Jesse_Chen
75 lines
2.3 KiB
JavaScript
75 lines
2.3 KiB
JavaScript
import { readFile } from "node:fs/promises";
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import { resolve } from "node:path";
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import { pathToFileURL } from "node:url";
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const shaPattern = /^[0-9a-f]{40}$/;
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const digestPattern = /^sha256:[0-9a-f]{64}$/;
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const expectedKeys = ["git_sha", "api_digest", "web_digest"];
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export function parseStagingImageManifest(text, expectedSha) {
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if (!shaPattern.test(expectedSha)) {
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throw new Error("invalid expected staging revision");
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}
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const lines = text.endsWith("\n") ? text.slice(0, -1).split("\n") : text.split("\n");
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if (lines.length !== expectedKeys.length) {
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throw new Error("invalid staging image manifest");
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}
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const values = new Map();
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for (const line of lines) {
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const separator = line.indexOf("=");
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if (separator <= 0) throw new Error("invalid staging image manifest");
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const key = line.slice(0, separator);
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const value = line.slice(separator + 1);
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if (!expectedKeys.includes(key) || values.has(key)) {
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throw new Error("invalid staging image manifest");
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}
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values.set(key, value);
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}
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if (values.get("git_sha") !== expectedSha) {
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throw new Error("staging image manifest revision mismatch");
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}
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for (const key of ["api_digest", "web_digest"]) {
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if (!digestPattern.test(values.get(key) ?? "")) {
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throw new Error("invalid staging image digest");
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}
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}
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return {
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gitSha: expectedSha,
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apiDigest: values.get("api_digest"),
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webDigest: values.get("web_digest"),
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apiImage: `ghcr.io/jesse-ux/jyotisha-api@${values.get("api_digest")}`,
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webImage: `ghcr.io/jesse-ux/jyotisha-web@${values.get("web_digest")}`,
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};
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}
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const invokedPath = process.argv[1]
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? pathToFileURL(resolve(process.argv[1])).href
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: undefined;
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if (invokedPath === import.meta.url) {
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try {
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const [manifestPath, expectedSha] = process.argv.slice(2);
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if (!manifestPath || !expectedSha) {
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throw new Error("manifest path and expected revision are required");
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}
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const manifest = parseStagingImageManifest(
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await readFile(manifestPath, "utf8"),
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expectedSha,
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);
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process.stdout.write(
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[
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`git_sha=${manifest.gitSha}`,
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`api_image=${manifest.apiImage}`,
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`web_image=${manifest.webImage}`,
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].join("\n") + "\n",
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);
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} catch {
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console.error("invalid staging image manifest");
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process.exitCode = 1;
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}
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}
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