mirror of https://github.com/apache/kafka.git
32 lines
1.3 KiB
Python
32 lines
1.3 KiB
Python
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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def file_exists(node, file):
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"""Quick and dirty check for existence of remote file."""
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try:
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node.account.ssh("cat " + file, allow_fail=False)
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return True
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except:
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return False
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def line_count(node, file):
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"""Return the line count of file on node"""
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out = [line for line in node.account.ssh_capture("wc -l %s" % file)]
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if len(out) != 1:
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raise Exception("Expected single line of output from wc -l")
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return int(out[0].strip().split(" ")[0])
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