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j/cli/ls.go

48 lines
972 B
Go

package cli
import (
"fmt"
"io/ioutil"
"strings"
"github.com/Masterminds/semver"
"github.com/k0kubun/go-ansi"
"github.com/urfave/cli/v2"
)
func list(*cli.Context) (err error) {
infos, err := ioutil.ReadDir(versionsDir)
if err != nil || len(infos) <= 0 {
fmt.Printf("No version installed yet\n\n")
return nil
}
items := make([]*semver.Version, 0, len(infos))
for i := range infos {
if !infos[i].IsDir() {
continue
}
vname := infos[i].Name()
var idx int
if strings.Contains(vname, "alpha") {
idx = strings.Index(vname, "alpha")
} else if strings.Contains(vname, "beta") {
idx = strings.Index(vname, "beta")
} else if strings.Contains(vname, "rc") {
idx = strings.Index(vname, "rc")
}
if idx > 0 {
vname = vname[:idx] + "-" + vname[idx:]
}
v, err := semver.NewVersion(vname)
if err != nil || v == nil {
continue
}
items = append(items, v)
}
render(inuse(goroot), items, ansi.NewAnsiStdout())
return nil
}