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// Copyright 2022-2022 the Deno authors. All rights reserved. MIT license.
import { VERSION } from "../version.ts";import * as semver from "../semver/mod.ts";import * as colors from "../fmt/colors.ts";
const EXTENSIONS = [".mjs", ".js", ".ts", ".rs"];const EXCLUDED_PATHS = [  ".git",  "node/",  "dotenv/testdata",  "fs/testdata",  "http/testdata",];
console.warn(  colors.yellow("Warning"),  `ignore ${    colors.green(`"fs/exists.ts"`)  } until issue is resolved: https://github.com/denoland/deno_std/issues/2594`,);EXCLUDED_PATHS.push("fs/exists.ts");
const ROOT = new URL("../", import.meta.url).pathname.slice(0, -1);const FAIL_FAST = Deno.args.includes("--fail-fast");
const DEPRECATED_REGEX = /\*\s+@deprecated\s+(?<text>.+)/;const DEPRECATION_IN_FORMAT_REGEX =  /^\(will be removed in (?<version>\d+\.\d+\.\d+)\)/;const DEPRECATION_AFTER_FORMAT_REGEX =  /^\(will be removed after (?<version>\d+\.\d+\.\d+)\)/;
let shouldFail = false;
// add three minor version to current versionconst DEFAULT_DEPRECATED_VERSION = semver.inc(  semver.inc(    semver.inc(      VERSION,      "minor",    )!,    "minor",  )!,  "minor",);
const DEPRECATION_IN_FORMAT =  `(will be removed in ${DEFAULT_DEPRECATED_VERSION})`;
function walk(dir: string) {  for (const x of Deno.readDirSync(dir)) {    const filePath = `${dir}/${x.name}`;
    if (x.isDirectory) {      walk(filePath);      continue;    }
    const isExcluded = EXCLUDED_PATHS      .map((x) => filePath.includes(x))      .some((x) => x);    if (      isExcluded ||      !EXTENSIONS.map((x) => filePath.endsWith(x)).some((x) => x)    ) {      continue;    }
    const content = Deno.readTextFileSync(filePath);    const lines = content.split("\n");    let lineIndex = 1;    for (const line of lines) {      const match = DEPRECATED_REGEX.exec(line);      if (match) {        const text = match.groups?.text;        if (!text) {          console.error(            colors.red("Error"),            `${              colors.bold("@deprecated")            } tag must have a version: ${filePath}:${lineIndex}`,          );          shouldFail = true;          if (FAIL_FAST) Deno.exit(1);          continue;        }        const { version: afterVersion } =          DEPRECATION_AFTER_FORMAT_REGEX.exec(text)?.groups || {};
        if (afterVersion) {          if (semver.lt(afterVersion, VERSION)) {            console.warn(              colors.yellow("Warn"),              `${                colors.bold("@deprecated")              } tag is expired and export should be removed: ${filePath}:${lineIndex}`,            );          }          continue;        }
        const { version: inVersion } =          DEPRECATION_IN_FORMAT_REGEX.exec(text)?.groups || {};        if (!inVersion) {          console.error(            colors.red("Error"),            `${              colors.bold("@deprecated")            } tag version is missing. Append '${DEPRECATION_IN_FORMAT}' after @deprecated tag: ${filePath}:${lineIndex}`,          );          shouldFail = true;          if (FAIL_FAST) Deno.exit(1);          continue;        }
        if (!semver.gt(inVersion, VERSION)) {          console.error(            colors.red("Error"),            `${              colors.bold("@deprecated")            } tag is expired and export must be removed: ${filePath}:${lineIndex}`,          );          if (FAIL_FAST) Deno.exit(1);          shouldFail = true;          continue;        }      }      lineIndex += 1;    }  }}
walk(ROOT);if (shouldFail) Deno.exit(1);