Print a message when diffing huge files (git-p4)

 






 

 


  Review Request #12256
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  Created April 25, 2022 and discarded 

 




















 

  

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  puremourning
 









 
 

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In order to create diffs that work with the perforce server, when
posting from a git-p4 repo, we have to in effect linewise process the
diff output from git diff. For very large files this can take quite a
while and users can be confused as to what is going on.

The solution is to print something to the standard output when diffing a
very large file and update it with a bit of progress every 1000 lines.

 








  


 
 

  
in a git repo with extremely large text files, rbt post. See that the output 'Creating diff for large file...' is printed and a little spinner animation updated every 1000 lines.

 







 









 





  

 


 
 

  



 

  
   


    Summary
    ID

   

  
  

   


    

     

      Print a message when diffing huge files (git-p4)
      
In order to create diffs that work with the perforce server, when
posting from a git-p4 repo, we have to in effect linewise process the
diff output from git diff. For very large files this can take quite a
while and users can be confused as to what is going on.

The solution is to print something to the standard output when diffing a
very large file and update it with a bit of progress every 1000 lines.

     


    		
    06921eb19a0f937699f0058a23d1e017e88c5800

   



  
 




 













 






 
 
 

  

   

    

     
    

    
    
     
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      Description
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      Last Updated
     

    
    



     

      
       
       
We're trying to move away from a model where SCMClients, or really anything but command code, generates non-logging output or …

      		
      
       chipx86chipx86
      
      
       
      
     




     

      
       
       
E201 whitespace after '('

      		
      
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E225 missing whitespace around operator

      		
      
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    We're trying to move away from a model where SCMClients, or really anything but command code, generates non-logging output or otherwise assumes anything about the environment in which it's being run. We therefore can't put progress information here.
    

    Plus, this probably breaks rbt diff, which will get the progress info in the output.
    

    What I'd suggest instead is introducing a spinner or something in rbt post for diff generation.
    

    A larger change could involve some optional progress callback during diff generation that could supply the number of total files and generated files, and to use that to construct a progress bar (similar to those used for diff validation/upload), but a basic spinner should be fine.
    
  
    
 
    

 
    
  


    
 
    
 
      

  


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      Sure. I thought this might be at least mildly contentious. I'll drop it. Thanks for taking a look.
      
 
      

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puremourning




   

   

  

 



 

  


   

   

    
 Review request changed

    
   


  

  

  






 

  Status:
  

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