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#!/bin/sh
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# Small zsync wrapper so we can get a pretty spinner while it works...
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./fbink -q -y -7 -pmh 'Computing zsync delta !'
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# Clear any potential leftover from the local OTA tarball creation.
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./fbink -q -y -6 -pm ' '
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# Spin in the background while we work ;).
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(
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# See https://stackoverflow.com/questions/2685435 for inspiration
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# as well as https://www.npmjs.com/package/cli-spinners
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# & https://github.com/swelljoe/spinner
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# http://www.fileformat.info/info/unicode/block/block_elements/list.htm
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##
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# Simple bars, they look better when a bit smoother, with a snappier interval (~250ms)
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#SPINNER="<22> ▁ ▂ ▃ ▄ ▅ ▆ ▇ █ ▇ ▆ ▅ ▄ ▃ ▂ ▁"
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#SPINNER="<22> ▏ ▎ ▍ ▌ ▋ ▊ ▉ █ ▉ ▊ ▋ ▌ ▍ ▎ ▏"
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# Spinning blocks
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SPINNER="▖ ▘ ▝ ▗"
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#SPINNER="▜ ▟ ▙ ▛"
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# Snaking blocks
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#SPINNER="▌ ▀ ▐ ▄"
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#SPINNER="▌ ▛ ▀ ▜ ▐ ▟ ▄ ▙"
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while :; do
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for spin in ${SPINNER}; do
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usleep 500000
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# NOTE: Throw stderr to the void because I'm cheating w/ U+FFFD for a blank character,
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# which FBInk replaces by a blank, but not before shouting at us on stderr ;).
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./fbink -q -y -7 -pmh "Computing zsync delta ${spin}" 2>/dev/null
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done
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done
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) &
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# Launch zsync, and remember its exit code...
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./zsync "$@"
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rc=$?
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# Kill the spinner subshell now that we're done
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kill -15 $!
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# And return with zsync's exit code, not kill's ;).
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exit ${rc}
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