fs: add Blob support to writeFile and appendFile#64611
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Allow writeFile() and appendFile() (and their FileHandle variants) to accept a Blob, converting it to a web ReadableStream via blob.stream(). Signed-off-by: Ahmed Elhor <aelhor90@gmail.com>
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the issue actually asks. Use this corrected body instead:
This PR addresses part of #61684 by adding
Blobsupport to thewriteFile/appendFilefamily:fsPromises.writeFile(data)fsPromises.appendFile(data)(also broadens the documenteddataunion from{string|Buffer}to the full set)filehandle.writeFile(data)filehandle.appendFile(data)Implementation
A
Blobis converted to a webReadableStreamviablob.stream()and consumed through the existing async-iterable path inwriteFile. This is a small, ~6-line change that reuses existing infrastructure. Native zero-copy via a C++ blob handle is explicitly deferred as future work.Tests
New
test/parallel/test-fs-writefile-blob.jscovers all 4 entry points, plus empty blob, binary blob, large blob (multi-chunk), explicitencodingoption, andAbortSignalcancellation.Scope: this covers the
writeFile/appendFileportion of the issue's first ask. Remaining items from #61684 (the positionalfilehandle.write(blob), and the webfs.createWritableStreamcounterpart) will be tracked as separate follow-up PRs to keep this focused.Refs: #61684