* Add more file i/o wrappers in platform_utils to allow using
long paths (length > MAX_PATH) on Windows.
* Paths using the long path syntax ("\\?\" prefix) should never
escape the platform_utils API surface area, so that this
specific syntax is not visible to the rest of the repo code base.
* Forward many calls from os.xxx to platform_utils.xxx in various place
to ensure long paths support, specifically when repo decides to delete
obsolete directories.
* There are more places that need to be converted to support long paths,
this commit is an initial effort to unblock a few common use cases.
* Also, fix remove function to handle directory symlinks
Change-Id: If82ccc408e516e96ff7260be25f8fd2fe3f9571a
os.remove raises an exception when deleting read-only files on
Windows. Replace all calls with calls to platform_utils.remove,
which deals with deals with that issue.
Change-Id: I4dc9e0c9a36b4238880520c69f5075eca40f3e66
os.rename fails on Windows if the destination exists, so replace
os.rename to platform_utils.rename which handles the platform
differences.
Change-Id: I15a86f10f65eedee5b003b80f88a0c28a3e1aa48
By default, shutil.rmtree raises an exception when deleting readonly
files on Windows.
Replace all shutil.rmtree with platform_utils.rmtree, which adds an
error handler to make files read-write when they can't be deleted.
Change-Id: I9cfea9a7b3703fb16a82cf69331540c2c179ed53
Replace all calls to os.symlink with platform_utils.symlink.
The Windows implementation calls into the CreateSymbolicLinkW Win32
API, as os.symlink is not supported.
Separate the Win32 API definitions into a separate module
platform_utils_win32 for clarity.
Change-Id: I0714c598664c2df93383734e609d948692c17ec5
Python on Windows does not support non blocking file operations.
To workaround this issue, we instead use Threads and a Queue to
simulate non-blocking calls. This is happens only when running
with the native Windows version of Python, meaning Linux and Cygwin
are not affected by this change.
Change-Id: I4ce23827b096c5138f67a85c721f58a12279bb6f
