sandbox: Remove unused _mounter.py

2 files changed, 0 insertions, 200 deletions

diff --git a/src/buildstream/sandbox/_mounter.py b/src/buildstream/sandbox/_mounter.py
deleted file mode 100644
index 3adf8ff5b..000000000
--- a/src/buildstream/sandbox/_mounter.py
+++ /dev/null
@@ -1,148 +0,0 @@
-#
-#  Copyright (C) 2017 Codethink Limited
-#
-#  This program is free software; you can redistribute it and/or
-#  modify it under the terms of the GNU Lesser General Public
-#  License as published by the Free Software Foundation; either
-#  version 2 of the License, or (at your option) any later version.
-#
-#  This library is distributed in the hope that it will be useful,
-#  but WITHOUT ANY WARRANTY; without even the implied warranty of
-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
-#  Lesser General Public License for more details.
-#
-#  You should have received a copy of the GNU Lesser General Public
-#  License along with this library. If not, see <http://www.gnu.org/licenses/>.
-#
-#  Authors:
-#        Tristan Maat <tristan.maat@codethink.co.uk>
-
-import sys
-from contextlib import contextmanager
-
-from .._exceptions import SandboxError
-from .. import utils, _signals
-
-
-# A class to wrap the `mount` and `umount` system commands
-class Mounter:
-    @classmethod
-    def _mount(cls, dest, src=None, mount_type=None, stdout=None, stderr=None, options=None, flags=None):
-
-        if stdout is None:
-            stdout = sys.stdout
-        if stderr is None:
-            stderr = sys.stderr
-
-        argv = [utils.get_host_tool("mount")]
-        if mount_type:
-            argv.extend(["-t", mount_type])
-        if options:
-            argv.extend(["-o", options])
-        if flags:
-            argv.extend(flags)
-
-        if src is not None:
-            argv += [src]
-        argv += [dest]
-
-        status, _ = utils._call(argv, terminate=True, stdout=stdout, stderr=stderr)
-
-        if status != 0:
-            raise SandboxError("`{}` failed with exit code {}".format(" ".join(argv), status))
-
-        return dest
-
-    @classmethod
-    def _umount(cls, path, stdout=None, stderr=None):
-        if stdout is None:
-            stdout = sys.stdout
-        if stderr is None:
-            stderr = sys.stderr
-
-        cmd = [utils.get_host_tool("umount"), "-R", path]
-        status, _ = utils._call(cmd, terminate=True, stdout=stdout, stderr=stderr)
-
-        if status != 0:
-            raise SandboxError("`{}` failed with exit code {}".format(" ".join(cmd), status))
-
-    # mount()
-    #
-    # A wrapper for the `mount` command. The device is unmounted when
-    # the context is left.
-    #
-    # Args:
-    #     dest (str) - The directory to mount to
-    #     src (str) - The directory to mount
-    #     stdout (file) - stdout
-    #     stderr (file) - stderr
-    #     mount_type (str|None) - The mount type (can be omitted or None)
-    #     kwargs - Arguments to pass to the mount command, such as `ro=True`
-    #
-    # Yields:
-    #     (str) The path to the destination
-    #
-    @classmethod
-    @contextmanager
-    def mount(cls, dest, src=None, stdout=None, stderr=None, mount_type=None, **kwargs):
-        if stdout is None:
-            stdout = sys.stdout
-        if stderr is None:
-            stderr = sys.stderr
-
-        def kill_proc():
-            cls._umount(dest, stdout, stderr)
-
-        options = ",".join([key for key, val in kwargs.items() if val])
-
-        path = cls._mount(dest, src, mount_type, stdout=stdout, stderr=stderr, options=options)
-        try:
-            with _signals.terminator(kill_proc):
-                yield path
-        finally:
-            cls._umount(dest, stdout, stderr)
-
-    # bind_mount()
-    #
-    # Mount a directory to a different location (a hardlink for all
-    # intents and purposes). The directory is unmounted when the
-    # context is left.
-    #
-    # Args:
-    #     dest (str) - The directory to mount to
-    #     src (str) - The directory to mount
-    #     stdout (file) - stdout
-    #     stderr (file) - stderr
-    #     kwargs - Arguments to pass to the mount command, such as `ro=True`
-    #
-    # Yields:
-    #     (str) The path to the destination
-    #
-    # While this is equivalent to `mount --rbind`, this option may not
-    # exist and can be dangerous, requiring careful cleanupIt is
-    # recommended to use this function over a manual mount invocation.
-    #
-    @classmethod
-    @contextmanager
-    def bind_mount(cls, dest, src=None, stdout=None, stderr=None, **kwargs):
-        if stdout is None:
-            stdout = sys.stdout
-        if stderr is None:
-            stderr = sys.stderr
-
-        def kill_proc():
-            cls._umount(dest, stdout, stderr)
-
-        kwargs["rbind"] = True
-        options = ",".join([key for key, val in kwargs.items() if val])
-
-        path = cls._mount(dest, src, None, stdout, stderr, options)
-
-        try:
-            with _signals.terminator(kill_proc):
-                # Make the rbind a slave to avoid unmounting vital devices in
-                # /proc
-                cls._mount(dest, flags=["--make-rslave"])
-                yield path
-        finally:
-            cls._umount(dest, stdout, stderr)
diff --git a/tests/sandboxes/mounting/mount_simple.py b/tests/sandboxes/mounting/mount_simple.py
deleted file mode 100644
index 0e78a5603..000000000
--- a/tests/sandboxes/mounting/mount_simple.py
+++ /dev/null
@@ -1,52 +0,0 @@
-import os
-import tempfile
-from contextlib import ExitStack
-
-import pytest
-
-from buildstream.sandbox._mounter import Mounter
-
-
-@pytest.mark.skipif(not os.geteuid() == 0, reason="requires root permissions")
-def test_bind_mount():
-    with ExitStack() as stack:
-        src = stack.enter_context(tempfile.TemporaryDirectory())
-        target = stack.enter_context(tempfile.TemporaryDirectory())
-
-        with open(os.path.join(src, "test"), "a") as test:
-            test.write("Test")
-
-        with Mounter.bind_mount(target, src) as dest:
-            # Ensure we get the correct path back
-            assert dest == target
-
-            # Ensure we can access files from src from target
-            with open(os.path.join(target, "test"), "r") as test:
-                assert test.read() == "Test"
-
-        # Ensure the files from src are gone from target
-        with pytest.raises(FileNotFoundError):
-            with open(os.path.join(target, "test"), "r"):
-                # Actual contents don't matter
-                pass
-
-        # Ensure the files in src are still in src
-        with open(os.path.join(src, "test"), "r") as test:
-            assert test.read() == "Test"
-
-
-@pytest.mark.skipif(not os.geteuid() == 0, reason="requires root permissions")
-def test_mount_proc():
-    with ExitStack() as stack:
-        src = "/proc"
-        target = stack.enter_context(tempfile.TemporaryDirectory())
-
-        with Mounter.mount(target, src, mount_type="proc", ro=True) as dest:
-            # Ensure we get the correct path back
-            assert dest == target
-
-            # Ensure /proc is actually mounted
-            assert os.listdir(src) == os.listdir(target)
-
-        # Ensure /proc is unmounted correctly
-        assert os.listdir(target) == []