fix: fix the kcov download link

src/kcov/__tests__/kcov.test.ts

@@ -2,14 +2,27 @@ import { setupKcov } from "../kcov"
 import { setupTmpDir, cleanupTmpDir, testBin } from "../../utils/tests/test-helpers"
 import { InstallationInfo } from "../../utils/setup/setupBin"
 import which from "which"
+import { info } from "@actions/core"
 
 jest.setTimeout(300000)
 describe("setup-Kcov", () => {
-  if (process.platform !== "linux") {
-    it.todo("should setup kcov on non-linux")
+  if (process.platform === "win32") {
+    it.todo("should setup kcov on windows")
     return
   }
 
+  it("should setup Kcov v40", async () => {
+    const directory = await setupTmpDir("kcov-v40")
+    const { binDir } = (await setupKcov("40-binary", directory, "")) as InstallationInfo
+    // the prebuild binary only works on ubuntu 20.04
+    try {
+      await testBin("kcov", ["--version"], binDir)
+    } catch (err) {
+      info((err as Error).message)
+    }
+    await cleanupTmpDir("kcov-v40")
+  })
+
   it("should setup Kcov v40", async () => {
     const directory = await setupTmpDir("kcov-v40")
     const { binDir } = (await setupKcov("40", directory, "")) as InstallationInfo

src/kcov/kcov.ts

@@ -14,7 +14,8 @@ import { isArch } from "../utils/env/isArch"
 import { hasDnf } from "../utils/env/hasDnf"
 import { setupDnfPack } from "../utils/setup/setupDnfPack"
 import { isUbuntu } from "../utils/env/isUbuntu"
-import { removeVPrefix } from "../utils/setup/version"
+import { addVPrefix, removeVPrefix } from "../utils/setup/version"
+import { info } from "../utils/io/io"
 
 function getDownloadKcovPackageInfo(version_number: string): PackageInfo {
   return {
@@ -62,11 +63,14 @@ async function buildKcov(file: string, dest: string) {
 }
 
 export async function setupKcov(versionGiven: string, setupDir: string, arch: string) {
-  switch (process.platform) {
-    case "linux": {
+  if (process.platform === "win32") {
+    info("Kcov is not supported on Windows")
+    return
+  }
+
   // parse version
   const versionSplit = versionGiven.split("-")
-      let version = versionSplit[0]
+  let version = addVPrefix(versionSplit[0])
   const installMethod = versionSplit[1] as "binary" | undefined
   const version_number = removeVPrefix(version)
   // fix inconsistency in tagging
@@ -89,9 +93,4 @@ export async function setupKcov(versionGiven: string, setupDir: string, arch: st
     installationInfo = await setupBin("kcov", version, getBuildKcovPackageInfo, setupDir, arch)
   }
   return installationInfo
-    }
-    default: {
-      throw new Error(`Unsupported platform for ${arch}`)
-    }
-  }
 }

src/utils/setup/version.ts

@@ -119,3 +119,10 @@ export function semverCoerceIfInvalid(version: string) {
 export function removeVPrefix(version: string) {
   return parseInt(version.replace(/^v/, ""), 10)
 }
+
+export function addVPrefix(version: string) {
+  if (!version.match(/^v/)) {
+    return `v${version}`
+  }
+  return version
+}