#!/bin/sh OUTDIR=_out THUMB_OPTS="-w 3 -d 60 -c 0.5,0.5,0.5 -n 1,1,0" shrink() { pnmscale -width 120 "$@" || exit } pngdiff() { # pngdiff preproc outfile arg ... pp="$1" of="$2" shift 2 if ! PATH=$PATH:`dirname $0`/ppmdiff ppmdiff "$@" "$out/_tmp"; then rm -f "$out/_tmp" return 1 fi $pp "$out/_tmp" | pnmtopng >"$of" rm "$out/_tmp" } usage() { cat <&1 usage: $0 [-c cache-dir] [-n] [top-dir] [top-schem] [out-dir] top-dir top-level directory of the git archive (default: locate it) top-schem root sheet of the schematics (default: locate it in top-dir) out-dir output directory (default: $OUTDIR) -n don't use previous cache content (rebuild the cache) -c cache-dir cache directory (default: same as out-dir) EOF exit 1 } no_cache=false while true; do case "$1" in -n) no_cache=true;; -c) [ -z "$1" ] && usage cache="$1" shift;; -*) usage;; *) break;; esac done if [ ! -z "$1" -a -d "$1/.git" ]; then dir="$1" shift else dir=. while [ ! -d $dir/.git ]; do if [ $dir -ef $dir/.. ]; then echo "no .git/ directory found in hierarchy" 1>&2 exit 1 fi dir=$dir/.. done echo "found top-dir: $dir" 1>&2 fi if [ ! -z "$1" -a -f "$dir/$1" -a \ -f "$dir"/`dirname "$1"`/`basename "$1" .sch`.pro ]; then sch="$1" shift else for n in "$dir"/*.sch; do [ -f `dirname "$n"`/`basename "$n" .sch`.pro ] || continue if [ ! -z "$sch" ]; then echo "multiple choices for top-level .sch file" 1>&2 exit 1 fi sch="$n" done if [ -z "$sch" -o "$sch" = "$dir/*.sch" ]; then echo "no candidate for top-level .sch file found" 1>&2 exit 1 fi echo "found root sheet: $sch" 1>&2 fi if [ ! -z "$1" ] && [ ! -e "$1" ] || [ -d "$1" -a ! -d "$1"/.git ]; then out="$1" shift else out=$OUTDIR fi [ -z "$cache" ] && cache="$out" [ -z "$1" ] || usage PATH=`dirname "$0"`:"$PATH" first=`gitenealogy "$dir/$sch" | sed '$s/ .*//p;d'` schname=`gitenealogy "$dir/$sch" | sed '$s/^.* //p;d'` rm -rf "$out/diff_*" "$out/thumb_*" "$out/names" mkdir -p "$out/names" $no_cache && rm -rf "$cache" mkdir -p "$cache" for n in $first `git rev-list --reverse $first..HEAD`; do echo Processing $n new=`gitenealogy "$dir/$sch" | sed "/^$n /s///p;d"` if [ ! -z "$new" ]; then echo Name change $schname to $new 1>&2 schname="$new" fi if [ ! -d "$cache/ppm_$n" ]; then rm -rf "$cache/ppm_$n" mkdir "$cache/ppm_$n" gitsch2ppm "$dir" "$schname" $n "$cache/ppm_$n" || exit gitsch2ppm -w 500 "$dir" "$schname" $n "$out/fat_$n" || exit fi for m in "$cache/ppm_$n/"*; do [ "$m" = "$cache/ppm_$n/*" ] && break touch "$out/names/"`basename "$m" .ppm` done done index="$out/index.html" cat <"$index" EOF for m in `ls -1 "$out/names"`; do echo "" mkdir -p "$out/diff_$next" "$out/thumb_$next" for m in `ls -1 "$out/names"`; do a="$cache/ppm_$n/$m.ppm" fat_a="$cache/fat_$n/$m.ppm" b="$cache/ppm_$next/$m.ppm" fat_b="$cache/fat_$next/$m.ppm" diff="$out/diff_$next/$m.png" thumb="$out/thumb_$next/$m.png" if [ -f "$a" -a -f "$b" ]; then s="$s

$m" >>"$index" done head=`git rev-list HEAD~1..HEAD` next="$head" for n in `git rev-list $first..HEAD~1` $first; do empty=true s="

" pngdiff cat "$diff" "$a" "$b" || continue pngdiff shrink "$thumb" -f $THUMB_OPTS "$fat_a" "$fat_b" \ "$a" "$b" || exit elif [ -f "$a" ]; then s="$s

" pngdiff cat "$diff" -f -c 1,0,0 "$a" "$a" || exit pngdiff shrink "$thumb" -f -c 1,0,0 $THUMB_OPTS "$fat_a" "$fat_a" \ || exit elif [ -f "$b" ]; then s="$s

" pngdiff cat "$diff" -f -c 0,1,0 "$b" "$b" || exit pngdiff shrink "$thumb" -f -c 0,1,0 $THUMB_OPTS "$fat_b" "$fat_b" \ || exit else s="$s

" continue fi echo "$s" >>"$index" s= empty=false echo "

" >>"$index" done if ! $empty; then ( cat <

EOF mkdir -p "$out/diff_$next" "$out/thumb_$next" echo "

"
	    git log --pretty=short $n..$next
	    echo "

" ) >>"$index" fi next=$n done echo "

" >>"$index" exit 1