62 lines
2.1 KiB
Plaintext
62 lines
2.1 KiB
Plaintext
# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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# Java detection
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# ========================================================
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option('--with-java-bin-path', nargs=1,
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help='Location of Java binaries (java, javac, jar)')
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@depends('--with-java-bin-path')
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@imports(_from='os', _import='environ')
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def java_search_paths(path):
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if path:
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# Look for javac and jar in the specified path.
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return path
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# With no path specified, look for javac and jar in $JAVA_HOME (if set)
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# and $PATH.
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if 'JAVA_HOME' in environ:
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return [os.path.join(environ['JAVA_HOME'], 'bin'),
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environ.get('PATH', '')]
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return [environ.get('PATH')]
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# Finds the given java tool, failing with a custom error message if we can't
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# find it.
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@template
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def check_java_tool(tool):
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check = check_prog(tool.upper(), (tool,), paths=java_search_paths,
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allow_missing=True)
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@depends(check)
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def require_tool(result):
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if result is None:
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die("The program %s was not found. Set $JAVA_HOME to your Java "
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"SDK directory or use '--with-java-bin-path={java-bin-dir}'"
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% tool)
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return result
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return require_tool
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check_java_tool('java')
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check_java_tool('javah')
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check_java_tool('jar')
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check_java_tool('jarsigner')
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check_java_tool('keytool')
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javac = check_java_tool('javac')
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@depends(javac)
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@checking('for javac version')
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@imports('subprocess')
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def javac_version(javac):
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try:
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output = subprocess.check_output([javac, '-version'],
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stderr=subprocess.STDOUT).rstrip()
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version = Version(output.split(' ')[-1])
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if version < '1.7':
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die('javac 1.7 or higher is required (found %s)' % version)
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return version
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except subprocess.CalledProcessError as e:
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die('Failed to get javac version: %s', e.output)
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