add apt_repository module

library/apt_repository

+#!/usr/bin/python
+
+import platform
+
+APT = "/usr/bin/apt-get"
+ADD_APT_REPOSITORY = None
+
+
+def _find_binary():
+    binaries = ['/usr/bin/add-apt-repository']
+
+    for e in binaries:
+        if os.path.exists(e):
+            return e
+
+    module.fail_json(msg='Unabled to find any of the following executables '
+                         '%s' % binaries)
+
+def _run(cmd):
+    # returns (rc, stdout, stderr) from shell command
+    process = subprocess.Popen(cmd, stdout=subprocess.PIPE,
+                               stderr=subprocess.PIPE, shell=True)
+    stdout, stderr = process.communicate()
+    return (process.returncode, stdout, stderr)
+
+
+def main():
+    arg_spec = dict(
+        repo=dict(required=True),
+        state=dict(default='present', choices=['present', 'absent'])
+    )
+
+    module = AnsibleModule(argument_spec=arg_spec)
+
+    global ADD_APT_REPOSITORY
+
+    ADD_APT_REPOSITORY = _find_binary()
+
+    repo = module.params['repo']
+    state = module.params['state']
+
+    rc, out, err = _run('%s %s --remove' % (ADD_APT_REPOSITORY, repo))
+    existed = 'Error' not in out
+
+    if state == 'absent':
+        if not existed:
+            module.exit_json(changed=False, repo=repo)
+        else:
+            module.exit_json(changed=True, repo=repo)
+
+    cmd = '%s %s' % (ADD_APT_REPOSITORY, repo)
+
+    if float(platform.dist()[1]) >= 11.10:
+        cmd = cmd + ' -y'
+
+    rc, out, err = _run(cmd)
+
+    changed = rc == 0 and not existed
+
+    if rc != 0:
+        module.fail_json(msg=err)
+
+    if changed:
+        _run('%s update' % APT)
+
+    module.exit_json(changed=changed, existed=existed, repo=repo, cmd=cmd)
+
+# this is magic, see lib/ansible/module_common.py
+#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
+
+main()