filewatching.jl

			
			
			
			
			struct
			 

	
			FileLoader
			
			
    
			
			path
			::
			String
			
    
			
			id
			::
			String
			
    
			
			load
			::
			Any
			

			end
			

			

			
			function
			 
			

	
			makefilewatcher
			(
			
			ch
			::
			Channel
			,
			 
			
			loaders
			::
			
			Vector
			{

	
			FileLoader
			}
			,
			
                         
			
			
			dirs
			::
			
			Vector
			{
			String
			}
			 
			=
			 
			
			[
			]
			
			;
			 
			
			filterfn
			 
			=
			 
			
			Returns
			(
			true
			)
			)
			
			
    
			# TODO: watch `dirs` for any added files
			
    
			
			pathtoloader
			 
			=
			 
			
			
			Dict
			{
			String
			,
			 

	
			FileLoader
			}
			(
			
			
			
			loader
			.
			
			path
			 
			=>
			 
			loader
			 
			for
			
			 
			loader
			 
			in
			 
			loaders
			)
			
    
			
			watcher
			 
			=
			 
			
			
			
			LiveServer
			.
			
			SimpleWatcher
			(
			)
			 
			do
			
			 
			path
			
			
        
			
			try
			
			
            
			
			@
			info
			 
			
			"
			Source file 
			$
			path
			 was updated
			"
			
            
			
			loader
			 
			=
			 
			
			pathtoloader
			[
			path
			]
			
            
			
			put!
			(
			ch
			,
			 
			

	
			DocUpdated
			(
			
			loader
			.
			
			id
			,
			 
			
			
			loader
			.
			
			load
			(
			)
			)
			)
			
        
			catch
			 
			e
			
			
            
			
			loader
			 
			=
			 
			
			pathtoloader
			[
			path
			]
			
            
			
			@
			error
			 
			
			"
			Error while processing file update for \"
			$
			path
			\" (document ID \"
			$
			(
			
			loader
			.
			
			id
			)
			\"
			"
			
			 
			e
			=
			e
			
        
			
			
			end
			
    
			end
			
    
			
			for
			
			 
			loader
			 
			in
			 
			loaders
			
			
        
			
			
			LiveServer
			.
			
			watch_file!
			(
			watcher
			,
			 
			
			loader
			.
			
			path
			)
			
    
			end
			
    
			
			return
			 
			watcher
			

			end