mergetime

#!/usr/bin/awk -f
function p(s)
{
	days = int(s / 86400)
	hours = int((s -= days * 86400) / 3600)
	mins = int((s -= hours * 3600) / 60)
	secs = s - mins * 60

	if (days > 0)
		return sprintf("%dd %dh %02dm %02ds", days, hours, mins, secs)

	if (hours > 0)
		return sprintf("%dh %02dm %02ds", hours, mins, secs)

	if (mins > 0)
		return sprintf("%dm %02ds", mins, secs)

	return sprintf("%ds", secs)
}

BEGIN {
	YELLOW=""
	GRAY=""
	NORMAL=""

	VERBOSE = 0
	COLOR = 1
	for (i = 1; i < ARGC; i++) {
		if (ARGV[i] == "all")
			VERBOSE = 1
		else if (ARGV[i] == "nocolor")
			COLOR = 0
	}

	# Get installed packages from eix because the log messes up when package names changes
	while ("eix -I --format '<installedversions:NAMEVERSION>' --pure-packages" | getline)
		installed[$1] = 1

	while (getline < "/var/log/emerge.log")

		if ($2 == "===" && $6 == "Compiling/Merging") {
			patsplit($7, a, "[^(:]+")
			pkg = a[1]
			start[pkg] = $1

		} else if ($2 == "===" && $6 == "Merging") {
			patsplit($7, a, "[^(:]+")
			pkg = a[1]
			diff = $1 - start[pkg]

			if (start[pkg] == 0)
				continue
			else
				start[pkg] = 0

			if (diff < min[pkg] || min[pkg] == 0)
				min[pkg] = diff

			if (diff > max[pkg])
				max[pkg] = diff

			last[pkg] = diff
			sum[pkg] += diff
			count[pkg]++
		}


	sort = "sort -n"
	for (pkg in sum)
		if (installed[pkg]) {

			if (VERBOSE)
				printf "%6d %15s %15s %15s %15s      %s\n", min[pkg], p(last[pkg]), p(min[pkg]), p(sum[pkg]/count[pkg]), p(max[pkg]), pkg |& sort
			else
				printf "%6d %15s      %s\n", min[pkg], p(min[pkg]), pkg |& sort

			sum_min += min[pkg]
			sum_avg += sum[pkg]/count[pkg]
			sum_max += max[pkg]
			sum_last += last[pkg]
		}
	close(sort, "to")

	i = 0
	while (sort |& getline) {
		if (COLOR) {
			if (++i % 10 == 0)
				printf "%s", NORMAL
			else if (i % 5 == 0)
				printf "%s", GRAY
		}
		print
	}

	if (COLOR)
		printf "%s", YELLOW
	if (VERBOSE) {
		printf "---------------- last ----------- min ----------- avg ----------- max ------------------------------------------------\n"
		printf "%6d %15s %15s %15s %15s\n", sum_min, p(sum_last), p(sum_min), p(sum_avg), p(sum_max)
	} else {
		printf "----------------- min ------------------------------------------------\n"
		printf "%6d %15s\n", sum_min, p(sum_min)
	}
}