112 lines
4 KiB
Python
112 lines
4 KiB
Python
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# MIT License
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#
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# Copyright The SCons Foundation
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be included
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# in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
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# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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import os
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import SCons.Node
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import SCons.Node.FS
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import SCons.Scanner
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from SCons.Util import flatten, is_String
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def _subst_paths(env, paths) -> list:
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"""Return a list of substituted path elements.
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If *paths* is a string, it is split on the search-path separator.
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Otherwise, substitution is done on string-valued list elements but
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they are not split.
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Note helps support behavior like pulling in the external ``CLASSPATH``
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and setting it directly into ``JAVACLASSPATH``, however splitting on
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``os.pathsep`` makes the interpretation system-specific (this is
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warned about in the manpage entry for ``JAVACLASSPATH``).
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"""
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if is_String(paths):
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paths = env.subst(paths)
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if SCons.Util.is_String(paths):
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paths = paths.split(os.pathsep)
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else:
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# TODO: may want to revisit splitting list-element strings if requested
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paths = flatten(paths)
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paths = [env.subst(path) if is_String(path) else path for path in paths]
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return paths
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def _collect_classes(classlist, dirname, files):
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for fname in files:
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if fname.endswith(".class"):
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classlist.append(os.path.join(str(dirname), fname))
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def scan(node, env, libpath=()) -> list:
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"""Scan for files both on JAVACLASSPATH and JAVAPROCESSORPATH.
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JAVACLASSPATH/JAVAPROCESSORPATH path can contain:
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- Explicit paths to JAR/Zip files
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- Wildcards (*)
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- Directories which contain classes in an unnamed package
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- Parent directories of the root package for classes in a named package
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Class path entries that are neither directories nor archives (.zip
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or JAR files) nor the asterisk (*) wildcard character are ignored.
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"""
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classpath = []
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for var in ['JAVACLASSPATH', 'JAVAPROCESSORPATH']:
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classpath += _subst_paths(env, env.get(var, []))
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result = []
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for path in classpath:
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if is_String(path) and "*" in path:
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# This matches more than the Java docs describe: a '*' only
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# matches jar files. The filter later should trim this down.
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# TODO: should we filter here? use .endswith('*') rather than "in"?
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libs = env.Glob(path)
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else:
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libs = [path]
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for lib in libs:
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if os.path.isdir(str(lib)):
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# grab the in-memory nodes
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env.Dir(lib).walk(_collect_classes, result)
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# now the on-disk ones
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for root, dirs, files in os.walk(str(lib)):
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_collect_classes(result, root, files)
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else:
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result.append(lib)
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return list(filter(lambda x: os.path.splitext(str(x))[1] in [".class", ".zip", ".jar"], result))
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def JavaScanner():
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"""Scanner for .java files.
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.. versionadded:: 4.4
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"""
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return SCons.Scanner.Base(scan, 'JavaScanner', skeys=['.java'])
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# Local Variables:
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# tab-width:4
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# indent-tabs-mode:nil
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# End:
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# vim: set expandtab tabstop=4 shiftwidth=4:
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