Add v major regexp

src/util/variant.ts

@@ -2,4 +2,5 @@ export enum VariantKey {
   Default = "version_default",
   Dotnet = "version_dotnet",
   Docker = "version_docker",
+  Major = "version_major",
 }

src/util/version.test.ts

@@ -151,7 +151,7 @@ Deno.test({
     const appendTextFile = stub(
       Deno,
       "writeTextFile",
-      resolvesNext(new Array(9)),
+      resolvesNext(new Array(10)),
     );
     try {
       const version = parse("1.2.3-pre.0+1");

src/util/version.ts

@@ -57,11 +57,13 @@ export async function printVersion(
 
 export function variants(version: string) {
   const kabobBuild = version.replace(/[+]/g, "-");
+  const semver = parse(version);
   // todo: add any other platform specific variants here.
   return {
     version_default: version,
     version_dotnet: kabobBuild,
     version_docker: kabobBuild,
+    version_major: `v${semver.major}`,
   };
 }