Comments (7)
ndarilek
commented on May 17, 2024
Did some digging. This, too, is related to the fact that I'm building a library crate. Cargo-web indicates that &last_build.target.source_directory is $crate_root/src/bin, not $crate_root/src.
I can probably refactor this crate from lib to bin I built it initially not knowing whether I could build all my native dependencies in Emscripten, so thinking I might need JNI. Still, though, might be good to fix this. I don't know if there's a struct member that points at $crate_root/src, but that's probably a better candidate for watching.
Thanks.
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koute
commented on May 17, 2024
Wait... how did you do that? The start command explicitly looks for a bin crate and refuses to start when it doesn't find one.
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ndarilek
commented on May 17, 2024
Maybe I'm misunderstanding what bin/lib crates are.
My crate had src/lib.rs containing the main code, re-exports of other
modules, etc. It also had src/bin/mycratename.rs built as a binary using
my lib. My initial intent was to test functionality as I built it using
this binary, then eventually wrap src/lib.rs via swig and use it on
Android. Yesterday I made src/bin/mycratename.rs get its main function
from either src/shell.rs or src/web.rs depending on whether it built on
Emscripten or not. This worked, in that it compiled and ran, but it
failed to detect changes with `start`, and as discussed elsewhere,
static file handling behaved in a surprising way.
So maybe the edge case here is that detection doesn't work when a lib
crate contains a binary.
In any case, since it's pretty clear that I can move ahead with wasm
(barring my native libraries failing at the point when I actually start
using them) I switched to src/main.rs containing both src/lib.rs and
src/bin/mycratename.rs. I assume that's now a bin crate, and that seems
to work just fine.
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koute
commented on May 17, 2024
Ah yes, now I understand the problem! What you have is a hybrid lib/bin crate, and it only monitors the bin part while the lib part is implicitly used.
I'll fix it.
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koute
commented on May 17, 2024
This should be fixed now on master. As a bonus I've added tracking of dependencies and support for modifying Cargo.toml.
Can you try it out and tell me if it works for you?
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ndarilek
commented on May 17, 2024
Ack, already switched to a bin crate, but over the next day or so I'll
check out an older version and test this out.
Thanks!
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koute
commented on May 17, 2024
I think this should be fixed now, so closing! If you'll have any further problems feel free to create a new issue.
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Related Issues (20)
- Update Emscripten support HOT 2
- cargo web build ignores dependency features HOT 1
- cargo web start for single page applications
- https support?
- Error when installing
- cargo-web tet fails, no .js file found HOT 5
- Option to include the wasm file content into the generated .js runtime?
- cargo web uses color even when not supported
- cli: expose option use_system_emscripten - and/or allow to use cached download HOT 1
- Cargo panic when running web build HOT 6
- thread 'main' panicked at 'unknown name section chunk type: 7' HOT 13
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- Cash on cargo web build in WSL HOT 1
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- error: usage of `--profile` requires `-Z unstable-options`
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