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45 lines
1.5 KiB
45 lines
1.5 KiB
#!/bin/sh
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# generate forum signatures for black and white backgrounds
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# files get optimized with optipng, advpng and pngcrush
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# you may want to install them; if you don't have them installed
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# the output files get not optimized
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# for random output I utilize a perl script `randomquote.pl` which
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# is not my own and the author does not want it to be re-distributed
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# so you might want to find something that suits your need
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#
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# Author: Dominic Reich <quick.hat4396@qtztsjosmprqmgtunjyf.com>
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# Last modified: 2024-01-15 02:36
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#
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# files create in actual dir _dark.png and _light.png are added to filename
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file_prefix=forumsig
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quote=$(~/bin/randomquote.pl | fold -sw 76)
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# dark
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convert -background black -fill \#ddd -font /usr/local/share/fonts/spleen/spleen-32x64.otf \
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-antialias -pointsize 20 label:"$quote" ${file_prefix}_dark.png
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# light
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convert -background white -fill \#222 -font /usr/local/share/fonts/spleen/spleen-32x64.otf \
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-antialias -pointsize 20 label:"$quote" ${file_prefix}_light.png
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missing=""
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command -v optipng > /dev/null 2>&1 || { missing="$missing optiping"; }
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command -v advpng > /dev/null 2>&1 || { missing="$missing advpng"; }
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command -v pngcrush > /dev/null 2>&1 || { missing="$missing pngcrush"; }
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if [ -n "$missing" ]
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then
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echo >&2 "could not find:$missing"
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exit 1
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fi
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for file in ${file_prefix}_{dark,light}.png
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do
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optipng -nb -nc $file > /dev/null 2>&1
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advpng -z4 $file > /dev/null 2>&1
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pngcrush -rem gAMA -rem alla -rem cHRM -rem iCCP -rem sRGB -rem time -ow $file > /dev/null 2>&1
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done
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