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Switch cache action to use the cache node package

This commit is contained in:
Aiqiao Yan 2020-05-14 17:27:38 -04:00
parent 16a133d9a7
commit 7f9517a009
16 changed files with 2643 additions and 2999 deletions

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@ -1,424 +0,0 @@
import * as core from "@actions/core";
import { HttpClient, HttpCodes } from "@actions/http-client";
import { BearerCredentialHandler } from "@actions/http-client/auth";
import {
IHttpClientResponse,
IRequestOptions,
ITypedResponse
} from "@actions/http-client/interfaces";
import * as crypto from "crypto";
import * as fs from "fs";
import * as stream from "stream";
import * as util from "util";
import { CompressionMethod, Inputs, SocketTimeout } from "./constants";
import {
ArtifactCacheEntry,
CacheOptions,
CommitCacheRequest,
ReserveCacheRequest,
ReserveCacheResponse
} from "./contracts";
import * as utils from "./utils/actionUtils";
const versionSalt = "1.0";
function isSuccessStatusCode(statusCode?: number): boolean {
if (!statusCode) {
return false;
}
return statusCode >= 200 && statusCode < 300;
}
function isServerErrorStatusCode(statusCode?: number): boolean {
if (!statusCode) {
return true;
}
return statusCode >= 500;
}
function isRetryableStatusCode(statusCode?: number): boolean {
if (!statusCode) {
return false;
}
const retryableStatusCodes = [
HttpCodes.BadGateway,
HttpCodes.ServiceUnavailable,
HttpCodes.GatewayTimeout
];
return retryableStatusCodes.includes(statusCode);
}
function getCacheApiUrl(resource: string): string {
// Ideally we just use ACTIONS_CACHE_URL
const baseUrl: string = (
process.env["ACTIONS_CACHE_URL"] ||
process.env["ACTIONS_RUNTIME_URL"] ||
""
).replace("pipelines", "artifactcache");
if (!baseUrl) {
throw new Error(
"Cache Service Url not found, unable to restore cache."
);
}
const url = `${baseUrl}_apis/artifactcache/${resource}`;
core.debug(`Resource Url: ${url}`);
return url;
}
function createAcceptHeader(type: string, apiVersion: string): string {
return `${type};api-version=${apiVersion}`;
}
function getRequestOptions(): IRequestOptions {
const requestOptions: IRequestOptions = {
headers: {
Accept: createAcceptHeader("application/json", "6.0-preview.1")
}
};
return requestOptions;
}
function createHttpClient(): HttpClient {
const token = process.env["ACTIONS_RUNTIME_TOKEN"] || "";
const bearerCredentialHandler = new BearerCredentialHandler(token);
return new HttpClient(
"actions/cache",
[bearerCredentialHandler],
getRequestOptions()
);
}
export function getCacheVersion(compressionMethod?: CompressionMethod): string {
const components = [core.getInput(Inputs.Path, { required: true })].concat(
compressionMethod == CompressionMethod.Zstd ? [compressionMethod] : []
);
// Add salt to cache version to support breaking changes in cache entry
components.push(versionSalt);
return crypto
.createHash("sha256")
.update(components.join("|"))
.digest("hex");
}
export async function retry<T>(
name: string,
method: () => Promise<T>,
getStatusCode: (T) => number | undefined,
maxAttempts = 2
): Promise<T> {
let response: T | undefined = undefined;
let statusCode: number | undefined = undefined;
let isRetryable = false;
let errorMessage = "";
let attempt = 1;
while (attempt <= maxAttempts) {
try {
response = await method();
statusCode = getStatusCode(response);
if (!isServerErrorStatusCode(statusCode)) {
return response;
}
isRetryable = isRetryableStatusCode(statusCode);
errorMessage = `Cache service responded with ${statusCode}`;
} catch (error) {
isRetryable = true;
errorMessage = error.message;
}
core.debug(
`${name} - Attempt ${attempt} of ${maxAttempts} failed with error: ${errorMessage}`
);
if (!isRetryable) {
core.debug(`${name} - Error is not retryable`);
break;
}
attempt++;
}
throw Error(`${name} failed: ${errorMessage}`);
}
export async function retryTypedResponse<T>(
name: string,
method: () => Promise<ITypedResponse<T>>,
maxAttempts = 2
): Promise<ITypedResponse<T>> {
return await retry(
name,
method,
(response: ITypedResponse<T>) => response.statusCode,
maxAttempts
);
}
export async function retryHttpClientResponse<T>(
name: string,
method: () => Promise<IHttpClientResponse>,
maxAttempts = 2
): Promise<IHttpClientResponse> {
return await retry(
name,
method,
(response: IHttpClientResponse) => response.message.statusCode,
maxAttempts
);
}
export async function getCacheEntry(
keys: string[],
options?: CacheOptions
): Promise<ArtifactCacheEntry | null> {
const httpClient = createHttpClient();
const version = getCacheVersion(options?.compressionMethod);
const resource = `cache?keys=${encodeURIComponent(
keys.join(",")
)}&version=${version}`;
const response = await retryTypedResponse("getCacheEntry", () =>
httpClient.getJson<ArtifactCacheEntry>(getCacheApiUrl(resource))
);
if (response.statusCode === 204) {
return null;
}
if (!isSuccessStatusCode(response.statusCode)) {
throw new Error(`Cache service responded with ${response.statusCode}`);
}
const cacheResult = response.result;
const cacheDownloadUrl = cacheResult?.archiveLocation;
if (!cacheDownloadUrl) {
throw new Error("Cache not found.");
}
core.setSecret(cacheDownloadUrl);
core.debug(`Cache Result:`);
core.debug(JSON.stringify(cacheResult));
return cacheResult;
}
async function pipeResponseToStream(
response: IHttpClientResponse,
output: NodeJS.WritableStream
): Promise<void> {
const pipeline = util.promisify(stream.pipeline);
await pipeline(response.message, output);
}
export async function downloadCache(
archiveLocation: string,
archivePath: string
): Promise<void> {
const stream = fs.createWriteStream(archivePath);
const httpClient = new HttpClient("actions/cache");
const downloadResponse = await retryHttpClientResponse(
"downloadCache",
() => httpClient.get(archiveLocation)
);
// Abort download if no traffic received over the socket.
downloadResponse.message.socket.setTimeout(SocketTimeout, () => {
downloadResponse.message.destroy();
core.debug(
`Aborting download, socket timed out after ${SocketTimeout} ms`
);
});
await pipeResponseToStream(downloadResponse, stream);
// Validate download size.
const contentLengthHeader =
downloadResponse.message.headers["content-length"];
if (contentLengthHeader) {
const expectedLength = parseInt(contentLengthHeader);
const actualLength = utils.getArchiveFileSize(archivePath);
if (actualLength != expectedLength) {
throw new Error(
`Incomplete download. Expected file size: ${expectedLength}, actual file size: ${actualLength}`
);
}
} else {
core.debug("Unable to validate download, no Content-Length header");
}
}
// Reserve Cache
export async function reserveCache(
key: string,
options?: CacheOptions
): Promise<number> {
const httpClient = createHttpClient();
const version = getCacheVersion(options?.compressionMethod);
const reserveCacheRequest: ReserveCacheRequest = {
key,
version
};
const response = await retryTypedResponse("reserveCache", () =>
httpClient.postJson<ReserveCacheResponse>(
getCacheApiUrl("caches"),
reserveCacheRequest
)
);
return response?.result?.cacheId ?? -1;
}
function getContentRange(start: number, end: number): string {
// Format: `bytes start-end/filesize
// start and end are inclusive
// filesize can be *
// For a 200 byte chunk starting at byte 0:
// Content-Range: bytes 0-199/*
return `bytes ${start}-${end}/*`;
}
async function uploadChunk(
httpClient: HttpClient,
resourceUrl: string,
openStream: () => NodeJS.ReadableStream,
start: number,
end: number
): Promise<void> {
core.debug(
`Uploading chunk of size ${end -
start +
1} bytes at offset ${start} with content range: ${getContentRange(
start,
end
)}`
);
const additionalHeaders = {
"Content-Type": "application/octet-stream",
"Content-Range": getContentRange(start, end)
};
await retryHttpClientResponse(
`uploadChunk (start: ${start}, end: ${end})`,
() =>
httpClient.sendStream(
"PATCH",
resourceUrl,
openStream(),
additionalHeaders
)
);
}
function parseEnvNumber(key: string): number | undefined {
const value = Number(process.env[key]);
if (Number.isNaN(value) || value < 0) {
return undefined;
}
return value;
}
async function uploadFile(
httpClient: HttpClient,
cacheId: number,
archivePath: string
): Promise<void> {
// Upload Chunks
const fileSize = fs.statSync(archivePath).size;
const resourceUrl = getCacheApiUrl(`caches/${cacheId.toString()}`);
const fd = fs.openSync(archivePath, "r");
const concurrency = parseEnvNumber("CACHE_UPLOAD_CONCURRENCY") ?? 4; // # of HTTP requests in parallel
const MAX_CHUNK_SIZE =
parseEnvNumber("CACHE_UPLOAD_CHUNK_SIZE") ?? 32 * 1024 * 1024; // 32 MB Chunks
core.debug(`Concurrency: ${concurrency} and Chunk Size: ${MAX_CHUNK_SIZE}`);
const parallelUploads = [...new Array(concurrency).keys()];
core.debug("Awaiting all uploads");
let offset = 0;
try {
await Promise.all(
parallelUploads.map(async () => {
while (offset < fileSize) {
const chunkSize = Math.min(
fileSize - offset,
MAX_CHUNK_SIZE
);
const start = offset;
const end = offset + chunkSize - 1;
offset += MAX_CHUNK_SIZE;
await uploadChunk(
httpClient,
resourceUrl,
() =>
fs
.createReadStream(archivePath, {
fd,
start,
end,
autoClose: false
})
.on("error", error => {
throw new Error(
`Cache upload failed because file read failed with ${error.Message}`
);
}),
start,
end
);
}
})
);
} finally {
fs.closeSync(fd);
}
return;
}
async function commitCache(
httpClient: HttpClient,
cacheId: number,
filesize: number
): Promise<ITypedResponse<null>> {
const commitCacheRequest: CommitCacheRequest = { size: filesize };
return await retryTypedResponse("commitCache", () =>
httpClient.postJson<null>(
getCacheApiUrl(`caches/${cacheId.toString()}`),
commitCacheRequest
)
);
}
export async function saveCache(
cacheId: number,
archivePath: string
): Promise<void> {
const httpClient = createHttpClient();
core.debug("Upload cache");
await uploadFile(httpClient, cacheId, archivePath);
// Commit Cache
core.debug("Commiting cache");
const cacheSize = utils.getArchiveFileSize(archivePath);
const commitCacheResponse = await commitCache(
httpClient,
cacheId,
cacheSize
);
if (!isSuccessStatusCode(commitCacheResponse.statusCode)) {
throw new Error(
`Cache service responded with ${commitCacheResponse.statusCode} during commit cache.`
);
}
core.info("Cache saved successfully");
}

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@ -19,19 +19,4 @@ export enum Events {
PullRequest = "pull_request"
}
export enum CacheFilename {
Gzip = "cache.tgz",
Zstd = "cache.tzst"
}
export enum CompressionMethod {
Gzip = "gzip",
Zstd = "zstd"
}
// Socket timeout in milliseconds during download. If no traffic is received
// over the socket during this period, the socket is destroyed and the download
// is aborted.
export const SocketTimeout = 5000;
export const RefKey = "GITHUB_REF";

25
src/contracts.d.ts vendored
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@ -1,25 +0,0 @@
import { CompressionMethod } from "./constants";
export interface ArtifactCacheEntry {
cacheKey?: string;
scope?: string;
creationTime?: string;
archiveLocation?: string;
}
export interface CommitCacheRequest {
size: number;
}
export interface ReserveCacheRequest {
key: string;
version?: string;
}
export interface ReserveCacheResponse {
cacheId: number;
}
export interface CacheOptions {
compressionMethod?: CompressionMethod;
}

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@ -1,9 +1,7 @@
import * as cache from "@actions/cache";
import * as core from "@actions/core";
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> {
@ -25,89 +23,42 @@ async function run(): Promise<void> {
.getInput(Inputs.RestoreKeys)
.split("\n")
.filter(x => x !== "");
const keys = [primaryKey, ...restoreKeys];
core.debug("Resolved Keys:");
core.debug(JSON.stringify(keys));
if (keys.length > 10) {
core.setFailed(
`Key Validation Error: Keys are limited to a maximum of 10.`
);
return;
}
for (const key of keys) {
if (key.length > 512) {
core.setFailed(
`Key Validation Error: ${key} cannot be larger than 512 characters.`
);
return;
}
const regex = /^[^,]*$/;
if (!regex.test(key)) {
core.setFailed(
`Key Validation Error: ${key} cannot contain commas.`
);
return;
}
}
const compressionMethod = await utils.getCompressionMethod();
const cachePaths = core
.getInput(Inputs.Path, { required: true })
.split("\n")
.filter(x => x !== "");
try {
const cacheEntry = await cacheHttpClient.getCacheEntry(keys, {
compressionMethod: compressionMethod
});
if (!cacheEntry?.archiveLocation) {
core.info(`Cache not found for input keys: ${keys.join(", ")}`);
const cacheKey = await cache.restoreCache(
cachePaths,
primaryKey,
restoreKeys
);
if (!cacheKey) {
core.info(
`Cache not found for input keys: ${[
primaryKey,
...restoreKeys
].join(", ")}`
);
return;
}
const archivePath = path.join(
await utils.createTempDirectory(),
utils.getCacheFileName(compressionMethod)
);
core.debug(`Archive Path: ${archivePath}`);
// Store the cache result
utils.setCacheState(cacheEntry);
utils.setCacheState(cacheKey);
try {
// Download the cache from the cache entry
await cacheHttpClient.downloadCache(
cacheEntry.archiveLocation,
archivePath
);
const archiveFileSize = utils.getArchiveFileSize(archivePath);
core.info(
`Cache Size: ~${Math.round(
archiveFileSize / (1024 * 1024)
)} MB (${archiveFileSize} B)`
);
await extractTar(archivePath, compressionMethod);
} finally {
// Try to delete the archive to save space
try {
await utils.unlinkFile(archivePath);
} catch (error) {
core.debug(`Failed to delete archive: ${error}`);
}
}
const isExactKeyMatch = utils.isExactKeyMatch(
primaryKey,
cacheEntry
);
const isExactKeyMatch = utils.isExactKeyMatch(primaryKey, cacheKey);
utils.setCacheHitOutput(isExactKeyMatch);
core.info(
`Cache restored from key: ${cacheEntry && cacheEntry.cacheKey}`
);
core.info(`Cache restored from key: ${cacheKey}`);
} catch (error) {
utils.logWarning(error.message);
utils.setCacheHitOutput(false);
if (error.name === cache.ValidationError.name) {
throw error;
} else {
utils.logWarning(error.message);
utils.setCacheHitOutput(false);
}
}
} catch (error) {
core.setFailed(error.message);

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@ -1,9 +1,7 @@
import * as cache from "@actions/cache";
import * as core from "@actions/core";
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> {
@ -33,53 +31,22 @@ async function run(): Promise<void> {
return;
}
const compressionMethod = await utils.getCompressionMethod();
const cachePaths = core
.getInput(Inputs.Path, { required: true })
.split("\n")
.filter(x => x !== "");
core.debug("Reserving Cache");
const cacheId = await cacheHttpClient.reserveCache(primaryKey, {
compressionMethod: compressionMethod
});
if (cacheId == -1) {
core.info(
`Unable to reserve cache with key ${primaryKey}, another job may be creating this cache.`
);
return;
try {
await cache.saveCache(cachePaths, primaryKey);
} catch (error) {
if (error.name === cache.ValidationError.name) {
throw error;
} else if (error.name === cache.ReserveCacheError.name) {
core.info(error.message);
} else {
utils.logWarning(error.message);
}
}
core.debug(`Cache ID: ${cacheId}`);
const cachePaths = await utils.resolvePaths(
core
.getInput(Inputs.Path, { required: true })
.split("\n")
.filter(x => x !== "")
);
core.debug("Cache Paths:");
core.debug(`${JSON.stringify(cachePaths)}`);
const archiveFolder = await utils.createTempDirectory();
const archivePath = path.join(
archiveFolder,
utils.getCacheFileName(compressionMethod)
);
core.debug(`Archive Path: ${archivePath}`);
await createTar(archiveFolder, cachePaths, compressionMethod);
const fileSizeLimit = 5 * 1024 * 1024 * 1024; // 5GB per repo limit
const archiveFileSize = utils.getArchiveFileSize(archivePath);
core.debug(`File Size: ${archiveFileSize}`);
if (archiveFileSize > fileSizeLimit) {
utils.logWarning(
`Cache size of ~${Math.round(
archiveFileSize / (1024 * 1024)
)} MB (${archiveFileSize} B) is over the 5GB limit, not saving cache.`
);
return;
}
core.debug(`Saving Cache (ID: ${cacheId})`);
await cacheHttpClient.saveCache(cacheId, archivePath);
} catch (error) {
utils.logWarning(error.message);
}

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@ -1,87 +0,0 @@
import { exec } from "@actions/exec";
import * as io from "@actions/io";
import { existsSync, writeFileSync } from "fs";
import * as path from "path";
import { CompressionMethod } from "./constants";
import * as utils from "./utils/actionUtils";
async function getTarPath(args: string[]): Promise<string> {
// Explicitly use BSD Tar on Windows
const IS_WINDOWS = process.platform === "win32";
if (IS_WINDOWS) {
const systemTar = `${process.env["windir"]}\\System32\\tar.exe`;
if (existsSync(systemTar)) {
return systemTar;
} else if (await utils.useGnuTar()) {
args.push("--force-local");
}
}
return await io.which("tar", true);
}
async function execTar(args: string[], cwd?: string): Promise<void> {
try {
await exec(`"${await getTarPath(args)}"`, args, { cwd: cwd });
} catch (error) {
throw new Error(`Tar failed with error: ${error?.message}`);
}
}
function getWorkingDirectory(): string {
return process.env["GITHUB_WORKSPACE"] ?? process.cwd();
}
export async function extractTar(
archivePath: string,
compressionMethod: CompressionMethod
): Promise<void> {
// Create directory to extract tar into
const workingDirectory = getWorkingDirectory();
await io.mkdirP(workingDirectory);
// --d: Decompress.
// --long=#: Enables long distance matching with # bits. Maximum is 30 (1GB) on 32-bit OS and 31 (2GB) on 64-bit.
// Using 30 here because we also support 32-bit self-hosted runners.
const args = [
...(compressionMethod == CompressionMethod.Zstd
? ["--use-compress-program", "zstd -d --long=30"]
: ["-z"]),
"-xf",
archivePath.replace(new RegExp("\\" + path.sep, "g"), "/"),
"-P",
"-C",
workingDirectory.replace(new RegExp("\\" + path.sep, "g"), "/")
];
await execTar(args);
}
export async function createTar(
archiveFolder: string,
sourceDirectories: string[],
compressionMethod: CompressionMethod
): Promise<void> {
// Write source directories to manifest.txt to avoid command length limits
const manifestFilename = "manifest.txt";
const cacheFileName = utils.getCacheFileName(compressionMethod);
writeFileSync(
path.join(archiveFolder, manifestFilename),
sourceDirectories.join("\n")
);
// -T#: Compress using # working thread. If # is 0, attempt to detect and use the number of physical CPU cores.
// --long=#: Enables long distance matching with # bits. Maximum is 30 (1GB) on 32-bit OS and 31 (2GB) on 64-bit.
// Using 30 here because we also support 32-bit self-hosted runners.
const workingDirectory = getWorkingDirectory();
const args = [
...(compressionMethod == CompressionMethod.Zstd
? ["--use-compress-program", "zstd -T0 --long=30"]
: ["-z"]),
"-cf",
cacheFileName.replace(new RegExp("\\" + path.sep, "g"), "/"),
"-P",
"-C",
workingDirectory.replace(new RegExp("\\" + path.sep, "g"), "/"),
"--files-from",
manifestFilename
];
await execTar(args, archiveFolder);
}

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@ -1,86 +1,35 @@
import * as core from "@actions/core";
import * as exec from "@actions/exec";
import * as glob from "@actions/glob";
import * as io from "@actions/io";
import * as fs from "fs";
import * as path from "path";
import * as util from "util";
import * as uuidV4 from "uuid/v4";
import {
CacheFilename,
CompressionMethod,
Outputs,
RefKey,
State
} from "../constants";
import { ArtifactCacheEntry } from "../contracts";
import { Outputs, RefKey, State } from "../constants";
// From https://github.com/actions/toolkit/blob/master/packages/tool-cache/src/tool-cache.ts#L23
export async function createTempDirectory(): Promise<string> {
const IS_WINDOWS = process.platform === "win32";
let tempDirectory: string = process.env["RUNNER_TEMP"] || "";
if (!tempDirectory) {
let baseLocation: string;
if (IS_WINDOWS) {
// On Windows use the USERPROFILE env variable
baseLocation = process.env["USERPROFILE"] || "C:\\";
} else {
if (process.platform === "darwin") {
baseLocation = "/Users";
} else {
baseLocation = "/home";
}
}
tempDirectory = path.join(baseLocation, "actions", "temp");
}
const dest = path.join(tempDirectory, uuidV4.default());
await io.mkdirP(dest);
return dest;
}
export function getArchiveFileSize(path: string): number {
return fs.statSync(path).size;
}
export function isExactKeyMatch(
key: string,
cacheResult?: ArtifactCacheEntry
): boolean {
export function isExactKeyMatch(key: string, cacheKey?: string): boolean {
return !!(
cacheResult &&
cacheResult.cacheKey &&
cacheResult.cacheKey.localeCompare(key, undefined, {
cacheKey &&
cacheKey.localeCompare(key, undefined, {
sensitivity: "accent"
}) === 0
);
}
export function setCacheState(state: ArtifactCacheEntry): void {
core.saveState(State.CacheResult, JSON.stringify(state));
export function setCacheState(state: string): void {
core.saveState(State.CacheResult, state);
}
export function setCacheHitOutput(isCacheHit: boolean): void {
core.setOutput(Outputs.CacheHit, isCacheHit.toString());
}
export function setOutputAndState(
key: string,
cacheResult?: ArtifactCacheEntry
): void {
setCacheHitOutput(isExactKeyMatch(key, cacheResult));
export function setOutputAndState(key: string, cacheKey?: string): void {
setCacheHitOutput(isExactKeyMatch(key, cacheKey));
// Store the cache result if it exists
cacheResult && setCacheState(cacheResult);
cacheKey && setCacheState(cacheKey);
}
export function getCacheState(): ArtifactCacheEntry | undefined {
const stateData = core.getState(State.CacheResult);
core.debug(`State: ${stateData}`);
if (stateData) {
return JSON.parse(stateData) as ArtifactCacheEntry;
export function getCacheState(): string | undefined {
const cacheKey = core.getState(State.CacheResult);
if (cacheKey) {
core.debug(`Cache state/key: ${cacheKey}`);
return cacheKey;
}
return undefined;
@ -91,70 +40,8 @@ export function logWarning(message: string): void {
core.info(`${warningPrefix}${message}`);
}
export async function resolvePaths(patterns: string[]): Promise<string[]> {
const paths: string[] = [];
const workspace = process.env["GITHUB_WORKSPACE"] ?? process.cwd();
const globber = await glob.create(patterns.join("\n"), {
implicitDescendants: false
});
for await (const file of globber.globGenerator()) {
const relativeFile = path.relative(workspace, file);
core.debug(`Matched: ${relativeFile}`);
// Paths are made relative so the tar entries are all relative to the root of the workspace.
paths.push(`${relativeFile}`);
}
return paths;
}
// Cache token authorized for all events that are tied to a ref
// See GitHub Context https://help.github.com/actions/automating-your-workflow-with-github-actions/contexts-and-expression-syntax-for-github-actions#github-context
export function isValidEvent(): boolean {
return RefKey in process.env && Boolean(process.env[RefKey]);
}
export function unlinkFile(path: fs.PathLike): Promise<void> {
return util.promisify(fs.unlink)(path);
}
async function getVersion(app: string): Promise<string> {
core.debug(`Checking ${app} --version`);
let versionOutput = "";
try {
await exec.exec(`${app} --version`, [], {
ignoreReturnCode: true,
silent: true,
listeners: {
stdout: (data: Buffer): string =>
(versionOutput += data.toString()),
stderr: (data: Buffer): string =>
(versionOutput += data.toString())
}
});
} catch (err) {
core.debug(err.message);
}
versionOutput = versionOutput.trim();
core.debug(versionOutput);
return versionOutput;
}
export async function getCompressionMethod(): Promise<CompressionMethod> {
const versionOutput = await getVersion("zstd");
return versionOutput.toLowerCase().includes("zstd command line interface")
? CompressionMethod.Zstd
: CompressionMethod.Gzip;
}
export function getCacheFileName(compressionMethod: CompressionMethod): string {
return compressionMethod == CompressionMethod.Zstd
? CacheFilename.Zstd
: CacheFilename.Gzip;
}
export async function useGnuTar(): Promise<boolean> {
const versionOutput = await getVersion("tar");
return versionOutput.toLowerCase().includes("gnu tar");
}