Update for nanoemoji 0.4.1 and picosvg 0.7.2

- Itʼs suggested in googlefonts/nanoemoji#157 that we donʼt apply scaling by transforming the root `svg` element, but rather by enclosing the body of the SVG in an element that applies the transform.
- Recent nanoemoji versions are configured with a file rather than on the command line.

helpers/generate-ttf.sh

@@ -12,23 +12,31 @@ name=OpenMoji-${saturation^}
 
 mkdir -p "$build_dir"
 rsync -ru "/mnt/$saturation/svg/" "$build_dir/scale/"
-grep -FL 'transform="scale(1.3)"' "$build_dir"/scale/*.svg \
- | xargs --no-run-if-empty \
- xmlstarlet edit \
- --inplace \
- --omit-decl \
- -N svg=http://www.w3.org/2000/svg \
- --delete '/svg:svg/@transform' \
- --insert '/svg:svg' \
- --type attr \
- --name transform \
- --value 'translate(36 0) scale(1.3) translate(-36 0)'
-
-nanoemoji \
- --color_format="$format" \
- --build_dir="$build_dir" \
- --output_file="$build_dir/$name.$format.ttf" \
- "$build_dir"/scale/*.svg
+grep -FL '<g transform="translate(36 0) scale(1.3) translate(-36 0)">' \
+ "$build_dir"/scale/*.svg \
+ | xargs --no-run-if-empty \
+ sed -E -i \
+ -e 's/(<svg .*>)/\1\n<g transform="translate(36 0) scale(1.3) translate(-36 0)">/;' \
+ -e 's/(<\/svg>)/<\/g>\n\1/;'
+
+cat >"$build_dir/$name.toml" <<-EOF
+ output_file = "$build_dir/$name.$format.ttf"
+ color_format = "$format"
+
+ [axis.wght]
+ name = "Weight"
+ default = 400
+
+ [master.regular]
+ style_name = "Regular"
+ srcs = ["$build_dir/scale/*.svg"]
+
+ [master.regular.position]
+ wght = 400
+EOF
+
+nanoemoji --build_dir="$build_dir" \
+ --config="$build_dir/$name.toml"
 
 sed "s/Color/${saturation^}/;" \
  /mnt/font/OpenMoji-Color.ttx \