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# Copyright (C) 2025 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import sys
from typing import List
from command import Command
from error import GitError
from error import RepoExitError
import platform_utils
from project import DeleteWorktreeError
class Error(RepoExitError):
"""Exit error when wipe command fails."""
class Wipe(Command):
"""Delete projects from the worktree and .repo"""
COMMON = True
helpSummary = "Wipe projects from the worktree"
helpUsage = """
%prog <project>...
"""
helpDescription = """
The '%prog' command removes the specified projects from the worktree
(the checked out source code) and deletes the project's git data from `.repo`.
This is a destructive operation and cannot be undone.
Projects can be specified either by name, or by a relative or absolute path
to the project's local directory.
Examples:
# Wipe the project "platform/build" by name:
$ repo wipe platform/build
# Wipe the project at the path "build/make":
$ repo wipe build/make
"""
def _Options(self, p):
# TODO(crbug.com/gerrit/393383056): Add --broken option to scan and
# wipe broken projects.
p.add_option(
"-f",
"--force",
action="store_true",
help="force wipe shared projects and uncommitted changes",
)
p.add_option(
"--force-uncommitted",
action="store_true",
help="force wipe even if there are uncommitted changes",
)
p.add_option(
"--force-shared",
action="store_true",
help="force wipe even if the project shares an object directory",
)
def ValidateOptions(self, opt, args: List[str]):
if not args:
self.Usage()
def Execute(self, opt, args: List[str]):
# Get all projects to handle shared object directories.
all_projects = self.GetProjects(None, all_manifests=True, groups="all")
projects_to_wipe = self.GetProjects(args, all_manifests=True)
relpaths_to_wipe = {p.relpath for p in projects_to_wipe}
# Build a map from objdir to the relpaths of projects that use it.
objdir_map = {}
for p in all_projects:
objdir_map.setdefault(p.objdir, set()).add(p.relpath)
uncommitted_projects = []
shared_objdirs = {}
objdirs_to_delete = set()
for project in projects_to_wipe:
if project == self.manifest.manifestProject:
raise Error(
f"error: cannot wipe the manifest project: {project.name}"
)
try:
if project.HasChanges():
uncommitted_projects.append(project.name)
except GitError:
uncommitted_projects.append(f"{project.name} (corrupted)")
users = objdir_map.get(project.objdir, {project.relpath})
is_shared = not users.issubset(relpaths_to_wipe)
if is_shared:
shared_objdirs.setdefault(project.objdir, set()).update(users)
else:
objdirs_to_delete.add(project.objdir)
block_uncommitted = uncommitted_projects and not (
opt.force or opt.force_uncommitted
)
block_shared = shared_objdirs and not (opt.force or opt.force_shared)
if block_uncommitted or block_shared:
error_messages = []
if block_uncommitted:
error_messages.append(
"The following projects have uncommitted changes or are "
"corrupted:\n"
+ "\n".join(f" - {p}" for p in sorted(uncommitted_projects))
)
if block_shared:
shared_dir_messages = []
for objdir, users in sorted(shared_objdirs.items()):
other_users = users - relpaths_to_wipe
projects_to_wipe_in_dir = users & relpaths_to_wipe
message = f"""Object directory {objdir} is shared by:
Projects to be wiped: {', '.join(sorted(projects_to_wipe_in_dir))}
Projects not to be wiped: {', '.join(sorted(other_users))}"""
shared_dir_messages.append(message)
error_messages.append(
"The following projects have shared object directories:\n"
+ "\n".join(sorted(shared_dir_messages))
)
if block_uncommitted and block_shared:
error_messages.append(
"Use --force to wipe anyway, or --force-uncommitted and "
"--force-shared to specify."
)
elif block_uncommitted:
error_messages.append("Use --force-uncommitted to wipe anyway.")
else:
error_messages.append("Use --force-shared to wipe anyway.")
raise Error("\n\n".join(error_messages))
# If we are here, either there were no issues, or --force was used.
# Proceed with wiping.
successful_wipes = set()
for project in projects_to_wipe:
try:
# Force the delete here since we've already performed our
# own safety checks above.
project.DeleteWorktree(force=True, verbose=opt.verbose)
successful_wipes.add(project.relpath)
except DeleteWorktreeError as e:
print(
f"error: failed to wipe {project.name}: {e}",
file=sys.stderr,
)
# Clean up object directories only if all projects using them were
# successfully wiped.
for objdir in objdirs_to_delete:
users = objdir_map.get(objdir, set())
# Check if every project that uses this objdir has been
# successfully processed. If a project failed to be wiped, don't
# delete the object directory, or we'll corrupt the remaining
# project.
if users.issubset(successful_wipes):
if os.path.exists(objdir):
if opt.verbose:
print(
f"Deleting objects directory: {objdir}",
file=sys.stderr,
)
platform_utils.rmtree(objdir)
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