now uses atomic move to avoid data corruption
correclty cleans up temp files in every case
returns backup_file info if needed
validate validate before temp file gets created
backup AFTER validate
Without this change, a download failure may bail out with the message:
"Failure downloading http://foo/bar, 'NoneType' object has no attribute 'read'"
whereas with this fix, you'd get a proper error like:
"Failure downloading http://foo/bar, Request failed: <urlopen error [Errno 113] No route to host>"
or one of the many other possible download errors that can occur.
Using the difflist feature added in ansible/ansible@c337293 we can add
two diffs to the `diff` dict returned as JSON: A `before` and `after` pair of
changed file contents and the diff of the file attributes.
n.b.: the difflist handling from the above commit is logically broken.
PR will follow.
Example output:
TASK [change line and mode] ************************************************************
changed: [localhost]
--- before: /tmp/sshd_config (content)
+++ after: /tmp/sshd_config (content)
@@ -65,21 +65,21 @@
X11DisplayOffset 10
PrintMotd no
PrintLastLog yes
TCPKeepAlive yes
#UseLogin no
#MaxStartups 10:30:60
#Banner /etc/issue.net
# Allow client to pass locale environment variables
-AcceptEnv LANG LC_*
+AcceptEnv LANG LC_* GF_ENV_*
Subsystem sftp /usr/lib/openssh/sftp-server
# Set this to 'yes' to enable PAM authentication, account processing,
# and session processing. If this is enabled, PAM authentication will
# be allowed through the ChallengeResponseAuthentication and
# PasswordAuthentication. Depending on your PAM configuration,
# PAM authentication via ChallengeResponseAuthentication may bypass
# the setting of "PermitRootLogin without-password".
# If you just want the PAM account and session checks to run without
--- before: /tmp/sshd_config (file attributes)
+++ after: /tmp/sshd_config (file attributes)
@@ -1,3 +1,3 @@
{
- "mode": "0700"
+ "mode": "0644"
}
The parameters 'diff_peek' and 'validate' are not expected to be used
by users. They are internal. To make it clear, this change adds the
comments 'Internal use only' to each of those definitions to make
it clear that they are actually used, just not by end-users.
The 'diff_peek' option isn't documented at all, and provides a
rudimentary check that the content isn't binary. Documentation is
added to explain the option.
The 'validate' option has a declaration, but isn't implemented.
Therefore it may as well be removed from the module.
