fix: Better error message when vita-parse-core is not found (#19)

Author: nikarh

src/check.rs

@@ -1,18 +1,17 @@
 use std::{
     collections::HashMap,
     env,
-    process::{self, Command, Stdio},
+    process::{Command, Stdio},
 };
 
-use anyhow::{anyhow, Context};
-use log::error;
+use anyhow::{anyhow, bail, Context};
 use rustc_version::Channel;
 
 pub fn rust_version() -> anyhow::Result<()> {
     let rust_version = rustc_version::version_meta()?;
 
     if rust_version.channel > Channel::Nightly {
-        error!(
+        bail!(
             "cargo-vita requires a nightly rustc version. Do one of the following:\n \
             - Run `rustup override set nightly` to use nightly in the current directory\n \
             - Run cargo with +nightly flag.\n \
@@ -21,7 +20,6 @@ pub fn rust_version() -> anyhow::Result<()> {
               channel = \"nightly\"\n   \
               components = [ \"rust-src\" ]"
         );
-        process::exit(1);
     }
 
     Ok(())

src/commands/coredump.rs

@@ -115,7 +115,19 @@ impl Executor for Coredump {
 
                     info!("{}: {command:?}", "Parsing coredump".blue());
 
-                    if !command.status()?.success() {
+                    let status = command.status();
+
+                    if let Err(err) = &status {
+                        if err.kind() == io::ErrorKind::NotFound {
+                            bail!(
+                                "`vita-parse-core` not found. \
+                                Ensure this tool is installed from https://github.com/xyzz/vita-parse-core \
+                                and is available in your PATH."
+                            );
+                        }
+                    }
+
+                    if !status?.success() {
                         bail!("vita-parse-core failed");
                     }
                 } else {