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|
#!/bin/sh -e
HERE=$(dirname $(readlink -f ${0}));
cd ${HERE};
rm -f gen_*;
#---------------------------------------------------------------
# Transparent monochrome (B on W, W on B) SVGs from master.
##
# Target: color
#
# Optionally apply color transformations here.
#
cp polyguin.svg gen_polyguin_color.svg
##
# Target: black
#
# Convert color SVG to black SVG and maintain transparency.
#
cp polyguin.svg gen_polyguin_black.svg
grep fill: polyguin.svg \
| grep -v fill:none \
| grep -E -o '\#[a-f0-9]*\w' \
| sort \
| uniq \
| cut -d\# -f2 \
| while read k; do
sed -i gen_polyguin_black.svg \
-e 's@'"$k"'@__BLACK_'"$k"'__@g' \
;
done \
;
grep fill: polyguin.svg \
| grep -v fill:none \
| grep -E -o '\#[a-f0-9]*\w' \
| sort \
| uniq \
| cut -d\# -f2 \
| sed 's/.\{2\}/& /g' \
| awk '{ print "0x"$1,"0x"$2,"0x"$3, ($1 $2 $3) }' \
| awk --non-decimal-data '{ print $4, (1 - (($1 + $2 + $3) / (3 * 256))) }' \
| while read a b; do
sed -i gen_polyguin_black.svg \
-e '/'"$a"'/ s@-opacity:1@-opacity:'"$b"'@g' \
-e '/'"$a"'/ s@__BLACK_[a-f0-9]*__@000000@g' \
;
done \
;
##
# Target: white
#
# Convert color SVG to white SVG and maintain transparency.
#
cp polyguin.svg gen_polyguin_white.svg
grep fill: polyguin.svg \
| grep -v fill:none \
| grep -E -o '\#[a-f0-9]*\w' \
| sort \
| uniq \
| cut -d\# -f2 \
| while read k; do
sed -i gen_polyguin_white.svg \
-e 's@'"$k"'@__WHITE_'"$k"'__@g' \
;
done \
;
grep fill: polyguin.svg \
| grep -v fill:none \
| grep -E -o '\#[a-f0-9]*\w' \
| sort \
| uniq \
| cut -d\# -f2 \
| sed 's/.\{2\}/& /g' \
| awk '{ print "0x"$1,"0x"$2,"0x"$3, ($1 $2 $3) }' \
| awk --non-decimal-data '{ print $4, (($1 + $2 + $3) / (3 * 256)) }' \
| while read a b; do
sed -i gen_polyguin_white.svg \
-e '/'"$a"'/ s@-opacity:1@-opacity:'"$b"'@g' \
-e '/'"$a"'/ s@__WHITE_[a-f0-9]*__@ffffff@g' \
;
done \
;
#===============================================================
docker run -v$(pwd):/x -w/x --rm -i alpine:3.17 <<'EOF'
apk add graphicsmagick imagemagick;
#===============================================================
#---------------------------------------------------------------
# SVG master --> scaled PNGs for composition onto logo template.
##
# SVG --> PNG for master logo icon.
#
# x28 is GitLab
# x54 is Website
# x200 is SPI project page
# x900 is WordPress theme
#
# This runs inside Docker because of ImageMagick bugs and GM is
# the only free software I can find that doesn't screw this up.
#
for c in color black white; do
for r in x28 x54 x200 x900; do
gm convert -trim -density 600 -resize ${r} -background none gen_polyguin_${c}.svg gen_polyguin_${c}_${r}.png;
magick convert -auto-level -brightness-contrast -5x+25 gen_polyguin_${c}_${r}.png gen_polyguin_${c}_${r}.png;
chown 1000:1000 gen_polyguin_${c}_${r}.png;
done # r
done # c
#---------------------------------------------------------------
# PSD master --> scaled PNGs for composition onto logo template.
##
# PSD --> PNG for master logo icon.
#
# x28 is GitLab
# x54 is Website
# x200 is SPI project page
# x900 is WordPress theme
#
# GM does not support PSD anymore!
#
find . -type f -name "*.psd" | cut -d'/' -f2 | while read k; do
for r in x28 x54 x200 x900; do
magick convert -resize ${r} "${k}[0]" "gen_${k%*.psd}_${r}.png";
chown 1000:1000 "gen_${k%*.psd}_${r}.png";
done
done
#---------------------------------------------------------------
# SVG + PSD template composition.
##
# Contrast suffers a bit but these are great on image backgrounds.
#
for c in color black white; do
for r in x28 x54 x200 x900; do
# transparent black polyguin
gm composite gen_polyguin_${c}_${r}.png gen_polylogo_template_black_${r}.png gen_polylogo_black_${c}_${r}.png;
chown 1000:1000 gen_polylogo_black_${c}_${r}.png;
# transparent white polyguin
gm composite gen_polyguin_${c}_${r}.png gen_polylogo_template_white_${r}.png gen_polylogo_white_${c}_${r}.png;
chown 1000:1000 gen_polylogo_white_${c}_${r}.png;
done # r
done # c
##
# These have better contrast and are suited for solid backgrounds.
#
# FIXME: improve contrast.
#
for r in x28 x54 x200 x900; do
# solid black color --> grayscale polyguin
magick convert -colorspace Gray gen_polylogo_black_color_${r}.png gen_polylogo_black_mono_${r}.png;
chown 1000:1000 gen_polylogo_black_mono_${r}.png;
# solid white color --> grayscale polyguin
magick convert -colorspace Gray gen_polylogo_white_color_${r}.png gen_polylogo_white_mono_${r}.png;
chown 1000:1000 gen_polylogo_black_mono_${r}.png;
done # r
#---------------------------------------------------------------
# Favicon generation.
##
# 32x32 is GitLab
# Website uses native SVG
#
magick convert -background none -gravity center -resize 32x32 -extent 32x32 polyguin_color.svg icons/gen_polyguin_color_favicon.ico;
chown 1000:1000 icons/gen_polyguin_color_favicon.ico;
#---------------------------------------------------------------
# Other custom outputs.
##
# GitLab group/project avatar is 96x96 square. MUST be square.
#
magick convert -background none -gravity center -resize 96x96 -extent 96x96 gen_polyguin_color.svg gen_polyguin_color_gitlab.png;
chown 1000:1000 gen_polyguin_color_gitlab.png;
##
# Twitter avatar is 400x400 square. MUST be square.
#
magick convert -background none -gravity center -resize 400x400 -extent 400x400 gen_polyguin_color.svg gen_polyguin_color_twitter.png;
chown 1000:1000 gen_polyguin_color_twitter.png;
##
# WordPress theme screenshot is 1200x900. MUST be this.
#
magick convert -background none -gravity center -resize 1200x900 -extent 1200x900 gen_polylogo_black_color_x900.png gen_polyguin_color_wordpress.png;
chown 1000:1000 gen_polyguin_color_wordpress.png;
##
# GitHub group/project avatar is 500x500 square. MUST be square.
#
magick convert -background none -gravity center -resize 500x500 -extent 500x500 gen_polyguin_color.svg gen_polyguin_color_github.png;
chown 1000:1000 gen_polyguin_color_github.png;
#===============================================================
EOF
#===============================================================
|
