SeqCombGo/flag.go

65 lines
1.8 KiB
Go
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package main
import (
"flag"
"fmt"
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"os"
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)
var (
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version bool
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file_output string
file_input []string
)
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// ascii img is build from http://www.network-science.de/ascii/
// is there any better way to print logo? please contact us
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func print_logo() {
fmt.Print("__ ___ _ ___ \n" +
"/ _\\ ___ __ _ / __\\___ _ __ ___ | |__ / _ \\___ \n" +
"\\ \\ / _ \\/ _` |/ / / _ \\| '_ ` _ \\| '_ \\ / /_\\/ _ \\ \n" +
"_\\ \\ __/ (_| / /__| (_) | | | | | | |_) / /_\\ (_) |\n" +
"\\__/\\___|\\__, \\____/\\___/|_| |_| |_|_.__/\\____/\\___/ \n" +
" |_| \n")
fmt.Println(" Sequence Combination tool written in Golang")
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fmt.Println("Version 0.0.1 Authors: An, G; Zhang, G License: GPL")
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}
// __ ___ _ ___
// / _\ ___ __ _ / __\___ _ __ ___ | |__ / _ \___
// \ \ / _ \/ _` |/ / / _ \| '_ ` _ \| '_ \ / /_\/ _ \
// _\ \ __/ (_| / /__| (_) | | | | | | |_) / /_\\ (_) |
// \__/\___|\__, \____/\___/|_| |_| |_|_.__/\____/\___/
// |_|
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// is for cmd
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func dna_flag() {
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flag.StringVar(&file_output, "o", "a.nex", "output file")
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flag.BoolVar(&version, "v", false, "version")
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flag.Usage = usage
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flag.Parse()
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if version {
fmt.Println("SeqCombGo version: SeqCombGo/0.0.1")
os.Exit(0)
}
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file_input = flag.Args() // []string{"foo", "bar"}
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// 这里应该加个判断,如果输入不符合,后面的正则会报错
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if len(file_input) == 0 {
fmt.Println("please use it in right way! see -h for help")
os.Exit(0)
}
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print_logo()
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fmt.Println("\n[import files:]", file_input)
fmt.Println("[export file :]", file_output)
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}
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func usage() {
print_logo()
fmt.Fprintf(os.Stderr, `
Example:
SeqCombGo -o export.nex import1.fas import2.fas ...
Options:
`)
flag.PrintDefaults()
}