polymer-cli is huge and very slow to install

[43081j]

We currently have a build which runs on VSTS online (visual studio), it installs polymer-cli globally per build.

While this is inefficient and we should probably cache global deps across some builds, it doesn't excuse the fact that polymer-cli takes us 9 minutes to install.

Looking at the dependency tree, apparently (according to cost-of-modules util):

• web-component-tester is 171M
• polymer-build is 78M
• polymer-analyzer is 22M

web-component-tester dependencies:

• polymer-build is 101M

so is this dependency size pretty much because we have differing versions of our own repos across other repos? if all polymer-* projects had the same dependencies exactly, would we have one copy of each and the size would go down? (in this case you'd save 101M from WCT's second polymer-build)

on top of this, installing wct of course results in downloading the sauce binary, but that shouldn't be so slow as it is only ~6MB.

thoughts?

[web-devel]

Also since 1.6 there is npm-shrinkwrap which prevents package deduplication. We install polymer-cli as devDependency (cannot force users to install it globally and it's more reliable when you have to build lots of projects on the same machine i.e. on CI servers).
So there is a huge bump of installed dependencies (and node_modules size) after upgrading from 1.5 to 1.6. It's like ~900 → ~1500 deps.

Also yarn does not support npm-shrinkwrap.json so it doesn't make sense for yarn users

[Nehaw149]

Hi, is there any update?

[Kedar-K]

Hello, i have been trying to install polymer-cli since a hour and it is not installed yet. I used command sudo npm install -g polymer-cli
Is there any other way out to this?

[davidmaxwaterman]

I recommend using nvm to install node[1], and then not using sudo to install polymer-cli (ie just npm install -g polymer-cli).
hth.

[1] https://github.com/creationix/nvm

[Kedar-K]

Thanks @davidmaxwaterman It worked!

[nburn42]

Installing polymer-cli today took over 30 minutes on my machine with a business internet connection.

There were not any errors in --verbose.
It initially quickly downloads a lot of packages then it just sits there for a few minutes on network before it pops to life to update one dependency.
This doesn't seem to be happening with other npm packages.

[stale]

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