From 7530e75ee91ed01cb43c39c7171781a500b6c770 Mon Sep 17 00:00:00 2001
From: Yuku Kotani <yukukotani@gmail.com>
Date: Sat, 5 Aug 2023 08:57:09 +0900
Subject: [PATCH 1/5] allow checkPlatform to override the execution environment

---
 README.md    | 6 +++++-
 lib/index.js | 6 +++---
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/README.md b/README.md
index 25ed222..c8f057f 100644
--- a/README.md
+++ b/README.md
@@ -19,10 +19,14 @@ npm is unable to install the package properly for some reason.
 
 Error code: 'EBADENGINE'
 
-### .checkPlatform(pkg, force)
+### .checkPlatform(pkg, force, environment)
 
 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.
+
+```js
+
 Error code: 'EBADPLATFORM'
diff --git a/lib/index.js b/lib/index.js
index fa5f593..394fbb5 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -22,13 +22,13 @@ const checkEngine = (target, npmVer, nodeVer, force = false) => {
 
 const isMusl = (file) => file.includes('libc.musl-') || file.includes('ld-musl-')
 
-const checkPlatform = (target, force = false) => {
+const checkPlatform = (target, force = false, environment = {}) => {
   if (force) {
     return
   }
 
-  const platform = process.platform
-  const arch = process.arch
+  const platform = environment && environment.os ? environment.os : process.platform
+  const arch = environment && environment.cpu ? environment.cpu : process.arch
   const osOk = target.os ? checkList(platform, target.os) : true
   const cpuOk = target.cpu ? checkList(arch, target.cpu) : true
 

From ff74213930e38cbbec6454a9e044de480cdbec8e Mon Sep 17 00:00:00 2001
From: Yuku Kotani <yukukotani@gmail.com>
Date: Sat, 5 Aug 2023 09:00:19 +0900
Subject: [PATCH 2/5] remove needless comment

---
 README.md | 2 --
 1 file changed, 2 deletions(-)

diff --git a/README.md b/README.md
index c8f057f..828b007 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,4 @@ Check if a package's `os`, `cpu` and `libc` match the running system.
 
 `environment` overrides the execution environment which comes from `process.platform` and `process.arch` by default. `environment.os` and `environment.cpu` are available.
 
-```js
-
 Error code: 'EBADPLATFORM'

From d9b4234687c6971b2c8d0f6d79460d31a2b49608 Mon Sep 17 00:00:00 2001
From: Yuku Kotani <yukukotani@gmail.com>
Date: Tue, 8 Aug 2023 00:16:52 +0900
Subject: [PATCH 3/5] add test

---
 test/check-platform.js | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/test/check-platform.js b/test/check-platform.js
index 48af678..231cca6 100644
--- a/test/check-platform.js
+++ b/test/check-platform.js
@@ -43,6 +43,38 @@ t.test('os wrong (negation)', async t =>
 t.test('nothing wrong (negation)', async t =>
   checkPlatform({ cpu: '!enten-cpu', os: '!enten-os' }))
 
+t.test('nothing wrong with overridden os', async t =>
+  checkPlatform({
+    cpu: 'any',
+    os: 'enten-os',
+  }, false, {
+    os: 'enten-os',
+  }))
+
+t.test('nothing wrong with overridden cpu', async t =>
+  checkPlatform({
+    cpu: 'enten-cpu',
+    os: 'any',
+  }, false, {
+    cpu: 'enten-cpu',
+  }), { code: 'EBADPLATFORM' })
+
+t.test('wrong os with overridden os', async t =>
+  t.throws(() => checkPlatform({
+    cpu: 'any',
+    os: 'enten-os',
+  }, false, {
+    os: 'another-os',
+  }), { code: 'EBADPLATFORM' }))
+
+t.test('wrong cpu with overridden cpu', async t =>
+  t.throws(() => checkPlatform({
+    cpu: 'enten-cpu',
+    os: 'any',
+  }, false, {
+    cpu: 'another-cpu',
+  }), { code: 'EBADPLATFORM' }))
+
 t.test('libc', (t) => {
   let PLATFORM = ''
 

From 76b0df674da9499660e1b72eb41a05dbfefaf1e3 Mon Sep 17 00:00:00 2001
From: Yuku Kotani <yukukotani@gmail.com>
Date: Tue, 8 Aug 2023 00:38:38 +0900
Subject: [PATCH 4/5] remove needless typeguard

---
 lib/index.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/index.js b/lib/index.js
index 394fbb5..f0ba2c0 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -27,8 +27,8 @@ const checkPlatform = (target, force = false, environment = {}) => {
     return
   }
 
-  const platform = environment && environment.os ? environment.os : process.platform
-  const arch = environment && environment.cpu ? environment.cpu : process.arch
+  const platform = environment.os || process.platform
+  const arch = environment.cpu || process.arch
   const osOk = target.os ? checkList(platform, target.os) : true
   const cpuOk = target.cpu ? checkList(arch, target.cpu) : true
 

From c5734ed45344a9b99bdaf847e6703529d407f6ff Mon Sep 17 00:00:00 2001
From: Yuku Kotani <poyo0315@gmail.com>
Date: Tue, 8 Aug 2023 01:07:02 +0900
Subject: [PATCH 5/5] Update test/check-platform.js

Co-authored-by: Gar <wraithgar@github.com>
---
 test/check-platform.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/check-platform.js b/test/check-platform.js
index 231cca6..a84b965 100644
--- a/test/check-platform.js
+++ b/test/check-platform.js
@@ -57,7 +57,7 @@ t.test('nothing wrong with overridden cpu', async t =>
     os: 'any',
   }, false, {
     cpu: 'enten-cpu',
-  }), { code: 'EBADPLATFORM' })
+  }))
 
 t.test('wrong os with overridden os', async t =>
   t.throws(() => checkPlatform({