Home > utils > confirm_overwrite_file.m

confirm_overwrite_file

PURPOSE ^

SYNOPSIS ^

function confirmation = confirm_overwrite_file(filepath)

DESCRIPTION ^

 confirmation = confirm_overwrite_file(filepath)

 confirmation is 1 or 0, indicating whether or not filepath exists after
 this function is run. (in other words, if the file was deleted by
 this function or the file 

 checks to see if a file designated by filepath exists. If it does
 exist, prompts the user whether he/she want's to overwrite the
 file. If the user answers 'y' the file is deleted. This utility
 is useful when a function makes repeated 'print' or fprintf
 calls, appending to a plot or log file and it is desireable to
 delete the plot or log file at the begninning of the
 process. User confirmation ensures that useful plots or logs are
 not simply overwritten,

 12 July 2007, Stefan Tomic

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:

SOURCE CODE ^

0001 function confirmation = confirm_overwrite_file(filepath)
0002 %
0003 % confirmation = confirm_overwrite_file(filepath)
0004 %
0005 % confirmation is 1 or 0, indicating whether or not filepath exists after
0006 % this function is run. (in other words, if the file was deleted by
0007 % this function or the file
0008 %
0009 % checks to see if a file designated by filepath exists. If it does
0010 % exist, prompts the user whether he/she want's to overwrite the
0011 % file. If the user answers 'y' the file is deleted. This utility
0012 % is useful when a function makes repeated 'print' or fprintf
0013 % calls, appending to a plot or log file and it is desireable to
0014 % delete the plot or log file at the begninning of the
0015 % process. User confirmation ensures that useful plots or logs are
0016 % not simply overwritten,
0017 %
0018 % 12 July 2007, Stefan Tomic
0019 
0020 if(exist(filepath,'file'))
0021 
0022  confirmOverwrite = '';
0023   while(~ismember(confirmOverwrite,{'y','n'}))
0024     confirmOverwrite = input(sprintf('File %s exists, overwrite? (y/n): ',filepath),'s');
0025   end
0026   
0027   if(strcmp(confirmOverwrite,'y'))
0028     delete(filepath);
0029     confirmation = 1;
0030   else
0031     confirmation = 0;
0032   end
0033 
0034 else 
0035   confirmation = 1;
0036 end
0037 
0038 
0039 
0040 
0041 
0042 
0043 return

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