generate launch.json for vscode debug (#18)

Cargo.toml

@@ -13,4 +13,5 @@ clap = { version = "4.4.11", features = ["derive"] }
 indicatif = "0.17.7"
 open = "5.0.1"
 probe-rs = "0.24.0"
+serde_json = "1.0.122"
 termimad = "0.29.1"

src/cli/init_args.rs

@@ -18,4 +18,11 @@ pub struct InitArgs {
 
     #[arg(long, help = "Configure for use with a Softdevice (NRF only).")]
     pub softdevice: Option<Softdevice>,
+
+    #[arg(
+        long,
+        help = "Generate config files for vscode.",
+        default_value_t = false
+    )]
+    pub vscode: bool,
 }

src/init.rs

@@ -17,6 +17,8 @@ use std::{
     time::Duration,
 };
 
+use serde_json::Value;
+
 pub struct Init {
     pb: ProgressBar,
 }
@@ -53,6 +55,9 @@ impl Init {
         self.create_project(&args.name)?;
 
         self.init_config(&chip, &probe_target_name)?;
+        if args.vscode {
+            self.init_debug_config(&chip, &probe_target_name, &args.name)?;
+        }
         self.init_toolchain(&chip)?;
         if !matches!(&chip.family, Family::ESP(_)) {
             self.init_embed(&probe_target_name)?;
@@ -103,6 +108,26 @@ impl Init {
         }
     }
 
+    fn init_debug_config(&self, chip: &Chip, name: &str, project_name: &str) -> Result<(), Error> {
+        fs::create_dir_all(".vscode").map_err(|_| Error::CreateFolder(".vscode".into()))?;
+
+        let contents = include_str!("templates/launch.json.template").to_string();
+        let mut contents =
+            serde_json::from_str::<Value>(&contents).expect("failed to convert to json");
+
+        // update chip name
+        contents["configurations"][0]["chip"] = Value::String(name.to_string());
+
+        // update target binary name
+        let target = format!("target/{}/debug/{}", chip.target, project_name);
+        contents["configurations"][0]["coreConfigs"][0]["programBinary"] = Value::String(target);
+
+        self.create_file(
+            ".vscode/launch.json",
+            serde_json::to_string_pretty(&contents).unwrap().as_str(),
+        )
+    }
+
     fn init_config(&self, chip: &Chip, name: &str) -> Result<(), Error> {
         fs::create_dir_all(".cargo").map_err(|_| Error::CreateFolder(".cargo".into()))?;
 

src/templates/launch.json.template

@@ -0,0 +1,44 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "probe-rs-debug",
+      "request": "launch",
+      "name": "probe_rs",
+      "cwd": "${workspaceFolder}",
+      "runtimeExecutable": "probe-rs",
+      "runtimeArgs": ["dap-server"],
+      "chip": "chip_name",
+      "flashingConfig": {
+        "flashingEnabled": true,
+        "haltAfterReset": false,
+        "formatOptions": {
+        }
+      },
+      "coreConfigs": [
+        {
+          "coreIndex": 0,
+          "rttEnabled": true,
+          "rttChannelFormats": [
+            {
+              "channelNumber": 0,
+              "dataFormat": "String",
+              "showTimestamps": true
+            },
+            {
+              "channelNumber": 1,
+              "dataFormat": "BinaryLE"
+            }
+          ],
+          "programBinary": "path_to_your_binary",
+          "svdFile": "" 
+        }
+      ],
+      "env": {
+        "RUST_LOG": "info"
+      },
+      "consoleLogLevel": "Console"
+    }
+  ]
+}
+