Fix for error on Windows that SHARP_IGNORE_GLOBAL_LIBVIPS is not reco… (#219)

* Fix for error on Windows that SHARP_IGNORE_GLOBAL_LIBVIPS is not recognized as n internal or external command.

Author: aatta

packages/open-next/src/build.ts

@@ -319,15 +319,29 @@ function createImageOptimizationBundle() {
   // Sharp provides pre-build binaries for all platforms. https://github.com/lovell/sharp/blob/main/docs/install.md#cross-platform
   // Target should be same as used by Lambda, see https://github.com/sst/sst/blob/ca6f763fdfddd099ce2260202d0ce48c72e211ea/packages/sst/src/constructs/NextjsSite.ts#L114
   // For SHARP_IGNORE_GLOBAL_LIBVIPS see: https://github.com/lovell/sharp/blob/main/docs/install.md#aws-lambda
-  cp.execSync(
-    `SHARP_IGNORE_GLOBAL_LIBVIPS=1 npm install --arch=arm64 --platform=linux --target=18 --libc=glibc --prefix=${path.resolve(
-      outputPath,
-    )} [email protected]`,
-    {
-      stdio: "inherit",
-      cwd: appPath,
-    },
-  );
+
+  //check if we are running in Windows environment then set env variables accordingly.
+  if (process.platform === "win32") {
+    cp.execSync(
+      `set SHARP_IGNORE_GLOBAL_LIBVIPS=1 && npm install --arch=arm64 --platform=linux --target=18 --libc=glibc --prefix=${path.resolve(
+        outputPath,
+      )} [email protected]`,
+      {
+        stdio: "inherit",
+        cwd: appPath,
+      },
+    );
+  } else {
+    cp.execSync(
+      `SHARP_IGNORE_GLOBAL_LIBVIPS=1 npm install --arch=arm64 --platform=linux --target=18 --libc=glibc --prefix=${path.resolve(
+        outputPath,
+      )} [email protected]`,
+      {
+        stdio: "inherit",
+        cwd: appPath,
+      },
+    );
+  }
 }
 
 function createStaticAssets() {