Add files for Yarn 3 (#305)

.eslintignore

@@ -1,3 +1,3 @@
-test/yarn-berry.cjs
+test/yarn-*.cjs
 dist
 coverage

.gitattributes

@@ -1 +1 @@
-test/yarn-berry.cjs linguist-vendored
+test/yarn-*.cjs linguist-vendored

.prettierignore

@@ -1,5 +1,6 @@
-test/yarn-berry.cjs
 coverage
+test/yarn-*.cjs
 **/pnpm-lock.yaml
 **/*-output.json
 **/.pnp.cjs
+test/*/*.json

.vscode/launch.json

@@ -1,43 +1,4 @@
 {
   "version": "0.2.0",
-  "configurations": [
-    {
-      "type": "node",
-      "request": "launch",
-      "name": "Mocha All",
-      "program": "${workspaceFolder}/node_modules/mocha/bin/_mocha",
-      "args": [
-        "-r",
-        "ts-node/register",
-        "--timeout",
-        "999999",
-        "--extensions",
-        "ts",
-        "--recursive",
-        "--colors",
-        "${workspaceFolder}/test/*.spec.ts"
-      ],
-      "console": "integratedTerminal",
-      "internalConsoleOptions": "neverOpen"
-    },
-    {
-      "type": "node",
-      "request": "launch",
-      "name": "Mocha Current File",
-      "program": "${workspaceFolder}/node_modules/mocha/bin/_mocha",
-      "args": [
-        "-r",
-        "ts-node/register",
-        "--timeout",
-        "999999",
-        "--extensions",
-        "ts",
-        "--recursive",
-        "--colors",
-        "${file}"
-      ],
-      "console": "integratedTerminal",
-      "internalConsoleOptions": "neverOpen"
-    }
-  ]
+  "configurations": []
 }

README.md

@@ -14,12 +14,17 @@ threshold while ignoring allowlisted advisories.
 ## Requirements
 
 - Node >=16
-- _(Optional)_ Yarn ^1.12.3 || Yarn >=2.4.0
+- _(Optional)_ Yarn ^1.12.3 || Yarn >=2.4.0 && <4.0.0
 - _(Optional)_ PNPM >=4.3.0
+- _(Optional)_ Bun
 
 ## Limitations
 
 - Yarn Classic workspaces does not audit `devDependencies`. See [this issue](https://github.com/yarnpkg/yarn/issues/7047) for more information.
+- Yarn v4 is not supported because it provides similar functionality to `audit-ci`.
+  For more information, see the [documentation on `yarn npm audit`](https://yarnpkg.com/cli/npm/audit#options).
+- Bun is supported by exporting the `bun.lockb` into a Yarn v1 `yarn.lock` file.
+  Accordingly, it requires Yarn v1 to run `audit-ci` and it has the same limitations as Yarn v1.
 
 ## Set up
 
@@ -40,6 +45,7 @@ The downside of this approach is that the CI may run a `postinstall` script of a
 npm install -D audit-ci
 yarn add -D audit-ci
 pnpm install -D audit-ci
+bun install -D audit-ci
 ```
 
 The next section gives examples using `audit-ci` in various CI environments.
@@ -59,11 +65,21 @@ Also, it suppresses an advisory of `axios` and a transitive advisory of `react-s
     // https://github.com/advisories/GHSA-rp65-9cf3-cjxr
     // Alternatively, allowlist "GHSA-rp65-9cf3-cjxr" to suppress this nth-check advisory across all paths
     // or "*|react-scripts>*" to suppress advisories for all transitive dependencies of "react-scripts".
-    "GHSA-rp65-9cf3-cjxr|react-scripts>@svgr/webpack>@svgr/plugin-svgo>svgo>css-select>nth-check"
-  ]
+    "GHSA-rp65-9cf3-cjxr|react-scripts>@svgr/webpack>@svgr/plugin-svgo>svgo>css-select>nth-check",
+  ],
 }
 ```
 
+### Bun
+
+Bun supports exporting the `bun.lockb` into a Yarn v1 `yarn.lock` file.
+
+```sh
+bun install -y
+```
+
+Afterwards, you can run `audit-ci` with the `yarn` package manager.
+
 ### Allowlisting
 
 Allowlists are a mechanism to suppress an advisory warning from the audit. A team may want to suppress an advisory when:
@@ -320,8 +336,8 @@ With a `JSONC` config file, execute with `npx audit-ci --config ./audit-ci.jsonc
     // https://github.com/advisories/GHSA-rp65-9cf3-cjxr
     // Alternatively, allowlist "GHSA-rp65-9cf3-cjxr" to suppress this nth-check advisory across all paths
     // or "*|react-scripts>*" to suppress advisories for all transitive dependencies of "react-scripts".
-    "GHSA-rp65-9cf3-cjxr|react-scripts>@svgr/webpack>@svgr/plugin-svgo>svgo>css-select>nth-check"
-  ]
+    "GHSA-rp65-9cf3-cjxr|react-scripts>@svgr/webpack>@svgr/plugin-svgo>svgo>css-select>nth-check",
+  ],
 }
 ```
 
@@ -359,7 +375,7 @@ With a `JSONC` config file:
 {
   "$schema": "https://github.com/IBM/audit-ci/raw/main/docs/schema.json",
   "critical": true,
-  "report-type": "full"
+  "report-type": "full",
 }
 ```
 
@@ -376,7 +392,7 @@ With a `JSONC` config file:
 ```jsonc
 {
   "$schema": "https://github.com/IBM/audit-ci/raw/main/docs/schema.json",
-  "report-type": "summary"
+  "report-type": "summary",
 }
 ```
 
@@ -393,7 +409,7 @@ With a `JSONC` config file, in a project on Yarn Berry v3.3.0 or later:
 ```jsonc
 {
   "$schema": "https://github.com/IBM/audit-ci/raw/main/docs/schema.json",
-  "extra-args": ["--exclude", "example"]
+  "extra-args": ["--exclude", "example"],
 }
 ```
 
@@ -420,9 +436,9 @@ npx audit-ci@^7 --extra-args '\--exclude' example
     "GHSA-6354-6mhv-mvv5|example3",
     "GHSA-42xw-2xvc-qx8m|example4",
     "GHSA-42xw-2xvc-qx8m|example5>example4",
-    "*|example6>*"
+    "*|example6>*",
   ],
-  "registry": "https://registry.npmjs.org"
+  "registry": "https://registry.npmjs.org",
 }
 ```
 

lib/config.ts

@@ -293,7 +293,8 @@ export function mapAuditCiConfigToAuditCiFullConfig(
 }
 
 export async function runYargs(): Promise<AuditCiFullConfig> {
-  const { argv } = yargs().config("config", (configPath) =>
+  const { argv } = yargs()
+    .config("config", (configPath) =>
       // Supports JSON, JSONC, & JSON5
       jju.parse(readFileSync(configPath, "utf8"), {
         // When passing an allowlist using NSRecord syntax, yargs will throw an error

lib/yarn-auditor.ts

@@ -1,6 +1,4 @@
-import type { YarnAudit, YarnBerryAuditReport } from "audit-types";
-import { execSync } from "child_process";
-import * as semver from "semver";
+import type { YarnAudit, Yarn2And3AuditReport } from "audit-types";
 import { blue, red, yellow } from "./colors.js";
 import { reportAudit, runProgram } from "./common.js";
 import {
@@ -9,38 +7,14 @@ import {
   type AuditCiFullConfig,
 } from "./config.js";
 import Model, { type Summary } from "./model.js";
-
-const MINIMUM_YARN_CLASSIC_VERSION = "1.12.3";
-const MINIMUM_YARN_BERRY_VERSION = "2.4.0";
-/**
- * Change this to the appropriate version when
- * yarn audit --registry is supported:
- * @see https://github.com/yarnpkg/yarn/issues/7012
- */
-const MINIMUM_YARN_AUDIT_REGISTRY_VERSION = "99.99.99";
-
-function getYarnVersion(cwd?: string) {
-  const version = execSync("yarn -v", { cwd }).toString().replace("\n", "");
-  return version;
-}
-
-function yarnSupportsClassicAudit(yarnVersion: string | semver.SemVer) {
-  return semver.satisfies(yarnVersion, `^${MINIMUM_YARN_CLASSIC_VERSION}`);
-}
-
-function yarnSupportsBerryAudit(yarnVersion: string | semver.SemVer) {
-  return semver.gte(yarnVersion, MINIMUM_YARN_BERRY_VERSION);
-}
-
-function yarnSupportsAudit(yarnVersion: string | semver.SemVer) {
-  return (
-    yarnSupportsClassicAudit(yarnVersion) || yarnSupportsBerryAudit(yarnVersion)
-  );
-}
-
-function yarnAuditSupportsRegistry(yarnVersion: string | semver.SemVer) {
-  return semver.gte(yarnVersion, MINIMUM_YARN_AUDIT_REGISTRY_VERSION);
-}
+import {
+  MINIMUM_YARN_BERRY_VERSION,
+  MINIMUM_YARN_CLASSIC_VERSION,
+  getYarnVersion,
+  yarnAuditSupportsRegistry,
+  yarnSupportsAudit,
+  yarnSupportsClassicAudit,
+} from "./yarn-version.js";
 
 const printJson = (data: unknown) => {
   console.log(JSON.stringify(data, undefined, 2));
@@ -83,7 +57,7 @@ export async function auditWithFullConfig(
   let missingLockFile = false;
   const model = new Model(config);
 
-  const yarnVersion = getYarnVersion(directory);
+  const yarnVersion = getYarnVersion(yarnExec, directory);
   const isYarnVersionSupported = yarnSupportsAudit(yarnVersion);
   if (!isYarnVersionSupported) {
     throw new Error(
@@ -94,7 +68,7 @@ export async function auditWithFullConfig(
   const yarnName = isYarnClassic ? `Yarn` : `Yarn Berry`;
 
   function isClassicGuard(
-    response: YarnAudit.AuditResponse | YarnBerryAuditReport.AuditResponse,
+    response: YarnAudit.AuditResponse | Yarn2And3AuditReport.AuditResponse,
   ): response is YarnAudit.AuditResponse {
     return isYarnClassic;
   }
@@ -147,7 +121,7 @@ export async function auditWithFullConfig(
               printJson(data);
             }
           }
-        : ({ metadata }: { metadata: YarnBerryAuditReport.AuditMetadata }) => {
+        : ({ metadata }: { metadata: Yarn2And3AuditReport.AuditMetadata }) => {
             printJson(metadata);
           };
       break;
@@ -159,7 +133,7 @@ export async function auditWithFullConfig(
               printJson(data);
             }
           }
-        : ({ metadata }: { metadata: YarnBerryAuditReport.AuditMetadata }) => {
+        : ({ metadata }: { metadata: Yarn2And3AuditReport.AuditMetadata }) => {
             printJson(metadata);
           };
       break;
@@ -172,7 +146,7 @@ export async function auditWithFullConfig(
   }
 
   function outListener(
-    line: YarnAudit.AuditResponse | YarnBerryAuditReport.AuditResponse,
+    line: YarnAudit.AuditResponse | Yarn2And3AuditReport.AuditResponse,
   ) {
     try {
       if (isClassicGuard(line)) {
@@ -193,7 +167,7 @@ export async function auditWithFullConfig(
         printAuditData(line);
 
         if ("advisories" in line) {
-          for (const advisory of Object.values<YarnBerryAuditReport.Advisory>(
+          for (const advisory of Object.values<Yarn2And3AuditReport.Advisory>(
             line.advisories,
           )) {
             model.process(advisory);

lib/yarn-version.ts

@@ -0,0 +1,39 @@
+import { execSync } from "child_process";
+import semver from "semver";
+
+export const MINIMUM_YARN_CLASSIC_VERSION = "1.12.3";
+export const MINIMUM_YARN_BERRY_VERSION = "2.4.0";
+/**
+ * Change this to the appropriate version when
+ * yarn audit --registry is supported:
+ * @see https://github.com/yarnpkg/yarn/issues/7012
+ */
+const MINIMUM_YARN_AUDIT_REGISTRY_VERSION = "99.99.99";
+
+export function yarnSupportsClassicAudit(yarnVersion: string | semver.SemVer) {
+  return semver.satisfies(yarnVersion, `^${MINIMUM_YARN_CLASSIC_VERSION}`);
+}
+
+export function yarnSupportsBerryAudit(yarnVersion: string | semver.SemVer) {
+  return semver.gte(yarnVersion, MINIMUM_YARN_BERRY_VERSION);
+}
+
+export function yarnSupportsAudit(yarnVersion: string | semver.SemVer) {
+  return (
+    yarnSupportsClassicAudit(yarnVersion) || yarnSupportsBerryAudit(yarnVersion)
+  );
+}
+
+export function yarnAuditSupportsRegistry(yarnVersion: string | semver.SemVer) {
+  return semver.gte(yarnVersion, MINIMUM_YARN_AUDIT_REGISTRY_VERSION);
+}
+
+const versionMap = new Map<string, string>();
+export function getYarnVersion(yarnExec = "yarn", cwd?: string) {
+  const key = `${yarnExec}:${cwd}`;
+  let version = versionMap.get(key);
+  if (version) return version;
+  version = execSync(`${yarnExec} -v`, { cwd }).toString().replace("\n", "");
+  versionMap.set(key, version);
+  return version;
+}