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Tue, Jan 7, 03:12

slides
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#!/usr/bin/python
"""
This executable permits to generate an advanced presentation
from a Jupyter notebook.
The capabilities are:
- a server of reveal content
- a pptx (under developement)
- a beamer tex file (TODO)
"""
################################################################
import argparse
import os
import re
import Slides.count_slides as count_slides
import Slides.cell_manager as cell_manager
################################################################
def getNotebookFilenames(slides_file):
"""
When a directory is provided to the executable,
a file named 'slides' is searched for with
the expected list of ipython notebooks.
The list of notebooks to consider is then
returned.
"""
if not os.path.isfile(slides_file):
raise Exception("Cannot find slides file")
f = open(slides_file)
slides = [_l.strip() for _l in f.readlines() if _l != ""]
return slides
################################################################
def main():
parser = argparse.ArgumentParser(description='Slide launcher')
parser.add_argument(
"--execute", action='store_true',
help=('Requests to execute all the notebooks launching '
'the slides server'))
parser.add_argument("--no_count", action='store_false',
help="Requests not to count slides generated")
parser.add_argument("notebooks", nargs='*',
help="The notebooks to associate in a presentation")
parser.add_argument(
"--internet", action='store_true',
help="Weather the http server should serve on the internet")
parser.add_argument("--html", action='store_true',
help="only produce a html file")
parser.add_argument("--beamer", action='store_true',
help="produce a beamer/latex file and the pdf")
parser.add_argument("--add_cell_number", action='store_true',
help="add the cell number before each cell")
parser.add_argument("--select_cells", type=int, nargs='*',
help="Provides a list of cells to select")
parser.add_argument("--font_size", type=str, default='25px',
help="Provides the font size of the presentation")
parser.add_argument("-o", "--out_filename", type=str, default="talk.ipynb",
help=("Gives the name of notebook to generate when"
" transforming or merging input notebooks"))
parser.add_argument("-f", "--filter_correction", action="store_true",
help=("Asks to produce a copy of the notebook with "
" the correction removed"))
parser.add_argument("-p", "--prepare_correction", action="store_true",
help=("Asks to produce a copy of the note book with "
" only the correction tags removed"))
arguments = parser.parse_args()
filtered_replacement = None
if len(arguments.notebooks) == 1:
if os.path.isdir(arguments.notebooks[0]):
slides_path = arguments.notebooks[0]
slides_file = os.path.join(slides_path, 'slides')
arguments.notebooks = getNotebookFilenames(slides_file)
else:
_file = arguments.notebooks[0]
ext = os.path.splitext(_file)[1]
if ext == '.sld':
arguments.notebooks = getNotebookFilenames(_file)
if arguments.execute:
for n in arguments.notebooks:
cell_manager.executeNotebook(n)
select_functor = None
modify_functor = None
if arguments.select_cells:
select_cells = set(arguments.select_cells)
def _sel_by_index(i, _cell):
return i in select_cells
select_functor = _sel_by_index
if arguments.filter_correction:
# _original_sel = select_functor
def _sel_correction(__unused__i, cell):
# if _original_sel(i, cell) is False:
# return False
if ("solution" in cell.metadata and
cell.metadata.solution is True):
cell.source = "**Place your answer here**"
cell.output = ""
if re.search("SolutionToRemove", cell.source):
if cell.cell_type == 'code':
cell.source = "# Place your answer here"
if cell.cell_type == 'markdown':
cell.source = '---\n\n **Place your answer here** \n\n ---\n\n'
# print(cell.source)
return cell
modify_functor = _sel_correction
if arguments.prepare_correction:
def _remove_solution_tags(__unused__i, cell):
# print(cell)
if cell.cell_type == 'markdown':
cell.source = cell.source.replace(
"SolutionToRemove", "---\n\n **Solution:**\n\n ---\n\n").strip()
if cell.cell_type == 'code':
cell.source = cell.source.replace(
"# SolutionToRemove", "###########\n# Solution:\n##########\n").strip()
# print(cell)
return cell
modify_functor = _remove_solution_tags
try:
cell_manager.mergeNotebooks(arguments.notebooks,
add_cell_number=arguments.add_cell_number,
select_functor=select_functor,
modify_functor=modify_functor,
out_filename=arguments.out_filename)
except cell_manager.NotFoundNotebooks:
print('Could not find the notebooks to treat: check path provided')
return
if not arguments.no_count:
nb_slides = count_slides.countSlides([arguments.out_filename])
print("*" * 20)
print("You generated a talk with {0} slides".format(nb_slides))
print("*" * 20)
if arguments.filter_correction or arguments.prepare_correction:
return
if arguments.html:
cell_manager.generateHTML(
arguments.out_filename, font_size=arguments.font_size)
elif arguments.beamer:
cell_manager.generateBeamer(
arguments.out_filename, font_size=arguments.font_size)
elif arguments.internet:
cell_manager.launchSlideServer(arguments.out_filename,
options="--ServePostProcessor.ip='*'",
font_size=arguments.font_size)
else:
cell_manager.launchSlideServer(
arguments.out_filename, font_size=arguments.font_size)
################################################################
if __name__ == "__main__":
main()

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