Adding support for OpenWrt

opkg

@@ -0,0 +1,147 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+
+# (c) 2013, Patrick Pelletier <pp.pelletier@gmail.com>
+# Based on pacman (Afterburn) and pkgin (Shaun Zinck) modules
+#
+# This module is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This software is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this software.  If not, see <http://www.gnu.org/licenses/>.
+
+DOCUMENTATION = '''
+---
+module: opkg
+author: Patrick Pelletier
+short_description: Package manager for OpenWrt
+description:
+    - Manages OpenWrt packages
+version_added: "1.1"
+options:
+    name:
+        description:
+            - name of package to install/remove
+        required: true
+    state:
+        description:
+            - state of the package
+        choices: [ 'present', 'absent' ]
+        required: false
+        default: present
+    update_cache:
+        description:
+            - update the package db first
+        required: false
+notes:  []
+'''
+EXAMPLES = '''
+opkg: name=foo state=present
+opkg: name=foo state=present update_cache=yes
+opkg: name=foo state=absent
+opkg: name=foo,bar state=absent
+'''
+
+
+def update_package_db(module, opkg_path):
+    """ Updates packages list. """
+
+    rc, out, err = module.run_command("%s update" % opkg_path)
+
+    if rc != 0:
+        module.fail_json(msg="could not update package db")
+
+
+def query_package(module, opkg_path, name, state="present"):
+    """ Returns whether a package is installed or not. """
+
+    if state == "present":
+
+        rc, out, err = module.run_command("%s list-installed | grep -q ^%s" % (opkg_path, name))
+        if rc == 0:
+            return True
+
+        return False
+
+
+def remove_packages(module, opkg_path, packages):
+    """ Uninstalls one or more packages if installed. """
+
+    remove_c = 0
+    # Using a for loop incase of error, we can report the package that failed
+    for package in packages:
+        # Query the package first, to see if we even need to remove
+        if not query_package(module, opkg_path, package):
+            continue
+
+        rc, out, err = module.run_command("%s remove %s" % (opkg_path, package))
+
+        if query_package(module, opkg_path, package):
+            module.fail_json(msg="failed to remove %s: %s" % (package, out))
+
+        remove_c += 1
+
+    if remove_c > 0:
+
+        module.exit_json(changed=True, msg="removed %s package(s)" % remove_c)
+
+    module.exit_json(changed=False, msg="package(s) already absent")
+
+
+def install_packages(module, opkg_path, packages):
+    """ Installs one or more packages if not already installed. """
+
+    install_c = 0
+
+    for package in packages:
+        if query_package(module, opkg_path, package):
+            continue
+
+        rc, out, err = module.run_command("%s install %s" % (opkg_path, package))
+
+        if not query_package(module, opkg_path, package):
+            module.fail_json(msg="failed to install %s: %s" % (package, out))
+
+        install_c += 1
+
+    if install_c > 0:
+        module.exit_json(changed=True, msg="installed %s package(s)" % (install_c))
+
+    module.exit_json(changed=False, msg="package(s) already present")
+
+
+def main():
+    module = AnsibleModule(
+        argument_spec = dict(
+            name = dict(aliases=["pkg"], required=True),
+            state = dict(default="present", choices=["present", "installed", "absent", "removed"]),
+            update_cache = dict(default="no", aliases=["update-cache"], type='bool')
+        )
+    )
+
+    opkg_path = module.get_bin_path('opkg', True, ['/bin'])
+
+    p = module.params
+
+    if p["update_cache"]:
+        update_package_db(module, opkg_path)
+
+    pkgs = p["name"].split(",")
+
+    if p["state"] in ["present", "installed"]:
+        install_packages(module, opkg_path, pkgs)
+
+    elif p["state"] in ["absent", "removed"]:
+        remove_packages(module, opkg_path, pkgs)
+
+# this is magic, see lib/ansible/module_common.py
+#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
+
+main()

setup

@@ -96,6 +96,7 @@ class Facts(object):
     # This is the fallback to handle unknowns or exceptions
     OSDIST_DICT = { '/etc/redhat-release': 'RedHat',
                     '/etc/vmware-release': 'VMwareESX',
+                    '/etc/openwrt_release': 'OpenWrt',
                     '/etc/system-release': 'OtherLinux' }
     SELINUX_MODE_DICT = { 1: 'enforcing', 0: 'permissive', -1: 'disabled' }
 
@@ -106,6 +107,7 @@ class Facts(object):
                  { 'path' : '/usr/bin/apt-get',     'name' : 'apt' },
                  { 'path' : '/usr/bin/zypper',      'name' : 'zypper' },
                  { 'path' : '/usr/bin/pacman',      'name' : 'pacman' },
+                 { 'path' : '/bin/opkg',            'name' : 'opkg' },
                  { 'path' : '/opt/local/bin/pkgin', 'name' : 'pkgin' } ]
 
     def __init__(self):
@@ -188,6 +190,16 @@ class Facts(object):
                         if 'Amazon' in data:
                             self.facts['distribution'] = 'Amazon'
                             self.facts['distribution_version'] = data.split()[-1]
+                    elif name == 'OpenWrt':
+                        data = get_file_content(path)
+                        if 'OpenWrt' in data:
+                            self.facts['distribution'] = name
+                        version = re.search('DISTRIB_RELEASE="(.*)"', data)
+                        if version:
+                            self.facts['distribution_version'] = version.groups()[0]
+                        release = re.search('DISTRIB_CODENAME="(.*)"', data)
+                        if release:
+                            self.facts['distribution_release'] = release.groups()[0]
                     else:
                         self.facts['distribution'] = name