minimal config file parsing

modular-recipes/code/recipe/src/lib.rs

@@ -0,0 +1,8 @@
+mod recipe;
+
+pub use crate::recipe::TomlRecipe;
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+}

modular-recipes/code/recipe/src/recipe.rs

@@ -0,0 +1,64 @@
+use serde::{Deserialize, Serialize};
+use std::fs;
+use std::path::Path;
+
+use std::collections::BTreeMap;
+
+#[derive(Hash, PartialEq, Eq, Deserialize, Serialize, Debug)]
+pub struct Input {}
+
+#[derive(Hash, PartialEq, Eq, Deserialize, Serialize, Debug)]
+pub struct Output {}
+
+#[derive(Hash, PartialEq, Eq, Deserialize, Serialize, Debug)]
+pub struct Dependency {}
+
+#[derive(Hash, PartialEq, Eq, Deserialize, Serialize, Debug)]
+pub struct Config {}
+
+// Recipe which can get read out of a toml file
+#[derive(Deserialize, Serialize, Debug)]
+pub struct TomlRecipe {
+    name: String,
+    inputs: BTreeMap<String, Input>,
+    outputs: BTreeMap<String, Output>,
+    dependencies: BTreeMap<String, Dependency>,
+    config: Config,
+}
+
+impl Default for TomlRecipe {
+    fn default() -> Self {
+        Self {
+            name: String::new(),
+            inputs: BTreeMap::new(),
+            outputs: BTreeMap::new(),
+            dependencies: BTreeMap::new(),
+            config: Config {},
+        }
+    }
+}
+
+impl TomlRecipe {
+    pub fn new(config_file: &Path) -> Self {
+        let file: String = fs::read_to_string(&config_file).expect("Could not read input file");
+        let recipe: TomlRecipe = toml::from_str(&file).expect("Could not parse TOML file");
+        recipe
+    }
+    pub fn print(&self) {
+        println!("{} ---------------", self.name);
+        println!(" INPUTS");
+        for (key, _) in &self.inputs {
+            println!(" * {}", key);
+        }
+        println!();
+        println!(" OUTPUTS");
+        for (key, _) in &self.outputs {
+            println!(" * {}", key);
+        }
+        println!();
+        println!(" DEPENDENCIES");
+        for (key, _) in &self.dependencies {
+            println!(" * {}", key);
+        }
+    }
+}