8ebaaf928d
* Remove the `wasmtime wasm2obj` command This commit removes the `wasm2obj` subcommand of the `wasmtime` CLI. This subcommand has a very long history and dates back quite far. While it's existed, however, it's never been documented in terms of the output it's produced. AFAIK it's only ever been used for debugging to see the machine code output of Wasmtime on some modules. With recent changes to the module serialization output the output of `wasmtime compile`, the `*.cwasm` file, is now a native ELF file which can be fed to standard tools like `objdump`. Consequently I dont think there's any remaining need to keep `wasm2obj` around itself, so this commit removes the subcommand. * More code to delete * Try to fix debuginfo tests
76 lines
2.5 KiB
Rust
76 lines
2.5 KiB
Rust
//! The `wasmtime` command line tool.
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//!
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//! Primarily used to run WebAssembly modules.
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//! See `wasmtime --help` for usage.
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use anyhow::Result;
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use structopt::{clap::AppSettings, clap::ErrorKind, StructOpt};
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use wasmtime_cli::commands::{
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CompileCommand, ConfigCommand, RunCommand, SettingsCommand, WastCommand,
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};
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/// Wasmtime WebAssembly Runtime
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#[derive(StructOpt)]
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#[structopt(
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name = "wasmtime",
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version = env!("CARGO_PKG_VERSION"),
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global_settings = &[
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AppSettings::VersionlessSubcommands,
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AppSettings::ColoredHelp
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],
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after_help = "If a subcommand is not provided, the `run` subcommand will be used.\n\
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\n\
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Usage examples:\n\
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\n\
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Running a WebAssembly module with a start function:\n\
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\n \
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wasmtime example.wasm
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\n\
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Passing command line arguments to a WebAssembly module:\n\
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\n \
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wasmtime example.wasm arg1 arg2 arg3\n\
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\n\
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Invoking a specific function (e.g. `add`) in a WebAssembly module:\n\
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\n \
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wasmtime example.wasm --invoke add 1 2\n"
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)]
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enum WasmtimeApp {
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// !!! IMPORTANT: if subcommands are added or removed, update `parse_module` in `src/commands/run.rs`. !!!
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/// Controls Wasmtime configuration settings
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Config(ConfigCommand),
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/// Compiles a WebAssembly module.
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Compile(CompileCommand),
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/// Runs a WebAssembly module
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Run(RunCommand),
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/// Displays available Cranelift settings for a target.
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Settings(SettingsCommand),
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/// Runs a WebAssembly test script file
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Wast(WastCommand),
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}
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impl WasmtimeApp {
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/// Executes the command.
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pub fn execute(self) -> Result<()> {
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match self {
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Self::Config(c) => c.execute(),
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Self::Compile(c) => c.execute(),
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Self::Run(c) => c.execute(),
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Self::Settings(c) => c.execute(),
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Self::Wast(c) => c.execute(),
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}
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}
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}
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fn main() -> Result<()> {
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WasmtimeApp::from_iter_safe(std::env::args())
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.unwrap_or_else(|e| match e.kind {
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ErrorKind::HelpDisplayed
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| ErrorKind::VersionDisplayed
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| ErrorKind::MissingArgumentOrSubcommand => e.exit(),
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_ => WasmtimeApp::Run(
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RunCommand::from_iter_safe(std::env::args()).unwrap_or_else(|_| e.exit()),
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),
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})
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.execute()
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}
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