#!/bin/bash
# xclash - detect file conflicts between XBPS packages

comm -23 <(xbps-query --regex -Ro '' |
		sed 's/ *([^)]*)$//; s|-[^-]*: | |; /-dbg /d; /-32bit /d; /chroot-/d' | sort | 
		awk '{f[$2][length(f[$2])]=$1}
			END {
			for(pkg in f)
			if (length(f[pkg])>1)
			for (i = 0; i < length(f[pkg]); i++)
			for (j = i+1; j < length(f[pkg]); j++)
			if (f[pkg][i] != f[pkg][j])
			print f[pkg][i], f[pkg][j]
			}' | sort -u ) \
	<({
		xbps-query -R -s '' -p conflicts
		xbps-query -R -s '' -p replaces
	 } | sed 's/ *([^)]*)$//; s|-[^-]*: | |; s/[<>].*//; /-dbg /d' |
		awk '{ if($1<$2) print $1, $2; else print $2, $1 }' |
	       	sort -u ) |
while read pkg1 pkg2; do
	echo "$pkg1 and $pkg2 conflict for"
	comm -12 <(xbps-query -Rf $pkg1 | sed 's/ ->.*//' | sort -u) \
		<(xbps-query -Rf $pkg2 | sed 's/ ->.*//' | sort -u)
	echo
done