Commit Graph

5 Commits

Author SHA1 Message Date
Alex Lorenz a171f6c9e1 [FileCollector] test: disable the directory entry collection checks on windows
Looks like one of the entries isn't found on windows. I'm investigating why.
In the meantime, I'll disable this part of the test on windows.

llvm-svn: 367280
2019-07-30 00:27:33 +00:00
Alex Lorenz 9e38f4d973 [FileCollector] Add a VFS that records FS accesses using the FileCollector
This patch adds a VFS that can be overlaid on top of another VFS
to record file system accesses using the FileCollector.
This can help to gather files that are needed for reproducers.

Differential Revision: https://reviews.llvm.org/D65411

llvm-svn: 367278
2019-07-29 23:38:30 +00:00
Alex Lorenz b680422ef8 [FileCollector] add support for recording empty directories
The file collector class is useful for constructing reproducers by
creating a snapshot of the files that are accessed. Sometimes it might
also be important to construct directories that don't necessarily have files,
but are still accessed by some tool that we want to make a reproducer for.
This is useful for instance for modeling the behavior of Clang's header search,
which scans through a number of directories it doesn't actually access when
looking for framework headers. This commit extends the file collector to allow
it to work with paths that are just directories, by constructing them as the
files are copied over.

Differential Revision: https://reviews.llvm.org/D65297

llvm-svn: 367061
2019-07-25 21:47:11 +00:00
Jonas Devlieghere 3e4e0478bb [FileCollector] Update unit test to match coding style.
I changed the FileCollector coding style but didn't update the
corresponding unit test.

llvm-svn: 366973
2019-07-25 00:46:58 +00:00
Alex Lorenz 86814bf658 [Support] move FileCollector from LLDB to llvm/Support
The file collector class is useful for creating reproducers,
not just for LLDB, but for other tools as well in LLVM/Clang.

Differential Revision: https://reviews.llvm.org/D65237

llvm-svn: 366956
2019-07-24 22:59:20 +00:00