Add colored output to most tools; Make mkoverlay more tolerant for missing overlay files; Make psxcdgen_ex emit a warning when no license file is specified

src/Tools/mkoverlay/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "mkoverlay"
-version = "1.1.0"
+version = "1.1.1"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

src/Tools/mkoverlay/src/main.rs

@@ -1,6 +1,7 @@
 use clap::Parser;
-use tool_helper::{Error, format_if_error, open_input, open_output};
+use mkoverlay::types::OverlayDesc;
 use std::path::PathBuf;
+use tool_helper::{Error, exit_with_error, format_if_error, open_input, open_output};
 
 #[derive(Parser)]
 #[clap(about = "Creates a linker script and makefile part for the JabyEngine toolchain", long_about = None)]
@@ -12,12 +13,22 @@ struct CommandLine {
     ld_file_output: Option<PathBuf>,
     
     #[clap(value_parser, help="Input JSON for creating the files")]
-    input:          PathBuf
+    input:          Option<PathBuf>
+}
+
+fn parse_input(input: Option<PathBuf>) -> Result<OverlayDesc, Error> {
+    if let Some(input) = input {
+        let input = format_if_error!(open_input(Some(input)), "Opening input file failed with: {error_text}")?;
+        format_if_error!(mkoverlay::types::json_reader::read_config(input), "Parsing JSON file failed with: {error_text}")    
+    }
+    
+    else {
+        Ok(OverlayDesc::new())
+    }
 }
 
 fn run_main(cmd_line: CommandLine) -> Result<(), Error> {
-    let     input     = format_if_error!(open_input(Some(cmd_line.input)),                  "Opening input file failed with: {error_text}")?;
-    let     input     = format_if_error!(mkoverlay::types::json_reader::read_config(input), "Parsing JSON file failed with: {error_text}")?;
+    let     input     = parse_input(cmd_line.input)?;
     let mut mk_output = format_if_error!(open_output(cmd_line.mk_file_output),              "Opening file for writing makefile failed with: {error_text}")?;
     let mut ld_output = format_if_error!(open_output(cmd_line.ld_file_output),              "Opening file for writing linkerfile failed with: {error_text}")?;
 
@@ -30,11 +41,11 @@ fn main() {
         Ok(cmd_line) => {
             match run_main(cmd_line) {
                 Ok(_)      => (),
-                Err(error) => eprintln!("{}", error)
+                Err(error) => exit_with_error(error)
             }
         },
         Err(error) => {
-            eprintln!("{}", error);
+            exit_with_error(Error::from_error(error));
         }
     }
 }