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# SPDX-License-Identifier: MIT
#
# Copyright The SCons Foundation
"""
Actions to zip and unzip, for working with SCons release bundles.
Action for creating a zipapp.
"""
import os.path
import zipfile
import zipapp
def zipit(env, target, source):
"""Action function to zip *source* into *target*
Values extracted from *env*:
*CD*: the directory to work in
*PSV*: the directory name to walk down to find the files
"""
print(f"Zipping {target[0]}:")
def visit(arg, dirname, filenames):
for filename in filenames:
path = os.path.join(dirname, filename)
if os.path.isfile(path):
arg.write(path)
# default ZipFile compression is ZIP_STORED
zf = zipfile.ZipFile(str(target[0]), 'w', compression=zipfile.ZIP_DEFLATED)
olddir = os.getcwd()
os.chdir(env.Dir(env['CD']).abspath)
try:
for dirname, dirnames, filenames in os.walk(env['PSV']):
visit(zf, dirname, filenames)
finally:
os.chdir(olddir)
zf.close()
def unzipit(env, target, source):
"""Action function to unzip *source*"""
print(f"Unzipping {source[0]}:")
zf = zipfile.ZipFile(str(source[0]), 'r')
for name in zf.namelist():
dest = os.path.join(env['UNPACK_ZIP_DIR'], name)
dir = os.path.dirname(dest)
os.makedirs(dir, exist_ok=True)
print(dest, name)
# if the file exists, then delete it before writing
# to it so that we don't end up trying to write to a symlink:
if os.path.isfile(dest) or os.path.islink(dest):
os.unlink(dest)
if not os.path.isdir(dest):
with open(dest, 'wb') as fp:
fp.write(zf.read(name))
def zipappit(env, target, source):
"""Action function to Create a zipapp *target* from specified directory.
Values extracted from *env*:
*CD*: the Dir node for the place we want to work.
*PSV*: the directory name to point :meth:`zipapp.create_archive` at
(note *source* is unused here in favor of PSV)
*main*: the entry point for the zipapp
"""
print(f"Creating zipapp {target[0]}:")
dest = target[0].abspath
olddir = os.getcwd()
os.chdir(env['CD'].abspath)
try:
zipapp.create_archive(
source=env['PSV'],
target=dest,
main=env['entry'],
interpreter="/usr/bin/env python",
)
finally:
os.chdir(olddir)
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