59 lines
2.1 KiB
Python
59 lines
2.1 KiB
Python
# 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])
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def java_version(node):
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# Determine java version on the node
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version = -1
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for line in node.account.ssh_capture("java -version"):
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if line.find("version") != -1:
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version = parse_version_str(line)
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return version
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def parse_version_str(line):
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# Parse java version string. Examples:
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#`openjdk version "11.0.5" 2019-10-15` will return 11.
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#`java version "1.5.0"` will return 5.
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line = line[line.find('version \"') + 9:]
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dot_pos = line.find(".")
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if line[:dot_pos] == "1":
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return int(line[dot_pos+1:line.find(".", dot_pos+1)])
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else:
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return int(line[:dot_pos])
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