Granular app locator

[bpierre]

Allows to set the app locator in a more granular way:

• Bridges can be defined individually, using a comma-separated list.
• An app can be defined using its app ID directly, its ENS name ending in (.aragonpm.eth), or its known name if it exists (Finance, TokenManager, etc.).
• Known names also have a known location (http://localhost:<port>/), that gets used by default if not provided.
• If only a port is provided, localhost is used as a domain.

Load all known apps from the local host, as before:

ARAGON_APP_LOCATOR=local npm start

Only load the finance app from the local host (known port):

ARAGON_APP_LOCATOR=Finance npm start

Load the finance app from localhost:1234:

ARAGON_APP_LOCATOR=Finance:1234 npm start

Load the finance app and the Tokens app from the local host (known port):

ARAGON_APP_LOCATOR=Finance,TokenManager npm start 

Load the 0x6b20… app (app ID) from localhost:3333:

ARAGON_APP_LOCATOR=0x6b20…:3333 npm start

Load the my-app.aragonpm.eth app (ENS ID) from localhost:

ARAGON_APP_LOCATOR=my-app.aragonpm.eth npm start

Load the Voting app from https://example.com:4444:

ARAGON_APP_LOCATOR=Voting:https://example.com:4444/

[sohkai]

What do you think about calling this an "override"?

We still fallback to loading apps that aren't included in this by using their IPFS content.

[bpierre]

Yes 👍

[bpierre]

I renamed it parseAppLocator(), I think it makes more sense and doesn’t conflict with getAppLocator() which returns the string from the env. What do you think?

[sohkai]

Hmm wondering about this; right now, this would force all apps to use the default local override even if they're not part of the list.

I think we should still be checking that DEFAULT_LOCAL_URLS[appId] exists?

[bpierre]

mmm we don’t have an appId at this stage? We are only getting the list of defined app locators. Then in appBaseUrl(), we only override if the app ID exists in that object.

[sohkai]

Let's also add some documentation to CONFIGURATION.md 😄

[bpierre]

Let's also add some documentation to CONFIGURATION.md

Done!

[sohkai]

Awesome 🙌🙌

So excited this is finally done :).