mirror of
https://github.com/LadybirdBrowser/ladybird
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3f73528cad
Continuing some organization of the Meta directory. lint-ci.sh and lint-commits.sh are left alone as "top-level" linters.
67 lines
2.3 KiB
Bash
Executable File
67 lines
2.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -eo pipefail
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# How many bytes optipng has to be able to strip out of the file for the optimization to be worth it. The default is 1 KiB.
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: "${MINIMUM_OPTIMIZATION_BYTES:=1024}"
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script_path=$(cd -P -- "$(dirname -- "$0")" && pwd -P)
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cd "${script_path}/../.." || exit 1
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if ! command -v optipng >/dev/null ; then
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if [[ "$GITHUB_ACTIONS" == "true" ]]; then
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echo 'optipng is not installed, failing check because running in CI.'
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exit 1
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fi
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echo 'optipng is not installed, skipping png size check.'
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echo 'Please install optipng for your system to run this check.'
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exit 0
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fi
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if [ "$#" -eq "0" ]; then
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input_files=()
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while IFS= read -r file; do
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input_files+=("${file}")
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done < <(git ls-files -- '*.png')
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else
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input_files=("$@")
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fi
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files=()
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for file in "${input_files[@]}"; do
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if [[ "${file}" == *"/wpt-import/"* ]]; then
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continue
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fi
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if [[ "${file}" == *".png" ]]; then
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files+=("${file}")
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fi
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done
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if (( ${#files[@]} )); then
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tmpdir=$(mktemp -d)
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# Each parallel invocation writes to its own temp file (using the sh process PID) to avoid clobbering. The per-file check
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# is done inside sh -c so that filenames and byte counts stay paired despite interleaved parallel output.
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# shellcheck disable=SC2016
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results=$(printf '%s\0' "${files[@]}" \
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| xargs -0 -n1 -P0 sh -c '
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output=$(optipng -strip all -out "$0/optipng-$$.png" -clobber "$2" 2>&1) || true
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decrease=$(printf "%s\n" "$output" | sed -nE "s/Output IDAT size = [0-9]+ byte(s?) \(([0-9]+) byte(s?) decrease\)/\2/p")
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decrease="${decrease:-0}"
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if [ "$decrease" -ge "$1" ]; then
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printf "%d %s\n" "$decrease" "$2"
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fi
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' "$tmpdir" "$MINIMUM_OPTIMIZATION_BYTES")
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rm -rf "$tmpdir"
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if [ -n "$results" ]; then
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optimizations=$(printf '%s\n' "$results" | awk '{ S+=$1 } END { print S }')
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echo "There are non-optimized PNG images. It is possible to reduce file sizes by at least $optimizations byte(s)."
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printf '%s\n' "$results" | awk '{ print " " $2 }'
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# shellcheck disable=SC2016 # we're not trying to expand expressions here
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echo 'Please run optipng with `-strip all` on modified PNG images and try again.'
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exit 1
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fi
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else
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echo 'No PNG images to check.'
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fi
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