fix: File watcher should watch directories recursively#21771
Merged
Veykril merged 1 commit intorust-lang:masterfrom Mar 10, 2026
Merged
fix: File watcher should watch directories recursively#21771Veykril merged 1 commit intorust-lang:masterfrom
Veykril merged 1 commit intorust-lang:masterfrom
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Currently rust-analyzer only watches the directory itself, and doesn't consider children recursively. This is a problem when the directory itself is deleted and recreated (e.g. if you're creating all of `mycrate/src/` with a code generating script). The obvious solution is to configure rust-analyzer to watch the parent directory (assuming rust-project.json), but that requires recursive watching. This problem probably also occurs when switching between git commits. Instead, watch directories recursively so we can use the file watcher with parent directories. See also discussion on rust-lang#19907. I've tested on some decent sized projects (several hundred transitive dependencies) and performance seemed fine.
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Veykril approved these changes Mar 10, 2026
rustbot removed the S-waiting-on-review 
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Currently rust-analyzer only watches the directory itself, and doesn't consider children recursively.
This is a problem when the directory itself is deleted and recreated (e.g. if you're creating all of
mycrate/src/with a code generating script). The obvious solution is to configure rust-analyzer to watch the parent directory (assuming rust-project.json), but that requires recursive watching.This problem probably also occurs when switching between git commits.
Instead, watch directories recursively so we can use the file watcher with parent directories.
See also discussion on #19907.
I've tested on some decent sized projects (several hundred transitive dependencies) and performance seemed fine.