mason/examples/build.rs

#[macro_use]
extern crate scribe;

extern crate mason;



use std::env;
use std::path::PathBuf;

use mason::Processor;



pub const RESOURCES_DIR: &'static str = "resources";
pub const MANIFEST_FILENAME: &'static str = "resources.msnr";



pub fn main()
{
   let task_count: u64;
   let output_dir: PathBuf;
   let mut resources_dir: PathBuf;
   let mut processor: Processor;

   // Get the cargo manifest directory and then append the
   // resource directory name to it.
   match option_env!("CARGO_MANIFEST_DIR")
   {
      Some(dir) =>
      {
         resources_dir = PathBuf::from(dir);
      }

      None =>
      {
         resources_dir = PathBuf::new();
      }
   }
   resources_dir.push(RESOURCES_DIR);

   // Get the output directory for the build.
   match option_env!("OUT_DIR")
   {
      Some(dir) =>
      {
         output_dir = PathBuf::from(dir);
      }

      None =>
      {
         // Try to just get the current directory.
         match env::current_dir()
         {
            Ok(dir) =>
            {
               output_dir = PathBuf::from(dir);
            }

            Err(error) =>
            {
               // Then just default to "".
               warn!("{}", error);
               output_dir = PathBuf::new();
            }
         }
      }
   }

   // Get how many compile tasks should be run at one time.
   match option_env!("NUM_JOBS")
   {
      Some(count) =>
      {
         match count.parse::<u64>()
         {
            Ok(val) =>
            {
               task_count = val;
            }

            Err(error) =>
            {
               error!("{}", error);
            }
         }
      }

      None =>
      {
         task_count = 1u64;
      }
   }

   processor = Processor::new();
   processor.set_resources_dir(resources_dir.as_path());
   processor.set_output_dir(output_dir.as_path());
   processor.set_task_count(task_count);
   processor.process_manifest_file();
}