Aria2 rpc based progress monitor for apt-fast in non-interactive shells.

apt-fast-progress.sh

#!/bin/sh

# Aria2 rpc based progress output for apt-fast
# trigger using --on-download-complete callback.

# Provide bytesNeeded in the parent environment...
#	 apturis=$(apt-get -qq --print-uris "$@")
#	 export DLLISTBYTES=$( echo "$apturis"| awk -F " " '{bytes+=$3} END{print bytes}' )

aria2_rpc () {
	http --ignore-stdin localhost:6800/jsonrpc id=apt-fast method=aria2.$1
}

export $( aria2_rpc getGlobalStat | jq -r '.result|to_entries[]|join("=")' )
bytesNeeded=$DLLISTBYTES
bytesDownloaded=$(du -bcs $(dirname -- $3)/* | tail -1 | cut -f1)
numUris=$(( numActive + numStopped + numWaiting ))
timeElapsed=$(ps -p $(pgrep -f '^aria2c*' --oldest) -o etime= | tr -d " ")

if [ "$numStopped" = "$numUris" ]; then
	# Shutdown aria2 when queue is exhausted.
	printf \
		"Pre-Fetched %s [%s] in %s (%s) from %s packages.$(tput el)\n" \
	  $( numfmt --to si --suffix="B" --round nearest $bytesDownloaded ) \
		$( numfmt --to iec-i --suffix="B" --round nearest $bytesDownloaded ) \
		$timeElapsed \
		$( numfmt --to iec-i --suffix="B/s" $downloadSpeed ) \
		$numUris
	aria2_rpc shutdown > /dev/null
else
	exec 1>&2
	printf \
	  "\r%s %3s%% [ %s / %s @ %s ][ W: %d A: %d S: %d / %d (%s%%) ]$(tput el)" \
		$timeElapsed \
		$(( bytesDownloaded * 100 / bytesNeeded )) \
		$( numfmt --to iec-i --suffix="B" --round nearest $bytesDownloaded ) \
		$( numfmt --to iec-i --suffix="B" --round nearest $bytesNeeded ) \
		$( numfmt --to iec-i --suffix="B/s" $downloadSpeed ) \
		$numWaiting \
		$numActive \
		$numStopped \
		$numUris \
		$(( numStopped * 100 / numUris ))
fi

Revision assumes usage of apt-fast that exports needed byte count info...

See apt-fast pull request.

Updated the output example to represent the apt-fast output from the PR.

Fixed download queue percentage indicator to not be a fixed 3 digit width.

• Get download path from completed file argument.
• output intermediate progress info to stderror
• give final output on stdout

hi thell, how could apt-fast-progress be used?
An example??

See https://github.com/Thell/ddash along with some usage in the dockerfiles associated with https://github.com/Thell/dockerfiles/tree/master/scripts.

Good Luck! Have Fun!