Adopt `potodo` in Makefile

I found a tool named potodo that provides same functionalities with part of our current Makefile commands but has better format. We can consider adopting this tool in our Makefile (or even storing the output as a file and updating it whenever a PR is merged).

• Listing untranslated files

  • make todo

    > make todo           
    for file in *.po */*.po; do echo $(msgattrib --untranslated $file | grep ^msgid | sed 1d | wc -l ) $file; done | grep -v ^0 | sort -gr
    929 library/stdtypes.po
    790 library/os.po
    660 whatsnew/3.3.po
    633 library/curses.po
    577 c-api/typeobj.po
    555 whatsnew/3.7.po
    554 library/datetime.po
    539 whatsnew/3.5.po
    539 whatsnew/2.6.po
    518 whatsnew/3.2.po
    517 whatsnew/3.6.po
    ...
    

  • potodo

    > potodo
    # extending (3.17% done)
    
    - building.po                      0 /  23 (  0.0% translated)
    - embedding.po                     1 /  45 (  2.0% translated)
    - extending.po                     2 / 158 (  1.0% translated)
    - newtypes.po                      0 /  91 (  0.0% translated)
    - newtypes_tutorial.po             0 / 123 (  0.0% translated)
    - windows.po                       0 /  21 (  0.0% translated)
    
    
    # faq (10.27% done)
    
    - design.po                       13 / 141 (  9.0% translated), 2 fuzzy
    - extending.po                     0 /  60 (  0.0% translated)
    - general.po                      33 /  91 ( 36.0% translated)
    - gui.po                           2 /  17 ( 11.0% translated)
    - library.po                      11 / 142 (  7.0% translated)
    - programming.po                  13 / 372 (  3.0% translated)
    - windows.po                       3 /  47 (  6.0% translated)
    ...
    

• Listing fuzzy entries

  • make fuzzy

    > make fuzzy
    for file in *.po */*.po; do echo $(msgattrib --only-fuzzy --no-obsolete "$file" | grep -c '#, fuzzy') $file; done | grep -v ^0 | sort -gr
    163 library/functions.po
    8 library/statistics.po
    5 c-api/function.po
    5 c-api/datetime.po
    4 library/unittest.po
    3 library/heapq.po
    ...
    

  • potodo --only-fuzzy

    > potodo -f
    # c-api (5.20% done)
    
    - datetime.po                      8 /  41 ( 19.0% translated), 5 fuzzy
    - dict.po                          5 /  30 ( 16.0% translated), 1 fuzzy
    - function.po                      4 /  18 ( 22.0% translated), 5 fuzzy
    - unicode.po                       5 / 334 (  1.0% translated), 1 fuzzy
    
    
    # distutils (0.00% done)
    
    - examples.po                      0 /  46 (  0.0% translated), 1 fuzzy
    
    
    # faq (9.22% done)
    
    - design.po                       13 / 141 (  9.0% translated), 2 fuzzy
    ...
    

• Get overall progress

  • make progress

    > make progress
    4.4%
    

  • potodo | tail -n2 | head -n1 | cut -c 10- | sed 's/[%].*$/%/g'

    > potodo | tail -n2 | head -n1 | cut -c 10- |  sed 's/[%].*$/%/g'
    4.31%
    

Comienza con los comandos del Makefile del repositorio para todo, fuzzy y progress, y luego compara su salida con los ejemplos documentados de potodo en este issue. Comprueba cómo se invocaría potodo en el Makefile y si su salida debería seguir siendo el resultado de un comando o almacenarse como un archivo. Se considera terminado cuando los comandos seleccionados de estado de traducción proporcionen los resultados esperados al estilo de potodo.