Summary:
The reasoning behind this change is that right now, having both added and modified modules inside of a single `modules` field doesn't allow for basic operations like combining two deltas.
For instance, say I have three different bundle revisions: A, B and C.
Module 42 was added in B, and then removed in C.
A->B = `{modules: [42, "..."], deleted: []}`
B->C = `{modules: [], deleted: [42]}`
A->C = `{modules: [], deleted: []}`
However, were we to compute A->C as the combination of A->B and B->C, it would result in `{modules: [], deleted: [42]}` because we have no way of knowing that module 42 was only just added in B.
This means that the `deleted` field of delta X->Y might eventually contain module ids that were never present in revision X, because they were added and then removed between revisions X and Y.
The last time I changed the delta format, we had a few bug reports pop out from people who had desync issues between their version of React Native and their version of Metro. As such, I've tried to make this change backwards compatible in at least one direction (new RN, old Metro). However, this will still break if someone is using a newer version of Metro and an older version of RN. I created T37123645 to follow up on this.
Reviewed By: rafeca, fromcelticpark
Differential Revision: D13156514
fbshipit-source-id: 4a4ee3b6cc0cdff5dca7368a46d7bf663769e281
Summary: Fixes a minor Flow type error when `minimist` is typed via `flow-typed`.
Reviewed By: TheSavior
Differential Revision: D13188680
fbshipit-source-id: 9ad35a3222c8937163a998a2751efd95945af3c7
Summary:
Modified the ESLint configuration to only enable the Jest environment for files we consider now tests, which are files with the `-test.js` suffix under `__tests__`. Also enabled some globals for test helpers (any file under `__tests__`).
This will allow us to catch misspelled tests, while allowing test helpers to use most Jest APIs.
Also disabled the Jasmine environment so people stop using Jasmine APIs and we can rollout Circus soon.
Reviewed By: aaronabramov
Differential Revision: D13199591
fbshipit-source-id: 12a32cf5835630b9987452b0c33d3f8085001689
Summary:
Renamed test files to match `-test.js`, so people can add test helpers without blacklisting.
Codemod code: P60365841
Script executed:
```
cd xplat/js
./scripts/node/node rename-script.js > result.txt
```
Reviewed By: mjesun
Differential Revision: D13185673
fbshipit-source-id: 87451635aa538c2c1d1886e75574d0e5c889596e
Summary:
Constructing `Buffer` using the constructor [[https://nodesource.com/blog/understanding-the-buffer-deprecation-in-node-js-10/ | has been deprecated in Node 10 due to security considerations]].
This is a simple and straightforward conversion.
Reviewed By: mjesun
Differential Revision: D13080655
fbshipit-source-id: 100d8f28c3b255422b26e820aaadcc4f32f41e0d
Summary: Adds support for the `deleted` key to remove modules from the bundle. Without this, source maps would break after removing a module, since it would still end up in the patched bundle but not in the source map.
Reviewed By: mjesun
Differential Revision: D12874011
fbshipit-source-id: 79239756854cb2c02f14ec8b0bb2b649766393fe
Alexandre Kirszenberg