mirror of
https://github.com/retspen/webvirtcloud
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5ef3437291
- A failed login writes the name it was tried with, as typed: a control character in it made every download holding that row fail, as the workbook cannot hold one. Workbooks now write it as \x01; the VM report shares the code. - A download held every matching row in memory: it now takes the newest 100000, and its About sheet says when the search should be narrowed.
41 lines
1.6 KiB
Python
41 lines
1.6 KiB
Python
"""An Excel workbook: rows under a bold, filterable header, and a sheet of notes."""
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from io import BytesIO
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from openpyxl import Workbook
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from openpyxl.cell.cell import ILLEGAL_CHARACTERS_RE
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from openpyxl.styles import Font
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from openpyxl.utils import get_column_letter
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MAX_WIDTH = 60
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def workbook(title, header, rows, notes_title, notes):
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"""The .xlsx file's bytes. Every text cell stays text: openpyxl would
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write one starting with "=" as a formula, and the text comes from VM
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names and guests."""
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book = Workbook()
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sheet = book.active
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sheet.title = title
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for values in [header, *rows]:
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# a control character (a name typed at a failed login) cannot be in the file: written as \x01
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sheet.append([ILLEGAL_CHARACTERS_RE.sub(lambda m: f"\\x{ord(m.group()):02x}", value)
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if isinstance(value, str) else value for value in values])
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for row in sheet.iter_rows():
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for cell in row:
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if isinstance(cell.value, str):
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cell.data_type = "s"
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for cell in sheet[1]:
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cell.font = Font(bold=True)
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sheet.freeze_panes = "A2"
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sheet.auto_filter.ref = sheet.dimensions
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for index, column in enumerate(sheet.columns, start=1):
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width = max(len(str(cell.value or "")) for cell in column) + 2
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sheet.column_dimensions[get_column_letter(index)].width = min(width, MAX_WIDTH)
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notes_sheet = book.create_sheet(notes_title)
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for line in notes:
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notes_sheet.append([line])
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notes_sheet.column_dimensions["A"].width = MAX_WIDTH * 2
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out = BytesIO()
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book.save(out)
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return out.getvalue()
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