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package prep
// initializes logging and command line options
import (
"fmt"
"os"
"path/filepath"
"strings"
"go.wit.com/dev/alexflint/arg"
"go.wit.com/lib/gui/shell"
"go.wit.com/log"
)
var argBash ArgsBash
/*
This struct can be used with the go-arg package. These
are the generic default command line arguments for the 'GUI' package
*/
type ArgsBash struct {
Bash bool `arg:"--bash" help:"generate bash completion"`
}
var myBash *BashAuto
type BashAuto struct {
id int // should be unique
hidden bool // don't update the toolkits when it's hidden
Auto func([]string)
appName string // a good way to track the name of the binary ?
}
/*
func dumpjunk() {
fmt.Fprintln(os.Stderr, "")
fmt.Fprintln(os.Stderr, os.Args)
os.Exit(0)
}
*/
// argname is the name of the executable
func Bash(argname string, autocomplete func([]string)) *BashAuto {
if len(os.Args) > 1 && os.Args[1] == "--bash" {
doBash(argname)
os.Exit(0)
}
if len(os.Args) > 1 && os.Args[1] == "--auto-complete" {
autocomplete(os.Args[2:])
os.Exit(0)
}
arg.Register(&argBash)
myBash = new(BashAuto)
myBash.appName = argname
// parse go.Arg here?
return myBash
}
// print out auto complete debugging info
func (pb *Auto) AutoDebug() {
dur := pb.Duration.AsDuration()
pb.Debugf("AUTOCOMPLETE: arg0='%s' arg1='%s' partial='%s' cmd='%s' age=%s argv=%v\n", pb.Arg0, pb.Arg1, pb.Partial, pb.Cmd, shell.FormatDuration(dur), pb.Argv)
// fmt.Println("--all --gui --verbose --force")
}
// returns the last command (is blank if the current arg is not blank)
func GetLast(cur string, argv []string) string {
if cur != "''" {
return ""
}
for _, s := range argv {
if strings.HasPrefix(s, "-") {
continue
}
return s
}
return ""
}
// returns the name of the executable registered for shell autocomplete
func AppName() string {
return myBash.appName
}
// makes a bash autocomplete file for your command
func doBash(argname string) {
fmt.Println(makeBashCompletionText(argname))
homeDir, err := os.UserHomeDir()
if err != nil {
log.Printf("%v\n", err)
os.Exit(0)
}
filename := filepath.Join(homeDir, ".local/share/bash-completion/completions", argname)
if shell.Exists(filename) {
log.Println(filename, "file already exists")
os.Exit(0)
}
basedir, _ := filepath.Split(filename)
if !shell.IsDir(basedir) {
os.MkdirAll(basedir, os.ModePerm)
}
if f, err := os.OpenFile(filename, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644); err == nil {
f.Write([]byte(makeBashCompletionText(argname)))
f.Close()
log.Println("bash file created:", filename)
log.Println("restart bash")
} else {
log.Info(filename, err)
}
os.Exit(0)
}
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