def _download_existing_file(ctx: Context):
if not ctx.out_file.exists():
ctx.info(f'trying to download {ctx.out_file.name}')
url = BASE_URL + urllib.parse.quote(ctx.out_file.name)
if elib.downloader.download(url, ctx.out_file):
ctx.info('download successful')
else:
ctx.info('download failed')
def skip_file(ctx: Context) -> bool:
"""
Checks if a file should be skipped
Tests for:
- EDLM version
- index.md
- template.tex
- media folders content
Args:
ctx: Context
Returns: True if file should be skipped
"""
if ctx.out_file.exists():
pdf = pdfrw.PdfReader(str(ctx.out_file.absolute()))
creator = pdfstring.PdfString.to_unicode(pdf.Info.Creator)
if creator != 'EDLM ' + __version__:
ctx.info(
'document generated with an older version of EDLM, regenerating'
)
return False
producer = pdfstring.PdfString.to_unicode(pdf.Info.Producer)
if producer != 'EDLM ' + _get_document_hash(ctx):
ctx.info('document updated, regenerating')
return False
ctx.info('this document has not been modified, skipping it')
if ctx.regen:
ctx.info('forcing re-generation of all documents anyway')
return False
return True
return False
def _build_folder(ctx: Context):
ctx.info(f'making PDF')
with TempDir(ctx):
get_media_folders(ctx)
get_template(ctx)
get_index_file(ctx)
get_settings(ctx)
get_includes(ctx)
ctx.template_file = Path(ctx.temp_dir, 'template.tex').absolute()
title = ctx.source_folder.name
ctx.title = title
out_folder = elib.path.ensure_dir('.', must_exist=False, create=True)
ctx.out_folder = out_folder
for paper_size in ctx.settings.papersize:
ctx.paper_size = paper_size
_set_max_image_width(ctx)
if paper_size.lower() == 'a4' or len(ctx.settings.papersize) == 1:
ctx.out_file = Path(out_folder, f'{title}.PDF').absolute()
else:
ctx.out_file = Path(out_folder, f'{title}_{paper_size}.PDF').absolute()
_download_existing_file(ctx)
if skip_file(ctx):
continue
process_markdown(ctx)
check_for_unused_images(ctx)
process_latex(ctx)
ctx.source_file = Path(ctx.temp_dir, 'source.md').absolute()
ctx.source_file.write_text(ctx.markdown_text, encoding='utf8')
ctx.info(f'building format: {paper_size}')
ctx.debug(f'context:\n{elib.pretty_format(ctx.__repr__())}')
# noinspection SpellCheckingInspection
pandoc_cmd = [
'-s',
'--toc',
f'--template "{ctx.template_file}"',
f'--listings "{ctx.source_file}"',
f'-o "{ctx.out_file}"',
'-V geometry:margin=1.5cm',
'-V test',
'-V geometry:headheight=17pt',
'-V geometry:includehead',
'-V geometry:includefoot',
'-V geometry:heightrounded',
'-V lot',
'-V lof',
'--pdf-engine=xelatex',
f'-V papersize:{ctx.paper_size}',
'-N',
]
PANDOC(' '.join(pandoc_cmd))
add_metadata_to_pdf(ctx)