.T) {
 				Minor:       2,
 				Patch:       3,
 				Prerelease:  "beta",
-				SpecVersion: SemVerSpecV2,
+				SpecVersion: SpecV2,
 			},
 		},
 		{
@@ -84,7 +84,7 @@ func TestParse(t *testing.T) {
 				Major:       1,
 				Minor:       2,
 				Patch:       0,
-				SpecVersion: SemVerSpecV2,
+				SpecVersion: SpecV2,
 			},
 		},
 		{
@@ -96,7 +96,7 @@ func TestParse(t *testing.T) {
 				Patch:            3,
 				Prerelease:       "alpha",
 				PrereleaseNumber: ptr(1),
-				SpecVersion:      SemVerSpecV1,
+				SpecVersion:      SpecV1,
 			},
 		},
 		{
@@ -108,7 +108,7 @@ func TestParse(t *testing.T) {
 				Patch:            3,
 				Prerelease:       "beta",
 				PrereleaseNumber: ptr(2),
-				SpecVersion:      SemVerSpecV1,
+				SpecVersion:      SpecV1,
 			},
 		},
 		{
@@ -120,7 +120,7 @@ func TestParse(t *testing.T) {
 				Patch:            3,
 				Prerelease:       "rc",
 				PrereleaseNumber: ptr(3),
-				SpecVersion:      SemVerSpecV1,
+				SpecVersion:      SpecV1,
 			},
 		},
 		{
@@ -132,7 +132,7 @@ func TestParse(t *testing.T) {
 				Patch:            3,
 				Prerelease:       "preview",
 				PrereleaseNumber: ptr(4),
-				SpecVersion:      SemVerSpecV1,
+				SpecVersion:      SpecV1,
 			},
 		},
 		{
@@ -144,7 +144,7 @@ func TestParse(t *testing.T) {
 				Patch:            3,
 				Prerelease:       "a",
 				PrereleaseNumber: ptr(5),
-				SpecVersion:      SemVerSpecV1,
+				SpecVersion:      SpecV1,
 			},
 		},
 		{
@@ -156,7 +156,7 @@ func TestParse(t *testing.T) {
 				Patch:            3,
 				Prerelease:       "b",
 				PrereleaseNumber: ptr(6),
-				SpecVersion:      SemVerSpecV1,
+				SpecVersion:      SpecV1,
 			},
 		},
 	} {
@@ -298,7 +298,7 @@ func TestVersion_String(t *testing.T) {
 				Patch:            3,
 				Prerelease:       "beta",
 				PrereleaseNumber: ptr(21),
-				SpecVersion:      SemVerSpecV1,
+				SpecVersion:      SpecV1,
 			},
 			expected: "1.2.3-beta21",
 		},
@@ -310,7 +310,7 @@ func TestVersion_String(t *testing.T) {
 				Patch:            3,
 				Prerelease:       "beta",
 				PrereleaseNumber: ptr(2),
-				SpecVersion:      SemVerSpecV1,
+				SpecVersion:      SpecV1,
 			},
 			expected: "1.2.3-beta02",
 		},