pkgin: support check mode, make other improvements
* Add support for check mode * Use "pkgin search" to guarantee 0 or 1 result * Edit documentation for style, new feature, etc. * General refactoring * Lay some groundwork for future support of "state=latest"
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Larry Gilbert
Larry Gilbert
parent
229e5ad80f
commit
3425828795
1 changed files with 88 additions and 46 deletions
126
packaging/os/pkgin.py
Executable file → Normal file
126
packaging/os/pkgin.py
Executable file → Normal file
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@ -1,8 +1,10 @@
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2013, Shaun Zinck
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# Written by Shaun Zinck <shaun.zinck at gmail.com>
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# Copyright (c) 2013 Shaun Zinck <shaun.zinck at gmail.com>
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# Copyright (c) 2015 Lawrence Leonard Gilbert <larry@L2G.to>
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#
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# Written by Shaun Zinck
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# Based on pacman module written by Afterburn <http://github.com/afterburn>
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# that was based on apt module written by Matthew Williams <matthew@flowroute.com>
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#
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@ -23,27 +25,32 @@
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DOCUMENTATION = '''
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---
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module: pkgin
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short_description: Package manager for SmartOS
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short_description: Package manager for SmartOS, NetBSD, et al.
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description:
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- Manages SmartOS packages
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- "The standard package manager for SmartOS, but also usable on NetBSD
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or any OS that uses C(pkgsrc). (Home: U(http://pkgin.net/))"
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version_added: "1.0"
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author: Shaun Zinck, Larry Gilbert
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notes:
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- "Known bug with pkgin < 0.8.0: if a package is removed and another
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package depends on it, the other package will be silently removed as
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well. New to Ansible 1.9: check-mode support."
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options:
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name:
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description:
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- name of package to install/remove
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- Name of package to install/remove;
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- multiple names may be given, separated by commas
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required: true
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state:
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description:
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- state of the package
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- Intended state of the package
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choices: [ 'present', 'absent' ]
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required: false
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default: present
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author: Shaun Zinck
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notes: []
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'''
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EXAMPLES = '''
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# install package foo"
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# install package foo
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- pkgin: name=foo state=present
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# remove package foo
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@ -60,64 +67,97 @@ import os
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import sys
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import pipes
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def query_package(module, pkgin_path, name, state="present"):
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def query_package(module, pkgin_path, name):
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"""Search for the package by name.
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if state == "present":
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Possible return values:
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* "present" - installed, no upgrade needed
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* "outdated" - installed, but can be upgraded
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* False - not installed or not found
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"""
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rc, out, err = module.run_command("%s -y list | grep ^%s" % (pipes.quote(pkgin_path), pipes.quote(name)), use_unsafe_shell=True)
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# Use "pkgin search" to find the package. The regular expression will
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# only match on the complete name.
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rc, out, err = module.run_command("%s search \"^%s$\"" % (pkgin_path, name))
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# rc will not be 0 unless the search was a success
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if rc == 0:
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# At least one package with a package name that starts with ``name``
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# is installed. For some cases this is not sufficient to determine
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# wether the queried package is installed.
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#
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# E.g. for ``name='gcc47'``, ``gcc47`` not being installed, but
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# ``gcc47-libs`` being installed, ``out`` would be:
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#
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# gcc47-libs-4.7.2nb4 The GNU Compiler Collection (GCC) support shared libraries.
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#
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# Multiline output is also possible, for example with the same query
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# and bot ``gcc47`` and ``gcc47-libs`` being installed:
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#
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# gcc47-libs-4.7.2nb4 The GNU Compiler Collection (GCC) support shared libraries.
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# gcc47-4.7.2nb3 The GNU Compiler Collection (GCC) - 4.7 Release Series
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# Loop over lines in ``out``
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for line in out.split('\n'):
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# Get first line
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line = out.split('\n')[0]
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# Strip description
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# (results in sth. like 'gcc47-libs-4.7.2nb4')
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pkgname_with_version = out.split(' ')[0]
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# Break up line at spaces. The first part will be the package with its
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# version (e.g. 'gcc47-libs-4.7.2nb4'), and the second will be the state
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# of the package:
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# '' - not installed
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# '<' - installed but out of date
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# '=' - installed and up to date
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# '>' - installed but newer than the repository version
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pkgname_with_version, raw_state = out.split(' ')[0:2]
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# Strip version
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# (results in sth like 'gcc47-libs')
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pkgname_without_version = '-'.join(pkgname_with_version.split('-')[:-1])
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if name == pkgname_without_version:
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return True
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if name != pkgname_without_version:
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return False
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# no fall-through
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# The package was found; now return its state
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if raw_state == '<':
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return 'outdated'
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elif raw_state == '=' or raw_state == '>':
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return 'present'
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else:
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return False
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def format_action_message(module, action, count):
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vars = { "actioned": action,
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"count": count }
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if module.check_mode:
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message = "would have %(actioned)s %(count)d package" % vars
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else:
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message = "%(actioned)s %(count)d package" % vars
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if count == 1:
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return message
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else:
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return message + "s"
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def format_pkgin_command(module, pkgin_path, command, package):
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vars = { "pkgin": pkgin_path,
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"command": command,
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"package": package }
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if module.check_mode:
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return "%(pkgin)s -n %(command)s %(package)s" % vars
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else:
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return "%(pkgin)s -y %(command)s %(package)s" % vars
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def remove_packages(module, pkgin_path, packages):
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remove_c = 0
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# Using a for loop incase of error, we can report the package that failed
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for package in packages:
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# Query the package first, to see if we even need to remove
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if not query_package(module, pkgin_path, package):
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continue
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rc, out, err = module.run_command("%s -y remove %s" % (pkgin_path, package))
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rc, out, err = module.run_command(
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format_pkgin_command(module, pkgin_path, "remove", package))
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if query_package(module, pkgin_path, package):
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if not module.check_mode and query_package(module, pkgin_path, package):
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module.fail_json(msg="failed to remove %s: %s" % (package, out))
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remove_c += 1
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if remove_c > 0:
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module.exit_json(changed=True, msg="removed %s package(s)" % remove_c)
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module.exit_json(changed=True, msg=format_action_message(module, "removed", remove_c))
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module.exit_json(changed=False, msg="package(s) already absent")
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@ -130,15 +170,16 @@ def install_packages(module, pkgin_path, packages):
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if query_package(module, pkgin_path, package):
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continue
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rc, out, err = module.run_command("%s -y install %s" % (pkgin_path, package))
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rc, out, err = module.run_command(
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format_pkgin_command(module, pkgin_path, "install", package))
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if not query_package(module, pkgin_path, package):
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if not module.check_mode and not query_package(module, pkgin_path, package):
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module.fail_json(msg="failed to install %s: %s" % (package, out))
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install_c += 1
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if install_c > 0:
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module.exit_json(changed=True, msg="present %s package(s)" % (install_c))
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module.exit_json(changed=True, msg=format_action_message(module, "installed", install_c))
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module.exit_json(changed=False, msg="package(s) already present")
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@ -148,7 +189,8 @@ def main():
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module = AnsibleModule(
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argument_spec = dict(
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state = dict(default="present", choices=["present","absent"]),
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name = dict(aliases=["pkg"], required=True)))
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name = dict(aliases=["pkg"], required=True)),
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supports_check_mode = True)
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pkgin_path = module.get_bin_path('pkgin', True, ['/opt/local/bin'])
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