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# Copyright 2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
import shutil
import subprocess
import sys
import tempfile
import portage
from portage import _unicode_decode, os
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 BinpkgFetchtestCase(TestCase):
def testLocalFilePkgSyncUpdate(self):
"""
Check handling of local file:// sync-uri and unnecessary BUILD_ID
increments (bug #921208).
"""
debug = False
ebuilds = {
"dev-libs/A-1::local": {
"EAPI": "7",
"SLOT": "0",
},
}
playground = ResolverPlayground(ebuilds=ebuilds, debug=debug)
settings = playground.settings
eprefix = settings["EPREFIX"]
eroot = settings["EROOT"]
trees = playground.trees
bindb = trees[eroot]["bintree"].dbapi
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"),
)
tmppkgdir = tempfile.TemporaryDirectory()
tmppkgdir_suffix = os.path.join(tmppkgdir.name, "binpkg")
test_commands = (
# Create a trivial binpkg first.
emerge_cmd
+ (
"--oneshot",
"--verbose",
"--buildpkg",
"dev-libs/A",
),
# Copy to a new PKGDIR which we'll use as PORTAGE_BINHOST then delete the old PKGDIR.
(
(
lambda: shutil.copytree(bindb.bintree.pkgdir, tmppkgdir_suffix)
or True,
)
),
(
(
lambda: os.unlink(
os.path.join(
bindb.bintree.pkgdir, "dev-libs", "A", "A-1-1.gpkg.tar"
)
)
or True,
)
),
)
test_commands_nonfatal = (
# This should succeed if we've correctly saved it as A-1-1.gpkg.tar, not
# A-1-2.gpkg.tar, and then also try to unpack the right filename, but
# we defer checking the exit code to get a better error if the binpkg
# was downloaded with the wrong filename.
emerge_cmd
+ (
"--oneshot",
"--verbose",
"--getbinpkgonly",
"dev-libs/A",
),
)
test_commands_final = (
# Check whether the downloaded binpkg in PKGDIR has the correct
# filename (-1) or an unnecessarily-incremented one (-2).
(
lambda: os.path.exists(
os.path.join(
bindb.bintree.pkgdir, "dev-libs", "A", "A-1-1.gpkg.tar"
)
),
),
)
fake_bin = os.path.join(eprefix, "bin")
portage_tmpdir = os.path.join(eprefix, "var", "tmp", "portage")
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()),
"FEATURES": "-pkgdir-index-trusted",
}
dirs = [
playground.distdir,
fake_bin,
portage_tmpdir,
user_config_dir,
var_cache_edb,
]
true_symlinks = ["chown", "chgrp"]
needed_binaries = {
"true": (find_binary("true"), True),
}
def run_commands(test_commands, require_success=True):
all_successful = True
for i, args in enumerate(test_commands):
if hasattr(args[0], "__call__"):
if require_success:
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
local_env["PORTAGE_BINHOST"] = f"file:///{tmppkgdir_suffix}"
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))
if all_successful and proc.returncode != os.EX_OK:
all_successful = False
if require_success:
self.assertEqual(
os.EX_OK, proc.returncode, f"emerge failed with args {args}"
)
return all_successful
try:
for d in dirs:
ensure_dirs(d)
for x in true_symlinks:
os.symlink(needed_binaries["true"][0], os.path.join(fake_bin, x))
with open(os.path.join(var_cache_edb, "counter"), "wb") as f:
f.write(b"100")
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
run_commands(test_commands)
deferred_success = run_commands(test_commands_nonfatal, False)
run_commands(test_commands_final)
# Check the return value of test_commands_nonfatal later on so
# we can get a better error message from test_commands_final
# if possible.
self.assertTrue(deferred_success, f"{test_commands_nonfatal} failed")
finally:
playground.debug = False
playground.cleanup()
tmppkgdir.cleanup()
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