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use serde::{Deserialize, Serialize};
use sha2::Sha256;
use std::fmt::Display;
use crate::util::cjson;
#[derive(Clone, Copy, PartialEq, Eq, Hash)]
pub struct StringHash(pub [u8; 32]);
impl Display for StringHash {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.write_str(&hex::encode(self.0))
}
}
impl std::fmt::Debug for StringHash {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "\"{}\"", self)
}
}
impl Serialize for StringHash {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: serde::Serializer,
{
hex::serialize(self.0, serializer)
}
}
impl<'de> Deserialize<'de> for StringHash {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: serde::Deserializer<'de>,
{
Ok(StringHash(hex::deserialize(deserializer)?))
}
}
macro_rules! stringhash_newtype {
($id:ident) => {
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, Deserialize, Serialize)]
pub struct $id(pub StringHash);
impl Display for $id {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
self.0.fmt(f)
}
}
};
}
pub type InputHasher = Sha256;
stringhash_newtype!(InputHash);
pub type DependencyHasher = Sha256;
stringhash_newtype!(DependencyHash);
pub type ArchiveHasher = Sha256;
stringhash_newtype!(ArchiveHash);
#[derive(Clone, Debug, Deserialize, Serialize, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct TaskID(pub String);
impl Display for TaskID {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
self.0.fmt(f)
}
}
#[derive(Clone, Debug, Deserialize, Serialize, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct TaskArgs {}
#[derive(Clone, Debug, Deserialize, Serialize)]
#[serde(rename_all = "snake_case")]
pub enum Dependency {
Fetch { name: String, sha256: StringHash },
BuildTask { output: ArchiveHash },
TargetTask { output: ArchiveHash },
}
impl Dependency {
pub fn dependency_hash(&self) -> DependencyHash {
DependencyHash(StringHash(
cjson::digest::<DependencyHasher, _>(self).unwrap().into(),
))
}
}
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