5fe06f7345
* Update to clap 3.0 This commit migrates all CLI commands internally used in this project from structopt/clap2 to clap 3. The intent here is to ensure that we're using maintained versions of the dependencies as structopt and clap 2 are less maintained nowadays. Most transitions were pretty straightforward and mostly dealing with structopt/clap3 differences. * Fix a number of `cargo deny` errors This commit fixes a few errors around duplicate dependencies which arose from the prior update to clap3. This also uses a new feature in `deny.toml`, `skip-tree`, which allows having a bit more targeted ignores for skips of duplicate version checks. This showed a few more locations in Wasmtime itself where we could update some dependencies.
97 lines
3.0 KiB
Rust
97 lines
3.0 KiB
Rust
//! The module that implements the `wasmtime settings` command.
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use anyhow::{anyhow, Result};
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use clap::Parser;
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use std::collections::BTreeMap;
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use std::str::FromStr;
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use wasmtime_environ::{FlagValue, Setting, SettingKind};
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/// Displays available Cranelift settings for a target.
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#[derive(Parser)]
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#[clap(name = "run")]
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pub struct SettingsCommand {
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/// The target triple to get the settings for; defaults to the host triple.
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#[clap(long, value_name = "TARGET")]
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target: Option<String>,
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}
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impl SettingsCommand {
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/// Executes the command.
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pub fn execute(self) -> Result<()> {
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let mut builder = wasmtime_cranelift::builder();
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if let Some(target) = &self.target {
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let target = target_lexicon::Triple::from_str(target).map_err(|e| anyhow!(e))?;
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builder.target(target)?;
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}
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let mut enums = (Vec::new(), 0, "Enum settings:");
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let mut nums = (Vec::new(), 0, "Numerical settings:");
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let mut bools = (Vec::new(), 0, "Boolean settings:");
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let mut presets = (Vec::new(), 0, "Presets:");
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for setting in builder.settings() {
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let (collection, max, _) = match setting.kind {
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SettingKind::Enum => &mut enums,
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SettingKind::Num => &mut nums,
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SettingKind::Bool => &mut bools,
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SettingKind::Preset => &mut presets,
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};
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if setting.name.len() > *max {
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*max = setting.name.len();
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}
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collection.push(setting);
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}
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if enums.0.is_empty() && nums.0.is_empty() && bools.0.is_empty() && presets.0.is_empty() {
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println!("Target '{}' has no settings.", builder.triple());
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return Ok(());
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}
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println!("Cranelift settings for target '{}':", builder.triple());
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for (collection, max, header) in &mut [enums, nums, bools, presets] {
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if collection.is_empty() {
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continue;
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}
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collection.sort_by_key(|k| k.name);
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println!();
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Self::print_settings(header, collection, *max);
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}
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if self.target.is_none() {
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let compiler = builder.build()?;
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println!();
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println!("Settings inferred for the current host:");
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let values = compiler.isa_flags().into_iter().collect::<BTreeMap<_, _>>();
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for (name, value) in values {
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if let FlagValue::Bool(true) = value {
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println!(" {}", name);
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}
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}
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}
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Ok(())
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}
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fn print_settings(header: &str, settings: &[Setting], width: usize) {
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println!("{}", header);
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for setting in settings {
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println!(
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" {:width$} {}{}",
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setting.name,
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setting.description,
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setting
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.values
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.map(|v| format!(" Supported values: {}.", v.join(", ")))
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.unwrap_or("".to_string()),
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width = width + 2
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);
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}
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}
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}
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