test/shaping/record-test.sh

   1 #!/bin/bash
   2
   3 dir=`mktemp -d`
   4
   5 out=/dev/stdout
   6 if test "x$1" == 'x-o'; then
   7         shift
   8         out=$1
   9         shift
  10 fi
  11 hb_shape=$1
  12 shift
  13 fontfile=$1
  14 if test "x${fontfile:0:1}" == 'x-'; then
  15         echo "Specify font file before other options." >&2
  16         exit 1
  17 fi
  18 shift
  19 if ! echo "$hb_shape" | grep -q 'hb-shape'; then
  20         echo "Specify hb-shape (not hb-view, etc): got "$hb_shape"." >&2
  21         exit 1
  22 fi
  23 options=
  24 have_text=false
  25 for arg in "$@"; do
  26         if test "x${arg:0:1}" == 'x-'; then
  27                 if echo "$arg" | grep -q ' '; then
  28                         echo "Space in argument is not supported: '$arg'." >&2
  29                         exit 1
  30                 fi
  31                 options="$options${options:+ }$arg"
  32                 continue
  33         fi
  34         if $have_text; then
  35                 echo "Too many arguments found...  Use '=' notation for options: '$arg'" >&2
  36                 exit 1;
  37         fi
  38         text="$arg"
  39         have_text=true
  40 done
  41 if ! $have_text; then
  42         text=`cat`
  43 fi
  44 unicodes=`echo "$text" | ./hb-unicode-decode`
  45 glyphs=`echo "$text" | $hb_shape $options "$fontfile"`
  46 if test $? != 0; then
  47         echo "hb-shape failed." >&2
  48         exit 2
  49 fi
  50 glyph_ids=`echo "$text" | $hb_shape $options --no-glyph-names --no-clusters --no-positions "$fontfile" | sed 's/[][]//g; s/|/,/g'`
  51
  52 cp "$fontfile" "$dir/font.ttf"
  53 echo fonttools subset \
  54         --glyph-names \
  55         --no-hinting \
  56         --layout-features='*' \
  57         "$dir/font.ttf" \
  58         --gids="$glyph_ids" \
  59         --text="$text"
  60 fonttools subset \
  61         --glyph-names \
  62         --no-hinting \
  63         --layout-features='*' \
  64         "$dir/font.ttf" \
  65         --gids="$glyph_ids" \
  66         --text="$text"
  67 if ! test -s "$dir/font.subset.ttf"; then
  68         echo "Subsetter didn't produce nonempty subset font in $dir/font.subset.ttf" >&2
  69         exit 2
  70 fi
  71
  72 # Verify that subset font produces same glyphs!
  73 glyphs_subset=`echo "$text" | $hb_shape $options "$dir/font.subset.ttf"`
  74
  75 if ! test "x$glyphs" = "x$glyphs_subset"; then
  76         echo "Subset font produced different glyphs!" >&2
  77         echo "Perhaps font doesn't have glyph names; checking visually..." >&2
  78         hb_view=${hb_shape/shape/view}
  79         echo "$text" | $hb_view $options "$dir/font.ttf" --output-format=png --output-file="$dir/orig.png"
  80         echo "$text" | $hb_view $options "$dir/font.subset.ttf" --output-format=png --output-file="$dir/subset.png"
  81         if ! cmp "$dir/orig.png" "$dir/subset.png"; then
  82                 echo "Images differ.  Please inspect $dir/*.png." >&2
  83                 echo "$glyphs" >> "$out"
  84                 echo "$glyphs_subset" >> "$out"
  85                 exit 2
  86         fi
  87         echo "Yep; all good." >&2
  88         rm -f "$dir/orig.png"
  89         rm -f "$dir/subset.png"
  90         glyphs=$glyphs_subset
  91 fi
  92
  93 sha1sum=`sha1sum "$dir/font.subset.ttf" | cut -d' ' -f1`
  94 subset="data/in-house/fonts/$sha1sum.ttf"
  95 mv "$dir/font.subset.ttf" "$subset"
  96
  97 # There ought to be an easier way to do this, but it escapes me...
  98 unicodes_file=`mktemp`
  99 glyphs_file=`mktemp`
 100 echo "$unicodes" > "$unicodes_file"
 101 echo "$glyphs" > "$glyphs_file"
 102 # Open the "file"s
 103 exec 3<"$unicodes_file"
 104 exec 4<"$glyphs_file"
 105 relative_subset="$subset"
 106 if test "$out" != "/dev/stdout"; then
 107         relative_subset="$(/usr/bin/python -c 'import os, sys; print (os.path.relpath (sys.argv[1], sys.argv[2]))' "$subset" "$(dirname "$out")")"
 108 fi
 109 while read uline <&3 && read gline <&4; do
 110         echo "$relative_subset:$options:$uline:$gline" >> "$out"
 111 done
 112
 113
 114 rm -f "$dir/font.ttf"
 115 rmdir "$dir"