Add utils crates

src/json/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "tribufu-json"
+version = "0.0.5"
+description = "Tribufu Json"
+repository = "https://github.com/tribufu/tribufu-rust"
+authors = ["Tribufu <contact@tribufu.com>"]
+edition = "2021"
+publish = false
+
+[lib]
+name = "tribufu_json"
+crate-type = ["rlib"]
+path = "lib.rs"
+
+[dependencies]
+tribufu-error = { version = "0.0.5", path = "../error" }
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"

src/json/lib.rs

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+// Copyright (c) Tribufu. All Rights Reserved.
+// SPDX-License-Identifier: MIT
+
+use serde::Serialize;
+use serde_json::ser::PrettyFormatter;
+use serde_json::Serializer;
+use tribufu_error::Result;
+
+#[macro_export]
+macro_rules! include_json {
+    ($path:expr) => {
+        $crate::from_str(include_str!($path)).expect("Failed to load JSON")
+    };
+}
+
+pub use serde_json::from_slice;
+pub use serde_json::from_str;
+pub use serde_json::to_string;
+pub use serde_json::to_value;
+pub use serde_json::to_vec_pretty;
+
+pub fn to_string_pretty<T>(value: &T) -> Result<String>
+where
+    T: Serialize,
+{
+    let obj = to_value(value).expect("Failed to serialize JSON");
+    let mut buf = Vec::new();
+    let fmt = PrettyFormatter::with_indent(b"    ");
+    let mut ser = Serializer::with_formatter(&mut buf, fmt);
+    obj.serialize(&mut ser)?;
+    Ok(String::from_utf8(buf)?)
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use serde::{Deserialize, Serialize};
+
+    #[derive(Debug, Serialize, Deserialize)]
+    struct JsonTest {
+        version: String,
+    }
+
+    #[test]
+    fn test_include_json() {
+        let data: JsonTest = include_json!("test.json");
+        assert!(data.version == "0.0.0".to_owned())
+    }
+}

src/json/test.json

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+{
+    "version": "0.0.0"
+}