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# Copyright 2016, 2023 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
import subprocess
import sys
import portage
from portage import os
from portage import _unicode_decode
from portage.const import PORTAGE_PYM_PATH, USER_CONFIG_PATH
from portage.process import find_binary
from portage.tests import TestCase
from portage.tests.resolver.ResolverPlayground import ResolverPlayground
from portage.util import ensure_dirs
class BlockerFileCollisionEmergeTestCase(TestCase):
def testBlockerFileCollision(self):
debug = False
install_something = """
S="${WORKDIR}"
src_install() {
einfo "installing something..."
insinto /usr/lib
echo "${PN}" > "${T}/file-collision"
doins "${T}/file-collision"
}
"""
ebuilds = {
"dev-libs/A-1": {
"EAPI": "6",
"MISC_CONTENT": install_something,
"RDEPEND": "!dev-libs/B",
},
"dev-libs/B-1": {
"EAPI": "6",
"MISC_CONTENT": install_something,
"RDEPEND": "!dev-libs/A",
},
}
playground = ResolverPlayground(ebuilds=ebuilds, debug=debug)
settings = playground.settings
eprefix = settings["EPREFIX"]
eroot = settings["EROOT"]
var_cache_edb = os.path.join(eprefix, "var", "cache", "edb")
user_config_dir = os.path.join(eprefix, USER_CONFIG_PATH)
portage_python = portage._python_interpreter
emerge_cmd = (
portage_python,
"-b",
"-Wd",
os.path.join(str(self.bindir), "emerge"),
)
file_collision = os.path.join(eroot, "usr/lib/file-collision")
test_commands = (
emerge_cmd
+ (
"--oneshot",
"dev-libs/A",
),
(lambda: portage.util.grablines(file_collision) == ["A\n"],),
emerge_cmd
+ (
"--oneshot",
"dev-libs/B",
),
(lambda: portage.util.grablines(file_collision) == ["B\n"],),
emerge_cmd
+ (
"--oneshot",
"dev-libs/A",
),
(lambda: portage.util.grablines(file_collision) == ["A\n"],),
({"FEATURES": "parallel-install"},)
+ emerge_cmd
+ (
"--oneshot",
"dev-libs/B",
),
(lambda: portage.util.grablines(file_collision) == ["B\n"],),
({"FEATURES": "parallel-install"},)
+ emerge_cmd
+ (
"-Cq",
"dev-libs/B",
),
(lambda: not os.path.exists(file_collision),),
)
fake_bin = os.path.join(eprefix, "bin")
portage_tmpdir = os.path.join(eprefix, "var", "tmp", "portage")
profile_path = settings.profile_path
path = settings.get("PATH")
if path is not None and not path.strip():
path = None
if path is None:
path = ""
else:
path = ":" + path
path = fake_bin + path
pythonpath = os.environ.get("PYTHONPATH")
if pythonpath is not None and not pythonpath.strip():
pythonpath = None
if pythonpath is not None and pythonpath.split(":")[0] == PORTAGE_PYM_PATH:
pass
else:
if pythonpath is None:
pythonpath = ""
else:
pythonpath = ":" + pythonpath
pythonpath = PORTAGE_PYM_PATH + pythonpath
env = {
"PORTAGE_OVERRIDE_EPREFIX": eprefix,
"PATH": path,
"PORTAGE_PYTHON": portage_python,
"PORTAGE_REPOSITORIES": settings.repositories.config_string(),
"PYTHONDONTWRITEBYTECODE": os.environ.get("PYTHONDONTWRITEBYTECODE", ""),
"PYTHONPATH": pythonpath,
"PORTAGE_INST_GID": str(os.getgid()),
"PORTAGE_INST_UID": str(os.getuid()),
}
if "__PORTAGE_TEST_HARDLINK_LOCKS" in os.environ:
env["__PORTAGE_TEST_HARDLINK_LOCKS"] = os.environ[
"__PORTAGE_TEST_HARDLINK_LOCKS"
]
dirs = [
playground.distdir,
fake_bin,
portage_tmpdir,
user_config_dir,
var_cache_edb,
]
true_symlinks = ["chown", "chgrp"]
true_binary = find_binary("true")
self.assertEqual(true_binary is None, False, "true command not found")
try:
for d in dirs:
ensure_dirs(d)
for x in true_symlinks:
os.symlink(true_binary, os.path.join(fake_bin, x))
with open(os.path.join(var_cache_edb, "counter"), "wb") as f:
f.write(b"100")
# non-empty system set keeps --depclean quiet
with open(os.path.join(profile_path, "packages"), "w") as f:
f.write("*dev-libs/token-system-pkg")
if debug:
# The subprocess inherits both stdout and stderr, for
# debugging purposes.
stdout = None
else:
# The subprocess inherits stderr so that any warnings
# triggered by python -Wd will be visible.
stdout = subprocess.PIPE
for i, args in enumerate(test_commands):
if hasattr(args[0], "__call__"):
self.assertTrue(args[0](), f"callable at index {i} failed")
continue
if isinstance(args[0], dict):
local_env = env.copy()
local_env.update(args[0])
args = args[1:]
else:
local_env = env
proc = subprocess.Popen(args, env=local_env, stdout=stdout)
if debug:
proc.wait()
else:
output = proc.stdout.readlines()
proc.wait()
proc.stdout.close()
if proc.returncode != os.EX_OK:
for line in output:
sys.stderr.write(_unicode_decode(line))
self.assertEqual(
os.EX_OK, proc.returncode, f"emerge failed with args {args}"
)
finally:
playground.debug = False
playground.cleanup()
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