Proposal: Web font builds

[chrissimpkins]

woff is supported in all modern browsers. TTF, EOT, and SVG web fonts are no longer recommended.

Suggest that we build woff (+/- woff2) files only for web font releases.

• convert to woff + woff2 only web font build?
• subset web font build - ASCII + Latin-1 + Latin Extended A subset for web fonts
• create web font build scripts - added build-woff.sh & build-woff2.sh & build-subsets.sh
• add make approach for webfont builds ($ make webfonts)
• evaluate the glyphs contained in the web font subsets to confirm that defined glyphs are included
• confirm that middle dot glyph is defined in bold italic web font subset. It is included in full set but not in subset (and is included in all other subsets) see Proposal: Web font builds #286 (comment) - the .glif file was missing. This has been fixed in PR Middle dot (U+00B7) fixes for bold and bold italic sets #320

[chrissimpkins]

web font build scripting is underway in the dev-build-scripts branch.

[chrissimpkins]

woff browser support from https://caniuse.com/#feat=woff

[chrissimpkins]

woff2 browser support from https://caniuse.com/#feat=woff2

[chrissimpkins]

Scripting for ttf to woff build is now available in build-web.sh build-woff.sh script dev-build-scripts branch.

To install dependencies before the build, use:

$ ./build-woff.sh --install-dependencies

All subsequent builds:

$ ./build-woff.sh

Builds currently land on the path build/web/*.woff

[chrissimpkins]

Added new build-woff2.sh script in dev-build-scripts branch. Builds woff2 web fonts from ttf build files. I confirmed that there is a significant compression advantage c/w the woff files. (~150kb to ~100kb).

We will plan to release both woff and woff2 web font builds.

woff2 build adds a new build dependency = https://github.com/source-foundry/woff2

This is a fork of the Google woff2 repo that is tracking upstream changes and fixes a Makefile bug (google/woff2#73) with compiles on OSX with fix from https://github.com/JLHwung/woff2/tree/fix-macos-compilation-error. @JLHwung Makefile changes are merged to master branch of the Source Foundry fork.

Builds work identical to build-woff.sh script (see #286 (comment)):

To install dependencies before the build, use:

$ ./build-woff2.sh --install-dependencies

All subsequent builds:

$ ./build-woff2.sh

Builds are on path build/web/*.woff2.

[chrissimpkins]

4748b6e adds ASCII + Latin-1 + Latin Extended A glyph name subset data to the lib.plist file.

This will allow us to create a web font subset build that will be smaller in filesize.

[chrissimpkins]

PR #291 under review for contents of the ASCII + Latin-1 + Latin Extended A glyph names.

[chrissimpkins]

new build-subsets.sh script added and updated to version passing tests as of 14f8d41

This completes the build process from UFO to ttf to woff/woff2 to woff/woff2 subsets.

[chrissimpkins]

Final web font subsets require examination to confirm the glyphs in the sets.