test/shaping/record-test.sh

   1 #!/bin/bash
   2
   3 dir=`mktemp -d`
   4
   5 if which sha1sum 2>/dev/null >/dev/null; then
   6         SHA1SUM=sha1sum
   7 elif which shasum 2>/dev/null >/dev/null; then
   8         SHA1SUM='shasum -a 1'
   9 elif which digest 2>/dev/null >/dev/null; then
  10         SHA1SUM='digest -a sha1'
  11 else
  12         echo "'sha1sum' not found"
  13         exit 2
  14 fi
  15
  16 out=/dev/stdout
  17 if test "x$1" == 'x-o'; then
  18         shift
  19         out=$1
  20         shift
  21 fi
  22 hb_shape=$1
  23 shift
  24 fontfile=$1
  25 if test "x${fontfile:0:1}" == 'x-'; then
  26         echo "Specify font file before other options." >&2
  27         exit 1
  28 fi
  29 shift
  30 if ! echo "$hb_shape" | grep -q 'hb-shape'; then
  31         echo "Specify hb-shape (not hb-view, etc): got "$hb_shape"." >&2
  32         exit 1
  33 fi
  34 options=
  35 have_text=false
  36 for arg in "$@"; do
  37         if test "x${arg:0:1}" == 'x-'; then
  38                 if echo "$arg" | grep -q ' '; then
  39                         echo "Space in argument is not supported: '$arg'." >&2
  40                         exit 1
  41                 fi
  42                 options="$options${options:+ }$arg"
  43                 continue
  44         fi
  45         if $have_text; then
  46                 echo "Too many arguments found...  Use '=' notation for options: '$arg'" >&2
  47                 exit 1;
  48         fi
  49         text="$arg"
  50         have_text=true
  51 done
  52 if ! $have_text; then
  53         text=`cat`
  54 fi
  55 unicodes=`echo "$text" | ./hb-unicode-decode`
  56 glyphs=`echo "$text" | $hb_shape $options "$fontfile"`
  57 if test $? != 0; then
  58         echo "hb-shape failed." >&2
  59         exit 2
  60 fi
  61 glyph_ids=`echo "$text" | $hb_shape $options --no-glyph-names --no-clusters --no-positions "$fontfile" | sed 's/[][]//g; s/|/,/g'`
  62
  63 cp "$fontfile" "$dir/font.ttf"
  64 echo fonttools subset \
  65         --glyph-names \
  66         --no-hinting \
  67         --layout-features='*' \
  68         "$dir/font.ttf" \
  69         --gids="$glyph_ids" \
  70         --text="$text"
  71 fonttools subset \
  72         --glyph-names \
  73         --no-hinting \
  74         --layout-features='*' \
  75         "$dir/font.ttf" \
  76         --gids="$glyph_ids" \
  77         --text="$text"
  78 if ! test -s "$dir/font.subset.ttf"; then
  79         echo "Subsetter didn't produce nonempty subset font in $dir/font.subset.ttf" >&2
  80         exit 2
  81 fi
  82
  83 # Verify that subset font produces same glyphs!
  84 glyphs_subset=`echo "$text" | $hb_shape $options "$dir/font.subset.ttf"`
  85
  86 if ! test "x$glyphs" = "x$glyphs_subset"; then
  87         echo "Subset font produced different glyphs!" >&2
  88         echo "Perhaps font doesn't have glyph names; checking visually..." >&2
  89         hb_view=${hb_shape/shape/view}
  90         echo "$text" | $hb_view $options "$dir/font.ttf" --output-format=png --output-file="$dir/orig.png"
  91         echo "$text" | $hb_view $options "$dir/font.subset.ttf" --output-format=png --output-file="$dir/subset.png"
  92         if ! cmp "$dir/orig.png" "$dir/subset.png"; then
  93                 echo "Images differ.  Please inspect $dir/*.png." >&2
  94                 echo "$glyphs" >> "$out"
  95                 echo "$glyphs_subset" >> "$out"
  96                 exit 2
  97         fi
  98         echo "Yep; all good." >&2
  99         rm -f "$dir/orig.png"
 100         rm -f "$dir/subset.png"
 101         glyphs=$glyphs_subset
 102 fi
 103
 104 sha1sum=`$SHA1SUM "$dir/font.subset.ttf" | cut -d' ' -f1`
 105 subset="data/in-house/fonts/$sha1sum.ttf"
 106 mv "$dir/font.subset.ttf" "$subset"
 107
 108 # There ought to be an easier way to do this, but it escapes me...
 109 unicodes_file=`mktemp`
 110 glyphs_file=`mktemp`
 111 echo "$unicodes" > "$unicodes_file"
 112 echo "$glyphs" > "$glyphs_file"
 113 # Open the "file"s
 114 exec 3<"$unicodes_file"
 115 exec 4<"$glyphs_file"
 116 relative_subset="$subset"
 117 if test "$out" != "/dev/stdout"; then
 118         relative_subset="$(/usr/bin/env python3 -c 'import os, sys; print (os.path.relpath (sys.argv[1], sys.argv[2]))' "$subset" "$(dirname "$out")")"
 119 fi
 120 while read uline <&3 && read gline <&4; do
 121         echo "$relative_subset:$options:$uline:$gline" >> "$out"
 122 done
 123
 124
 125 rm -f "$dir/font.ttf"
 126 rmdir "$dir"