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use clap::{Parser, ValueEnum};
use num_traits::NumCast;
use serde::{ Serialize, Deserialize };
use env_file_reader::read_str;
use std::{env, option::Option, fs::read_to_string, collections::HashMap};
pub use input_macros::foreach_input_field;
static DEFAULT_PUBLIC_INPUT: &str = include_str!(concat!(env!("INPUTS_DIR"), "/default_public_input.toml"));
static DEFAULT_ENV: &str = include_str!(concat!(env!("INPUTS_DIR"), "/default.env"));
#[derive(Parser, Debug)]
#[command(version, about, long_about = None)]
struct Cli {
/// What the ZKVM is going to do
run_type: RunType,
public_input: Option<String>,
}
#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, ValueEnum)]
pub enum RunType {
Execute,
Prove,
Verify,
}
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct RunWith<T> {
pub run_type: RunType,
pub input: T,
pub default_env: HashMap<String, String>,
}
impl<T> RunWith<T> {
pub fn env_then_or<U>(&self, variable_name: &str, then_apply: fn(String) -> Option<U>, else_const: U) -> U {
env::var(variable_name)
.ok()
.and_then(then_apply)
.unwrap_or(self
.default_env
.get(variable_name)
.and_then(|x| then_apply(x.clone()))
.unwrap_or(else_const))
}
pub fn env_or(&self, variable_name: &str, else_const: &str) -> String {
self.env_then_or(variable_name, |x| Some(x), else_const.to_string())
}
}
input_macros::generate_input_struct!();
pub fn read_args() -> RunWith<Input> {
let cli = Cli::parse();
let contents: String = if cli.public_input.is_some() {
read_to_string(cli.public_input.unwrap()).unwrap()
} else {
DEFAULT_PUBLIC_INPUT.to_string()
};
let input: Input = toml::from_str(&contents).unwrap();
let default_env = read_str(DEFAULT_ENV).unwrap();
RunWith {
run_type: cli.run_type,
input,
default_env,
}
}
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