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shoorick/Makefile

Created December 19, 2018 20:46
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Makefile for trimming PNG files and making them 2-bit black and white
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Makefile
SRC=.
DST=2b
FILES=*.png
trim $(DST)/$(FILES): $(SRC)/$(FILES)
for file in $(SRC)/$(FILES); do \
[ ! -f $(DST)/$$file -o $(SRC)/$$file -nt $(DST)/$$file ] \
&& echo $$file \
&& convert $(SRC)/$$file -dither none -colors 2 -trim +repage $(DST)/$$file; \
done
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