nushell/crates/nu-cli/src/commands/autoenv_trust.rs
2020-06-21 19:40:32 +02:00

75 lines
2.1 KiB
Rust

use crate::commands::WholeStreamCommand;
use crate::prelude::*;
use nu_errors::ShellError;
use nu_protocol::{ReturnSuccess, Signature, UntaggedValue};
use serde::Deserialize;
use serde::Serialize;
use std::hash::{Hash, Hasher};
use std::io::{Read, Write};
use std::{collections::hash_map::DefaultHasher, fs, path::PathBuf};
pub struct AutoenvTrust;
#[derive(Deserialize, Serialize)]
struct Allowed {
pub dirs: IndexMap<String, String>,
}
#[async_trait]
impl WholeStreamCommand for AutoenvTrust {
fn name(&self) -> &str {
"autoenv trust"
}
fn signature(&self) -> Signature {
Signature::build("autoenv trust")
}
fn usage(&self) -> &str {
"Trust a .nu-env file in the current directory"
}
async fn run(
&self,
args: CommandArgs,
registry: &CommandRegistry,
) -> Result<OutputStream, ShellError> {
let current_dir = std::env::current_dir()?;
let content = std::fs::read_to_string(current_dir.join(".nu-env"))?;
let mut hasher = DefaultHasher::new();
content.hash(&mut hasher);
let config_path = config::default_path_for(&Some(PathBuf::from("nu-env.toml")))?;
let mut file = std::fs::OpenOptions::new()
.read(true)
.create(true)
.write(true)
.open(config_path.clone())
.unwrap();
let mut doc = String::new();
file.read_to_string(&mut doc)?;
let mut allowed: Allowed = toml::from_str(doc.as_str()).unwrap_or_else(|_| Allowed {
dirs: IndexMap::new(),
});
allowed.dirs.insert(
current_dir.to_string_lossy().to_string(),
hasher.finish().to_string(),
);
fs::write(config_path, toml::to_string(&allowed).unwrap())
.expect("Couldn't write to toml file");
let tag = args.call_info.name_tag.clone();
Ok(OutputStream::one(ReturnSuccess::value(
UntaggedValue::string(".nu-env trusted!").into_value(tag),
)))
}
fn is_binary(&self) -> bool {
false
}
fn examples(&self) -> Vec<Example> {
Vec::new()
}
}