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https://github.com/c64scene-ar/llvm-6502.git
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df578254a1
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143621 91177308-0d34-0410-b5e6-96231b3b80d8
75 lines
3.1 KiB
Python
75 lines
3.1 KiB
Python
import pprint
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import os
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import componentinfo
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class LLVMProjectInfo(object):
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@staticmethod
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def load_infos_from_path(llvmbuild_source_root):
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# FIXME: Implement a simple subpath file list cache, so we don't restat
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# directories we have already traversed.
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# First, discover all the LLVMBuild.txt files.
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for dirpath,dirnames,filenames in os.walk(llvmbuild_source_root,
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followlinks = True):
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# If there is no LLVMBuild.txt file in a directory, we don't recurse
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# past it. This is a simple way to prune our search, although it
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# makes it easy for users to add LLVMBuild.txt files in places they
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# won't be seen.
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if 'LLVMBuild.txt' not in filenames:
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del dirnames[:]
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continue
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# Otherwise, load the LLVMBuild file in this directory.
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assert dirpath.startswith(llvmbuild_source_root)
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subpath = '/' + dirpath[len(llvmbuild_source_root)+1:]
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llvmbuild_path = os.path.join(dirpath, 'LLVMBuild.txt')
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for info in componentinfo.load_from_path(llvmbuild_path, subpath):
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yield info
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@staticmethod
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def load_from_path(source_root, llvmbuild_source_root):
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infos = list(
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LLVMProjectInfo.load_infos_from_path(llvmbuild_source_root))
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return LLVMProjectInfo(source_root, infos)
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def __init__(self, source_root, component_infos):
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self.source_root = source_root
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self.component_infos = component_infos
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def main():
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from optparse import OptionParser, OptionGroup
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parser = OptionParser("usage: %prog [options]")
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parser.add_option("", "--source-root", dest="source_root", metavar="PATH",
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help="Path to the LLVM source (inferred if not given)",
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action="store", default=None)
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parser.add_option(
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"", "--llvmbuild-source-root", dest="llvmbuild_source_root",
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help="If given, an alternate path to search for LLVMBuild.txt files",
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action="store", default=None, metavar="PATH")
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(opts, args) = parser.parse_args()
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# Determine the LLVM source path, if not given.
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source_root = opts.source_root
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if source_root:
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if not os.path.exists(os.path.join(source_root, 'lib', 'VMCore',
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'Function.cpp')):
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parser.error('invalid LLVM source root: %r' % source_root)
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else:
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llvmbuild_path = os.path.dirname(__file__)
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llvm_build_path = os.path.dirname(llvmbuild_path)
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utils_path = os.path.dirname(llvm_build_path)
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source_root = os.path.dirname(utils_path)
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if not os.path.exists(os.path.join(source_root, 'lib', 'VMCore',
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'Function.cpp')):
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parser.error('unable to infer LLVM source root, please specify')
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# Construct the LLVM project information.
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llvmbuild_source_root = opts.llvmbuild_source_root or source_root
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project_info = LLVMProjectInfo.load_from_path(
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source_root, llvmbuild_source_root)
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if __name__=='__main__':
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main()
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