Right now we do this by hand. This makes it possible to do this
automatically. It also adds information to the nametable version
string about the commit the font was built from.
The alias/unicode data is ahead of the current image data, which means
a lot of images appear to be 'missing' when generating names for the
current data set. Make it possible to set/ignore the limit on the
number of missing images before an exception is thrown.
Some of our environments use python from /usr/local/bin. In these
environments using /usr/bin/python can cause unexpected behavior
since the python module search path is different. So use env
to find python using the PATH instead.
Once again we need to create aliases, slightly differently. In this
case we want to generate new copies of files, not symlinks, and
generate the copies in a new location. So add these options.
The emoji name tool is used to generate titles of emoji images in
pages on the get/noto web site, and group them into related sets.
The original emoji name tool in nototools was based on various
informal emoji name data files plus additional tweaks. Now there
is a standard source of this data and it is parsed by unicode_data
in nototools. So we start with that data.
The name data from there is designed for Unicode use and it not
quite appropriate for titles in this format. This tool tweaked
those names. This operates in much the same way, except the names
are a bit different when coming from the unicode_data source
and so require somewhat different tweaks.
The emoji alias data/code resides in noto-emoji, but the client for
this tool is in nototools, so it's a bit unclear where to put this.
To avoid circular dependencies, formerly we duplicated some flag
aliasing information in the nototools version. Now we're trying
the opposite approach, putting the tool in noto-emoji instead...
This is a simple recolor, starting from one of the non-generic sign of
the horns SVGs.
For programs that need both the base and the skin-tone modifier glyph,
this enables both the base (generic) sign of the horns emoji,
and also enables all the emoji versions with specific skin tones.
Apply patch from upstream 9c4f5f11802c 'Adjust shadow to equally
darken and lighten'. The waved flags were noticeably darker than
the source image, for example the blue of the Russian flag was too
dark.
Formerly when we were missing an image in the standard emoji sequence
we always labeled it as 'missing'. However, android excludes some
region flags, so we expect those to be missing and labeling them
implies an error. Add a new category 'exclude' and populate it
using the unknown-flag alias keys.
Standard Unicode (emoji v5) does not define skin tones for wrestlers,
but android does. Alias the skin tone variants of the non-gender-
specific emoji to the corresponding male emoji, as we do for the
non-skin-tone version.
When images are not processed due to not being able to meet the
minimum quality setting, error 99 is returned, so catch this too
so we still copy the file.
Might still want to tweak these settings.
When imagemagick 6.7.7-10 is processing the '-extent' operator and
discovers an image is grayscale, it turns the 32-bit truecolor sRGB
image into a grayscale image, but does so incorrectly-- the gray
levels and alpha are wrong. Get around this by using composition
to copy the source image over a slightly larger transparent image.
Thumbnail generation for Unicode requires some changes:
- 72x72 images (exact, not just fit within that frame)
- custom prefix ending in underscore
- images for unsupported flags
The default build doesn't support some flags by default, since they
are not wanted by Android. For the thumbnail list these images need
to be provided, so we alias them to the unknown flag images as that's
what would show for them. It's probably a good idea to list these
explicitly anyway, other tools could use this information.
To generate the Unicode comparison page of various vendor emoji,
Unicode prefers to use 72x72 images for all the supported emoji
without aliasing. This tool will generate these from the
directory of cleaned images produced by the emoji build, using
the aliases defined in emoji_aliases.txt.
Previously we haven't put the binary into the repo itself, since it's
built using the tooling. But people who fetch fonts from the get/noto
website want to know more about the version history of the fonts they
find there. Checking the binary into the noto-emoji site will facilitate
this.
This was built locally from the public images using the standard makefile
and zopflipng.
dougfelt