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"""Contains helper functions to compute checksums for LLVM checkouts.
"""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import logging
import os
import os.path
import sys
class LLVMProject(object):
"""An LLVM project with a descriptive name and a relative checkout path.
"""
def __init__(self, name, relpath):
self.name = name
self.relpath = relpath
def is_subproject(self, other_project):
""" Check if self is checked out as a subdirectory of other_project.
"""
return self.relpath.startswith(other_project.relpath)
def WalkProjectFiles(checkout_root, all_projects, project, visitor):
""" Walk over all files inside a project without recursing into subprojects, '.git' and '.svn' subfolders.
checkout_root: root of the LLVM checkout.
all_projects: projects in the LLVM checkout.
project: a project to walk the files of. Must be inside all_projects.
visitor: a function called on each visited file.
"""
assert project in all_projects
ignored_paths = set()
for other_project in all_projects:
if other_project != project and other_project.is_subproject(project):
ignored_paths.add(os.path.join(checkout_root, other_project.relpath))
def raise_error(err):
raise err
project_root = os.path.join(checkout_root, project.relpath)
for root, dirs, files in os.walk(project_root, onerror=raise_error):
dirs[:] = [
d for d in dirs
if d != ".svn" and d != ".git" and
os.path.join(root, d) not in ignored_paths
]
for f in files:
visitor(os.path.join(root, f))
def CreateLLVMProjects(single_tree_checkout):
"""Returns a list of LLVMProject instances, describing relative paths of a typical LLVM checkout.
Args:
single_tree_checkout:
When True, relative paths for each project points to a typical single
source tree checkout.
When False, relative paths for each projects points to a separate
directory. However, clang-tools-extra is an exception, its relative path
will always be 'clang/tools/extra'.
"""
# FIXME: cover all of llvm projects.
# Projects that reside inside 'projects/' in a single source tree checkout.
ORDINARY_PROJECTS = [
"compiler-rt", "dragonegg", "libcxx", "libcxxabi", "libunwind",
"parallel-libs", "test-suite"
]
# Projects that reside inside 'tools/' in a single source tree checkout.
TOOLS_PROJECTS = ["clang", "lld", "lldb"]
if single_tree_checkout:
projects = [LLVMProject("llvm", "")]
projects += [
LLVMProject(p, os.path.join("projects", p)) for p in ORDINARY_PROJECTS
]
projects += [
LLVMProject(p, os.path.join("tools", p)) for p in TOOLS_PROJECTS
]
projects.append(
LLVMProject("clang-tools-extra",
os.path.join("tools", "clang", "tools", "extra")))
else:
projects = [LLVMProject("llvm", "llvm")]
projects += [LLVMProject(p, p) for p in ORDINARY_PROJECTS]
projects += [LLVMProject(p, p) for p in TOOLS_PROJECTS]
projects.append(
LLVMProject("clang-tools-extra", os.path.join("clang", "tools",
"extra")))
return projects
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