wdl_file_to_md5.wdl

version 1.0

workflow GenerateMD5 {
    input {
        File input_file
    }

    call ComputeMD5 {
        input: file_to_hash = input_file
    }

    output {
        String md5sum = ComputeMD5.md5_hash
    }
}

task ComputeMD5 {
    input {
        File file_to_hash
    }

    command {
        md5sum ~{file_to_hash} | cut -d ' ' -f 1
    }

    output {
        String md5_hash = read_string(stdout())
    }

    runtime {
        docker: "ubuntu:latest"
    }
}