[Bug 178580] New: /etc/sysconfig/spamassasin is always modified

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https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=178580

           Summary: /etc/sysconfig/spamassasin is always modified
           Product: Fedora Core
           Version: devel
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: normal
         Component: spamassassin
        AssignedTo: wtogami at redhat.com
        ReportedBy: wtogami at redhat.com
                CC: fedora-perl-devel-
                    list at redhat.com,felicity at kluge.net,jm at jmason.org,parkerm
                    @pobox.com,reg+redhat at sidney.com,wtogami at redhat.com


QA discovered that /etc/sysconfig/spamassasin is being replaced during every
package intallation or upgrade.

# -a and --auto-whitelist options were removed from 3.0.0
# prevent service startup failure
perl -p -i -e 's/(["\s]-\w+)a/$1/ ; s/(["\s]-)a(\w+)/$1$2/ ; s/(["\s])-a\b/$1/'
/etc/sysconfig/spamassassin
perl -p -i -e 's/ --auto-whitelist//' /etc/sysconfig/spamassassin

Since FC3 spamassassin.spec %post contained this to remove user added options
during an upgrade from pre-3.0 SA that caused the new version to fail.  QA
discovered that this perl syntax actually creates another file and deletes the
original file.  This means that even if no change happens, the file has a
different timestamp and selinux security context.

Impact:
Not much, but it should be fixed some time in the future.

Fix:
This probably involves testing before doing the modification in order to avoid
an unnecessary replacement.  In the replacement case chcon is needed in order to
maintain the correct selinux context.

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