Run yarn during ejecting to avoid hoisting issues and fix CI #3806
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| Could never get this working on windows: #3347 |
| We somehow run Yarn from Create React App itself, don't we? So maybe we could run it in the same way? |
| If this passes Travis but doesn't work on Windows we'll debug further with @BYK tomorrow. |
| Ooh maybe this is because we delete |
| For future reference, what likely happens here is that running |
gaearon force-pushed the fix-ci branch 2 times, most recently from 5a00671 to 5bc562a Compare | This works. Travis has some temporary issues but they're not our fault. |
This was referenced Jan 16, 2018
gaearon changed the title yarn during ejecting to avoid hoisting issues and fix CI 
akstuhl pushed a commit to akstuhl/create-react-app that referenced this pull request Mar 15, 2018
* Try to fix CI * Bump Jest elsewhere * Bump Babel elsewhere * Fix CI on Windows by writing .cmd file back
zmitry pushed a commit to zmitry/create-react-app that referenced this pull request Sep 30, 2018
* Try to fix CI * Bump Jest elsewhere * Bump Babel elsewhere * Fix CI on Windows by writing .cmd file back
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Our CI started failing, possibly after Jest released a 21.1.0 update.
After chatting to @BYK our best guess is that because we didn't re-run Yarn after ejecting, the new script location (in the root
/scriptsfolder rather than innode_modules/react-scripts/scripts) started picking up a differentbabel-coreversion that was previously being hoisted (6.x judging by the stack trace that has/lib/in it) than the onereact-scriptswanted (7.0 bridge).Our current behavior always seemed weird to me (#3356), and now that it's possibly causing bugs, I think we should try getting rid of that special case. Perhaps those issues in the TODO are not relevant anymore, or maybe we can find better fixes for them. Conceptually re-running yarn sounds like the only right thing to do.
I'm kind of shooting in the dark here so I also tried to update other Jest packages while we're at it.