#!/bin/sh # # schhist2web - Web-browseable graphical revision history of schematics # # Written 2010 by Werner Almesberger # Copyright 2010 Werner Almesberger # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # OUTDIR=_out THUMB_OPTS="-w 3 -d 60 -c 0.5,0.5,0.5 -n 1,1,0" BG_COLOR="f0f0ff" FNAME_COLOR="#b0f0ff" SEP_COLOR="#000000" 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" } symlink() { local old=$1 new=$2 local src=`dirname "$new"`/$old if [ -L "$src" ]; then ln -sf "`readlink \"$src\"`" "$new" else ln -sf "$old" "$new" fi } commit_entry() { # usage: commit_entry # note: the repository's base in $dir must be provided by the caller local dir=$1 next=$2 cat < EOF echo "
"
    ( cd "$dir" && git show --pretty=short --quiet $next; ) |
      if [ -z "$SCHHIST_COMMIT_TEMPLATE" ]; then
	cat
      else
	url=`echo "$SCHHIST_COMMIT_TEMPLATE" | sed "s/{}/$next/g"`
	sed "s|^commit |commit |"
      fi |
      sed '/^<.*>commit/\>/g'
    echo "
" } usage() { cat <&1 usage: $0 [-c cache-dir] [-n] [-S] [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) -c cache-dir cache directory (default: same as out-dir) -n don't use previous cache content (rebuild the cache) -S sanitize KiCad profile EOF exit 1 } # --- Parse command-line options ---------------------------------------------- no_cache=false sanitize= while true; do case "$1" in -n) no_cache=true shift;; -c) [ -z "$1" ] && usage cache="$1" shift 2;; -S) sanitize=-S shift;; -*) usage;; *) break;; esac done # --- Interpret the command-line arguments ------------------------------------ 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/${1%.sch}.pro" ]; then sch="$1" shift else for n in "$dir"/*.sch; do [ -f "${n%.sch}.pro" ] || continue if [ ! -z "$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 # --- Set up some variables and the directories for cache and output ---------- 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" $no_cache && rm -rf "$cache" mkdir -p "$out/names" mkdir -p "$cache" ppmmake '#e0e0e0' 5 30 | pnmtopng >"$out"/unchanged.png # --- Generate/update the cache ----------------------------------------------- head= for n in $first `cd "$dir" && git rev-list --reverse $first..HEAD`; do ( cd "$dir" && git show --pretty=format:'' --name-only $n; ) | egrep -q '\.sch$|\.pro$|\.lib$' || continue 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 trap "rm -rf \"$cache/ppm_$n\" \"$cache/fat_$n\"" 0 if [ ! -d "$cache/ppm_$n" ]; then rm -rf "$cache/ppm_$n" mkdir "$cache/ppm_$n" # # potential optimization here: remember Postscript files from previous # run (or their md5sum) and check if they have changed. If not, skip # the ghostscript run and just put a symlink, replacing the less # efficient optimization below. # gitsch2ppm $sanitize -k "$dir" "$schname" $n "$cache/ppm_$n" || exit gitsch2ppm -c -w 500 "$dir" "$schname" $n "$cache/fat_$n" || exit fi for m in "$cache/ppm_$n/"*; do [ "$m" = "$cache/ppm_$n/*" ] && break if [ ! -z "$head" ]; then prev="$cache/ppm_$head"/`basename "$m"` if [ -r "$prev" ] && cmp -s "$prev" "$m"; then symlink "../ppm_$head"/`basename "$m"` "$m" symlink "../fat_$head"/`basename "$m"` \ "$cache/fat_$n"/`basename "$m"` fi fi touch "$out/names/"`basename "$m" .ppm` done trap 0 head=$n done if [ -z "$head" ]; then echo "no usable head found" 2>&1 exit 1 fi # --- Title of the Web page and table header ---------------------------------- index="$out/index.html" { cat < EOF if [ ! -z "$SCHHIST_TITLE" ]; then echo "$SCHHIST_TITLE" fi echo "" if [ ! -z "$SCHHIST_TITLE" ]; then echo "

" [ -z "$SCHHIST_HOME_URL" ] || echo "" echo "$SCHHIST_TITLE" [ -z "$SCHHIST_HOME_URL" ] || echo "" echo "

" fi cat < EOF for m in `ls -1 "$out/names"`; do echo "$m" done } >"$index" # --- Diff all the revisions, newest to oldest -------------------------------- next="$head" for n in `cd "$dir" && git rev-list $first..HEAD~1` $first; do [ -d "$cache/ppm_$n" ] || continue empty=true s="" mkdir -p "$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="$s" if ! pngdiff cat "$diff" "$a" "$b"; then s="$s>"$index" s= empty=false echo "" >>"$index" done if ! $empty; then echo "$s" >>"$index" commit_entry "$dir" $next >>"$index" fi next=$n done # --- Add creation entries for all files in the first commit ------------------ if [ -d "$cache/ppm_$next" ]; then # could this ever be false ? empty=true echo "" >>"$index" mkdir -p "$out/diff_$next" "$out/thumb_$next" for m in `ls -1 "$out/names"`; do ppm="$cache/ppm_$next/$m.ppm" fat="$cache/fat_$next/$m.ppm" diff="$out/diff_$next/$m.png" thumb="$out/thumb_$next/$m.png" echo "" >>"$index" [ -f "$ppm" ] || continue pngdiff cat "$diff" -f -c 0,1,0 "$ppm" "$ppm" || exit pngdiff shrink "$thumb" -f $THUMB_OPTS -c 0,1,0 "$fat" "$fat" \ || exit empty=false echo "" >>"$index" done if ! $empty; then echo "" >>"$index" commit_entry "$dir" $next >>"$index" fi fi # --- Finish ------------------------------------------------------------------ cat <>"$index"
`date -u '+%F %X'` UTC EOF