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use std::path::PathBuf;
use clap::{Args, Parser, Subcommand};
use clap::error::ErrorKind;
use ozone::launcher::{Instance, InstanceVersion, JavaRuntimeSetting, Resolution};
#[derive(Args, Debug)]
pub struct InstanceSelectArgs {
/// The name of the instance to select.
#[arg(index = 1)]
pub instance: String
}
fn parse_resolution_argument(val: &str) -> Result<Option<Resolution>, clap::Error> {
match val.to_ascii_lowercase().as_str() {
"default" => Ok(None),
s => {
let Some(idx) = s.find('x') else {
return Err(clap::Error::raw(ErrorKind::InvalidValue, "malformed resolution argument (expected 'x')"));
};
let width: u32 = s[..idx].parse().map_err(|e| clap::Error::raw(ErrorKind::InvalidValue, e))?;
let height: u32 = s[idx+1..].parse().map_err(|e| clap::Error::raw(ErrorKind::InvalidValue, e))?;
if width == 0 || height == 0 {
return Err(clap::Error::raw(ErrorKind::InvalidValue, "malformed resolution argument (width and height must be positive)"));
}
Ok(Some(Resolution { width, height }))
}
}
}
#[derive(Args, Debug)]
pub struct InstanceSettingsArgs {
/// Specify a version of the game which this profile should launch.
#[arg(long, short = 'v', conflicts_with_all = ["latest_release", "latest_snapshot"])]
pub version: Option<String>,
/// If set, this profile should always use the latest release (default).
///
/// **Note**: Whenever a new version of Minecraft is released, this profile will
/// automatically switch to that version. This could cause unintended upgrades of settings and
/// worlds.
#[arg(long, conflicts_with_all = ["version", "latest_snapshot"])]
pub latest_release: bool,
/// If set, this profile should always use the latest snapshot.
///
/// **Note**: Whenever a new version of Minecraft is released, this profile will
/// automatically switch to that version. This could cause unintended upgrades of settings and
/// worlds.
#[arg(long, short = 's', conflicts_with_all = ["version", "latest_release"])]
pub latest_snapshot: bool,
/// Specify the path to the java runtime that this profile should use to run the game.
///
/// By default, the launcher will attempt to download a compatible java runtime before running the game.
#[arg(long, short = 'j', conflicts_with_all = ["jre_component", "jre_default"])]
pub jre_path: Option<PathBuf>,
/// Specify the java runtime component which this profile should download and use when launching
/// the game. If you don't understand what this means, you probably don't need this argument.
#[arg(long, conflicts_with_all = ["jre_path", "jre_default"])]
pub jre_component: Option<String>,
/// If set, configures this profile to automatically determine the java runtime to download and
/// use when launching the game. This is the default behavior.
#[arg(long, conflicts_with_all = ["jre_path", "jre_component"])]
pub jre_default: bool,
/// Specify the resolution of the Minecraft game window. Note that this argument is a suggestion
/// to the game process, and could be ignored or unsupported on some versions.
///
/// Pass the resolution as _width_x_height_ (like `800x600').
///
/// Use the special value _default_ to reset to the default value.
#[arg(long, short = 'r', value_parser = parse_resolution_argument)]
pub resolution: Option<Option<Resolution>>,
}
impl InstanceSettingsArgs {
pub fn apply_to(&self, inst: &mut Instance) {
if let Some(ref ver) = self.version {
inst.game_version = InstanceVersion::Specific(ver.clone());
} else if self.latest_release {
inst.game_version = InstanceVersion::LatestRelease;
} else if self.latest_snapshot {
inst.game_version = InstanceVersion::LatestSnapshot;
}
if let Some(ref path) = self.jre_path {
inst.java_runtime = Some(JavaRuntimeSetting::Path(path.clone()));
} else if let Some(ref comp) = self.jre_component {
inst.java_runtime = Some(JavaRuntimeSetting::Component(comp.clone()));
} else if self.jre_default {
inst.java_runtime = None;
}
if let Some(res) = self.resolution {
inst.resolution = res;
}
}
}
#[derive(Args, Debug)]
pub struct InstanceCreateArgs {
/// The name of the new instance. Must not be an empty string.
#[arg(index = 1)]
pub name: String,
/// If set, clones settings from the selected instance.
#[arg(long, short = 'c')]
pub clone: bool,
/// If set, don't select the newly created instance.
#[arg(long)]
pub no_select: bool,
#[command(flatten)]
pub settings: InstanceSettingsArgs
}
#[derive(Subcommand, Debug)]
pub enum InstanceCommand {
Select(InstanceSelectArgs),
Create(InstanceCreateArgs),
Set(InstanceSettingsArgs),
Delete,
List,
Info
}
#[derive(Args, Debug)]
pub struct InstanceArgs {
#[command(subcommand)]
subcmd: Option<InstanceCommand>
}
impl InstanceArgs {
pub fn command(&self) -> &InstanceCommand {
self.subcmd.as_ref().unwrap_or(&InstanceCommand::List)
}
}
#[derive(Subcommand, Debug)]
pub enum RootCommand {
Instance(InstanceArgs),
Launch
}
#[derive(Parser, Debug)]
#[clap(version)]
pub struct Cli {
/// Run the launcher in offline mode. The launcher will not attempt to make any requests using
/// the network. The launcher _will_ verify the integrity of files required to launch the game,
/// and refuse to launch the game with an error if it must download a file.
#[arg(long, global = true)]
pub offline: bool,
/// Directory which the launcher will perform its work in. Defaults to an application-specific
/// directory based on your OS.
#[arg(long, global = true, value_hint = clap::ValueHint::DirPath)]
pub home: Option<PathBuf>,
#[command(subcommand)]
pub subcmd: RootCommand
}
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