upd help message

seqhasher.go

@@ -162,24 +162,27 @@ func printUsage(w io.Writer) {
 		fmt.Fprintf(w, "  %s\n", color.WhiteString("seqhasher [options] <input_file> [output_file]"))
 		fmt.Fprintln(w, color.HiCyanString("\nOverview:"))
 		fmt.Fprintln(w, color.WhiteString("  SeqHasher takes DNA sequences from a FASTA file, computes a hash digest for each sequence,"))
-		fmt.Fprintln(w, color.WhiteString("  and generates an output file with modified sequences."))
+		fmt.Fprintln(w, color.WhiteString("  and generates an output file with modified headers."))
 		fmt.Fprintln(w, color.WhiteString("  For input/output via stdin/stdout, use '-' instead of the file name."))
 		fmt.Fprintln(w, color.HiCyanString("\nOptions:"))
-		fmt.Fprintf(w, "  %s, %s %s\n", color.HiMagentaString("-o"), color.HiMagentaString("--headersonly"), color.WhiteString("   Only output sequence headers, excluding the sequences themselves"))
-		fmt.Fprintf(w, "  %s, %s %s\n", color.HiMagentaString("-H"), color.HiMagentaString("--hash <type1,type2,...>"), color.WhiteString("   Hash algorithm(s): sha1 (default), sha3, md5, xxhash, cityhash, murmur3, nthash, blake3"))
-		fmt.Fprintf(w, "  %s, %s %s\n", color.HiMagentaString("-n"), color.HiMagentaString("--nofilename"), color.WhiteString("    Omit the file name from the sequence header"))
-		fmt.Fprintf(w, "  %s, %s %s\n", color.HiMagentaString("-c"), color.HiMagentaString("--casesensitive"), color.WhiteString(" Take into account sequence case. By default, sequences are converted to uppercase"))
-		fmt.Fprintf(w, "  %s, %s %s\n", color.HiMagentaString("-f"), color.HiMagentaString("--name <text>"), color.WhiteString("   Replace the input file's name in the header with <text>"))
-		fmt.Fprintf(w, "  %s, %s %s\n", color.HiMagentaString("-v"), color.HiMagentaString("--version"), color.WhiteString("       Print the version of the program and exit"))
-		fmt.Fprintf(w, "  %s, %s %s\n", color.HiMagentaString("-h"), color.HiMagentaString("--help"), color.WhiteString("          Show this help message and exit"))
+		fmt.Fprintf(w, "  %s, %s %s\n", color.HiMagentaString("-o"), color.HiMagentaString("--headersonly"), color.WhiteString("  Output only sequence headers, excluding the sequences themselves"))
+		fmt.Fprintf(w, "  %s, %s %s\n", color.HiMagentaString("-H"), color.HiMagentaString("--hash <type1,type2,...>"), color.WhiteString("Hash algorithm(s): sha1 (default), sha3, md5, xxhash, cityhash, murmur3, nthash, blake3"))
+		fmt.Fprintf(w, "  %s, %s %s\n", color.HiMagentaString("-c"), color.HiMagentaString("--casesensitive"), color.WhiteString("Take into account sequence case. By default, sequences are converted to uppercase"))
+		fmt.Fprintf(w, "  %s, %s %s\n", color.HiMagentaString("-n"), color.HiMagentaString("--nofilename"), color.WhiteString("   Omit the file name from the sequence header"))
+		fmt.Fprintf(w, "  %s, %s %s\n", color.HiMagentaString("-f"), color.HiMagentaString("--name <text>"), color.WhiteString("  Replace the input file's name in the header with <text>"))
+		fmt.Fprintf(w, "  %s, %s %s\n", color.HiMagentaString("-v"), color.HiMagentaString("--version"), color.WhiteString("      Print the version of the program and exit"))
+		fmt.Fprintf(w, "  %s, %s %s\n", color.HiMagentaString("-h"), color.HiMagentaString("--help"), color.WhiteString("         Show this help message and exit"))
 		fmt.Fprintln(w, color.HiCyanString("\nArguments:"))
-		fmt.Fprintf(w, "  %s %s\n", color.HiMagentaString("<input_file>"), color.WhiteString("    The path to the input FASTA file (could be compressed with gzip, zstd, xz, or bzip2) or '-' for standard input (stdin)"))
-		fmt.Fprintf(w, "  %s %s\n", color.HiMagentaString("[output_file]"), color.WhiteString("   The path to the output file or '-' for standard output (stdout)"))
-		fmt.Fprintln(w, color.WhiteString("                   If omitted, defaults to stdout."))
+		fmt.Fprintf(w, "  %s %s\n", color.HiMagentaString("<input_file>"), color.WhiteString("    Path to the input FASTA file (supports gzip, zstd, xz, or bzip2 compression)"))
+		fmt.Fprintf(w, "  %s\n", color.WhiteString("                 or '-' for standard input (stdin)"))
+		fmt.Fprintf(w, "  %s %s\n", color.HiMagentaString("[output_file]"), color.WhiteString("   Path to the output file or '-' for standard output (stdout)"))
+		fmt.Fprintln(w, color.WhiteString("                   If omitted, output is sent to stdout."))
 		fmt.Fprintln(w, color.HiCyanString("\nExamples:"))
 		fmt.Fprintln(w, color.WhiteString("  seqhasher input.fasta.gz output.fasta"))
 		fmt.Fprintln(w, color.WhiteString("  cat input.fasta | seqhasher --name 'Sample' --hash xxhash - - > output.fasta"))
 		fmt.Fprintln(w, color.WhiteString("  seqhasher --headersonly --nofilename --hash sha1,nthash input.fa.gz - > headers.txt"))
+		fmt.Fprintln(w, color.WhiteString("\nFor more information, visit the GitHub repository:"))
+		fmt.Fprintln(w, color.WhiteString("https://github.com/vmikk/seqhasher"))
 	} else {
 		fmt.Fprintf(w, "SeqHasher v%s\n", version)
 		fmt.Fprintf(w, "Usage: %s [options] <input_file> [output_file]\n", os.Args[0])