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use std::collections::HashMap;
use std::{path::Path, io::Read, fs::File};
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct HostManifest {
pub actors: Vec<String>,
pub capabilities: Vec<String>,
pub config: Vec<ConfigEntry>,
}
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ConfigEntry {
pub actor: String,
pub capability: String,
pub values: HashMap<String, String>,
}
impl HostManifest {
pub fn from_yaml(path: impl AsRef<Path>) -> ::std::result::Result<HostManifest, Box<dyn std::error::Error>> {
let mut buf = Vec::new();
let mut file = File::open(path)?;
file.read_to_end(&mut buf)?;
match serde_yaml::from_slice::<HostManifest>(&buf) {
Ok(m) => Ok(m),
Err(e) => Err(format!("Failed to deserialize yaml: {} ", e).into())
}
}
pub fn from_json(path: impl AsRef<Path>) -> ::std::result::Result<HostManifest, Box<dyn std::error::Error>> {
let mut buf = Vec::new();
let mut file = File::open(path)?;
file.read_to_end(&mut buf)?;
match serde_json::from_slice::<HostManifest>(&buf) {
Ok(m) => Ok(m),
Err(_) => Err("Failed to deserialize json".into())
}
}
}
#[cfg(test)]
mod test {
use crate::manifest::ConfigEntry;
use std::collections::HashMap;
#[test]
fn round_trip() {
let manifest = super::HostManifest{
actors: vec!["a".to_string(), "b".to_string(), "c".to_string()],
capabilities: vec!["wascc:one".to_string(), "wascc:two".to_string()],
config: vec![
ConfigEntry{
actor: "a".to_string(),
capability: "wascc:one".to_string(),
values: gen_values(),
}
],
};
let yaml = serde_yaml::to_string(&manifest).unwrap();
assert_eq!(yaml, "---\nactors:\n - a\n - b\n - c\ncapabilities:\n - \"wascc:one\"\n - \"wascc:two\"\nconfig:\n - actor: a\n capability: \"wascc:one\"\n values:\n ROOT: /tmp");
}
fn gen_values() -> HashMap<String, String> {
let mut hm = HashMap::new();
hm.insert("ROOT".to_string(), "/tmp".to_string());
hm
}
}