cli: work on basic cli and serde error hanlding

Cargo.lock

@@ -56,6 +56,27 @@ dependencies = [
  "windows-sys",
 ]
 
+[[package]]
+name = "app"
+version = "0.1.0"
+dependencies = [
+ "ariadne",
+ "clap",
+ "ron",
+ "serde",
+ "serde_json",
+]
+
+[[package]]
+name = "ariadne"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dd002a6223f12c7a95cdd4b1cb3a0149d22d37f7a9ecdb2cb691a071fe236c29"
+dependencies = [
+ "unicode-width",
+ "yansi",
+]
+
 [[package]]
 name = "autocfg"
 version = "1.1.0"
@@ -308,6 +329,12 @@ dependencies = [
  "tiff",
 ]
 
+[[package]]
+name = "itoa"
+version = "1.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b1a46d1a171d865aa5f83f92695765caa047a9b4cbae2cbf37dbd613a793fd4c"
+
 [[package]]
 name = "jpeg-decoder"
 version = "0.3.0"
@@ -462,6 +489,12 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "ryu"
+version = "1.0.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f98d2aa92eebf49b69786be48e4477826b256916e84a57ff2a4f21923b48eb4c"
+
 [[package]]
 name = "scopeguard"
 version = "1.2.0"
@@ -488,6 +521,17 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "serde_json"
+version = "1.0.109"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cb0652c533506ad7a2e353cce269330d6afd8bdfb6d75e0ace5b35aacbd7b9e9"
+dependencies = [
+ "itoa",
+ "ryu",
+ "serde",
+]
+
 [[package]]
 name = "simd-adler32"
 version = "0.3.7"
@@ -543,6 +587,12 @@ version = "1.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
 
+[[package]]
+name = "unicode-width"
+version = "0.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e51733f11c9c4f72aa0c160008246859e340b00807569a0da0e7a1079b27ba85"
+
 [[package]]
 name = "utf8parse"
 version = "0.2.1"
@@ -621,6 +671,12 @@ version = "0.52.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
 
+[[package]]
+name = "yansi"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09041cd90cf85f7f8b2df60c646f853b7f535ce68f85244eb6731cf89fa498ec"
+
 [[package]]
 name = "zune-inflate"
 version = "0.2.54"

Cargo.toml

@@ -1,5 +1,5 @@
 [workspace]
-members = [ 
+members = [ "crates/app", 
   "crates/executor", 
   "crates/pl-cli", 
   "crates/rpl"
@@ -8,6 +8,9 @@ resolver = "2"
 
 [workspace.dependencies]
 clap = { version = "4", features = [ "derive" ] }
+serde = { version = "1.0", features = [ "derive" ] }
+ron = "0.8"
+serde_json = "1.0"
 
 [lints.rust]
 unsafe_code = "deny"

crates/app/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+name = "app"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+clap = { workspace = true, features = [ "derive" ] }
+serde = { workspace = true, features = [ "derive" ] }
+ron = { workspace = true }
+serde_json = { workspace = true } 
+ariadne = "0.4"

crates/app/src/main.rs

@@ -0,0 +1,73 @@
+use crate::{config::Configs, error_reporting::report_serde_json_err};
+
+mod cli {
+    use clap::{Parser, Subcommand};
+
+    #[derive(Parser)]
+    struct Args {
+        #[command(subcommand)]
+        command: Command,
+    }
+
+    #[derive(Clone, Subcommand)]
+    enum Command {}
+}
+
+mod config {
+    use serde::{Deserialize, Serialize};
+
+    #[derive(Debug, Serialize, Deserialize)]
+    pub struct Configs<'a> {
+        example_value: i32,
+        example_string: &'a str,
+    }
+
+    impl Configs<'_> {
+        pub fn read_json(config_text: &str) -> serde_json::Result<Configs<'_>> {
+            serde_json::from_str(config_text)
+        }
+    }
+}
+
+mod error_reporting {
+    use std::{ops::Range, process};
+
+    use ariadne::{Report, Source};
+
+    pub fn report_serde_json_err(src: &str, err: serde_json::Error) -> ! {
+        use ariadne::{Color, ColorGenerator, Fmt, Label, Report, ReportKind, Source};
+        let offset = try_reconstruct_loc(src, err.line(), err.column());
+
+        Report::build(ariadne::ReportKind::Error, "test", offset)
+            .with_label(Label::new(("test", offset..offset)))
+            .with_message(err.to_string())
+            .finish()
+            .print(("test", Source::from(src)))
+            .unwrap();
+        process::exit(1);
+    }
+    fn try_reconstruct_loc(src: &str, line_nr: usize, col_nr: usize) -> usize {
+        let (line_nr, col_nr) = (line_nr - 1, col_nr - 1);
+
+        src.lines().enumerate().fold(0, |acc, (i, line)| {
+            if i < line_nr {
+                acc + line.len()
+            } else if i == line_nr {
+                acc + col_nr
+            } else {
+                acc
+            }
+        })
+    }
+}
+
+fn main() {
+    const TEST_JSON_CONFIG: &str = "{ \"example_value\": 42, \"example_string\": \"meow\" }";
+    const TEST_JSON_CONFIG_BROKEN: &str = "{ 
+    \"example_value\": \"42\", 
+    \"example_string\": \"meow\" 
+}";
+
+    dbg!(Configs::read_json(TEST_JSON_CONFIG_BROKEN)
+        .map_err(|e| report_serde_json_err(TEST_JSON_CONFIG_BROKEN, e)));
+}

crates/rpl/Cargo.toml

@@ -6,5 +6,5 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-serde = { version = "1.0.193", features = [ "derive" ] }
-ron = "0.8"
+serde = { workspace = true, features = [ "derive" ] }
+ron = { workspace = true }