How to npm install --save all packages already installed?

Question

Is there a way I can update package.json from node_modules directory? Sometimes I forget to use --save flag.

Thanks!

Oh I know the problem! But I'm afraid there is no native npm solution. Maybe it's possible to build a shell script iterating over the `node_modules` folder and then running some npm command? I'm very interested for an answer, too! — ConcurrentHashMap, Aug 21 '14 at 05:30
@ConcurrentHashMap is it possible to use grunt/gulp for this ? — Rishabh Agrawal, Apr 26 '17 at 00:04
iterating each node_modules folder will include rudundant packages as well — Rishabh Agrawal, Apr 26 '17 at 00:05

score 25 · Accepted Answer · answered Aug 21 '14 at 05:49

25

I came up with this simple cmd

npm install `ls node_modules` --save

It's good enough for my case :-)

answered Aug 21 '14 at 05:49

TLJ

1

In a blank repository if I `npm install --save chalk`, my node_modules folder contains 7 entries (ansi-regex/ ansi-styles/ chalk/ escape-string-regexp/ has-ansi/ strip-ansi/ supports-color/). installing chalk, node-sass and gulp gives 233 packages in the node_modules folder. I am using git bash on windows. – goldenratio Jun 13 '16 at 18:48
@goldenratio At the time I was asking(2014), npm would only install the package on top level. All other dependencies of that package would be installed in local node_modules of that package. You can verify that by download node v0.11.14 or so – TLJ Jun 13 '16 at 23:34
2

Certainly, but for someone stumbling upon this page today, it could be helpful for them to know this will no longer work. – goldenratio Jun 14 '16 at 18:25
I just got lots of `npm ERR! registry error parsing json` – Tam Borine Dec 24 '16 at 14:29
that may have something to do with npm version. – TLJ Dec 25 '16 at 17:08

1 Answers1