def get_row(row_number: int, referencing_row: Row,
referencing_column: Column) -> Row:
""" Return the row at a row index. """
context = os.path.basename(referencing_row.data_path)
from_row_index = referencing_row.row_index
from_column_name = referencing_column.name
# when looking at rows in a CSV they are not zero-based, and the first row
# is always the headers, which makes the first row of actual data (that
# you see) appear visually at row #2, like for example:
# #1 'rank,title'
# #2 '2,My Card'
# #2 '4,My Other Card'
# however, of course, when reading from the file, the first row is
# actually at index 0, so we have to take this into account
# this logic essentially makes '#0' and '#1' invalid row numbers
line_number = row_number - 2
if line_number < 0:
if row_number == 1:
# special case- user probably meant the first data row (which is always #2)
WarningDisplay.referencing_row_header(
WarningContext(context,
row_index=from_row_index,
column=from_column_name))
else:
WarningDisplay.referencing_row_out_of_bounds(
WarningContext(context,
row_index=from_row_index,
column=from_column_name),
referenced_row_number=row_number)
return None
with open(referencing_row.data_path) as data_file_raw:
data_file = FileWrapper(data_file_raw)
# read data appropriately
data = csv.DictReader(lower_first_row(data_file))
try:
# then read rows until reaching the target row_number
row_data = next(itertools.islice(data, line_number, None))
except StopIteration:
WarningDisplay.referencing_row_out_of_bounds(
WarningContext(context,
row_index=from_row_index,
column=from_column_name),
referenced_row_number=row_number)
else:
if Row.is_excluded(data_file.raw_line):
WarningDisplay.referencing_excluded_row(
WarningContext(context,
row_index=from_row_index,
column=from_column_name),
referenced_row_number=row_number)
else:
# create a new row with the data at the referenced row
return Row(row_data, referencing_row.data_path)
def get_row(row_number: int, referencing_row: Row, referencing_column: Column) -> Row:
""" Return the row at a row index. """
context = os.path.basename(referencing_row.data_path)
from_row_index = referencing_row.row_index
from_column_name = referencing_column.name
# when looking at rows in a CSV they are not zero-based, and the first row
# is always the headers, which makes the first row of actual data (that
# you see) appear visually at row #2, like for example:
# #1 'rank,title'
# #2 '2,My Card'
# #2 '4,My Other Card'
# however, of course, when reading from the file, the first row is
# actually at index 0, so we have to take this into account
# this logic essentially makes '#0' and '#1' invalid row numbers
line_number = row_number - 2
if line_number < 0:
if row_number == 1:
# special case- user probably meant the first data row (which is always #2)
WarningDisplay.referencing_row_header(
WarningContext(context, row_index=from_row_index, column=from_column_name))
else:
WarningDisplay.referencing_row_out_of_bounds(
WarningContext(context, row_index=from_row_index, column=from_column_name),
referenced_row_number=row_number)
return None
with open(referencing_row.data_path) as data_file_raw:
data_file = FileWrapper(data_file_raw)
# read data appropriately
data = csv.DictReader(lower_first_row(data_file))
try:
# then read rows until reaching the target row_number
row_data = next(itertools.islice(data, line_number, None))
except StopIteration:
WarningDisplay.referencing_row_out_of_bounds(
WarningContext(context, row_index=from_row_index, column=from_column_name),
referenced_row_number=row_number)
else:
if Row.is_excluded(data_file.raw_line):
WarningDisplay.referencing_excluded_row(
WarningContext(context, row_index=from_row_index, column=from_column_name),
referenced_row_number=row_number)
else:
# create a new row with the data at the referenced row
return Row(row_data, referencing_row.data_path)
def make(data_paths: list,
header_path: str=None,
definitions_path: str=None,
output_path: str=None,
output_filename: str=None,
force_page_breaks: bool=False,
should_disable_backs: bool=False,
should_disable_page_sections: bool=False,
default_card_size_identifier: str='standard',
is_preview: bool=False,
clean_unused_resources: bool=False):
""" Build cards for all specified datasources. """
time_started_make = datetime.datetime.now()
datasource_count = len(data_paths)
exclude_datasource_named = (os.path.basename(definitions_path)
if definitions_path is not None
else None)
if datasource_count == 0:
# attempt finding any datasources in current working directory
data_paths = discover_datasources(in_directory='.',
except_datasource_name=exclude_datasource_named)
datasource_count = len(data_paths)
elif datasource_count > 0:
# determine whether any datasources point to a directory
for i, datasource_path in enumerate(data_paths):
if os.path.isdir(datasource_path):
# discover any datasources within the specified directory
discovered_datasource_paths = discover_datasources(
datasource_path, except_datasource_name=exclude_datasource_named)
# replace the datasource directory with any datasources discovered within
data_paths = data_paths[:i] + discovered_datasource_paths + data_paths[i + 1:]
datasource_count = len(data_paths)
if datasource_count > 0:
data_path_names, duplicates_count = get_data_path_names(data_paths)
duplicates = (' ({0} {1})'.format(
duplicates_count, 'duplicate' if duplicates_count == 1 else 'duplicates')
if duplicates_count > 0 else '')
print('Generating cards from {0} {1}{2}:\n {3}'.format(
datasource_count, 'datasources' if datasource_count > 1 else 'datasource', duplicates,
data_path_names))
print()
else:
WarningDisplay.no_datasources()
# just quit- there's nothing to do
return
disable_auto_templating = False
if definitions_path is None:
# no definitions file has been explicitly specified, so try looking for it automatically
found, potential_definitions_path = find_file_path('definitions.csv', data_paths)
if found and potential_definitions_path is not None:
definitions_path = potential_definitions_path
WarningDisplay.using_automatically_found_definitions_info(
definitions_path)
definitions = get_definitions_from_file(definitions_path)
if is_preview:
WarningDisplay.preview_enabled_info()
# dict of all image paths discovered for each context during card generation
context_image_paths = {}
# some definitions are always guaranteed to be referenced,
# if not by cards, then by the final page output
all_referenced_definitions = {TemplateFields.TITLE,
TemplateFields.DESCRIPTION,
TemplateFields.COPYRIGHT,
TemplateFields.AUTHOR,
TemplateFields.VERSION}
# resolve any image fields found in definitions
image_paths_from_definitions = []
for definition, content in definitions.items():
# build a temporary template with the definition content
template = Template(content)
# fill any partial definitions, as this might reveal other stuff
all_referenced_definitions |= fill_definitions(definitions, template)
# fill any image fields within
image_paths_in_definition = fill_image_fields(template)
# store every path found
image_paths_from_definitions.extend(image_paths_in_definition)
# update definition with resolved content (note that we only pre-resolve image fields here
# and any complex/partially defined image fields will not be resolved at this point)
definitions[definition] = template.content
if definitions_path is not None:
image_paths_from_definitions = transformed_image_paths(image_paths_from_definitions,
definitions_path)
context_image_paths[definitions_path] = list(set(image_paths_from_definitions))
base_path = get_base_path()
card_template_path = os.path.join(base_path, 'templates/base/card.html')
card, filled_image_paths = get_template(card_template_path)
if len(filled_image_paths) > 0:
context_image_paths[card_template_path] = list(set(filled_image_paths))
page_template_path = os.path.join(base_path, 'templates/base/page.html')
page, filled_image_paths = get_template(page_template_path)
if len(filled_image_paths) > 0:
context_image_paths[page_template_path] = list(set(filled_image_paths))
page_filler_template_path = os.path.join(base_path, 'templates/base/page_filler.html')
page_filler, filled_image_paths = get_template(page_filler_template_path)
if len(filled_image_paths) > 0:
context_image_paths[page_filler_template_path] = list(set(filled_image_paths))
section_template_path = os.path.join(base_path, 'templates/base/section.html')
section, filled_image_paths = get_template(section_template_path)
if len(filled_image_paths) > 0:
context_image_paths[section_template_path] = list(set(filled_image_paths))
index_template_path = os.path.join(base_path, 'templates/base/index.html')
index, filled_image_paths = get_template(index_template_path)
if len(filled_image_paths) > 0:
context_image_paths[index_template_path] = list(set(filled_image_paths))
not_found_template_path = os.path.join(base_path, 'templates/base/error/could_not_open.html')
with open(not_found_template_path) as error_template:
template_not_opened = error_template.read()
no_front_template_path = os.path.join(base_path, 'templates/base/error/not_provided.html')
with open(no_front_template_path) as error_template:
template_not_provided = error_template.read()
no_back_template_path = os.path.join(base_path, 'templates/base/error/back_not_provided.html')
with open(no_back_template_path) as error_template:
template_back_not_provided = error_template.read()
default_card_size = CardSizes.get_card_size(default_card_size_identifier)
if default_card_size is None:
default_card_size = CardSizes.get_default_card_size()
WarningDisplay.bad_card_size(
WarningContext(), size_identifier=default_card_size_identifier)
# buffer that will contain at most MAX_CARDS_PER_PAGE amount of cards
cards = ''
# buffer that will contain at most MAX_CARDS_PER_PAGE amount of card backs
backs = ''
# buffer of a row of backs that is filled in reverse to support double-sided printing
backs_row = ''
# buffer for all generated pages
pages = ''
embedded_styles = {}
# incremented each time a card is generated, but reset to 0 for each page
cards_on_page = 0
# incremented each time a card is generated
cards_total = 0
# incremented each time a page is generated
pages_total = 0
# incremented for each unique card (i.e. not incremented for copies/duplicates)
cards_total_unique = 0
# holds total card counts per datasource
cards_total_per_context = {}
previous_card_size = None
page_size = CardSizes.get_page_size()
pages_contain_backs = False
if not should_disable_backs:
# if pages should render card backs, we need to figure out if any datasources
# actually *do* contain specifications for card back templates
# if any do, we need to know this beforehand to handle the synchronization issue
# with mixing non-back and back datasources for double-sided printing
for data_path in data_paths:
if not os.path.isfile(data_path):
continue
with open(data_path) as data_file:
# read the first line which should contain the column names
header_line = data_file.readline()
if Columns.TEMPLATE_BACK in header_line:
pages_contain_backs = True
# we don't need to continue; we figured out that at least one datasource
# should render card backs
break
previous_context = None
contexts_per_page = []
disable_backs = should_disable_backs
for data_path_index, data_path in enumerate(data_paths):
# define the context as the base filename of the current data- useful when troubleshooting
context = os.path.basename(data_path)
card_size = default_card_size
image_paths_from_datasource = []
# determine whether this path leads to anything
if not os.path.isfile(data_path):
# if it doesn't, warn that the path to the datasource is not right
WarningDisplay.bad_data_path_error(WarningContext(context), data_path)
# and skip this datasource
continue
cards_total_per_context[context] = 0
with open(data_path) as data_file_raw:
# wrap the file stream to retain access to unparsed lines
data_file = FileWrapper(data_file_raw)
# read the csv as a dict, so that we can access each column by name
data = csv.DictReader(lower_first_row(data_file))
# make a list of all column names as they are (but stripped of excess whitespace)
column_names = [column_name.strip() for column_name in data.fieldnames]
# then determine the size identifier (if any; e.g. '@template:jumbo')
size_identifier, stripped_column_names = size_identifier_from_columns(column_names)
# determine whether this datasource contains invalid columns
invalid_column_names = get_invalid_columns(stripped_column_names)
if len(invalid_column_names) > 0:
# warn that this datasource will be skipped
WarningDisplay.invalid_columns_error(
WarningContext(context), invalid_column_names)
continue
# replace the column keys with stripped/parsed representations
# (e.g. '@template:jumbo' becomes just '@template')
data.fieldnames = stripped_column_names
if size_identifier is not None:
new_card_size = CardSizes.get_card_size(size_identifier)
if new_card_size is not None:
card_size = new_card_size
else:
WarningDisplay.bad_card_size(
WarningContext(context), size_identifier)
if card_size != previous_card_size:
if cards_on_page > 0:
# card sizing is different for this datasource, so any remaining cards
# must be added to a new page at this point
pages += get_page(pages_total + 1, cards, page, section, contexts_per_page,
exclude_section=should_disable_page_sections)
pages_total += 1
if not disable_backs:
# using the last value of cards_per_row
cards_on_last_row = cards_on_page % cards_per_row
if cards_on_last_row is not 0:
# less than MAX_CARDS_PER_ROW cards were added to the current line, so
# we have to add additional blank filler cards to ensure correct layout
remaining_backs = cards_per_row - cards_on_last_row
while remaining_backs > 0:
# keep adding empty filler card backs until we've filled a row
backs_row = empty_back + backs_row
remaining_backs -= 1
backs += backs_row
backs_row = ''
# fill another page with the backs
pages += get_page(pages_total + 1, backs, page, section, contexts_per_page,
is_card_backs=True,
exclude_section=should_disable_page_sections)
pages_total += 1
backs = ''
if pages_contain_backs and disable_backs:
# we know some pages with backs have been added, and we know that this
# datasource does not contain any card backs, so in order to keep
# two-sided printing in sync, we need to add a filler page
# the filler page counts as a page full of backs, but contains content
# that will not be printed (not even a footer)
pages += get_page(pages_total + 1, '', page_filler, section, contexts_per_page,
is_card_backs=True, is_filler=True,
exclude_section=should_disable_page_sections)
pages_total += 1
WarningDisplay.datasource_contains_filler_pages(
WarningContext(previous_context))
# reset to prepare for the next page
cards_on_page = 0
cards = ''
# we're finished with the current datasource, and we'll be starting a new page
# so we reset any saved contexts
contexts_per_page = []
contexts_per_page.append(context)
disable_backs = should_disable_backs
contains_filler_pages = False
card_width, card_height = card_size.size_in_inches
page_width, page_height = page_size.size_in_inches
cards_per_row = math.floor(page_width / card_width)
cards_per_column = math.floor(page_height / card_height)
max_cards_per_page = cards_per_column * cards_per_row
if disable_auto_templating:
default_template_content = None
else:
# get a fitting template by analyzing the content of the data
default_template_content = template_from_data(data)
# reset the iterator
# (note how this is done directly on the file stream; i.e. not on the wrapper)
data_file_raw.seek(0)
# and start over
data = csv.DictReader(
lower_first_row(data_file),
fieldnames=stripped_column_names)
# setting fieldnames explicitly causes the first row
# to be treated as data, so skip it
next(data)
if default_template_content is None and Columns.TEMPLATE not in data.fieldnames:
WarningDisplay.missing_default_template(
WarningContext(context))
if not disable_backs and Columns.TEMPLATE_BACK in data.fieldnames:
WarningDisplay.assume_backs_info(
WarningContext(context))
else:
# there's no back templates specified; so we can't render any
if not disable_backs:
WarningDisplay.no_backs_info(
WarningContext(context))
# so disable them completely
disable_backs = True
if not disable_backs:
# empty backs may be necessary to fill in empty spots on a page to ensure
# that the layout remains correct
# note that we're using a completely empty template, except for the size class field
empty_back = get_sized_card(
'<div class="card {0}"></div>'.format(
str(TemplateField(name=TemplateFields.CARD_SIZE))),
size_class=card_size.style, content='')
ambiguous_references = determine_ambiguous_references(
set(stripped_column_names),
set(definitions.keys()))
if len(ambiguous_references) > 0:
WarningDisplay.potential_ambiguous_references(
WarningContext(context), list(ambiguous_references))
previous_template_path = None
previous_template_path_back = None
row_index = 1
for row_data in data:
# since the column names counts as a row, and most editors
# do not use a zero-based row index, the first row == 2
row_index += 1
if Row.is_excluded(data_file.raw_line):
# this row should be ignored - so skip and continue
# note that we still need to increment the row_index;
# otherwise row references will be offset incorrectly
continue
row = Row(row_data, data_path, row_index)
if row.is_prototype():
# prototype rows should be skipped, but since the skip is intentional,
# we should not warn about it
count = 0
else:
count, indeterminable_count = row.determine_count()
if indeterminable_count:
WarningDisplay.indeterminable_count(
WarningContext(context, row_index))
elif count == 0:
# the count was explicitly set to 0, but as this might be a temporary thing,
# we should warn about skipping this card
WarningDisplay.card_was_skipped_intentionally_info(
WarningContext(context, row_index))
if count > 100:
# the count was unusually high; ask whether it's an error or not
if WarningDisplay.abort_unusually_high_count(
WarningContext(context, row_index), count):
# it was an error, so break out and continue with the next card
continue
if count > 0 and is_preview:
# only render 1 card unless it should be skipped
count = 1
# determine which template to use for this card, if any
template_path = row_data.get(Columns.TEMPLATE, None)
template_path = previous_or_current_path(
template_path, previous_template_path)
previous_template_path = template_path
if not disable_backs:
template_path_back = row_data.get(Columns.TEMPLATE_BACK, None)
template_path_back = previous_or_current_path(
template_path_back, previous_template_path_back)
previous_template_path_back = template_path_back
if count == 0:
# might as well move on to the next card-
# this card should not count towards number of unique cards either
# note, however, that we *do* want to register the template paths
continue
resolved_template_path = None
if template_path is not None and len(template_path) > 0:
template_content, not_found, resolved_template_path = template_from_path(
template_path, relative_to_path=data_path)
if not_found:
template_content = template_not_opened
WarningDisplay.bad_template_path_error(
WarningContext(context, row_index),
resolved_template_path, cards_affected=count)
elif len(template_content) == 0:
template_content = default_template_content
WarningDisplay.empty_template(
WarningContext(context, row_index),
resolved_template_path, cards_affected=count)
else:
template_content = default_template_content
if template_content is not None:
WarningDisplay.using_auto_template(
WarningContext(context, row_index), cards_affected=count)
if template_content is None:
template_content = template_not_provided
WarningDisplay.missing_template_error(
WarningContext(context, row_index), cards_affected=count)
# build a template object
# note that we apply the path *as is*; i.e. not the resolved path- this is done to
# let any warning show the path to the template as it was defined in the data
template_front = Template(template_content, template_path)
embedded_styles[template_front.path] = strip_styles(template_front)
stripped_template_content = template_front.content
resolved_template_path_back = None
if not disable_backs:
template_back_content = None
if template_path_back is not None and len(template_path_back) > 0:
template_back_content, not_found, resolved_template_path_back = template_from_path(
template_path_back, relative_to_path=data_path)
if not_found:
template_back_content = template_not_opened
WarningDisplay.bad_template_path_error(
WarningContext(context, row_index),
resolved_template_path_back, is_back=True,
cards_affected=count)
elif len(template_back_content) == 0:
WarningDisplay.empty_template(
WarningContext(context, row_index),
resolved_template_path_back, is_back_template=True,
cards_affected=count)
if template_back_content is None:
template_back_content = template_back_not_provided
template_back = Template(template_back_content, template_path_back)
embedded_styles[template_back.path] = strip_styles(template_back)
stripped_template_back_content = template_back.content
# this is also the shared index for any instance of this card
cards_total_unique += 1
for i in range(count):
card_index = cards_total + 1
# since we're mutating the template for each card, we need to make a new one
template_front = Template(
stripped_template_content, resolved_template_path)
card_content, render_data = fill_card(
template_front,
row.front_row(),
card_index, cards_total_unique,
definitions)
if (template_front.content is not template_not_provided
and template_front.content is not template_not_opened):
if len(render_data.unused_fields) > 0:
WarningDisplay.missing_fields_in_template(
WarningContext(context, row_index),
list(render_data.unused_fields),
cards_affected=count)
if len(render_data.unknown_fields) > 0:
WarningDisplay.unknown_fields_in_template(
WarningContext(context, row_index),
list(render_data.unknown_fields),
template_path,
cards_affected=count)
all_referenced_definitions |= render_data.referenced_definitions
embedded_styles.update(render_data.embedded_styles)
image_paths_from_datasource.extend(render_data.image_paths)
current_card = get_sized_card(
card, size_class=card_size.style, content=card_content)
cards += current_card
cards_on_page += 1
cards_total += 1
cards_total_per_context[context] += 1
if not disable_backs:
template_back = Template(
stripped_template_back_content, resolved_template_path_back)
back_content, render_data = fill_card(
template_back,
row.back_row(),
card_index, cards_total_unique,
definitions)
if (template_back.content is not template_back_not_provided
and template_back.content is not template_not_opened):
if len(render_data.unused_fields) > 0:
WarningDisplay.missing_fields_in_template(
WarningContext(context, row_index),
list(render_data.unused_fields), is_back_template=True,
cards_affected=count)
if len(render_data.unknown_fields) > 0:
WarningDisplay.unknown_fields_in_template(
WarningContext(context, row_index),
list(render_data.unknown_fields),
template_path_back,
is_back_template=True,
cards_affected=count)
all_referenced_definitions |= render_data.referenced_definitions
embedded_styles.update(render_data.embedded_styles)
image_paths_from_datasource.extend(render_data.image_paths)
current_card_back = get_sized_card(
card, size_class=card_size.style, content=back_content)
# prepend this card back to the current line of backs
backs_row = current_card_back + backs_row
# card backs are prepended rather than appended to
# ensure correct layout when printing doublesided
if cards_on_page % cards_per_row is 0:
# a line has been filled- append the 3 card backs
# to the page in the right order
backs += backs_row
# reset to prepare for the next line
backs_row = ''
if cards_on_page == max_cards_per_page:
# add another page full of cards
pages += get_page(pages_total + 1, cards, page, section, contexts_per_page,
exclude_section=should_disable_page_sections)
pages_total += 1
if not disable_backs:
# and one full of backs
pages += get_page(pages_total + 1, backs, page, section,
contexts_per_page, is_card_backs=True,
exclude_section=should_disable_page_sections)
pages_total += 1
# reset to prepare for the next page
backs = ''
if pages_contain_backs and disable_backs:
pages += get_page(pages_total + 1, '', page_filler, section,
contexts_per_page, is_card_backs=True, is_filler=True,
exclude_section=should_disable_page_sections)
pages_total += 1
contains_filler_pages = True
# reset to prepare for the next page
cards_on_page = 0
cards = ''
# we're not necesarilly done with the current context, but any other context
# should be cleared at this point
contexts_per_page = [context]
if (force_page_breaks or data_path is data_paths[-1]) and cards_on_page > 0:
# in case we're forcing pagebreaks for each datasource, or we're on the last datasource
# and there's still cards remaining, then do a pagebreak and fill those into a new page
pages += get_page(pages_total + 1, cards, page, section, contexts_per_page,
exclude_section=should_disable_page_sections)
pages_total += 1
if not disable_backs:
cards_on_last_row = cards_on_page % cards_per_row
if cards_on_last_row is not 0:
# less than MAX_CARDS_PER_ROW cards were added to the current line,
# so we have to add additional blank filler cards to ensure a correct layout
remaining_backs = cards_per_row - cards_on_last_row
while remaining_backs > 0:
# keep adding empty filler card backs until we've filled a row
backs_row = empty_back + backs_row
remaining_backs -= 1
backs += backs_row
backs_row = ''
# fill another page with the backs
pages += get_page(pages_total + 1, backs, page, section, contexts_per_page,
is_card_backs=True,
exclude_section=should_disable_page_sections)
pages_total += 1
backs = ''
if pages_contain_backs and disable_backs:
pages += get_page(pages_total + 1, '', page_filler, section, contexts_per_page,
is_card_backs=True, is_filler=True,
exclude_section=should_disable_page_sections)
pages_total += 1
contains_filler_pages = True
# reset to prepare for the next page
cards_on_page = 0
cards = ''
# we're finished with this context
contexts_per_page = []
if contains_filler_pages:
WarningDisplay.datasource_contains_filler_pages(
WarningContext(context))
# temporary solution involving creating new Template object only used for fill_each,
# could be prettier; refactor as part of #34
pages_template = Template(pages)
fill_each(TemplateFields.CARDS_TOTAL_IN_CONTEXT,
str(cards_total_per_context[context]),
pages_template)
pages = pages_template.content
# store the card size that was just used, so we can determine
# whether or not the size changes for the next datasource
previous_card_size = card_size
# ensure there are no duplicate image paths, since that would just
# cause unnecessary copy operations
context_image_paths[data_path] = list(set(image_paths_from_datasource))
previous_context = context
# determine unused definitions, if any
unused_definitions = list(set(definitions.keys()) - all_referenced_definitions)
if len(unused_definitions) > 0:
WarningDisplay.unused_definitions(unused_definitions)
if output_path is None:
# output to current working directory unless otherwise specified
output_path = ''
output_directory_name = 'generated'
# construct the final output path
output_path = os.path.join(output_path, output_directory_name)
# ensure all directories exist or created if missing
create_directories_if_necessary(output_path)
output_filepath = os.path.join(output_path, output_filename)
# begin writing pages to the output file (overwriting any existing file)
with open(output_filepath, 'w') as result:
styles = ''
for template_path, style in embedded_styles.items():
styles = styles + '\n' + style if len(styles) > 0 else style
header = ''
if header_path is not None:
try:
with open(header_path) as header_file:
header = header_file.read().strip()
except IOError:
WarningDisplay.bad_header_file_error(header_path)
index, render_data = fill_index(
index, styles, pages, header, pages_total, cards_total, definitions)
if len(render_data.image_paths) > 0:
image_paths_from_index = transformed_image_paths(render_data.image_paths,
index_template_path)
# we assume that any leftover images would have been from a definition
context_image_paths[index_template_path] = list(set(image_paths_from_index))
result.write(index)
css_path = os.path.join(output_path, 'css')
js_path = os.path.join(output_path, 'js')
resources_path = os.path.join(output_path, get_resources_path())
create_directories_if_necessary(css_path)
create_directories_if_necessary(js_path)
create_directories_if_necessary(resources_path)
copy_file_if_necessary(os.path.join(base_path, 'templates/base/css/cards.css'),
os.path.join(css_path, 'cards.css'))
copy_file_if_necessary(os.path.join(base_path, 'templates/base/css/index.css'),
os.path.join(css_path, 'index.css'))
copy_file_if_necessary(os.path.join(base_path, 'templates/base/js/index.js'),
os.path.join(js_path, 'index.js'))
all_copied_image_filenames = []
# additionally, copy all referenced images to the output directory
for context in context_image_paths:
image_paths = context_image_paths[context]
image_filenames = [os.path.basename(image_path) for image_path in image_paths]
copy_images_to_output_directory(
image_paths, context, output_path)
all_copied_image_filenames.extend(image_filenames)
unused_resources, unused_resource_paths = get_unused_resources(
output_path, all_copied_image_filenames)
if len(unused_resources) > 0:
if clean_unused_resources:
for unused_resource_path in unused_resource_paths:
os.remove(unused_resource_path)
WarningDisplay.unused_resources_were_cleaned(
unused_resources, in_resource_dir=resources_path)
else:
WarningDisplay.unused_resources(
unused_resources, in_resource_dir=resources_path)
output_location_message = (' -> \033[4m\'{0}\'\033[0m'.format(output_filepath)
if terminal_supports_color() else
' -> \'{0}\''.format(output_filepath))
# get the grammar right
errors_or_error = 'error' if WarningDisplay.error_count == 1 else 'errors'
warnings_or_warning = 'warning' if WarningDisplay.warning_count == 1 else 'warnings'
warnings_and_errors_message = (' ({0} {1}, {2} {3}{4})'
.format(WarningDisplay.error_count, errors_or_error,
WarningDisplay.warning_count, warnings_or_warning,
('; set --verbose for more'
if not WarningDisplay.is_verbose else ''))
if WarningDisplay.has_encountered_errors()
or WarningDisplay.has_encountered_warnings()
else '')
now = datetime.datetime.now()
time_difference = now - time_started_make
time_difference_in_seconds = time_difference / timedelta(seconds=1)
if WarningDisplay.has_displayed_messages():
# break line to separate next output
print()
print('[{0}] Finished in {1:.3f} seconds{2}'.format(
'-' if not WarningDisplay.has_encountered_errors() else '!',
time_difference_in_seconds, warnings_and_errors_message))
print()
# find the total size of the generated directory
generated_directory_size = pretty_size(directory_size(output_path))
if cards_total > 0:
# get the grammar right
pages_or_page = 'pages' if pages_total > 1 else 'page'
cards_or_card = 'cards' if cards_total > 1 else 'card'
if cards_total > cards_total_unique:
print('Generated {0} ({1} unique) {2} on {3} {4} ({5})\n{6}'
.format(cards_total, cards_total_unique, cards_or_card,
pages_total, pages_or_page,
generated_directory_size, output_location_message))
else:
print('Generated {0} {1} on {2} {3} ({4})\n{5}'
.format(cards_total, cards_or_card,
pages_total, pages_or_page,
generated_directory_size, output_location_message))
else:
print('Generated 0 cards ({0})\n{1}'
.format(generated_directory_size, output_location_message))
print()
open_path(output_path)
def make(
data_paths: list,
header_path: str = None,
definitions_path: str = None,
output_path: str = None,
output_filename: str = None,
force_page_breaks: bool = False,
should_disable_backs: bool = False,
default_card_size_identifier: str = "standard",
is_preview: bool = False,
discover_datasources: bool = False,
):
""" Build cards for all specified datasources. """
time_started_make = datetime.datetime.now()
if discover_datasources:
# todo: discover any CSV files in current working directory and append those to data_paths
# todo: then clear duplicates by doing data_paths = list(set(data_paths))
pass
datasource_count = len(data_paths)
if datasource_count > 0:
data_path_names, duplicates_count = get_data_path_names(data_paths)
duplicates = (
" ({0} {1})".format(duplicates_count, "duplicate" if duplicates_count == 1 else "duplicates")
if duplicates_count > 0
else ""
)
print(
"Generating cards from {0} {1}{2}:\n {3}".format(
datasource_count, "datasources" if datasource_count > 1 else "datasource", duplicates, data_path_names
)
)
print()
else:
print("No datasources.")
if datasource_count == 0:
print("Generated 0 cards.")
return
disable_auto_templating = False
if definitions_path is None and discover_datasources:
# no definitions file has been explicitly specified, so try looking for it automatically
found, potential_definitions_path = find_file_path("definitions.csv", data_paths)
if found and potential_definitions_path is not None:
definitions_path = potential_definitions_path
WarningDisplay.using_automatically_found_definitions_info(definitions_path)
definitions = get_definitions_from_file(definitions_path)
if is_preview:
WarningDisplay.preview_enabled_info()
# dict of all image paths discovered for each context during card generation
context_image_paths = {}
base_path = get_base_path()
card_template_path = os.path.join(base_path, "templates/base/card.html")
card, filled_image_paths = get_template(card_template_path)
if len(filled_image_paths) > 0:
context_image_paths[card_template_path] = list(set(filled_image_paths))
page_template_path = os.path.join(base_path, "templates/base/page.html")
page, filled_image_paths = get_template(page_template_path)
if len(filled_image_paths) > 0:
context_image_paths[page_template_path] = list(set(filled_image_paths))
section_template_path = os.path.join(base_path, "templates/base/section.html")
section, filled_image_paths = get_template(section_template_path)
if len(filled_image_paths) > 0:
context_image_paths[section_template_path] = list(set(filled_image_paths))
index_template_path = os.path.join(base_path, "templates/base/index.html")
index, filled_image_paths = get_template(index_template_path)
if len(filled_image_paths) > 0:
context_image_paths[index_template_path] = list(set(filled_image_paths))
not_found_template_path = os.path.join(base_path, "templates/base/error/could_not_open.html")
with open(not_found_template_path) as error_template:
template_not_opened = error_template.read()
no_front_template_path = os.path.join(base_path, "templates/base/error/not_provided.html")
with open(no_front_template_path) as error_template:
template_not_provided = error_template.read()
no_back_template_path = os.path.join(base_path, "templates/base/error/back_not_provided.html")
with open(no_back_template_path) as error_template:
template_back_not_provided = error_template.read()
default_card_size = CardSizes.get_card_size(default_card_size_identifier)
if default_card_size is None:
default_card_size = CardSizes.get_default_card_size()
WarningDisplay.bad_card_size(WarningContext(), size_identifier=default_card_size_identifier)
# buffer that will contain at most MAX_CARDS_PER_PAGE amount of cards
cards = ""
# buffer that will contain at most MAX_CARDS_PER_PAGE amount of card backs
backs = ""
# buffer of a row of backs that is filled in reverse to support double-sided printing
backs_row = ""
# buffer for all generated pages
pages = ""
embedded_styles = {}
# incremented each time a card is generated, but reset to 0 for each page
cards_on_page = 0
# incremented each time a card is generated
cards_total = 0
# incremented each time a page is generated
pages_total = 0
cards_total_unique = 0
cards_total_per_context = {}
previous_card_size = None
page_size = CardSizes.get_page_size()
# some definitions are always guaranteed to be referenced,
# if not by cards, then by the final page output
all_referenced_definitions = {
TemplateFields.TITLE,
TemplateFields.DESCRIPTION,
TemplateFields.COPYRIGHT,
TemplateFields.AUTHOR,
TemplateFields.VERSION,
}
for data_path_index, data_path in enumerate(data_paths):
# define the context as the base filename of the current data- useful when troubleshooting
context = os.path.basename(data_path)
card_size = default_card_size
image_paths = []
# determine whether this path leads to anything
if not os.path.isfile(data_path):
# if it doesn't, warn that the path to the datasource is not right
WarningDisplay.bad_data_path_error(WarningContext(context), data_path)
# and skip this datasource
continue
cards_total_per_context[context] = 0
with open(data_path) as data_file_raw:
# wrap the file stream to retain access to unparsed lines
data_file = FileWrapper(data_file_raw)
# read the csv as a dict, so that we can access each column by name
data = csv.DictReader(lower_first_row(data_file))
# make a list of all column names as they are (but stripped of excess whitespace)
column_names = [column_name.strip() for column_name in data.fieldnames]
# then determine the size identifier (if any; e.g. '@template:jumbo')
size_identifier, stripped_column_names = size_identifier_from_columns(column_names)
# determine whether this datasource contains invalid columns
invalid_column_names = get_invalid_columns(stripped_column_names)
if len(invalid_column_names) > 0:
# warn that this datasource will be skipped
WarningDisplay.invalid_columns_error(WarningContext(context), invalid_column_names)
continue
# replace the column keys with stripped/parsed representations
# (e.g. '@template:jumbo' becomes just '@template')
data.fieldnames = stripped_column_names
if size_identifier is not None:
new_card_size = CardSizes.get_card_size(size_identifier)
if new_card_size is not None:
card_size = new_card_size
else:
WarningDisplay.bad_card_size(WarningContext(context), size_identifier)
disable_backs = should_disable_backs
if card_size != previous_card_size and cards_on_page > 0:
# card sizing is different for this datasource, so any remaining cards
# must be added to a new page at this point
pages += get_page(pages_total + 1, cards, page)
pages_total += 1
if not disable_backs:
# using the last value of cards_per_row
cards_on_last_row = cards_on_page % cards_per_row
if cards_on_last_row is not 0:
# less than MAX_CARDS_PER_ROW cards were added to the current line,
# so we have to add additional blank filler cards to ensure a correct layout
remaining_backs = cards_per_row - cards_on_last_row
while remaining_backs > 0:
# keep adding empty filler card backs until we've filled a row
backs_row = empty_back + backs_row
remaining_backs -= 1
backs += backs_row
backs_row = ""
# fill another page with the backs
pages += get_page(pages_total + 1, backs, page, is_card_backs=True)
pages_total += 1
backs = ""
# reset to prepare for the next page
cards_on_page = 0
cards = ""
if force_page_breaks:
pages += get_section(os.path.splitext(context)[0], data_path_index + 1, section)
card_width, card_height = card_size.size_in_inches
page_width, page_height = page_size.size_in_inches
cards_per_column = math.floor(page_width / card_width)
cards_per_row = math.floor(page_height / card_height)
max_cards_per_page = cards_per_column * cards_per_row
if disable_auto_templating:
default_template_content = None
else:
# get a fitting template by analyzing the content of the data
default_template_content = template_from_data(data)
# reset the iterator
# (note how this is done directly on the file stream; i.e. not on the wrapper)
data_file_raw.seek(0)
# and start over
data = csv.DictReader(lower_first_row(data_file), fieldnames=stripped_column_names)
# setting fieldnames explicitly causes the first row
# to be treated as data, so skip it
next(data)
if default_template_content is None and Columns.TEMPLATE not in data.fieldnames:
WarningDisplay.missing_default_template(WarningContext(context))
if not disable_backs and Columns.TEMPLATE_BACK in data.fieldnames:
WarningDisplay.assume_backs_info(WarningContext(context))
else:
if not disable_backs:
WarningDisplay.no_backs_info(WarningContext(context))
disable_backs = True
if not disable_backs:
# empty backs may be necessary to fill in empty spots on a page to ensure
# that the layout remains correct
# note that we're using a completely empty template, except for the size class field
empty_back = get_sized_card(
'<div class="card {0}"></div>'.format(str(TemplateField(name=TemplateFields.CARD_SIZE))),
size_class=card_size.style,
content="",
)
ambiguous_references = determine_ambiguous_references(set(stripped_column_names), set(definitions.keys()))
if len(ambiguous_references) > 0:
WarningDisplay.potential_ambiguous_references(WarningContext(context), list(ambiguous_references))
previous_template_path = None
previous_template_path_back = None
row_index = 1
for row_data in data:
# since the column names counts as a row, and most editors
# do not use a zero-based row index, the first row == 2
row_index += 1
if Row.is_excluded(data_file.raw_line):
# this row should be ignored - so skip and continue
# note that we still need to increment the row_index;
# otherwise row references will be offset incorrectly
continue
row = Row(row_data, data_path, row_index)
if row.is_prototype():
# prototype rows should be skipped, but since the skip is intentional,
# we should not warn about it
count = 0
else:
count, indeterminable_count = determine_count(row_data)
if indeterminable_count:
WarningDisplay.indeterminable_count(WarningContext(context, row_index))
elif count == 0:
# the count was explicitly set to 0, but as this might be a temporary thing,
# we should warn about skipping this card
WarningDisplay.card_was_skipped_intentionally_info(WarningContext(context, row_index))
if count > 100:
# the count was unusually high; ask whether it's an error or not
if WarningDisplay.abort_unusually_high_count(WarningContext(context, row_index), count):
# it was an error, so break out and continue with the next card
continue
if count > 0 and is_preview:
# only render 1 card unless it should be skipped
count = 1
# determine which template to use for this card, if any
template_path = row_data.get(Columns.TEMPLATE, None)
template_path = previous_or_current_path(template_path, previous_template_path)
previous_template_path = template_path
if not disable_backs:
template_path_back = row_data.get(Columns.TEMPLATE_BACK, None)
template_path_back = previous_or_current_path(template_path_back, previous_template_path_back)
previous_template_path_back = template_path_back
if count == 0:
# might as well move on to the next card-
# this card should not count towards number of unique cards either
# note, however, that we *do* want to register the template paths
continue
resolved_template_path = None
if template_path is not None and len(template_path) > 0:
template_content, not_found, resolved_template_path = template_from_path(
template_path, relative_to_path=data_path
)
if not_found:
template_content = template_not_opened
WarningDisplay.bad_template_path_error(
WarningContext(context, row_index), resolved_template_path, cards_affected=count
)
elif len(template_content) == 0:
template_content = default_template_content
WarningDisplay.empty_template(
WarningContext(context, row_index), resolved_template_path, cards_affected=count
)
else:
template_content = default_template_content
if template_content is not None:
WarningDisplay.using_auto_template(WarningContext(context, row_index), cards_affected=count)
if template_content is None:
template_content = template_not_provided
WarningDisplay.missing_template_error(WarningContext(context, row_index), cards_affected=count)
# build a template object
# note that we apply the path *as is*; i.e. not the resolved path- this is done to
# let any warning show the path to the template as it was defined in the data
template_front = Template(template_content, template_path)
embedded_styles[template_front.path] = strip_styles(template_front)
stripped_template_content = template_front.content
resolved_template_path_back = None
if not disable_backs:
template_back_content = None
if template_path_back is not None and len(template_path_back) > 0:
template_back_content, not_found, resolved_template_path_back = template_from_path(
template_path_back, relative_to_path=data_path
)
if not_found:
template_back_content = template_not_opened
WarningDisplay.bad_template_path_error(
WarningContext(context, row_index),
resolved_template_path_back,
is_back=True,
cards_affected=count,
)
elif len(template_back_content) == 0:
WarningDisplay.empty_template(
WarningContext(context, row_index),
resolved_template_path_back,
is_back_template=True,
cards_affected=count,
)
if template_back_content is None:
template_back_content = template_back_not_provided
template_back = Template(template_back_content, template_path_back)
embedded_styles[template_back.path] = strip_styles(template_back)
stripped_template_back_content = template_back.content
# this is also the shared index for any instance of this card
cards_total_unique += 1
for i in range(count):
card_index = cards_total + 1
# since we're mutating the template for each card, we need to make a new one
template_front = Template(stripped_template_content, resolved_template_path)
card_content, render_data = fill_card(
template_front, row.front_row(), card_index, cards_total_unique, definitions
)
if (
template_front.content is not template_not_provided
and template_front.content is not template_not_opened
):
if len(render_data.unused_fields) > 0:
WarningDisplay.missing_fields_in_template(
WarningContext(context, row_index),
list(render_data.unused_fields),
cards_affected=count,
)
if len(render_data.unknown_fields) > 0:
WarningDisplay.unknown_fields_in_template(
WarningContext(context, row_index),
list(render_data.unknown_fields),
cards_affected=count,
)
all_referenced_definitions |= render_data.referenced_definitions
image_paths.extend(render_data.image_paths)
current_card = get_sized_card(card, size_class=card_size.style, content=card_content)
cards += current_card
cards_on_page += 1
cards_total += 1
cards_total_per_context[context] += 1
if not disable_backs:
template_back = Template(stripped_template_back_content, resolved_template_path_back)
back_content, render_data = fill_card(
template_back, row.back_row(), card_index, cards_total_unique, definitions
)
if (
template_back.content is not template_back_not_provided
and template_back.content is not template_not_opened
):
if len(render_data.unused_fields) > 0:
WarningDisplay.missing_fields_in_template(
WarningContext(context, row_index),
list(render_data.unused_fields),
is_back_template=True,
cards_affected=count,
)
if len(render_data.unknown_fields) > 0:
WarningDisplay.unknown_fields_in_template(
WarningContext(context, row_index),
list(render_data.unknown_fields),
is_back_template=True,
cards_affected=count,
)
all_referenced_definitions |= render_data.referenced_definitions
image_paths.extend(render_data.image_paths)
current_card_back = get_sized_card(card, size_class=card_size.style, content=back_content)
# prepend this card back to the current line of backs
backs_row = current_card_back + backs_row
# card backs are prepended rather than appended to
# ensure correct layout when printing doublesided
if cards_on_page % cards_per_row is 0:
# a line has been filled- append the 3 card backs
# to the page in the right order
backs += backs_row
# reset to prepare for the next line
backs_row = ""
if cards_on_page == max_cards_per_page:
# add another page full of cards
pages += get_page(pages_total + 1, cards, page)
pages_total += 1
if not disable_backs:
# and one full of backs
pages += get_page(pages_total + 1, backs, page, is_card_backs=True)
pages_total += 1
# reset to prepare for the next page
backs = ""
# reset to prepare for the next page
cards_on_page = 0
cards = ""
if (force_page_breaks or data_path is data_paths[-1]) and cards_on_page > 0:
# in case we're forcing pagebreaks for each datasource, or we're on the last datasource
# and there's still cards remaining, then do a pagebreak and fill those into a new page
pages += get_page(pages_total + 1, cards, page)
pages_total += 1
if not disable_backs:
cards_on_last_row = cards_on_page % cards_per_row
if cards_on_last_row is not 0:
# less than MAX_CARDS_PER_ROW cards were added to the current line,
# so we have to add additional blank filler cards to ensure a correct layout
remaining_backs = cards_per_row - cards_on_last_row
while remaining_backs > 0:
# keep adding empty filler card backs until we've filled a row
backs_row = empty_back + backs_row
remaining_backs -= 1
backs += backs_row
backs_row = ""
# fill another page with the backs
pages += get_page(pages_total + 1, backs, page, is_card_backs=True)
pages_total += 1
backs = ""
# reset to prepare for the next page
cards_on_page = 0
cards = ""
# temporary solution involving creating new Template object only used for fill_each,
# could be prettier; refactor as part of #34
pages_template = Template(pages)
fill_each(TemplateFields.CARDS_TOTAL_IN_CONTEXT, str(cards_total_per_context[context]), pages_template)
pages = pages_template.content
# store the card size that was just used, so we can determine
# whether or not the size changes for the next datasource
previous_card_size = card_size
# ensure there are no duplicate image paths, since that would just
# cause unnecessary copy operations
context_image_paths[data_path] = list(set(image_paths))
# determine unused definitions, if any
unused_definitions = list(set(definitions.keys()) - all_referenced_definitions)
if len(unused_definitions) > 0:
WarningDisplay.unused_definitions(unused_definitions)
if output_path is None:
# output to current working directory unless otherwise specified
output_path = ""
output_directory_name = "generated"
# construct the final output path
output_path = os.path.join(output_path, output_directory_name)
# ensure all directories exist or created if missing
create_directories_if_necessary(output_path)
output_filepath = os.path.join(output_path, output_filename)
# begin writing pages to the output file (overwriting any existing file)
with open(output_filepath, "w") as result:
styles = ""
for template_path, style in embedded_styles.items():
styles = styles + "\n" + style if len(styles) > 0 else style
header = ""
if header_path is not None:
with open(header_path) as header_file:
header = header_file.read().strip()
index, render_data = fill_index(index, styles, pages, header, pages_total, cards_total, definitions)
if len(render_data.image_paths) > 0:
# we assume that any leftover images would have been from a definition
context_image_paths[definitions_path] = list(set(render_data.image_paths))
result.write(index)
css_path = os.path.join(output_path, "css")
js_path = os.path.join(output_path, "js")
resources_path = os.path.join(output_path, get_resources_path())
create_directories_if_necessary(css_path)
create_directories_if_necessary(js_path)
create_directories_if_necessary(resources_path)
copy_file_if_necessary(os.path.join(base_path, "templates/base/css/cards.css"), os.path.join(css_path, "cards.css"))
copy_file_if_necessary(os.path.join(base_path, "templates/base/css/index.css"), os.path.join(css_path, "index.css"))
copy_file_if_necessary(os.path.join(base_path, "templates/base/js/index.js"), os.path.join(js_path, "index.js"))
all_copied_image_filenames = []
# additionally, copy all referenced images to the output directory
for context in context_image_paths:
image_paths = context_image_paths[context]
image_filenames = [os.path.basename(image_path) for image_path in image_paths]
copy_images_to_output_directory(image_paths, context, output_path)
all_copied_image_filenames.extend(image_filenames)
unused_resources = get_unused_resources(output_path, all_copied_image_filenames)
if len(unused_resources) > 0:
WarningDisplay.unused_resources(unused_resources, in_resource_dir=get_resources_path())
output_location_message = (
" → \033[4m'{0}'\033[0m".format(output_filepath)
if terminal_supports_color()
else " → '{0}'".format(output_filepath)
)
# get the grammar right
errors_or_error = "error" if WarningDisplay.error_count == 1 else "errors"
warnings_or_warning = "warning" if WarningDisplay.warning_count == 1 else "warnings"
warnings_and_errors_message = (
" ({0} {1}, {2} {3}{4})".format(
WarningDisplay.error_count,
errors_or_error,
WarningDisplay.warning_count,
warnings_or_warning,
("; set --verbose for more" if not WarningDisplay.is_verbose else ""),
)
if WarningDisplay.has_encountered_errors() or WarningDisplay.has_encountered_warnings()
else ""
)
now = datetime.datetime.now()
time_difference = now - time_started_make
time_difference_in_seconds = time_difference / timedelta(seconds=1)
if WarningDisplay.has_displayed_messages():
# break line to separate next output
print()
print(
"[{0}] Finished in {1:.3f} seconds{2}".format(
"✔" if not WarningDisplay.has_encountered_errors() else "✖",
time_difference_in_seconds,
warnings_and_errors_message,
)
)
print()
# find the total size of the generated directory
generated_directory_size = pretty_size(directory_size(output_path))
if cards_total > 0:
# get the grammar right
pages_or_page = "pages" if pages_total > 1 else "page"
cards_or_card = "cards" if cards_total > 1 else "card"
if cards_total > cards_total_unique:
print(
"Generated {0} ({1} unique) {2} on {3} {4} ({5})\n{6}".format(
cards_total,
cards_total_unique,
cards_or_card,
pages_total,
pages_or_page,
generated_directory_size,
output_location_message,
)
)
else:
print(
"Generated {0} {1} on {2} {3} ({4})\n{5}".format(
cards_total,
cards_or_card,
pages_total,
pages_or_page,
generated_directory_size,
output_location_message,
)
)
else:
print("Generated 0 cards ({0})\n{1}".format(generated_directory_size, output_location_message))
print()
open_path(output_path)