npx jetify -r does not working about jetifier HOT 11 CLOSED

jetifier does not modify gradle files, they library will have to include backwards-compatible support as mentioned in the module maintainers section - here's an example react-native-device-info/react-native-device-info@d448d87

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(you can do something like this and use patch-package to get your build working, FWIW - that's how I usually operate while waiting for a PR to be merged upstream)

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Just one more question. Jetifier does not modify gradle files at all? or just in reverse mode?

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Not at all, Google hasn't provided a mapping as it is different for different use cases

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@mikehardy I guess I don't understand:

• When you run the Refactor -> Migrate to AndroidX in Android Studio, it's doing file rewrites (in that case, you can review the refactor. But the default refactor seems to work for me usually without edits).
• And, you say in the Jetifier NPM doc "That is what this tool does - it can rewrite the source in node_modules every time you call it."
• But above you are saying it does not modify files. So... what DOES it do?

Edit: I missed that you are supposed to use the Studio tool first. So I'm guessing Jetifier is just kindof like patch-package, where it stores those updates and re-applies them?

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No, jetifier literally scans the whole tree every time you run it, and applies "the standard transform" (literally the file from google of what transforms to what - you can check the SHA256 of the file) plus a couple extras that are necessary. Every time, in node_modules tree.

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https://github.com/mikehardy/jetifier/blob/master/mapping/androidx-class-mapping.csv

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@mikehardy sorry but something's not clear to me
So if you don't want to migrate to AndroidX yet, and you choose to reverse jetify some package (in my case: react-native-camera)
Should you skip the 1st step (Refactor -> Migrate to AndroidX in Android Studio), or you still need it?

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Hi @realesh ! AndroidX conversion is a binary thing, all one way or all the other way. If you want to stay on support libraries (not AndroidX) then you will use jetify -r and you will not migrate to androidx in android studio

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I just re-read that section and it was confusing, I changed it a bit, is it more clear now @realesh ?

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@mikehardy Yes it's more clearer now indeed!
Thx a lot 👍

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