Test compression algorithms

test_compression.sh

#!/usr/bin/env bash
# FIXME: Untested!

function compress() {
  input="$1"
  output="$(basename "$input")"
  command -v lz4 && lz4 -1 "$input" "$output.1.lz4"
  command -v lz4 && lz4 -9 "$input" "$output.9.lz4"
  command -v gzip && gzip -1 -k -c "$input" > "$output.1.gzip"
  command -v gzip && gzip -9 -k -c "$input" > "$output.9.gzip"
  command -v lzma && lzma -1 -k -c "$input" > "$output.1.xz"
  command -v lzma && lzma -9 -k -c "$input" > "$output.9.xz"
  command -v bzip2 && bzip2 -1 -k -c "$input" > "$output.1.bz2"
  command -v bzip2 && bzip2 -9 -k -c "$input" > "$output.9.bz2"
  command -v zstd && zstd -1 -k -c "$input" > "$output.1.zstd"
  command -v zstd && zstd -9 -k -c "$input" > "$output.9.zstd"
  command -v zstd && zstd -19 -k -c "$input" > "$output.19.zstd"
  command -v zpaq && zpaq -1 -k -c "$input" > "$output.1.zpaq"
  command -v zpaq && zpaq -9 -k -c "$input" > "$output.9.zpaq"
}

function clean() {
    rm ./*.lz4 ./*.gzip ./*.xz ./*.bz2 ./*.zstd ./*.zpaq
}

for file in "$@"; do
    compress "$file"
done

command -v lz4 || echo "lz4 not found"
command -v gzip || echo "gzip not found"
command -v lzma || echo "lzma not found"
command -v bzip2 || echo "bzip2 not found"
command -v zstd || echo "zstd not found"
command -v zpaq || echo "zpaq not found"