Use BSD tar on windows

__tests__/restore.test.ts

@@ -1,18 +1,16 @@
 import * as core from "@actions/core";
-import * as exec from "@actions/exec";
-import * as io from "@actions/io";
 import * as path from "path";
 import * as cacheHttpClient from "../src/cacheHttpClient";
 import { Events, Inputs } from "../src/constants";
 import { ArtifactCacheEntry } from "../src/contracts";
 import run from "../src/restore";
+import * as tar from "../src/tar";
 import * as actionUtils from "../src/utils/actionUtils";
 import * as testUtils from "../src/utils/testUtils";
 
-jest.mock("@actions/exec");
-jest.mock("@actions/io");
-jest.mock("../src/utils/actionUtils");
 jest.mock("../src/cacheHttpClient");
+jest.mock("../src/tar");
+jest.mock("../src/utils/actionUtils");
 
 beforeAll(() => {
     jest.spyOn(actionUtils, "resolvePath").mockImplementation(filePath => {
@@ -35,10 +33,6 @@ beforeAll(() => {
         const actualUtils = jest.requireActual("../src/utils/actionUtils");
         return actualUtils.getSupportedEvents();
     });
-
-    jest.spyOn(io, "which").mockImplementation(tool => {
-        return Promise.resolve(tool);
-    });
 });
 
 beforeEach(() => {
@@ -245,8 +239,7 @@ test("restore with cache found", async () => {
         .spyOn(actionUtils, "getArchiveFileSize")
         .mockReturnValue(fileSize);
 
-    const mkdirMock = jest.spyOn(io, "mkdirP");
-    const execMock = jest.spyOn(exec, "exec");
+    const extractTarMock = jest.spyOn(tar, "extractTar");
     const setCacheHitOutputMock = jest.spyOn(actionUtils, "setCacheHitOutput");
 
     await run();
@@ -257,22 +250,9 @@ test("restore with cache found", async () => {
     expect(createTempDirectoryMock).toHaveBeenCalledTimes(1);
     expect(downloadCacheMock).toHaveBeenCalledWith(cacheEntry, archivePath);
     expect(getArchiveFileSizeMock).toHaveBeenCalledWith(archivePath);
-    expect(mkdirMock).toHaveBeenCalledWith(cachePath);
 
-    const IS_WINDOWS = process.platform === "win32";
-    const args = IS_WINDOWS
-        ? [
-              "-xz",
-              "--force-local",
-              "-f",
-              archivePath.replace(/\\/g, "/"),
-              "-C",
-              cachePath.replace(/\\/g, "/")
-          ]
-        : ["-xz", "-f", archivePath, "-C", cachePath];
-
-    expect(execMock).toHaveBeenCalledTimes(1);
-    expect(execMock).toHaveBeenCalledWith(`"tar"`, args);
+    expect(extractTarMock).toHaveBeenCalledTimes(1);
+    expect(extractTarMock).toHaveBeenCalledWith(archivePath, cachePath);
 
     expect(setCacheHitOutputMock).toHaveBeenCalledTimes(1);
     expect(setCacheHitOutputMock).toHaveBeenCalledWith(true);
@@ -323,8 +303,7 @@ test("restore with a pull request event and cache found", async () => {
         .spyOn(actionUtils, "getArchiveFileSize")
         .mockReturnValue(fileSize);
 
-    const mkdirMock = jest.spyOn(io, "mkdirP");
-    const execMock = jest.spyOn(exec, "exec");
+    const extractTarMock = jest.spyOn(tar, "extractTar");
     const setCacheHitOutputMock = jest.spyOn(actionUtils, "setCacheHitOutput");
 
     await run();
@@ -336,22 +315,9 @@ test("restore with a pull request event and cache found", async () => {
     expect(downloadCacheMock).toHaveBeenCalledWith(cacheEntry, archivePath);
     expect(getArchiveFileSizeMock).toHaveBeenCalledWith(archivePath);
     expect(infoMock).toHaveBeenCalledWith(`Cache Size: ~60 MB (62915000 B)`);
-    expect(mkdirMock).toHaveBeenCalledWith(cachePath);
 
-    const IS_WINDOWS = process.platform === "win32";
-    const args = IS_WINDOWS
-        ? [
-              "-xz",
-              "--force-local",
-              "-f",
-              archivePath.replace(/\\/g, "/"),
-              "-C",
-              cachePath.replace(/\\/g, "/")
-          ]
-        : ["-xz", "-f", archivePath, "-C", cachePath];
-
-    expect(execMock).toHaveBeenCalledTimes(1);
-    expect(execMock).toHaveBeenCalledWith(`"tar"`, args);
+    expect(extractTarMock).toHaveBeenCalledTimes(1);
+    expect(extractTarMock).toHaveBeenCalledWith(archivePath, cachePath);
 
     expect(setCacheHitOutputMock).toHaveBeenCalledTimes(1);
     expect(setCacheHitOutputMock).toHaveBeenCalledWith(true);
@@ -402,8 +368,7 @@ test("restore with cache found for restore key", async () => {
         .spyOn(actionUtils, "getArchiveFileSize")
         .mockReturnValue(fileSize);
 
-    const mkdirMock = jest.spyOn(io, "mkdirP");
-    const execMock = jest.spyOn(exec, "exec");
+    const extractTarMock = jest.spyOn(tar, "extractTar");
     const setCacheHitOutputMock = jest.spyOn(actionUtils, "setCacheHitOutput");
 
     await run();
@@ -415,22 +380,9 @@ test("restore with cache found for restore key", async () => {
     expect(downloadCacheMock).toHaveBeenCalledWith(cacheEntry, archivePath);
     expect(getArchiveFileSizeMock).toHaveBeenCalledWith(archivePath);
     expect(infoMock).toHaveBeenCalledWith(`Cache Size: ~0 MB (142 B)`);
-    expect(mkdirMock).toHaveBeenCalledWith(cachePath);
 
-    const IS_WINDOWS = process.platform === "win32";
-    const args = IS_WINDOWS
-        ? [
-              "-xz",
-              "--force-local",
-              "-f",
-              archivePath.replace(/\\/g, "/"),
-              "-C",
-              cachePath.replace(/\\/g, "/")
-          ]
-        : ["-xz", "-f", archivePath, "-C", cachePath];
-
-    expect(execMock).toHaveBeenCalledTimes(1);
-    expect(execMock).toHaveBeenCalledWith(`"tar"`, args);
+    expect(extractTarMock).toHaveBeenCalledTimes(1);
+    expect(extractTarMock).toHaveBeenCalledWith(archivePath, cachePath);
 
     expect(setCacheHitOutputMock).toHaveBeenCalledTimes(1);
     expect(setCacheHitOutputMock).toHaveBeenCalledWith(false);

__tests__/save.test.ts

@@ -1,19 +1,17 @@
 import * as core from "@actions/core";
-import * as exec from "@actions/exec";
-import * as io from "@actions/io";
 import * as path from "path";
 import * as cacheHttpClient from "../src/cacheHttpClient";
 import { Events, Inputs } from "../src/constants";
 import { ArtifactCacheEntry } from "../src/contracts";
 import run from "../src/save";
+import * as tar from "../src/tar";
 import * as actionUtils from "../src/utils/actionUtils";
 import * as testUtils from "../src/utils/testUtils";
 
 jest.mock("@actions/core");
-jest.mock("@actions/exec");
-jest.mock("@actions/io");
-jest.mock("../src/utils/actionUtils");
 jest.mock("../src/cacheHttpClient");
+jest.mock("../src/tar");
+jest.mock("../src/utils/actionUtils");
 
 beforeAll(() => {
     jest.spyOn(core, "getInput").mockImplementation((name, options) => {
@@ -49,10 +47,6 @@ beforeAll(() => {
     jest.spyOn(actionUtils, "createTempDirectory").mockImplementation(() => {
         return Promise.resolve("/foo/bar");
     });
-
-    jest.spyOn(io, "which").mockImplementation(tool => {
-        return Promise.resolve(tool);
-    });
 });
 
 beforeEach(() => {
@@ -128,7 +122,7 @@ test("save with exact match returns early", async () => {
             return primaryKey;
         });
 
-    const execMock = jest.spyOn(exec, "exec");
+    const createTarMock = jest.spyOn(tar, "createTar");
 
     await run();
 
@@ -136,7 +130,7 @@ test("save with exact match returns early", async () => {
         `Cache hit occurred on the primary key ${primaryKey}, not saving cache.`
     );
 
-    expect(execMock).toHaveBeenCalledTimes(0);
+    expect(createTarMock).toHaveBeenCalledTimes(0);
 
     expect(failedMock).toHaveBeenCalledTimes(0);
 });
@@ -198,7 +192,7 @@ test("save with large cache outputs warning", async () => {
     const cachePath = path.resolve(inputPath);
     testUtils.setInput(Inputs.Path, inputPath);
 
-    const execMock = jest.spyOn(exec, "exec");
+    const createTarMock = jest.spyOn(tar, "createTar");
 
     const cacheSize = 1024 * 1024 * 1024; //~1GB, over the 400MB limit
     jest.spyOn(actionUtils, "getArchiveFileSize").mockImplementationOnce(() => {
@@ -209,21 +203,8 @@ test("save with large cache outputs warning", async () => {
 
     const archivePath = path.join("/foo/bar", "cache.tgz");
 
-    const IS_WINDOWS = process.platform === "win32";
-    const args = IS_WINDOWS
-        ? [
-              "-cz",
-              "--force-local",
-              "-f",
-              archivePath.replace(/\\/g, "/"),
-              "-C",
-              cachePath.replace(/\\/g, "/"),
-              "."
-          ]
-        : ["-cz", "-f", archivePath, "-C", cachePath, "."];
-
-    expect(execMock).toHaveBeenCalledTimes(1);
-    expect(execMock).toHaveBeenCalledWith(`"tar"`, args);
+    expect(createTarMock).toHaveBeenCalledTimes(1);
+    expect(createTarMock).toHaveBeenCalledWith(archivePath, cachePath);
 
     expect(logWarningMock).toHaveBeenCalledTimes(1);
     expect(logWarningMock).toHaveBeenCalledWith(
@@ -259,7 +240,7 @@ test("save with server error outputs warning", async () => {
     const cachePath = path.resolve(inputPath);
     testUtils.setInput(Inputs.Path, inputPath);
 
-    const execMock = jest.spyOn(exec, "exec");
+    const createTarMock = jest.spyOn(tar, "createTar");
 
     const saveCacheMock = jest
         .spyOn(cacheHttpClient, "saveCache")
@@ -271,21 +252,8 @@ test("save with server error outputs warning", async () => {
 
     const archivePath = path.join("/foo/bar", "cache.tgz");
 
-    const IS_WINDOWS = process.platform === "win32";
-    const args = IS_WINDOWS
-        ? [
-              "-cz",
-              "--force-local",
-              "-f",
-              archivePath.replace(/\\/g, "/"),
-              "-C",
-              cachePath.replace(/\\/g, "/"),
-              "."
-          ]
-        : ["-cz", "-f", archivePath, "-C", cachePath, "."];
-
-    expect(execMock).toHaveBeenCalledTimes(1);
-    expect(execMock).toHaveBeenCalledWith(`"tar"`, args);
+    expect(createTarMock).toHaveBeenCalledTimes(1);
+    expect(createTarMock).toHaveBeenCalledWith(archivePath, cachePath);
 
     expect(saveCacheMock).toHaveBeenCalledTimes(1);
     expect(saveCacheMock).toHaveBeenCalledWith(primaryKey, archivePath);
@@ -321,29 +289,15 @@ test("save with valid inputs uploads a cache", async () => {
     const cachePath = path.resolve(inputPath);
     testUtils.setInput(Inputs.Path, inputPath);
 
-    const execMock = jest.spyOn(exec, "exec");
-
+    const createTarMock = jest.spyOn(tar, "createTar");
     const saveCacheMock = jest.spyOn(cacheHttpClient, "saveCache");
 
     await run();
 
     const archivePath = path.join("/foo/bar", "cache.tgz");
 
-    const IS_WINDOWS = process.platform === "win32";
-    const args = IS_WINDOWS
-        ? [
-              "-cz",
-              "--force-local",
-              "-f",
-              archivePath.replace(/\\/g, "/"),
-              "-C",
-              cachePath.replace(/\\/g, "/"),
-              "."
-          ]
-        : ["-cz", "-f", archivePath, "-C", cachePath, "."];
-
-    expect(execMock).toHaveBeenCalledTimes(1);
-    expect(execMock).toHaveBeenCalledWith(`"tar"`, args);
+    expect(createTarMock).toHaveBeenCalledTimes(1);
+    expect(createTarMock).toHaveBeenCalledWith(archivePath, cachePath);
 
     expect(saveCacheMock).toHaveBeenCalledTimes(1);
     expect(saveCacheMock).toHaveBeenCalledWith(primaryKey, archivePath);

__tests__/tar.test.ts

@@ -0,0 +1,60 @@
+import * as exec from "@actions/exec";
+import * as io from "@actions/io";
+import * as tar from "../src/tar";
+
+jest.mock("@actions/exec");
+jest.mock("@actions/io");
+
+beforeAll(() => {
+    process.env["windir"] = "C:";
+
+    jest.spyOn(io, "which").mockImplementation(tool => {
+        return Promise.resolve(tool);
+    });
+});
+
+afterAll(() => {
+    delete process.env["windir"];
+});
+
+test("extract tar", async () => {
+    const mkdirMock = jest.spyOn(io, "mkdirP");
+    const execMock = jest.spyOn(exec, "exec");
+
+    const archivePath = "cache.tar";
+    const targetDirectory = "~/.npm/cache";
+    await tar.extractTar(archivePath, targetDirectory);
+
+    expect(mkdirMock).toHaveBeenCalledWith(targetDirectory);
+
+    const IS_WINDOWS = process.platform === "win32";
+    const tarPath = IS_WINDOWS ? "C:\\System32\\tar.exe" : "tar";
+    expect(execMock).toHaveBeenCalledTimes(1);
+    expect(execMock).toHaveBeenCalledWith(`"${tarPath}"`, [
+        "-xz",
+        "-f",
+        archivePath,
+        "-C",
+        targetDirectory
+    ]);
+});
+
+test("create tar", async () => {
+    const execMock = jest.spyOn(exec, "exec");
+
+    const archivePath = "cache.tar";
+    const sourceDirectory = "~/.npm/cache";
+    await tar.createTar(archivePath, sourceDirectory);
+
+    const IS_WINDOWS = process.platform === "win32";
+    const tarPath = IS_WINDOWS ? "C:\\System32\\tar.exe" : "tar";
+    expect(execMock).toHaveBeenCalledTimes(1);
+    expect(execMock).toHaveBeenCalledWith(`"${tarPath}"`, [
+        "-cz",
+        "-f",
+        archivePath,
+        "-C",
+        sourceDirectory,
+        "."
+    ]);
+});

src/restore.ts

@@ -1,9 +1,8 @@
 import * as core from "@actions/core";
-import { exec } from "@actions/exec";
-import * as io from "@actions/io";
 import * as path from "path";
 import * as cacheHttpClient from "./cacheHttpClient";
 import { Events, Inputs, State } from "./constants";
+import { extractTar } from "./tar";
 import * as utils from "./utils/actionUtils";
 
 async function run(): Promise<void> {
@@ -87,27 +86,7 @@ async function run(): Promise<void> {
                 )} MB (${archiveFileSize} B)`
             );
 
-            // Create directory to extract tar into
-            await io.mkdirP(cachePath);
-
-            // http://man7.org/linux/man-pages/man1/tar.1.html
-            // tar [-options] <name of the tar archive> [files or directories which to add into archive]
-            const IS_WINDOWS = process.platform === "win32";
-            const args = IS_WINDOWS
-                ? [
-                      "-xz",
-                      "--force-local",
-                      "-f",
-                      archivePath.replace(/\\/g, "/"),
-                      "-C",
-                      cachePath.replace(/\\/g, "/")
-                  ]
-                : ["-xz", "-f", archivePath, "-C", cachePath];
-
-            const tarPath = await io.which("tar", true);
-            core.debug(`Tar Path: ${tarPath}`);
-
-            await exec(`"${tarPath}"`, args);
+            await extractTar(archivePath, cachePath);
 
             const isExactKeyMatch = utils.isExactKeyMatch(
                 primaryKey,

src/save.ts

@@ -1,9 +1,8 @@
 import * as core from "@actions/core";
-import { exec } from "@actions/exec";
-import * as io from "@actions/io";
 import * as path from "path";
 import * as cacheHttpClient from "./cacheHttpClient";
 import { Events, Inputs, State } from "./constants";
+import { createTar } from "./tar";
 import * as utils from "./utils/actionUtils";
 
 async function run(): Promise<void> {
@@ -46,24 +45,7 @@ async function run(): Promise<void> {
         );
         core.debug(`Archive Path: ${archivePath}`);
 
-        // http://man7.org/linux/man-pages/man1/tar.1.html
-        // tar [-options] <name of the tar archive> [files or directories which to add into archive]
-        const IS_WINDOWS = process.platform === "win32";
-        const args = IS_WINDOWS
-            ? [
-                  "-cz",
-                  "--force-local",
-                  "-f",
-                  archivePath.replace(/\\/g, "/"),
-                  "-C",
-                  cachePath.replace(/\\/g, "/"),
-                  "."
-              ]
-            : ["-cz", "-f", archivePath, "-C", cachePath, "."];
-
-        const tarPath = await io.which("tar", true);
-        core.debug(`Tar Path: ${tarPath}`);
-        await exec(`"${tarPath}"`, args);
+        await createTar(archivePath, cachePath);
 
         const fileSizeLimit = 400 * 1024 * 1024; // 400MB
         const archiveFileSize = utils.getArchiveFileSize(archivePath);

src/tar.ts

@@ -0,0 +1,27 @@
+import { exec } from "@actions/exec";
+import * as io from "@actions/io";
+
+export async function extractTar(archivePath: string, targetDirectory: string) {
+    // Create directory to extract tar into
+    await io.mkdirP(targetDirectory);
+
+    // http://man7.org/linux/man-pages/man1/tar.1.html
+    // tar [-options] <name of the tar archive> [files or directories which to add into archive]
+    const args = ["-xz", "-f", archivePath, "-C", targetDirectory];
+    await exec(`"${await getTarPath()}"`, args);
+}
+
+export async function createTar(archivePath: string, sourceDirectory: string) {
+    // http://man7.org/linux/man-pages/man1/tar.1.html
+    // tar [-options] <name of the tar archive> [files or directories which to add into archive]
+    const args = ["-cz", "-f", archivePath, "-C", sourceDirectory, "."];
+    await exec(`"${await getTarPath()}"`, args);
+}
+
+async function getTarPath(): Promise<string> {
+    // Explicitly use BSD Tar on Windows
+    const IS_WINDOWS = process.platform === "win32";
+    return IS_WINDOWS
+        ? `${process.env["windir"]}\\System32\\tar.exe`
+        : await io.which("tar", true);
+}