[eas-json] Allow extending with multiple build and submit profiles

[khamilowicz]

Why

ENG-14628: Add ability to extend multiple build profiles in eas.json

#2664

It would be beneficial for users to be able to create more granular build profiles and then compose them into their specific use cases. This can be achieved by allowing specifying multiple profiles that are used for extending current profile:

{
   "build": {
        "parent1": {},
        "parent2": {},
        "development": {
            "extends": ["parent1", "parent2"]
        }
    }
}

How

• Allow extending profiles with multiple parents
• The order of parents determines the precedence of profiles' configs.

Test Plan

Added tests.

Manual testing:

One of the ways to test this feature is to create an iOS build using a eas.json file with a similar content:

    "test": {
      "env": {
        "THIS_IS": "test"
      },
    },
    "base": {
      "env": {
        "THIS_IS": "base"
      },
    },
    "development": {
      "extends": [
        "test",
        "base"
      ],
      "env": {
        "THIS_IS": "development"
      },
    },
 }

2. Test for various combinations of extends and the environment variable presence. Verify in logs which variable is used for which combination.
3. The precedence should be the following:

• variable defined in the current profile (development)
• variable defined in the first specified parent
• variable defined in the second specified parent

[linear]

ENG-14628 Add ability to extend multiple build profiles in eas.json

[github-actions]

✅ Thank you for adding the changelog entry!

[github-actions]

Size Change: -1.1 kB (0%)

Total Size: 53.4 MB

Filename	Size	Change
./packages/eas-cli/dist/eas-linux-x64.tar.gz	53.4 MB	-1.1 kB (0%)

_{compressed-size-action}

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 52.37%. Comparing base (379036a) to head (aa25cba).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2987      +/-   ##
==========================================
+ Coverage   52.36%   52.37%   +0.02%     
==========================================
  Files         596      596              
  Lines       23698    23704       +6     
  Branches     4714     4716       +2     
==========================================
+ Hits        12407    12413       +6     
  Misses      11256    11256              
  Partials       35       35              

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[github-actions]

Subscribed to pull request

File Patterns	Mentions
**/*	@sjchmiela, @radoslawkrzemien

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[Copilot]

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