#!/bin/sh
#$Id$
# Create Adobe-PostScript file that graphically displays the output of
# dumpe2fs(8). Use "dumpe2fs | dconf" to create a PostScript file on stdout.
# Developed and tested for Linux 1.0.
# Copyright (c) 1994
# Ulrich Windl
# ALte Regensburger Strasse 11a
# D-93149 Nittenau, Germany
# <Ulrich.Windl@rz.uni-regensburg.de>
SELF=`basename $0`
AWKFILE=/tmp/${SELF}.awk
TEMPFILE=/tmp/${SELF}.tmp
echo '
BEGIN {
	print "B"
}
/^Inode count:/ {
	ic=$3; next
}
/^Block count:/ {
	bc=$3; next
}
/^First block:/ {
	fb=$3; next
}
/^Block size:/ {
	bs=$3; next
}
/^Blocks per group:/ {
	bpg=$4
	printf("BC %d\n", bpg)
	printf("GC %d\n", (bc + bpg - 1) / bpg)
	next
}
/^Inodes per group:/ {
	ipg=$4; next
}
/^Last write time:/ {
	lwtime=$0; gsub("Last write time:[ ]+", "", lwtime)
	printf("T %s\n", lwtime)
	next
}
/^Group [0-9]+:/ {
	group=$2; gsub(":", "", group)
	block=""
	group_start=group*bpg+fb
	group_end=group_start+bpg
	printf("G %d : %d - %d\n", group, group_start, group_end)
	next
}
/^[ ]+Free blocks: / {
	for ( i=3; i < NF; ++i ) {
		block=$i; gsub(",", "", block)
		if ( index(block, "-") == 0 ) block=block "-" block
		pos=index(block, "-")
		printf("FB %d-%d\n",
		       substr(block, 0, pos) - group_start,
		       substr(block, pos + 1) - group_start)
	}
	if ( block == "" ) printf("Group %d is full\n", group)
	print "----"
	next
}
END {
	printf("E %s\n", lwtime)
}' >$AWKFILE
awk -f $AWKFILE $* >$TEMPFILE
echo '
BEGIN {
        printf("%%!PS-Adobe\n")
        printf("%%%%BoundingBox: 0 0 1 1\n")
	printf("/rect {/y2 exch def /x2 exch def /y1 exch def /x1 exch def\n")
	printf("       newpath x1 y1 moveto x2 y1 lineto x2 y2 lineto\n")
	printf("       x1 y2 lineto closepath} def\n")
	printf("/fb {rect gsave 1.0 setgray fill grestore} def\n")
	printf("/dg {rect gsave gsave 0.0 setgray fill grestore\n")
	printf("     0.5 setgray stroke grestore} def\n")
	printf("/textxy {moveto show} bind def\n")
	printf("0.0001 setlinewidth\n")
}
$1 == "GC" && NF == 2 {
	number_of_groups=$2
	printf("/Times-Roman findfont %g scalefont setfont\n",
	       1.0 / number_of_groups)
	next
}
$1 == "BC" && NF == 2 {
	blocks_per_group=$2; next
}
$1 == "T" && NF > 1 {
	printf("(%s) %g %g textxy\n",
	       substr($0, 2), 0, 1.02)
	next
}
$1 == "G" && NF == 6 && $3 == ":" && $5 == "-" {
	group_index=$2
	gs=$4
	ge=$6
	height=1.0 / number_of_groups
	vstart=group_index * height
	printf("%% group %d of %d:\n0 %g 1 %g dg\n",
	       group_index, number_of_groups, vstart, vstart + height)
	printf("(Group %s) 1.02 %g textxy\n", group_index, vstart)
	next
}
$1 == "FB" && NF == 2 {
	pos = index($2, "-")
	printf("%% hole %s\n%g %g %g %g fb\n",
	       $2, substr($2, 0, pos) / blocks_per_group, vstart,
	       (substr($2, pos + 1) + 1) / blocks_per_group, vstart + height)
	next
}
END {
    	printf("%%%%EOF\n")
}
' >$AWKFILE
awk -f $AWKFILE $TEMPFILE