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39 lines
1.5 KiB
39 lines
1.5 KiB
# 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 path_exists(node, path): |
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"""Quick and dirty check for existence of remote path.""" |
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try: |
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node.account.ssh("ls " + path, 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]) |