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# 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 json
import re
from testinfra.modules.base import Module
def _re_match(line, regexp):
match = regexp.match(line)
if match is None:
raise RuntimeError(f"could not parse {line}")
return match.groups()
class Pip(Module):
"""Test pip package manager and packages"""
def __init__(self, name, pip_path="pip"):
self.name = name
self.pip_path = pip_path
super().__init__()
@property
def is_installed(self):
"""Test if the package is installed
>>> host.package("pip").is_installed
True
"""
return self.run_test("%s show %s", self.pip_path, self.name).rc == 0
@property
def version(self):
"""Return package version as returned by pip
>>> host.package("pip").version
'18.1'
"""
return self.check_output(
"%s show %s | grep Version: | cut -d' ' -f2",
self.pip_path,
self.name,
)
@classmethod
def check(cls, pip_path="pip"):
"""Verify installed packages have compatible dependencies.
>>> cmd = host.pip.check()
>>> cmd.rc
0
>>> cmd.stdout
No broken requirements found.
Can only be used if `pip check`_ command is available,
for pip versions >= 9.0.0_.
.. _pip check: https://pip.pypa.io/en/stable/reference/pip_check/
.. _9.0.0: https://pip.pypa.io/en/stable/news/#id526
"""
return cls.run_expect([0, 1], "%s check", pip_path)
@classmethod
def get_packages(cls, pip_path="pip"):
"""Get all installed packages and versions returned by `pip list`:
>>> host.pip.get_packages(pip_path='~/venv/website/bin/pip')
{'Django': {'version': '1.10.2'},
'mywebsite': {'version': '1.0a3', 'path': '/srv/website'},
'psycopg2': {'version': '2.6.2'}}
"""
out = cls.run_expect([0, 2], "%s list --no-index --format=json", pip_path)
pkgs = {}
if out.rc == 0:
for pkg in json.loads(out.stdout):
# XXX: --output=json does not return install path
pkgs[pkg["name"]] = {"version": pkg["version"]}
else:
# pip < 9
output_re = re.compile(r"^(.+) \((.+)\)$")
for line in cls.check_output("%s list --no-index", pip_path).splitlines():
if line.startswith("Warning: "):
# Warning: cannot find svn location for ...
continue
name, version = _re_match(line, output_re)
if "," in version:
version, path = version.split(",", 1)
pkgs[name] = {"version": version, "path": path.strip()}
else:
pkgs[name] = {"version": version}
return pkgs
@classmethod
def get_outdated_packages(cls, pip_path="pip"):
"""Get all outdated packages with current and latest version
>>> host.pip.get_outdated_packages(
... pip_path='~/venv/website/bin/pip')
{'Django': {'current': '1.10.2', 'latest': '1.10.3'}}
"""
out = cls.run_expect([0, 2], "%s list -o --format=json", pip_path)
pkgs = {}
if out.rc == 0:
for pkg in json.loads(out.stdout):
pkgs[pkg["name"]] = {
"current": pkg["version"],
"latest": pkg["latest_version"],
}
else:
# pip < 9
# pip 8: pytest (3.4.2) - Latest: 3.5.0 [wheel]
# pip < 8: pytest (Current: 3.4.2 Latest: 3.5.0 [wheel])
regexpes = [
re.compile(r"^(.+?) \((.+)\) - Latest: (.+) .*$"),
re.compile(r"^(.+?) \(Current: (.+) Latest: (.+) .*$"),
]
for line in cls.check_output("%s list -o", pip_path).splitlines():
if line.startswith("Warning: "):
# Warning: cannot find svn location for ...
continue
output_re = regexpes[1] if "Current:" in line else regexpes[0]
name, current, latest = _re_match(line, output_re)
pkgs[name] = {"current": current, "latest": latest}
return pkgs
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