For text files it is possible to do it like so: `builtins.hashString "sha256" (builtins.readFile /tmp/a)` but that doesn't work for binary files. With builtins.hashFile any kind of file can be conveniently hashed.
		
			
				
	
	
		
			5 lines
		
	
	
	
		
			204 B
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			5 lines
		
	
	
	
		
			204 B
		
	
	
	
		
			Nix
		
	
	
	
	
	
| let
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|   paths = [ ./this-file-is-definitely-not-there-7392097 "/and/neither/is/this/37293620" ];
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| in
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|   builtins.concatLists (map (hash: map (builtins.hashFile hash) paths) ["md5" "sha1" "sha256" "sha512"])
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| 
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