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support larger backup files

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Peter D. Gray 2024-03-29 09:35:26 -04:00
parent ad8626b1eb
commit de12eb6c4a
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1 changed files with 4 additions and 6 deletions
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shared/backups.py
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@ -17,7 +17,8 @@ from pincodes import pa
num_pw_words = const(12)
# max size we expect for a backup data file (encrypted or cleartext)
MAX_BACKUP_FILE_SIZE = const(10000) # bytes
# - limited by size of LFS area of flash, since all settings are held there
MAX_BACKUP_FILE_SIZE = const(128*1024) # bytes
def render_backup_contents(bypass_tmp=False):
# simple text format:
@ -412,21 +413,18 @@ async def write_complete_backup(words, fname_pattern, write_sflash=False,
hdr, footer = zz.save(fname)
filesize = len(body) + MAX_BACKUP_FILE_SIZE
del body
gc.collect()
else:
# cleartext dump
zz = None
filesize = len(body)+10
if write_sflash:
# for use over USB and unit testing: commit file into SPI flash
# for use over USB and unit testing: commit file into PSRAM
from sffile import SFFile
with SFFile(0, max_size=filesize, message='Saving...') as fd:
with SFFile(0, max_size=MAX_BACKUP_FILE_SIZE, message='Saving...') as fd:
await fd.erase()
if zz: