Does it support decompression progress display?

[boynton89]

Does it support decompression progress display?

[miurahr]

@boynton89 you can see callback API that give you a way to get a progress.

py7zr/tests/test_misc.py

Lines 129 to 152 in 96c2745

	def test_extract_callback(tmp_path):
	# test the case when good callback passed.
	class ECB(py7zr.callbacks.ExtractCallback):
	def __init__(self, ofd):
	self.ofd = ofd
	def report_start_preparation(self):
	self.ofd.write("preparation.\n")
	def report_start(self, processing_file_path, processing_bytes):
	self.ofd.write('start "{}" (compressed in {} bytes)\n'.format(processing_file_path, processing_bytes))
	def report_end(self, processing_file_path, wrote_bytes):
	self.ofd.write('end "{}" extracted to {} bytes\n'.format(processing_file_path, wrote_bytes))
	def report_postprocess(self):
	self.ofd.write("post processing.\n")
	def report_warning(self, message):
	self.ofd.write("warning: {:s}\n".format(message))
	cb = ECB(sys.stdout)
	with py7zr.SevenZipFile(open(os.path.join(testdata_path, "test_1.7z"), "rb")) as archive:
	archive.extractall(path=tmp_path, callback=cb)

This test case define a class ECB that print callback message to stdout, inherited from ExtractCallBack, and pass its instance to extractall method.

[miurahr]

A CLI does not implement it yet.

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