test/shaping/record-test.sh

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