From ee9619c5f737a0d8424e4e095172e24abd203980 Mon Sep 17 00:00:00 2001
From: Kavin Kankeshwar <kavin@aerospike.com>
Date: Sun, 17 Feb 2013 23:15:27 -0800
Subject: [PATCH 1/2] teach apt module to support --check mode

---
 apt | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/apt b/apt
index 3c8a270a6ce..ee91ee306c5 100644
--- a/apt
+++ b/apt
@@ -138,6 +138,9 @@ def install(m, pkgspec, cache, upgrade=False, default_release=None, install_reco
         if not install_recommends:
             cmd += " --no-install-recommends"
 
+        if m.check_mode:
+            m.exit_json(changed=True)
+
         rc, out, err = m.run_command(cmd)
         if rc:
             m.fail_json(msg="'apt-get install %s' failed: %s" % (packages, err))
@@ -159,6 +162,10 @@ def remove(m, pkgspec, cache, purge=False):
     else:
         purge = '--purge' if purge else ''
         cmd = "%s -q -y %s remove %s" % (APT, purge,packages)
+
+        if m.check_mode:
+            m.exit_json(changed=True)
+
         rc, out, err = m.run_command(cmd)
         if rc:
             m.fail_json(msg="'apt-get remove %s' failed: %s" % (packages, err))
@@ -175,7 +182,8 @@ def main():
             default_release = dict(default=None, aliases=['default-release']),
             install_recommends = dict(default='yes', aliases=['install-recommends'], choices=['yes', 'no']),
             force = dict(default='no', choices=['yes', 'no'])
-        )
+        ),
+        supports_check_mode = True
     )
 
     try:
@@ -230,4 +238,3 @@ def main():
 #<<INCLUDE_ANSIBLE_MODULE_COMMON>>
 
 main()
-

From fe9933ee475fb12d23d8babb0d5eeca60088dbd4 Mon Sep 17 00:00:00 2001
From: Kavin Kankeshwar <kavin@aerospike.com>
Date: Sun, 17 Feb 2013 23:41:31 -0800
Subject: [PATCH 2/2] teach lineinfile module to support --check mode

---
 lineinfile | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/lineinfile b/lineinfile
index 9543450009c..89cc460095a 100644
--- a/lineinfile
+++ b/lineinfile
@@ -164,7 +164,7 @@ def present(module, dest, regexp, line, insertafter, insertbefore, create, backu
         msg = 'line added'
         changed = True
 
-    if changed:
+    if changed and not module.check_mode:
         if backup and os.path.exists(dest):
             module.backup_local(dest)
         f = open(dest, 'wb')
@@ -189,7 +189,7 @@ def absent(module, dest, regexp, backup):
 
     lines = filter(matcher, lines)
     changed = len(found) > 0
-    if changed:
+    if changed and not module.check_mode:
         if backup:
             module.backup_local(dest)
         f = open(dest, 'wb')
@@ -209,7 +209,8 @@ def main():
             create=dict(default=False, choices=BOOLEANS),
             backup=dict(default=False, choices=BOOLEANS),
         ),
-    mutually_exclusive = [['insertbefore', 'insertafter']]
+    mutually_exclusive = [['insertbefore', 'insertafter']],
+    supports_check_mode = True
     )
 
     params = module.params