test/shaping/record-test.sh

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