refactor(tvix/derivation): refactor the derivation serialization r/5564

This refactors the code to serialize a derivation. The original code
has beed moved to seperate crates for better code structure.

Change-Id: I3b1a6b134428fcbc9930c330bced8ec3610cfb4c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7733
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>

1 files changed, 34 insertions, 0 deletions

diff --git a/tvix/derivation/src/derivation.rs b/tvix/derivation/src/derivation.rs
new file mode 100644
index 000000000000..142fa3c9f309
--- /dev/null
+++ b/tvix/derivation/src/derivation.rs
@@ -0,0 +1,34 @@
+use crate::output::Output;
+use crate::write;
+use serde::{Deserialize, Serialize};
+use std::{collections::BTreeMap, fmt, fmt::Write};
+
+#[derive(Serialize, Deserialize)]
+pub struct Derivation {
+    outputs: BTreeMap<String, Output>,
+    input_sources: Vec<String>,
+    input_derivations: BTreeMap<String, Vec<String>>,
+    platform: String,
+    builder: String,
+    arguments: Vec<String>,
+    environment: BTreeMap<String, String>,
+}
+
+impl Derivation {
+    pub fn serialize(self: Self, writer: &mut impl Write) -> Result<(), fmt::Error> {
+        writer.write_str(write::DERIVATION_PREFIX)?;
+        writer.write_char(write::PAREN_OPEN)?;
+
+        write::write_outputs(writer, self.outputs)?;
+        write::write_input_derivations(writer, self.input_derivations)?;
+        write::write_input_sources(writer, self.input_sources)?;
+        write::write_platfrom(writer, &self.platform)?;
+        write::write_builder(writer, &self.builder)?;
+        write::write_arguments(writer, self.arguments)?;
+        write::write_enviroment(writer, self.environment)?;
+
+        writer.write_char(write::PAREN_CLOSE)?;
+
+        Ok(())
+    }
+}