1 files changed, 39 insertions, 0 deletions
diff --git a/crates/driver/src/pin.rs b/crates/driver/src/pin.rs
new file mode 100644
index 0000000..26e445c
--- /dev/null
+++ b/crates/driver/src/pin.rs
@@ -0,0 +1,39 @@
+use std::{collections::HashMap, fs::File, path::Path};
+
+use serde::{Deserialize, Serialize};
+
+use common::{error::*, string_hash::*};
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+pub struct Args {
+	pub host: Option<String>,
+	pub target: Option<String>,
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+pub struct Provides {
+	pub recipe: String,
+	pub task: String,
+	pub output: Vec<String>,
+	pub args: Args,
+}
+
+#[derive(Clone, Debug, Deserialize, Serialize)]
+#[serde(rename_all = "kebab-case")]
+pub struct Pin {
+	pub hash: Option<ArchiveHash>,
+	#[serde(default)]
+	pub provides: Vec<Provides>,
+	#[serde(default)]
+	pub is_rootfs: bool,
+}
+
+pub type Pins = HashMap<String, Pin>;
+
+pub fn read_pins<P: AsRef<Path>>(path: P) -> Result<Pins> {
+	let f = File::open(path)?;
+	let pins: Pins = serde_yaml::from_reader(f)
+		.map_err(Error::new)
+		.context("YAML error")?;
+	Ok(pins)
+}