netlify should only deploy when repo is tagged

[boneskull]

@Munter when we merge changes into master which have documentation updates, those updates go live, even if the features they describe aren't yet in Mocha.

I'd like to have it deploy when:

• a new Git tag or release happens
• manually

(ideally both)

Is that doable?

[Munter]

Manual deploy is certainly possible. That sounds quite impractical though. I don't see anything in the admin interface that would allow only deploying on a release.

These re the options available:

I guess we could have a docs branch and merge master into it whenever we want to deploy the documentation.

I can ask netlify if there is a way to trigger deploys on releases. Their rest API doesn't seem to have a hook to trigger a deploy for a commit/tag

[boneskull]

yeah I guess we can automate a branch push upon release

[boneskull]

For now let's just use a docs branch. Let's add a postpublish script which resets the branch to the latest tag.

If there isn't a module on npm to do this, let's publish one.

[samuelcolvin]

Just found this issue while trying to find out whether netlify have built-in support for release only on tags.

Apparently, they don't which I think is mad.

But my workaround for pydantic is to setup netlify to deploy a fictional branch foobar (to avoid netlify auto-deploying), then manually deploy from CI when a tag is created, see here for the makefile command, and here for the travis setup.

I think that's more elegant than manually pushing to a branch.

[boneskull]

@samuelcolvin thanks for the tip!

[Munter]

The lodash.com has a setup where the docs are availabel for the latest version of each major version release. This is using jekyll and netlify for hosting. Maybe there is inspiration to be found here:

https://github.com/lodash/lodash.com/blob/master/_config.yml#L6-L9
https://github.com/lodash/lodash.com/blob/master/_redirects#L4-L12

[boneskull]

cc @Munter @craigtaub

I tried this:

1. I rolled back to the earliest good deploy of v5.2.0 (deploys were failing around the release, but this was fixed sometime after). That's eeccd05 if we want to be specific.
2. I disabled auto-publishing of the production branch (master)
3. I didn't change our deployment preview settings.
4. I created an incoming webhook on netlify. These only trigger a build against a selected branch. I selected master.
5. I created an outgoing webhook on GitHub to be triggered whenever a GitHub "release" event occurs.

This doesn't work, unfortunately, because of the disabled auto-publishing.

Netlify's API has an endpoint to lock/unlock auto-publishing, however. I'll see what I can do with this. If I can't figure it out, we'll just have to create a branch for doc publishing, and update that branch every time we tag a release (or automate it).