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Fallback to GNU tar if BSD tar is unavailable

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Aiqiao Yan 2020-04-09 10:29:33 -04:00 • committed by Aiqiao Yan
parent 78809b91d7
commit 4fa017f2b7
4 changed files with 166 additions and 40 deletions
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43
src/tar.ts
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@ -1,3 +1,4 @@
import * as core from "@actions/core";
import { exec } from "@actions/exec";
import * as io from "@actions/io";
import { existsSync, writeFileSync } from "fs";
@ -5,13 +6,32 @@ import * as path from "path";
import { CacheFilename } from "./constants";
async function getTarPath(): Promise<string> {
export async function isGnuTar(): Promise<boolean> {
core.debug("Checking tar --version");
let versionOutput = "";
await exec("tar --version", [], {
ignoreReturnCode: true,
silent: true,
listeners: {
stdout: (data: Buffer): string =>
(versionOutput += data.toString()),
stderr: (data: Buffer): string => (versionOutput += data.toString())
}
});
core.debug(versionOutput.trim());
return versionOutput.toUpperCase().includes("GNU TAR");
}
async function getTarPath(args: string[]): Promise<string> {
// Explicitly use BSD Tar on Windows
const IS_WINDOWS = process.platform === "win32";
if (IS_WINDOWS) {
const systemTar = `${process.env["windir"]}\\System32\\tar.exe`;
if (existsSync(systemTar)) {
return systemTar;
} else if (isGnuTar()) {
args.push("--force-local");
}
}
return await io.which("tar", true);
@ -19,14 +39,8 @@ async function getTarPath(): Promise<string> {
async function execTar(args: string[], cwd?: string): Promise<void> {
try {
await exec(`"${await getTarPath()}"`, args, { cwd: cwd });
await exec(`"${await getTarPath(args)}"`, args, { cwd: cwd });
} catch (error) {
const IS_WINDOWS = process.platform === "win32";
if (IS_WINDOWS) {
throw new Error(
`Tar failed with error: ${error?.message}. Ensure BSD tar is installed and on the PATH.`
);
}
throw new Error(`Tar failed with error: ${error?.message}`);
}
}
@ -39,7 +53,14 @@ export async function extractTar(archivePath: string): Promise<void> {
// Create directory to extract tar into
const workingDirectory = getWorkingDirectory();
await io.mkdirP(workingDirectory);
const args = ["-xz", "-f", archivePath, "-P", "-C", workingDirectory];
const args = [
"-xz",
"-f",
archivePath?.replace(/\\/g, "/"),
"-P",
"-C",
workingDirectory?.replace(/\\/g, "/")
];
await execTar(args);
}
@ -58,10 +79,10 @@ export async function createTar(
const args = [
"-cz",
"-f",
CacheFilename,
CacheFilename?.replace(/\\/g, "/"),
"-P",
"-C",
workingDirectory,
workingDirectory?.replace(/\\/g, "/"),
"--files-from",
manifestFilename
];