fix: npm commands for building dependency tree not working in windows…

… os"

Signed-off-by: Zvi Grinberg <[email protected]>

src/providers/javascript_npm.js

@@ -23,11 +23,20 @@ export var npmInteractions = {
 		})
 	},
 	createPackageLock: function createPackageLock(npm, manifestDir) {
+	// in windows os, --prefix flag doesn't work, it behaves really weird , instead of installing the package.json fromm the prefix folder,
+	// it's installing package.json (placed in current working directory of process) into prefix directory, so
+	    let originalDir = process.cwd()
+	    if(os.platform() === 'win32') {
+	    process.chdir(manifestDir)
+	    }
 		execSync(`${handleSpacesInPath(npm)} i --package-lock-only --prefix ${handleSpacesInPath(manifestDir)}`, err => {
 			if (err) {
 				throw new Error('failed to create npmOutput list')
 			}
 		})
+		 if(os.platform() === 'win32') {
+		   process.chdir(originalDir)
+		 }
 	}
 }
 export default { isSupported, provideComponent, provideStack, npmInteractions }
@@ -109,7 +118,7 @@ function provideComponent(data, opts = {}, path = '') {
  * @return {string} returns a string containing the result output.
  */
 function getNpmListing(npm, allFilter, manifestDir) {
-	return `${handleSpacesInPath(npm)} ls${allFilter} --omit=dev --package-lock-only --json --prefix ${handleSpacesInPath(manifestDir)}`;
+	return `${handleSpacesInPath(npm)} ls${allFilter} --omit=dev --package-lock-only --json --prefix ${manifestDir}`;
 }