From 84d4e3cf8fce751485637d28d3873af4cfdd4501 Mon Sep 17 00:00:00 2001
From: Lovell Fuller <github@lovell.info>
Date: Fri, 30 Apr 2021 20:42:46 +0100
Subject: [PATCH] Require specific semver functions, aids tree-shaking

---
 install/libvips.js | 9 +++++----
 lib/libvips.js     | 8 +++++---
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/install/libvips.js b/install/libvips.js
index 2dd86a72..a2d1b5e5 100644
--- a/install/libvips.js
+++ b/install/libvips.js
@@ -7,7 +7,8 @@ const stream = require('stream');
 const zlib = require('zlib');
 
 const detectLibc = require('detect-libc');
-const semver = require('semver');
+const semverLessThan = require('semver/functions/lt');
+const semverSatisfies = require('semver/functions/satisfies');
 const simpleGet = require('simple-get');
 const tarFs = require('tar-fs');
 
@@ -96,18 +97,18 @@ try {
       throw new Error(`BSD/SunOS systems require manual installation of libvips >= ${minimumLibvipsVersion}`);
     }
     if (detectLibc.family === detectLibc.GLIBC && detectLibc.version) {
-      if (semver.lt(`${detectLibc.version}.0`, `${minimumGlibcVersionByArch[arch]}.0`)) {
+      if (semverLessThan(`${detectLibc.version}.0`, `${minimumGlibcVersionByArch[arch]}.0`)) {
         throw new Error(`Use with glibc ${detectLibc.version} requires manual installation of libvips >= ${minimumLibvipsVersion}`);
       }
     }
     if (detectLibc.family === detectLibc.MUSL && detectLibc.version) {
-      if (semver.lt(detectLibc.version, '1.1.24')) {
+      if (semverLessThan(detectLibc.version, '1.1.24')) {
         throw new Error(`Use with musl ${detectLibc.version} requires manual installation of libvips >= ${minimumLibvipsVersion}`);
       }
     }
 
     const supportedNodeVersion = process.env.npm_package_engines_node || require('../package.json').engines.node;
-    if (!semver.satisfies(process.versions.node, supportedNodeVersion)) {
+    if (!semverSatisfies(process.versions.node, supportedNodeVersion)) {
       throw new Error(`Expected Node.js version ${supportedNodeVersion} but found ${process.versions.node}`);
     }
 
diff --git a/lib/libvips.js b/lib/libvips.js
index 8a6dac2d..4b007ba4 100644
--- a/lib/libvips.js
+++ b/lib/libvips.js
@@ -4,13 +4,15 @@ const fs = require('fs');
 const os = require('os');
 const path = require('path');
 const spawnSync = require('child_process').spawnSync;
-const semver = require('semver');
+const semverCoerce = require('semver/functions/coerce');
+const semverGreaterThanOrEqualTo = require('semver/functions/gte');
+
 const platform = require('./platform');
 
 const env = process.env;
 const minimumLibvipsVersionLabelled = env.npm_package_config_libvips || /* istanbul ignore next */
   require('../package.json').config.libvips;
-const minimumLibvipsVersion = semver.coerce(minimumLibvipsVersionLabelled).version;
+const minimumLibvipsVersion = semverCoerce(minimumLibvipsVersionLabelled).version;
 
 const spawnSyncOptions = {
   encoding: 'utf8',
@@ -105,7 +107,7 @@ const useGlobalLibvips = function () {
   }
   const globalVipsVersion = globalLibvipsVersion();
   return !!globalVipsVersion && /* istanbul ignore next */
-    semver.gte(globalVipsVersion, minimumLibvipsVersion);
+    semverGreaterThanOrEqualTo(globalVipsVersion, minimumLibvipsVersion);
 };
 
 module.exports = {