feat: allow package-json.lock and yarn.lock to be uppdated simultaneo…

…usly, fixes #39 (#42)

* feat: allow package-json.lock and yarn.lock to be uppdated simultaneously, fixes #39

* fix: correctly set args for yarn and npm

* fix: revert package-lock.json

lib/update-lockfile.js

@@ -28,17 +28,17 @@ module.exports = function updateLockfile (dependency, options) {
     exec('git revert -n HEAD')
     exec('git reset HEAD')
 
-    // manually reinstall the package so the lockfile is updated
-    const flag = options.yarn ? yarnFlags[dependency.type] : flags[dependency.type]
-    const prefix = options.yarn
-      ? setPrefixYarn(dependency.prefix)
-      : `--save-prefix="${dependency.prefix}"`
-
-    const args = `${flag} ${prefix} ${dependency.name}@${dependency.version}`
-
     if (options.yarn) {
+      const flag = yarnFlags[dependency.type]
+      const prefix = setPrefixYarn(dependency.prefix)
+      const args = `${flag} ${prefix} ${dependency.name}@${dependency.version}`
       exec(`yarn add ${args}`)
-    } else {
+    }
+
+    if (options.npm) {
+      const flag = flags[dependency.type]
+      const prefix = `--save-prefix="${dependency.prefix}"`
+      const args = `${flag} ${prefix} ${dependency.name}@${dependency.version}`
       var npmBin = 'npm'
       try {
         exec('npm5 -v')

update.js

@@ -58,7 +58,8 @@ module.exports = function update () {
   }
 
   updateLockfile(dependency, {
-    yarn: !!yarnLock
+    yarn: !!yarnLock,
+    npm: !!packageLock
   })
 
   console.log('Lockfile updated')