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# Manage book library.
#
# Required dependencies:
#
# - python >= 3.11
# - requests
# - pillow
# - ebook-convert CLI (from calibre)
import cli.library.command
import cli.new.command
import cli.view.command
import os
import sys
def main(bin_dir):
match sys.argv:
case [ _, 'new' ]:
books_library = get_books_library()
cli.new.command.run(books_library)
case [ _, 'new', book_source ]:
if os.path.isfile(book_source):
books_library = get_books_library()
cli.new.command.run(books_library, book_source)
else:
print_help(title=f'File not found: {book_source}.')
exit(1)
case [ _, 'library' ]:
books_library = get_books_library()
cli.library.command.run(books_library)
case [ _, 'view' ]:
books_library = get_books_library()
books_browser = get_env_var('BOOKS_BROWSER')
cli.view.command.run(books_library, books_browser, bin_dir)
case [ _, '--help' ]:
print_help()
case [ _, '-h' ]:
print_help()
case _:
print_help('Command not found.')
exit(1)
def get_books_library():
books_library = get_env_var('BOOKS_LIBRARY')
if os.path.isdir(books_library):
return books_library
else:
print_help(title=f'BOOKS_LIBRARY {books_library} not found.')
exit(1)
def get_env_var(key):
value = os.getenv(key)
if value:
return value
else:
print_help(title=f'{key} environment variable is required.')
exit(1)
def print_help(title='Manage book library'):
print(f"""{title}
- Insert book entry with optional ebook file:
$ python {sys.argv[0]} new [path-to-book]
- Print library metadata as json:
$ python {sys.argv[0]} library
- View books in web page:
$ python {sys.argv[0]} view
Environment variables:
BOOKS_LIBRARY: path to book library,
BOOKS_BROWSER: browser command executed to view the library.""")
if __name__ == "__main__":
main()
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