[GH-ISSUE #659] In the treeview example (demos) when the directory visited does not have read permission, the app crashes #484

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opened 2026-03-04 01:05:24 +03:00 by kerem · 4 comments

kerem commented

2026-03-04 01:05:24 +03:00

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Originally created by @serge-hulne on GitHub (Sep 30, 2021).
Original GitHub issue: https://github.com/rivo/tview/issues/659

In the treeview example (demos) when the directory visited does not have read permission, the app crashes :

https://github.com/rivo/tview/tree/master/demos/treeview

Originally created by @serge-hulne on GitHub (Sep 30, 2021). Original GitHub issue: https://github.com/rivo/tview/issues/659 In the treeview example (demos) when the directory visited does not have read permission, the app crashes : https://github.com/rivo/tview/tree/master/demos/treeview

kerem closed this issue

2026-03-04 01:05:24 +03:00

kerem commented

2026-03-04 01:05:25 +03:00

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@rivo commented on GitHub (Sep 30, 2021):

I know. I wouldn't say it crashes, it panics. It's not meant to be a fully featured file browser. It just demonstrates the use of the TreeView primitive.

@rivo commented on GitHub (Sep 30, 2021): I know. I wouldn't say it crashes, it panics. It's not meant to be a fully featured file browser. It just demonstrates the use of the `TreeView` primitive.

kerem commented

2026-03-04 01:05:25 +03:00

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@serge-hulne commented on GitHub (Sep 30, 2021):

Thanks!
How could I catch this exception?

@serge-hulne commented on GitHub (Sep 30, 2021): Thanks! How could I catch this exception?

kerem commented

2026-03-04 01:05:25 +03:00

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@rivo commented on GitHub (Sep 30, 2021):

It's uncommon to catch panics in Golang. You'll need to decide what to do with a directory for which you don't have permission, then do that instead of panicking. This is where it happens:

github.com/rivo/tview@ee97a7ab39/demos/treeview/main.go (L26)

@rivo commented on GitHub (Sep 30, 2021): It's uncommon to catch panics in Golang. You'll need to decide what to do with a directory for which you don't have permission, then do that instead of panicking. This is where it happens: https://github.com/rivo/tview/blob/ee97a7ab3975c51dba32df8979eb97b31cada430/demos/treeview/main.go#L26

kerem commented

2026-03-04 01:05:25 +03:00

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@serge-hulne commented on GitHub (Sep 30, 2021):

Thank you!

@serge-hulne commented on GitHub (Sep 30, 2021): Thank you!