cache/src/restore.ts

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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";
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import * as utils from "./utils/actionUtils";
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async function run(): Promise<void> {
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try {
// Validate inputs, this can cause task failure
if (!utils.isValidEvent()) {
core.setFailed(
`Event Validation Error: The event type ${
process.env[Events.Key]
} is not supported. Only ${utils
.getSupportedEvents()
.join(", ")} events are supported at this time.`
);
}
const cachePath = utils.resolvePath(
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core.getInput(Inputs.Path, { required: true })
);
core.debug(`Cache Path: ${cachePath}`);
const primaryKey = core.getInput(Inputs.Key, { required: true });
core.saveState(State.CacheKey, primaryKey);
const restoreKeys = core
.getInput(Inputs.RestoreKeys)
.split("\n")
.filter(x => x !== "");
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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;
}
}
try {
const cacheEntry = await cacheHttpClient.getCacheEntry(keys);
if (!cacheEntry) {
core.info(
`Cache not found for input keys: ${keys.join(", ")}.`
);
return;
}
const archivePath = path.join(
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await utils.createTempDirectory(),
"cache.tgz"
);
core.debug(`Archive Path: ${archivePath}`);
// Store the cache result
utils.setCacheState(cacheEntry);
// Download the cache from the cache entry
await cacheHttpClient.downloadCache(cacheEntry, archivePath);
const archiveFileSize = utils.getArchiveFileSize(archivePath);
core.info(
`Cache Size: ~${Math.round(
archiveFileSize / (1024 * 1024)
)} MB (${archiveFileSize} B)`
);
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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];
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const tarPath = await io.which("tar", true);
core.debug(`Tar Path: ${tarPath}`);
await exec(`"${tarPath}"`, args);
const isExactKeyMatch = utils.isExactKeyMatch(
primaryKey,
cacheEntry
);
utils.setCacheHitOutput(isExactKeyMatch);
core.info(
`Cache restored from key: ${cacheEntry && cacheEntry.cacheKey}`
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);
} catch (error) {
core.warning(error.message);
utils.setCacheHitOutput(false);
}
} catch (error) {
core.setFailed(error.message);
}
}
run();
export default run;