fix: createWriteStream
failing to create new files in directories
#783
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This issue provides most of the context: #428
#428 suggests just to replace
fs.statSync(path)
withfs.statSync(dirname(path))
, but that could cause surprising behavior in the case where multiple filesystems include the parent directory.I've added a regression test for this case:
"createWriteStream writes to an existing file even if parent dir exists on an earlier fss"
Fixes #428