Stream: git-wasmtime

Topic: wasmtime / issue #3326 "--dir" option not in wasmtime hel...

Wasmtime GitHub notifications bot (Sep 10 2021 at 10:17):

andrewdavidmackenzie opened issue #3326:

Thanks for filing a feature request! Please fill out the TODOs below.

Feature

Have all available command line options show in the wasmtime CLI help text

Benefit

People will be able to discover the up-to-date list of options without going to the docs

Implementation

One option is to just add that (and other options we find missing) to the text in wasmtime.rs

Alternatives

Another option (which I would be willing to take a shot at if maintainers like the idea) would be
to use a CLI crate like clap to parse command line arguments and automatically be able to
generate accurate help text from the available options

Wasmtime GitHub notifications bot (Sep 10 2021 at 10:19):

andrewdavidmackenzie commented on issue #3326:

Here is current text for reference:

cargo run -- --help
    Finished dev [unoptimized + debuginfo] target(s) in 0.30s
     Running `target/debug/wasmtime --help`
wasmtime 0.29.0
Wasmtime WebAssembly Runtime

USAGE:
    wasmtime <SUBCOMMAND>

FLAGS:
    -h, --help       Prints help information
    -V, --version    Prints version information

SUBCOMMANDS:
    compile     Compiles a WebAssembly module
    config      Controls Wasmtime configuration settings
    help        Prints this message or the help of the given subcommand(s)
    run         Runs a WebAssembly module
    settings    Displays available Cranelift settings for a target
    wast        Runs a WebAssembly test script file

If a subcommand is not provided, the `run` subcommand will be used.

Usage examples:

Running a WebAssembly module with a start function:

  wasmtime example.wasm

Passing command line arguments to a WebAssembly module:

  wasmtime example.wasm arg1 arg2 arg3

Invoking a specific function (e.g. `add`) in a WebAssembly module:

  wasmtime example.wasm --invoke add 1 2

Wasmtime GitHub notifications bot (Sep 10 2021 at 10:42):

tschneidereit commented on issue #3326:

Thank you for the report! The --dir option, as well as many others, is shown when running wasmtime help run. We could consider having an explicit mention of help [subcommand] below the list of subcommands, but I'm not sure how much that'd help.

Another option (which I would be willing to take a shot at if maintainers like the idea) would be
to use a CLI crate like clap to parse command line arguments and automatically be able to
generate accurate help text from the available options

We're using structopt for that already. The reason that's slightly less obvious is because all of the interesting bits are inside the various commands.

Wasmtime GitHub notifications bot (Sep 10 2021 at 10:46):

bjorn3 commented on issue #3326:

is shown when running wasmtime help run.

It is also shown when running wasmtime run --help.

Wasmtime GitHub notifications bot (Sep 12 2021 at 20:56):

andrewdavidmackenzie commented on issue #3326:

Fair enough! I used "wasmtime help", "wasmtime --help", "wasm run" etc and just didn't hit the required combination.
Thanks for reply.

Wasmtime GitHub notifications bot (Sep 12 2021 at 20:56):

andrewdavidmackenzie closed issue #3326:

Thanks for filing a feature request! Please fill out the TODOs below.

Feature

Have all available command line options show in the wasmtime CLI help text

Benefit

People will be able to discover the up-to-date list of options without going to the docs

Implementation

One option is to just add that (and other options we find missing) to the text in wasmtime.rs

Alternatives

Another option (which I would be willing to take a shot at if maintainers like the idea) would be
to use a CLI crate like clap to parse command line arguments and automatically be able to
generate accurate help text from the available options

Last updated: Dec 23 2024 at 13:07 UTC