Avoid reading files from Haste map if not needed#6667
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mjesun merged 2 commits intojestjs:masterfrom Jul 10, 2018
mjesun:haste-map-avoid-reading-files
Merged
Avoid reading files from Haste map if not needed#6667mjesun merged 2 commits intojestjs:masterfrom mjesun:haste-map-avoid-reading-files
mjesun merged 2 commits intojestjs:masterfrom
mjesun:haste-map-avoid-reading-files
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thymikee
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Jul 10, 2018
Codecov Report
@@ Coverage Diff @@
## master #6667 +/- ##
==========================================
+ Coverage 63.73% 63.77% +0.03%
==========================================
Files 235 235
Lines 8940 8943 +3
Branches 3 3
==========================================
+ Hits 5698 5703 +5
+ Misses 3241 3239 -2
Partials 1 1
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This was referenced Jul 10, 2018
calebeby
referenced
this pull request
in Pigmice2733/scouting-frontend
Jul 11, 2018
This Pull Request updates dependency [jest](https://github.com/facebook/jest) from `v23.3.0` to `v23.4.0` <details> <summary>Release Notes</summary> ### [`v23.4.0`](https://github.com/facebook/jest/blob/master/CHANGELOG.md#​2340) [Compare Source](jestjs/jest@v23.3.0...v23.4.0) ##### Features - `[jest-haste-map]` Add `computeDependencies` flag to avoid opening files if not needed ([#​6667](`https://github.com/facebook/jest/pull/6667`)) - `[jest-runtime]` Support `require.resolve.paths` ([#​6471](`https://github.com/facebook/jest/pull/6471`)) - `[jest-runtime]` Support `paths` option for `require.resolve` ([#​6471](`https://github.com/facebook/jest/pull/6471`)) ##### Fixes - `[jest-runner]` Force parallel runs for watch mode, to avoid TTY freeze ([#​6647](`https://github.com/facebook/jest/pull/6647`)) - `[jest-cli]` properly reprint resolver errors in watch mode ([#​6407](`https://github.com/facebook/jest/pull/6407`)) - `[jest-cli]` Write configuration to stdout when the option was explicitly passed to Jest ([#​6447](`https://github.com/facebook/jest/pull/6447`)) - `[jest-cli]` Fix regression on non-matching suites ([6657](`https://github.com/facebook/jest/pull/6657`)) - `[jest-runtime]` Roll back `micromatch` version to prevent regression when matching files ([#​6661](`https://github.com/facebook/jest/pull/6661`)) --- </details> --- This PR has been generated by [Renovate Bot](https://renovatebot.com).
This was referenced Jul 11, 2018
ghost
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Metro also uses
jest-haste-map, but there is no need to extract dependencies from it, since Metro has its own algorithms. This PR implements a boolean flag that avoids reading from the filesystem when we do not want to extract dependencies. The default is kept totrueso it's backwards compatible.I also added specific tests for non-UTF-8 files, and for non-computed dependencies too. The argument is made mandatory at the worker level.