feat: profile struct with serialize/deserialize

.gitignore

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+/target

Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "itoa"
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+checksum = "6aeca18b86b413c660b781aa319e4e2648a3e6f9eadc9b47e9038e6fe9f3451b"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1b9ab9c7eadfd8df19006f1cf1a4aed13540ed5cbc047010ece5826e10825488"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "rex2"
+version = "0.1.0"
+dependencies = [
+ "serde",
+ "serde_json",
+]
+
+[[package]]
+name = "ryu"
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+checksum = "2113ab51b87a539ae008b5c6c02dc020ffa39afd2d83cffcb3f4eb2722cebec2"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "serde_json"
+version = "1.0.96"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "057d394a50403bcac12672b2b18fb387ab6d289d957dab67dd201875391e52f1"
+dependencies = [
+ "itoa",
+ "ryu",
+ "serde",
+]
+
+[[package]]
+name = "syn"
+version = "2.0.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32d41677bcbe24c20c52e7c70b0d8db04134c5d1066bf98662e2871ad200ea3e"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "unicode-ident"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b15811caf2415fb889178633e7724bad2509101cde276048e013b9def5e51fa0"

Cargo.toml

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+[package]
+name = "rex2"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+serde = { version = "1.0.163", features = [
+    "derive"
+] }
+serde_json = "1.0.96"

src/main.rs

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+pub mod profile;
+
+fn main() {
+    println!("Hello, world!");
+}

src/profile.rs

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+use serde::{Deserialize, Serialize};
+use std::{
+    fs::{create_dir_all, File},
+    io::{BufReader, BufWriter},
+    path::Path,
+};
+
+#[derive(Serialize, Deserialize)]
+pub struct Profile {
+    monado_path: String,
+    openovr_path: String,
+    libsurvive_path: Option<String>,
+    basalt_path: Option<String>,
+    mercury_path: Option<String>,
+    libsurvive_enabled: bool,
+    basalt_enabled: bool,
+    mercury_enabled: bool,
+}
+
+pub fn load_profile(path: String) -> Result<Profile, serde_json::Error> {
+    let file = File::open(path).unwrap();
+    let reader = BufReader::new(file);
+    serde_json::from_reader(reader)
+}
+
+pub fn dump_profile(profile: Profile, path_s: String) -> () {
+    let path = Path::new(&path_s);
+    match path.parent() {
+        Some(parent) => {
+            if !parent.is_dir() {
+                create_dir_all(parent).expect("Could not create dir")
+            }
+        }
+        None => {}
+    };
+    let file = match path.is_file() {
+        true => File::open(path).expect("Could not open file"),
+        false => File::create(path).expect("Could not create file")
+    };
+    let writer = BufWriter::new(file);
+    serde_json::to_writer_pretty(writer, &profile).expect("Could not write profile")
+}
+
+#[cfg(test)]
+mod tests {
+    use super::{dump_profile, Profile, load_profile};
+
+    #[test]
+    fn profile_can_be_loaded() {
+        let profile = load_profile(String::from("./test/files/profile.json"));
+        match profile {
+            Ok(profile) => {
+                assert_eq!(profile.monado_path, "/home/user/monado");
+                assert_eq!(profile.openovr_path, "/home/user/openovr");
+                assert_eq!(
+                    profile.libsurvive_path.as_deref(),
+                    Some("/home/user/libsurvive")
+                );
+                assert_eq!(profile.mercury_path, None);
+                assert_eq!(profile.basalt_path, None);
+                assert_eq!(profile.libsurvive_enabled, true);
+                assert_eq!(profile.basalt_enabled, false);
+                assert_eq!(profile.mercury_enabled, false);
+            }
+            Err(_) => assert!(false),
+        }
+    }
+
+    #[test]
+    fn profile_can_be_dumped() {
+        let p = Profile {
+            monado_path: String::from("/home/user/monado"),
+            openovr_path: String::from("/home/user/openovr"),
+            libsurvive_path: Some(String::from("/home/user/libsurvive")),
+            basalt_path: None,
+            mercury_path: None,
+            libsurvive_enabled: true,
+            basalt_enabled: false,
+            mercury_enabled: false,
+        };
+        dump_profile(p, String::from("./target/testout/testprofile.json"))
+    }
+}

test/files/profile.json

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+{
+    "monado_path": "/home/user/monado",
+    "openovr_path": "/home/user/openovr",
+    "libsurvive_path": "/home/user/libsurvive",
+    "basalt_path": null,
+    "mercury_path": null,
+    "libsurvive_enabled": true,
+    "basalt_enabled": false,
+    "mercury_enabled": false
+}