EVOLUTION-MANAGER

Edit File: pip.py

#!/usr/bin/python # -*- coding: utf-8 -*- # Copyright: (c) 2012, Matt Wright <matt@nobien.net> # GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt) from __future__ import absolute_import, division, print_function __metaclass__ = type ANSIBLE_METADATA = {'metadata_version': '1.1', 'status': ['preview'], 'supported_by': 'core'} DOCUMENTATION = ''' --- module: pip short_description: Manages Python library dependencies description: - "Manage Python library dependencies. To use this module, one of the following keys is required: C(name) or C(requirements)." version_added: "0.7" options: name: description: - The name of a Python library to install or the url(bzr+,hg+,git+,svn+) of the remote package. - This can be a list (since 2.2) and contain version specifiers (since 2.7). type: list version: description: - The version number to install of the Python library specified in the I(name) parameter. type: str requirements: description: - The path to a pip requirements file, which should be local to the remote system. File can be specified as a relative path if using the chdir option. type: str virtualenv: description: - An optional path to a I(virtualenv) directory to install into. It cannot be specified together with the 'executable' parameter (added in 2.1). If the virtualenv does not exist, it will be created before installing packages. The optional virtualenv_site_packages, virtualenv_command, and virtualenv_python options affect the creation of the virtualenv. type: path virtualenv_site_packages: description: - Whether the virtual environment will inherit packages from the global site-packages directory. Note that if this setting is changed on an already existing virtual environment it will not have any effect, the environment must be deleted and newly created. type: bool default: "no" version_added: "1.0" virtualenv_command: description: - The command or a pathname to the command to create the virtual environment with. For example C(pyvenv), C(virtualenv), C(virtualenv2), C(~/bin/virtualenv), C(/usr/local/bin/virtualenv). type: path default: virtualenv version_added: "1.1" virtualenv_python: description: - The Python executable used for creating the virtual environment. For example C(python3.5), C(python2.7). When not specified, the Python version used to run the ansible module is used. This parameter should not be used when C(virtualenv_command) is using C(pyvenv) or the C(-m venv) module. type: str version_added: "2.0" state: description: - The state of module - The 'forcereinstall' option is only available in Ansible 2.1 and above. type: str choices: [ absent, forcereinstall, latest, present ] default: present extra_args: description: - Extra arguments passed to pip. type: str version_added: "1.0" editable: description: - Pass the editable flag. type: bool default: 'no' version_added: "2.0" chdir: description: - cd into this directory before running the command type: path version_added: "1.3" executable: description: - The explicit executable or pathname for the pip executable, if different from the Ansible Python interpreter. For example C(pip3.3), if there are both Python 2.7 and 3.3 installations in the system and you want to run pip for the Python 3.3 installation. - Mutually exclusive with I(virtualenv) (added in 2.1). - Does not affect the Ansible Python interpreter. - The setuptools package must be installed for both the Ansible Python interpreter and for the version of Python specified by this option. type: path version_added: "1.3" umask: description: - The system umask to apply before installing the pip package. This is useful, for example, when installing on systems that have a very restrictive umask by default (e.g., "0077") and you want to pip install packages which are to be used by all users. Note that this requires you to specify desired umask mode as an octal string, (e.g., "0022"). type: str version_added: "2.1" notes: - The virtualenv (U(http://www.virtualenv.org/)) must be installed on the remote host if the virtualenv parameter is specified and the virtualenv needs to be created. - Although it executes using the Ansible Python interpreter, the pip module shells out to run the actual pip command, so it can use any pip version you specify with I(executable). By default, it uses the pip version for the Ansible Python interpreter. For example, pip3 on python 3, and pip2 or pip on python 2. - The interpreter used by Ansible (see :ref:`ansible_python_interpreter<ansible_python_interpreter>`) requires the setuptools package, regardless of the version of pip set with the I(executable) option. requirements: - pip - virtualenv - setuptools author: - Matt Wright (@mattupstate) ''' EXAMPLES = ''' # Install (Bottle) python package. - pip: name: bottle # Install (Bottle) python package on version 0.11. - pip: name: bottle==0.11 # Install (bottle) python package with version specifiers - pip: name: bottle>0.10,<0.20,!=0.11 # Install multi python packages with version specifiers - pip: name: - django>1.11.0,<1.12.0 - bottle>0.10,<0.20,!=0.11 # Install python package using a proxy - it doesn't use the standard environment variables, please use the CAPITALIZED ones below - pip: name: six environment: HTTP_PROXY: '127.0.0.1:8080' HTTPS_PROXY: '127.0.0.1:8080' # Install (MyApp) using one of the remote protocols (bzr+,hg+,git+,svn+). You do not have to supply '-e' option in extra_args. - pip: name: svn+http://myrepo/svn/MyApp#egg=MyApp # Install MyApp using one of the remote protocols (bzr+,hg+,git+). - pip: name: git+http://myrepo/app/MyApp # Install (MyApp) from local tarball - pip: name: file:///path/to/MyApp.tar.gz # Install (Bottle) into the specified (virtualenv), inheriting none of the globally installed modules - pip: name: bottle virtualenv: /my_app/venv # Install (Bottle) into the specified (virtualenv), inheriting globally installed modules - pip: name: bottle virtualenv: /my_app/venv virtualenv_site_packages: yes # Install (Bottle) into the specified (virtualenv), using Python 2.7 - pip: name: bottle virtualenv: /my_app/venv virtualenv_command: virtualenv-2.7 # Install (Bottle) within a user home directory. - pip: name: bottle extra_args: --user # Install specified python requirements. - pip: requirements: /my_app/requirements.txt # Install specified python requirements in indicated (virtualenv). - pip: requirements: /my_app/requirements.txt virtualenv: /my_app/venv # Install specified python requirements and custom Index URL. - pip: requirements: /my_app/requirements.txt extra_args: -i https://example.com/pypi/simple # Install specified python requirements offline from a local directory with downloaded packages. - pip: requirements: /my_app/requirements.txt extra_args: "--no-index --find-links=file:///my_downloaded_packages_dir" # Install (Bottle) for Python 3.3 specifically,using the 'pip3.3' executable. - pip: name: bottle executable: pip3.3 # Install (Bottle), forcing reinstallation if it's already installed - pip: name: bottle state: forcereinstall # Install (Bottle) while ensuring the umask is 0022 (to ensure other users can use it) - pip: name: bottle umask: "0022" become: True ''' RETURN = ''' cmd: description: pip command used by the module returned: success type: str sample: pip2 install ansible six name: description: list of python modules targetted by pip returned: success type: list sample: ['ansible', 'six'] requirements: description: Path to the requirements file returned: success, if a requirements file was provided type: str sample: "/srv/git/project/requirements.txt" version: description: Version of the package specified in 'name' returned: success, if a name and version were provided type: str sample: "2.5.1" virtualenv: description: Path to the virtualenv returned: success, if a virtualenv path was provided type: str sample: "/tmp/virtualenv" ''' import os import re import sys import tempfile import operator import shlex import traceback from distutils.version import LooseVersion SETUPTOOLS_IMP_ERR = None try: from pkg_resources import Requirement HAS_SETUPTOOLS = True except ImportError: HAS_SETUPTOOLS = False SETUPTOOLS_IMP_ERR = traceback.format_exc() from ansible.module_utils.basic import AnsibleModule, is_executable, missing_required_lib from ansible.module_utils._text import to_native from ansible.module_utils.six import PY3 #: Python one-liners to be run at the command line that will determine the # installed version for these special libraries. These are libraries that # don't end up in the output of pip freeze. _SPECIAL_PACKAGE_CHECKERS = {'setuptools': 'import setuptools; print(setuptools.__version__)', 'pip': 'import pkg_resources; print(pkg_resources.get_distribution("pip").version)'} _VCS_RE = re.compile(r'(svn|git|hg|bzr)\+') op_dict = {">=": operator.ge, "<=": operator.le, ">": operator.gt, "<": operator.lt, "==": operator.eq, "!=": operator.ne, "~=": operator.ge} def _is_vcs_url(name): """Test whether a name is a vcs url or not.""" return re.match(_VCS_RE, name) def _is_package_name(name): """Test whether the name is a package name or a version specifier.""" return not name.lstrip().startswith(tuple(op_dict.keys())) def _recover_package_name(names): """Recover package names as list from user's raw input. :input: a mixed and invalid list of names or version specifiers :return: a list of valid package name eg. input: ['django>1.11.1', '<1.11.3', 'ipaddress', 'simpleproject>1.1.0', '<2.0.0'] return: ['django>1.11.1,<1.11.3', 'ipaddress', 'simpleproject>1.1.0,<2.0.0'] input: ['django>1.11.1,<1.11.3,ipaddress', 'simpleproject>1.1.0,<2.0.0'] return: ['django>1.11.1,<1.11.3', 'ipaddress', 'simpleproject>1.1.0,<2.0.0'] """ # rebuild input name to a flat list so we can tolerate any combination of input tmp = [] for one_line in names: tmp.extend(one_line.split(",")) names = tmp # reconstruct the names name_parts = [] package_names = [] in_brackets = False for name in names: if _is_package_name(name) and not in_brackets: if name_parts: package_names.append(",".join(name_parts)) name_parts = [] if "[" in name: in_brackets = True if in_brackets and "]" in name: in_brackets = False name_parts.append(name) package_names.append(",".join(name_parts)) return package_names def _get_cmd_options(module, cmd): thiscmd = cmd + " --help" rc, stdout, stderr = module.run_command(thiscmd) if rc != 0: module.fail_json(msg="Could not get output from %s: %s" % (thiscmd, stdout + stderr)) words = stdout.strip().split() cmd_options = [x for x in words if x.startswith('--')] return cmd_options def _get_packages(module, pip, chdir): '''Return results of pip command to get packages.''' # Try 'pip list' command first. command = '%s list --format=freeze' % pip lang_env = {'LANG': 'C', 'LC_ALL': 'C', 'LC_MESSAGES': 'C'} rc, out, err = module.run_command(command, cwd=chdir, environ_update=lang_env) # If there was an error (pip version too old) then use 'pip freeze'. if rc != 0: command = '%s freeze' % pip rc, out, err = module.run_command(command, cwd=chdir) if rc != 0: _fail(module, command, out, err) return command, out, err def _is_present(module, req, installed_pkgs, pkg_command): '''Return whether or not package is installed.''' for pkg in installed_pkgs: if '==' in pkg: pkg_name, pkg_version = pkg.split('==') pkg_name = Package.canonicalize_name(pkg_name) else: continue if pkg_name == req.package_name and req.is_satisfied_by(pkg_version): return True return False def _get_pip(module, env=None, executable=None): # Older pip only installed under the "/usr/bin/pip" name. Many Linux # distros install it there. # By default, we try to use pip required for the current python # interpreter, so people can use pip to install modules dependencies candidate_pip_basenames = ('pip2', 'pip') if PY3: # pip under python3 installs the "/usr/bin/pip3" name candidate_pip_basenames = ('pip3',) pip = None if executable is not None: if os.path.isabs(executable): pip = executable else: # If you define your own executable that executable should be the only candidate. # As noted in the docs, executable doesn't work with virtualenvs. candidate_pip_basenames = (executable,) if pip is None: if env is None: opt_dirs = [] for basename in candidate_pip_basenames: pip = module.get_bin_path(basename, False, opt_dirs) if pip is not None: break else: # For-else: Means that we did not break out of the loop # (therefore, that pip was not found) module.fail_json(msg='Unable to find any of %s to use. pip' ' needs to be installed.' % ', '.join(candidate_pip_basenames)) else: # If we're using a virtualenv we must use the pip from the # virtualenv venv_dir = os.path.join(env, 'bin') candidate_pip_basenames = (candidate_pip_basenames[0], 'pip') for basename in candidate_pip_basenames: candidate = os.path.join(venv_dir, basename) if os.path.exists(candidate) and is_executable(candidate): pip = candidate break else: # For-else: Means that we did not break out of the loop # (therefore, that pip was not found) module.fail_json(msg='Unable to find pip in the virtualenv, %s, ' % env + 'under any of these names: %s. ' % (', '.join(candidate_pip_basenames)) + 'Make sure pip is present in the virtualenv.') return pip def _fail(module, cmd, out, err): msg = '' if out: msg += "stdout: %s" % (out, ) if err: msg += "\n:stderr: %s" % (err, ) module.fail_json(cmd=cmd, msg=msg) def _get_package_info(module, package, env=None): """This is only needed for special packages which do not show up in pip freeze pip and setuptools fall into this category. :returns: a string containing the version number if the package is installed. None if the package is not installed. """ if env: opt_dirs = ['%s/bin' % env] else: opt_dirs = [] python_bin = module.get_bin_path('python', False, opt_dirs) if python_bin is None: formatted_dep = None else: rc, out, err = module.run_command([python_bin, '-c', _SPECIAL_PACKAGE_CHECKERS[package]]) if rc: formatted_dep = None else: formatted_dep = '%s==%s' % (package, out.strip()) return formatted_dep def setup_virtualenv(module, env, chdir, out, err): if module.check_mode: module.exit_json(changed=True) cmd = shlex.split(module.params['virtualenv_command']) # Find the binary for the command in the PATH # and switch the command for the explicit path. if os.path.basename(cmd[0]) == cmd[0]: cmd[0] = module.get_bin_path(cmd[0], True) # Add the system-site-packages option if that # is enabled, otherwise explicitly set the option # to not use system-site-packages if that is an # option provided by the command's help function. if module.params['virtualenv_site_packages']: cmd.append('--system-site-packages') else: cmd_opts = _get_cmd_options(module, cmd[0]) if '--no-site-packages' in cmd_opts: cmd.append('--no-site-packages') virtualenv_python = module.params['virtualenv_python'] # -p is a virtualenv option, not compatible with pyenv or venv # this conditional validates if the command being used is not any of them if not any(ex in module.params['virtualenv_command'] for ex in ('pyvenv', '-m venv')): if virtualenv_python: cmd.append('-p%s' % virtualenv_python) elif PY3: # Ubuntu currently has a patch making virtualenv always # try to use python2. Since Ubuntu16 works without # python2 installed, this is a problem. This code mimics # the upstream behaviour of using the python which invoked # virtualenv to determine which python is used inside of # the virtualenv (when none are specified). cmd.append('-p%s' % sys.executable) # if venv or pyvenv are used and virtualenv_python is defined, then # virtualenv_python is ignored, this has to be acknowledged elif module.params['virtualenv_python']: module.fail_json( msg='virtualenv_python should not be used when' ' using the venv module or pyvenv as virtualenv_command' ) cmd.append(env) rc, out_venv, err_venv = module.run_command(cmd, cwd=chdir) out += out_venv err += err_venv if rc != 0: _fail(module, cmd, out, err) return out, err class Package: """Python distribution package metadata wrapper. A wrapper class for Requirement, which provides API to parse package name, version specifier, test whether a package is already satisfied. """ _CANONICALIZE_RE = re.compile(r'[-_.]+') def __init__(self, name_string, version_string=None): self._plain_package = False self.package_name = name_string self._requirement = None if version_string: version_string = version_string.lstrip() separator = '==' if version_string[0].isdigit() else ' ' name_string = separator.join((name_string, version_string)) try: self._requirement = Requirement.parse(name_string) # old pkg_resource will replace 'setuptools' with 'distribute' when it's already installed if self._requirement.project_name == "distribute" and "setuptools" in name_string: self.package_name = "setuptools" self._requirement.project_name = "setuptools" else: self.package_name = Package.canonicalize_name(self._requirement.project_name) self._plain_package = True except ValueError as e: pass @property def has_version_specifier(self): if self._plain_package: return bool(self._requirement.specs) return False def is_satisfied_by(self, version_to_test): if not self._plain_package: return False try: return self._requirement.specifier.contains(version_to_test, prereleases=True) except AttributeError: # old setuptools has no specifier, do fallback version_to_test = LooseVersion(version_to_test) return all( op_dict[op](version_to_test, LooseVersion(ver)) for op, ver in self._requirement.specs ) @staticmethod def canonicalize_name(name): # This is taken from PEP 503. return Package._CANONICALIZE_RE.sub("-", name).lower() def __str__(self): if self._plain_package: return to_native(self._requirement) return self.package_name def main(): state_map = dict( present=['install'], absent=['uninstall', '-y'], latest=['install', '-U'], forcereinstall=['install', '-U', '--force-reinstall'], ) module = AnsibleModule( argument_spec=dict( state=dict(type='str', default='present', choices=state_map.keys()), name=dict(type='list', elements='str'), version=dict(type='str'), requirements=dict(type='str'), virtualenv=dict(type='path'), virtualenv_site_packages=dict(type='bool', default=False), virtualenv_command=dict(type='path', default='virtualenv'), virtualenv_python=dict(type='str'), extra_args=dict(type='str'), editable=dict(type='bool', default=False), chdir=dict(type='path'), executable=dict(type='path'), umask=dict(type='str'), ), required_one_of=[['name', 'requirements']], mutually_exclusive=[['name', 'requirements'], ['executable', 'virtualenv']], supports_check_mode=True, ) if not HAS_SETUPTOOLS: module.fail_json(msg=missing_required_lib("setuptools"), exception=SETUPTOOLS_IMP_ERR) state = module.params['state'] name = module.params['name'] version = module.params['version'] requirements = module.params['requirements'] extra_args = module.params['extra_args'] chdir = module.params['chdir'] umask = module.params['umask'] env = module.params['virtualenv'] venv_created = False if env and chdir: env = os.path.join(chdir, env) if umask and not isinstance(umask, int): try: umask = int(umask, 8) except Exception: module.fail_json(msg="umask must be an octal integer", details=to_native(sys.exc_info()[1])) old_umask = None if umask is not None: old_umask = os.umask(umask) try: if state == 'latest' and version is not None: module.fail_json(msg='version is incompatible with state=latest') if chdir is None: # this is done to avoid permissions issues with privilege escalation and virtualenvs chdir = tempfile.gettempdir() err = '' out = '' if env: if not os.path.exists(os.path.join(env, 'bin', 'activate')): venv_created = True out, err = setup_virtualenv(module, env, chdir, out, err) pip = _get_pip(module, env, module.params['executable']) cmd = [pip] + state_map[state] # If there's a virtualenv we want things we install to be able to use other # installations that exist as binaries within this virtualenv. Example: we # install cython and then gevent -- gevent needs to use the cython binary, # not just a python package that will be found by calling the right python. # So if there's a virtualenv, we add that bin/ to the beginning of the PATH # in run_command by setting path_prefix here. path_prefix = None if env: path_prefix = "/".join(pip.split('/')[:-1]) # Automatically apply -e option to extra_args when source is a VCS url. VCS # includes those beginning with svn+, git+, hg+ or bzr+ has_vcs = False if name: for pkg in name: if pkg and _is_vcs_url(pkg): has_vcs = True break # convert raw input package names to Package instances packages = [Package(pkg) for pkg in _recover_package_name(name)] # check invalid combination of arguments if version is not None: if len(packages) > 1: module.fail_json( msg="'version' argument is ambiguous when installing multiple package distributions. " "Please specify version restrictions next to each package in 'name' argument." ) if packages[0].has_version_specifier: module.fail_json( msg="The 'version' argument conflicts with any version specifier provided along with a package name. " "Please keep the version specifier, but remove the 'version' argument." ) # if the version specifier is provided by version, append that into the package packages[0] = Package(to_native(packages[0]), version) if module.params['editable']: args_list = [] # used if extra_args is not used at all if extra_args: args_list = extra_args.split(' ') if '-e' not in args_list: args_list.append('-e') # Ok, we will reconstruct the option string extra_args = ' '.join(args_list) if extra_args: cmd.extend(shlex.split(extra_args)) if name: cmd.extend(to_native(p) for p in packages) elif requirements: cmd.extend(['-r', requirements]) else: module.exit_json( changed=False, warnings=["No valid name or requirements file found."], ) if module.check_mode: if extra_args or requirements or state == 'latest' or not name: module.exit_json(changed=True) pkg_cmd, out_pip, err_pip = _get_packages(module, pip, chdir) out += out_pip err += err_pip changed = False if name: pkg_list = [p for p in out.split('\n') if not p.startswith('You are using') and not p.startswith('You should consider') and p] if pkg_cmd.endswith(' freeze') and ('pip' in name or 'setuptools' in name): # Older versions of pip (pre-1.3) do not have pip list. # pip freeze does not list setuptools or pip in its output # So we need to get those via a specialcase for pkg in ('setuptools', 'pip'): if pkg in name: formatted_dep = _get_package_info(module, pkg, env) if formatted_dep is not None: pkg_list.append(formatted_dep) out += '%s\n' % formatted_dep for package in packages: is_present = _is_present(module, package, pkg_list, pkg_cmd) if (state == 'present' and not is_present) or (state == 'absent' and is_present): changed = True break module.exit_json(changed=changed, cmd=pkg_cmd, stdout=out, stderr=err) out_freeze_before = None if requirements or has_vcs: _, out_freeze_before, _ = _get_packages(module, pip, chdir) rc, out_pip, err_pip = module.run_command(cmd, path_prefix=path_prefix, cwd=chdir) out += out_pip err += err_pip if rc == 1 and state == 'absent' and \ ('not installed' in out_pip or 'not installed' in err_pip): pass # rc is 1 when attempting to uninstall non-installed package elif rc != 0: _fail(module, cmd, out, err) if state == 'absent': changed = 'Successfully uninstalled' in out_pip else: if out_freeze_before is None: changed = 'Successfully installed' in out_pip else: _, out_freeze_after, _ = _get_packages(module, pip, chdir) changed = out_freeze_before != out_freeze_after changed = changed or venv_created module.exit_json(changed=changed, cmd=cmd, name=name, version=version, state=state, requirements=requirements, virtualenv=env, stdout=out, stderr=err) finally: if old_umask is not None: os.umask(old_umask) if __name__ == '__main__': main()