feat: when strict checking is off, treat like transparent

Author: kenrick95

sources/specUtils.ts

@@ -44,7 +44,8 @@ export async function findProjectSpec(initialCwd: string, locator: Locator, {tra
   // A locator is a valid descriptor (but not the other way around)
   const fallbackLocator = {name: locator.name, range: locator.reference};
 
-  if (process.env.COREPACK_ENABLE_STRICT === `0`) return fallbackLocator;
+  if (process.env.COREPACK_ENABLE_STRICT === `0`)
+    transparent = true;
 
   while (true) {
     const result = await loadSpec(initialCwd);

tests/main.test.ts

@@ -281,6 +281,31 @@ it(`should refuse to run a different package manager within a configured project
   });
 });
 
+
+it(`should use project-specified version when strict checking is turned off`, async () => {
+  await xfs.mktempPromise(async cwd => {
+    await xfs.writeJsonPromise(ppath.join(cwd, `package.json` as Filename), {
+      packageManager: `[email protected]`,
+    });
+
+    process.env.COREPACK_ENABLE_STRICT = `0`;
+
+    try {
+      await expect(runCli(cwd, [`yarn`, `--version`])).resolves.toMatchObject({
+        stdout: `2.2.2\n`,
+        stderr: ``,
+        exitCode: 0,
+      });
+      await expect(runCli(cwd, [`pnpm`, `--version`])).resolves.toMatchObject({
+        stdout: `${config.definitions.pnpm.default.split(`+`, 1)[0]}\n`,
+        exitCode: 0,
+      });
+    } finally {
+      delete process.env.COREPACK_ENABLE_STRICT;
+    }
+  });
+});
+
 it(`should allow to call "prepare" with --all to prepare all package managers`, async () => {
   await xfs.mktempPromise(async cwd => {
     await xfs.writeJsonPromise(ppath.join(cwd, `package.json` as Filename), {