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# Copyright 2020 MongoDB Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
import SCons
import os
import os.path as ospath
import subprocess
import shutil
import tarfile
import time
import zipfile
import io
from distutils.spawn import find_executable
__distsrc_callbacks = []
class DistSrcFile:
def __init__(self, **kwargs):
[setattr(self, key, val) for (key, val) in list(kwargs.items())]
def __str__(self):
return self.name
class DistSrcArchive:
def __init__(self, archive_type, archive_file, filename, mode):
self.archive_type = archive_type
self.archive_file = archive_file
self.archive_name = filename
self.archive_mode = mode
@staticmethod
def Open(filename):
if filename.endswith("tar"):
return DistSrcTarArchive(
"tar",
tarfile.open(filename, "r", format=tarfile.PAX_FORMAT),
filename,
"r",
)
elif filename.endswith("zip"):
return DistSrcZipArchive(
"zip", zipfile.ZipFile(filename, "a"), filename, "a",
)
def close(self):
self.archive_file.close()
class DistSrcTarArchive(DistSrcArchive):
def __iter__(self):
file_list = self.archive_file.getnames()
for name in file_list:
yield name
def __getitem__(self, key):
item_data = self.archive_file.getmember(key)
return DistSrcFile(
name=key,
size=item_data.size,
mtime=item_data.mtime,
mode=item_data.mode,
type=item_data.type,
uid=item_data.uid,
gid=item_data.gid,
uname=item_data.uname,
gname=item_data.uname,
)
def append_file_contents(
self,
filename,
file_contents,
mtime=None,
mode=0o644,
uname="root",
gname="root",
):
if mtime is None:
mtime = time.time()
file_metadata = tarfile.TarInfo(name=filename)
file_metadata.mtime = mtime
file_metadata.mode = mode
file_metadata.uname = uname
file_metadata.gname = gname
file_metadata.size = len(file_contents)
file_buf = io.BytesIO(file_contents.encode("utf-8"))
if self.archive_mode == "r":
self.archive_file.close()
self.archive_file = tarfile.open(
self.archive_name, "a", format=tarfile.PAX_FORMAT,
)
self.archive_mode = "a"
self.archive_file.addfile(file_metadata, fileobj=file_buf)
def append_file(self, filename, localfile):
self.archive_file.add(localfile, arcname=filename)
class DistSrcZipArchive(DistSrcArchive):
def __iter__(self):
file_list = self.archive_file.namelist()
for name in file_list:
yield name
def __getitem__(self, key):
item_data = self.archive_file.getinfo(key)
fixed_time = item_data.date_time + (0, 0, 0)
is_dir = key.endswith("/")
return DistSrcFile(
name=key,
size=item_data.file_size,
mtime=time.mktime(fixed_time),
mode=0o775 if is_dir else 0o664,
type=tarfile.DIRTYPE if is_dir else tarfile.REGTYPE,
uid=0,
gid=0,
uname="root",
gname="root",
)
def append_file_contents(
self,
filename,
file_contents,
mtime=None,
mode=0o644,
uname="root",
gname="root",
):
if mtime is None:
mtime = time.time()
self.archive_file.writestr(filename, file_contents)
def append_file(self, filename, localfile):
self.archive_file.write(localfile, arcname=filename)
def build_error_action(msg):
def error_stub(target=None, source=None, env=None):
print(msg)
env.Exit(1)
return [error_stub]
def distsrc_action_generator(source, target, env, for_signature):
# This is done in two stages because env.WhereIs doesn't seem to work
# correctly on Windows, but we still want to be able to override the PATH
# using the env.
git_path = env.WhereIs("git")
if not git_path:
git_path = find_executable("git")
if not git_path:
return build_error_action("Could not find git - cannot create distsrc archive")
def run_distsrc_callbacks(target=None, source=None, env=None):
archive_wrapper = DistSrcArchive.Open(str(target[0]))
for fn in __distsrc_callbacks:
fn(env, archive_wrapper)
archive_wrapper.close()
target_ext = str(target[0])[-3:]
if not target_ext in ["zip", "tar"]:
print("Invalid file format for distsrc. Must be tar or zip file")
env.Exit(1)
git_cmd = (
'"%s" archive --format %s --output %s --prefix ${MONGO_DIST_SRC_PREFIX} HEAD'
% (git_path, target_ext, target[0])
)
return [
SCons.Action.Action(git_cmd, "Running git archive for $TARGET"),
SCons.Action.Action(
run_distsrc_callbacks, "Running distsrc callbacks for $TARGET"
),
]
def add_callback(env, fn):
__distsrc_callbacks.append(fn)
def generate(env, **kwargs):
env.AddMethod(add_callback, "AddDistSrcCallback")
env["BUILDERS"]["__DISTSRC"] = SCons.Builder.Builder(
generator=distsrc_action_generator,
)
def DistSrc(env, target, **kwargs):
result = env.__DISTSRC(target=target, source=[], **kwargs)
env.AlwaysBuild(result)
env.NoCache(result)
return result
env.AddMethod(DistSrc, "DistSrc")
def exists(env):
return True
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