On Sun, Feb 26, 2017 at 2:10 PM, Bobby Holley <bobbyhol...@gmail.com> wrote:

> On Sun, Feb 26, 2017 at 9:51 AM, Henri Sivonen <hsivo...@hsivonen.fi>
> wrote:
>
>> I tried to add some panics to a vendored to create (rust-encoding) to
>> see if the code in question runs. However, I didn't get to the running
>> part, because the edited code failed to build.
>>
>> It turns out that each vendored crate has a .cargo-checksum.json file
>> that contains hashes of all the files in the crate, and Cargo refuses
>> to build the crate if the hashes don't match or the
>> .cargo-checksum.json file is removed.
>>
>> This seems hostile not only to experimental local edits as in my case
>> but also to use cases such as uplifting fixes to branches and shipping
>> modified crates if the upstream is slow to accept patches or disagrees
>> with the patches.
>>
>> As far as I can tell, there doesn't seem to be a way to ask cargo to
>> regenerate the .cargo-checksum.json after edits. Also, adding a
>> [replace] section to Cargo.toml of libgkrust pointing to the edited
>> crate under third-party/rust or adding  paths = [ "third-party/rust" ]
>> to .cargo/config.in don't make Cargo happy.
>>
>
> Can you elaborate on what goes wrong here? This worked for ted's
> experiment mentioned upthread, and for me on at least one occasion in
> https://hg.mozilla.org/try/rev/18dc070e0308 (permalink:
> https://pastebin.mozilla.org/8980438 )
>
>
And because pastebin seems to lie about stuff being permanent:
https://gist.github.com/bholley/85dc2277aaa732bce04cc9e672915595



> You'll need to |cargo update| after adding the replace in Cargo.toml to
> update Cargo.lock.
>
>
>>
>> What's the right way to build with edited crates under
>> third-party/rust? (I think we should have an easy way to do so.)
>>
>> --
>> Henri Sivonen
>> hsivo...@hsivonen.fi
>> https://hsivonen.fi/
>> _______________________________________________
>> dev-platform mailing list
>> dev-platform@lists.mozilla.org
>> https://lists.mozilla.org/listinfo/dev-platform
>>
>
>
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