WaLLy3K 6830b08723 Clean up and optimise Gravity ...

* Shellcheck validation
* Made variable names, function names, comments and output clearer to understand
* Quoted and braced variables and conditionals
* Fix adlists.list handling logic, and remove any CR line endings
* Make CP/MV/RM provide user-friendly output upon failure
* Change adlists.list retrieval logic
* Moved and fixed adlists.list domain parsing logic
* Create gravity_ParseFileAsDomains() function to handle parsing of source files
* If no changes to a list is detected, print no output
* Ensure each source blocklist has a final newline
* Format number output as currency
* Make array of adlists domain sources unique to prevent redundant whitelisting
* Merged bash IPv4/IPv6 hosts formatting IF statement into an awk one-liner
* Trap Ctrl-C cancellations and run gravity_Cleanup()
* Use new gravity_Cleanup() function on errors and script completion
* Ensure that dnsmasq uses force-reload when gravity is invoked
* Add --wildcard option to ensure dnsmasq is restarted upon b/wlisting of a wildcard

Signed-off-by: WaLLy3K <wally3k@pi-hole.net>

2017-07-24 21:24:34 +10:00

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