49 lines
1.9 KiB
Bash
Executable File
49 lines
1.9 KiB
Bash
Executable File
#!/bin/bash
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set -e
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file="$1"
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width="$2"
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mini_png="$(mktemp --suffix=".png")"
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colors_gif="$(mktemp --suffix=".gif")"
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indexed_gif="$(mktemp --suffix=".gif")"
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indexed_pgm="$(mktemp --suffix=".pgm")"
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odd_lines="$(mktemp --suffix=".odd")"
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even_lines="$(mktemp --suffix=".even")"
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odd_lines_px="$(mktemp --suffix=".odd.px")"
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even_lines_px="$(mktemp --suffix=".even.px")"
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colors=(78,78,78 255,108,96 0,170,0 288,288,182 150,203,254 255,115,253 85,255,255 238,238,238 124,124,124 255,155,147 177,253,121 255,255,145 181,220,254 255,156,254 85,255,255 255,255,255)
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args=()
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for i in `seq 0 15`; do
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if test $i -ge 8; then
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color=$((i+8))
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else
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color=$((i))
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fi
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args+=(-fuzz 0% -fill "gray(${color})" -opaque "rgb(${colors[$i]})")
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done
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convert "$file" -resize "${width}x" "${mini_png}" \
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&& convert +dither -remap "$(dirname "$0")/travis-palette.gif" "${mini_png}" "${colors_gif}" \
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&& convert "${colors_gif}" "${args[@]}" "${indexed_gif}" \
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&& convert "${indexed_gif}" "${indexed_pgm}" \
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&& tail -n +4 "${indexed_pgm}" \
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| hexdump -Cv \
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| sed -n -r -e 's/^[0-9a-f]* (([0-9a-f]{2} ?){1,16}).*$/\1/p' \
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| tr '\n' ' ' \
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| sed -r -e 's/ +/ /g' \
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| fold -w $((width*3)) \
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| awk "{ if (NR % 2 == 0) print > \"$even_lines\"; else print > \"$odd_lines\"; }"
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cat "$odd_lines" | sed -e 's/ $//' | tr ' ' '\n' > "$odd_lines_px"
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cat "$even_lines" | sed -e 's/ $//' | tr ' ' '\n' > "$even_lines_px"
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paste "$odd_lines_px" "$even_lines_px" \
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| tr '\t\n' ' ' \
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| fold -w $((width*6)) \
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| sed -r -e 's/([01])([0-7]) ([01])([0-7]) /[\1;3\2;4\4m▀/g' -e 's/$/[m/' \
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| if test "$CI" = "true" -a "$TRAVIS" = "true"; then while IFS=$'\n' read -n 11 ab; do if test "${#ab}" -ne 11; then echo "$ab"; else echo -n "$ab"; fi; sleep 0.01; done; else cat; fi
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echo
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rm "${mini_png}" "${colors_gif}" "${indexed_gif}" "${indexed_pgm}" "${odd_lines}" "${even_lines}" "${odd_lines_px}" "${even_lines_px}"
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