Fix handling empty input

codearchiver/subprocess.py

@@ -20,17 +20,17 @@ def run_with_log(args, *, check = True, input = None, **kwargs):
 	if badKwargs:
 		raise ValueError(f'Disallowed kwargs: {", ".join(sorted(badKwargs))}')
 	_logger.info(f'Running subprocess: {args!r}')
-	if input:
+	if input is not None:
 		kwargs['stdin'] = subprocess.PIPE
 	p = subprocess.Popen(args, **kwargs, stdout = subprocess.PIPE, stderr = subprocess.PIPE)
 	sel = selectors.DefaultSelector()
-	if input:
+	if input is not None:
 		sel.register(p.stdin, selectors.EVENT_WRITE)
 	sel.register(p.stdout, selectors.EVENT_READ)
 	sel.register(p.stderr, selectors.EVENT_READ)
 	stdout = []
 	stderrBuf = b''
-	if input:
+	if input is not None:
 		stdinView = memoryview(input)
 		stdinOffset = 0
 		PIPE_BUF = getattr(select, 'PIPE_BUF', 512)
@@ -65,7 +65,7 @@ def run_with_log(args, *, check = True, input = None, **kwargs):
 	if stderrBuf:
 		_logger.info(stderrBuf.decode('utf-8'))
 	assert p.poll() is not None
-	if input and stdinOffset < len(input):
+	if input is not None and stdinOffset < len(input):
 		_logger.warning(f'Could not write all input to the stdin pipe (wanted to write {len(input)} bytes, only wrote {stdinOffset})')
 	_logger.info(f'Process exited with status {p.returncode}')
 	if check and p.returncode != 0: