def create_isolate_tree(outdir, root_dir, files, relative_cwd, read_only):
"""Creates a isolated tree usable for test execution.
Returns the current working directory where the isolated command should be
started in.
"""
# Forcibly copy when the tree has to be read only. Otherwise the inode is
# modified, and this cause real problems because the user's source tree
# becomes read only. On the other hand, the cost of doing file copy is huge.
if read_only not in (0, None):
action = file_path.COPY
else:
action = file_path.HARDLINK_WITH_FALLBACK
recreate_tree(outdir=outdir,
indir=root_dir,
infiles=files,
action=action,
as_hash=False)
cwd = os.path.normpath(os.path.join(outdir, relative_cwd))
# cwd may not exist when no files are mapped from the directory containing the
# .isolate file. But the directory must exist to be the current working
# directory.
file_path.ensure_tree(cwd)
run_isolated.change_tree_read_only(outdir, read_only)
return cwd
def create_isolate_tree(outdir, root_dir, files, relative_cwd, read_only):
"""Creates a isolated tree usable for test execution.
Returns the current working directory where the isolated command should be
started in.
"""
# Forcibly copy when the tree has to be read only. Otherwise the inode is
# modified, and this cause real problems because the user's source tree
# becomes read only. On the other hand, the cost of doing file copy is huge.
if read_only not in (0, None):
action = file_path.COPY
else:
action = file_path.HARDLINK_WITH_FALLBACK
recreate_tree(
outdir=outdir,
indir=root_dir,
infiles=files,
action=action,
as_hash=False)
cwd = os.path.normpath(os.path.join(outdir, relative_cwd))
if not os.path.isdir(cwd):
# It can happen when no files are mapped from the directory containing the
# .isolate file. But the directory must exist to be the current working
# directory.
os.makedirs(cwd)
run_isolated.change_tree_read_only(outdir, read_only)
return cwd
