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Revision 8981

Added by Aaron Marcuse-Kubitza over 11 years ago

lib/util.sh: exceptions: added log_e (), which prints a "command exited with error" message (like make) when applicable

View differences:

util.sh
40 40 
function save_e () { "$@"; e=$?; rethrow; } # rethrow because e= clears $?
41 41 
alias save_e='declare e; save_e ' # last space alias-expands next word
42 42 

  		




  
  43
  
    
function log_e () # usage: log_e cmd... [ || use $e (or $?) ]


  		




  
  44
  
    
{


  		




  
  45
  
    
	if ! save_e "$@"; then


  		




  
  46
  
    
		echo "! $*" >&2


  		




  
  47
  
    
		echo "! command exited with error $e" >&2


  		




  
  48
  
    
		rethrow


  		




  
  49
  
    
	fi


  		




  
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}


  		




  
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alias log_e='log_e ' # last space alias-expands next word


  		




  
  52
  
    

  		




  43
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# usage: try cmd...; ignore status; if catch status; then ...; fi; end_try


  		




  44
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  45
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function try () { "save_e" "$@" || true; }


  		












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