Split gitsch2ppm into its constituents.

- scripts/gitsch2ps: generate PS files for KiCad schematics in git
- scripts/normalizeschps: normalize eeschema Postscript
- scripts/schps2ppm: generate PPM files from normalized Eeschema Postscript
- scripts/gitsch2ppm: wrapper and cache manager for the above scripts

scripts/gitsch2ppm

@@ -12,36 +12,6 @@
 #
 
 
-RES=1280x850
-LINEWIDTH=120
-
-
-ps2ppm()
-{
-    X=`echo $RES | sed 's/x.*//'`
-    Y=`echo $RES | sed 's/.*x//'`
-    IRES=${Y}x$X
-    res=`expr 72 \* $X / 800`
-
-    ( cat <<EOF
-%!PS-Adobe-3.0
-/setlinewidth { $LINEWIDTH 2 copy lt { exch } if pop setlinewidth } bind def
-/rectfill { rectstroke } bind def
-EOF
-    sed <"$1" '1d
-/%%DocumentMedia: A4.*/a-20 -10 translate
-/%%DocumentMedia: A3.*/{s/A3/A4/;a-20 -10 translate 0.70 dup scale
-}
-/%%DocumentMedia: A2.*/{s/A2/A4/;a-18 -12 translate 0.49 dup scale
-}
-/%%Orientation: Landscape/d'; ) |
-	gs -sDEVICE=ppmraw -sOutputFile=- -g$IRES -r$res \
-	  -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -q - |
-	  pnmflip -r270 |
-	  cat >"${1%.ps}.ppm"
-}
-
-
 usage()
 {
     cat <<EOF 1>&2
@@ -59,7 +29,9 @@ EOF
 
 cache=false
 keep=false
-sanitize=true
+res=
+sanitize=
+width=
 while true; do
     case "$1" in
     -c)	cache=true
@@ -67,13 +39,12 @@ while true; do
     -k)	keep=true
 	shift;;
     -r)	[ -z "$2" ] && usage
-	RES="$2"
+	res="-r $2"
 	shift 2;;
-    -S) sanitize=`PATH="$PATH":\`dirname "$0"\` which sanitize-profile`
-	[ "$sanitize" = "${sanitize#/}" ] && sanitize=`pwd`/"$sanitize"
+    -S) sanitize=-S
 	shift;;
     -w)	[ -z "$2" ] && usage
-	LINEWIDTH="$2"
+	width="-r $2"
 	shift 2;;
     -*)
 	usage;;
@@ -82,53 +53,30 @@ while true; do
     esac
 done
 
-[ ! -z "$3" -a -z "$5" ] || usage
-dir="$1"
-schem="$2"
-sdir=`dirname "$schem"`
-if [ -z "$4" ]; then
-    commit=HEAD
-    outdir="$3"
-else
-    commit="$3"
-    outdir="$4"
-fi
+tmp=`pwd`/_gitsch2ppm
+eval outdir=\${$#}
 
-[ "$dir" != "${dir#/}" ] || dir=`pwd`/$dir
-
-[ "$commit" != HEAD -o -f "$dir/$schem" ] || usage
-[ -d "$dir/.git" ] || usage
-
-tmp="$dir/../_gitsch2ppm"
-sch="$tmp/$sdir"
+# with thanks to http://www.faqs.org/faqs/unix-faq/faq/part2/section-12.html
+argv=
+while [ $# -gt 1 ]; do
+    argv="$argv \"$1\""
+    shift
+done
+eval set x "$argv"
+shift
 
 if ! $cache; then
     rm -rf "$tmp"
     rm -rf "$outdir"
-
-    git clone -s -n "$dir/.git" "$tmp" || exit
-    ( cd "$tmp" && git checkout -q "$commit"; ) || exit
-
-    if [ ! -f "$tmp/$schem" ]; then
-        echo "$schem not found (checked out into $tmp)" 1>&2
-        exit 1
-    fi
-
-    (
-	cd "$sch" || exit
-	rm -f *.ps *.ppm
-	$sanitize "$tmp/${schem%.sch}.pro" ||
-	  exit
-	eeschema --plot "$tmp/$schem"
-    ) || exit
+    gitsch2ps $sanitize "$@" "$tmp"
+    for n in "$tmp"/*.ps; do
+	normalizeschps $width "$n"
+    done
 fi
 
-for n in "$sch"/*.ps; do
-    ps2ppm "$n"
+mkdir -p "$outdir"
+for n in "$tmp"/*.ps; do
+    schps2ppm $res "$n" "$outdir/`basename \"${n%.ps}.ppm\"`"
 done
 
-mkdir -p "$outdir"
-
-mv "$sch"/*.ppm "$outdir"
-
 $keep || rm -rf "$tmp"