From 04197512179c508abb55fa528d293ee669c19b91 Mon Sep 17 00:00:00 2001
From: LongYinan <lynweklm@gmail.com>
Date: Sat, 7 Oct 2023 01:42:02 +0800
Subject: [PATCH] feat: allow checkPlatform to override execution libc (#71)

- Part of https://github.com/npm/npm-install-checks/pull/65
---
 README.md              |  2 +-
 lib/index.js           |  4 +++-
 test/check-platform.js | 18 ++++++++++++++++++
 3 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 828b007..2dd8c7f 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,6 @@ Check if a package's `os`, `cpu` and `libc` match the running system.
 
 `force` argument skips all checks.
 
-`environment` overrides the execution environment which comes from `process.platform` and `process.arch` by default. `environment.os` and `environment.cpu` are available.
+`environment` overrides the execution environment which comes from `process.platform` `process.arch` and current `libc` environment by default. `environment.os` `environment.cpu` and `environment.libc` are available.
 
 Error code: 'EBADPLATFORM'
diff --git a/lib/index.js b/lib/index.js
index f0ba2c0..545472b 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -36,7 +36,9 @@ const checkPlatform = (target, force = false, environment = {}) => {
   let libcFamily = null
   if (target.libc) {
     // libc checks only work in linux, any value is a failure if we aren't
-    if (platform !== 'linux') {
+    if (environment.libc) {
+      libcOk = checkList(environment.libc, target.libc)
+    } else if (platform !== 'linux') {
       libcOk = false
     } else {
       const report = process.report.getReport()
diff --git a/test/check-platform.js b/test/check-platform.js
index a84b965..00ecf04 100644
--- a/test/check-platform.js
+++ b/test/check-platform.js
@@ -59,6 +59,15 @@ t.test('nothing wrong with overridden cpu', async t =>
     cpu: 'enten-cpu',
   }))
 
+t.test('nothing wrong with overridden libc', async t =>
+  checkPlatform({
+    cpu: 'enten-cpu',
+    libc: 'enten-libc',
+  }, false, {
+    cpu: 'enten-cpu',
+    libc: 'enten-libc',
+  }))
+
 t.test('wrong os with overridden os', async t =>
   t.throws(() => checkPlatform({
     cpu: 'any',
@@ -75,6 +84,15 @@ t.test('wrong cpu with overridden cpu', async t =>
     cpu: 'another-cpu',
   }), { code: 'EBADPLATFORM' }))
 
+t.test('wrong libc with overridden libc', async t =>
+  t.throws(() => checkPlatform({
+    cpu: 'enten-cpu',
+    os: 'any',
+    libc: 'enten-libc',
+  }, false, {
+    libc: 'another-libc',
+  }), { code: 'EBADPLATFORM' }))
+
 t.test('libc', (t) => {
   let PLATFORM = ''