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ls.go
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ls.go
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// Author: Jon Maken, All Rights Reserved
// License: 3-clause BSD
package command
import (
"fmt"
"os"
"bitbucket.org/jonforums/uru/internal/env"
)
var listCmd *Command = &Command{
Name: "ls",
Aliases: []string{"ls", "list"},
Usage: "ls [--verbose]",
Eg: "ls",
Short: "list all registered ruby installations",
Run: list,
}
func init() {
CmdRouter.Handle(listCmd.Aliases, listCmd)
}
// List all rubies registered with uru, identifying the currently active ruby
func list(ctx *env.Context) {
if len(ctx.Registry.Rubies) == 0 {
fmt.Println("---> No rubies registered with uru")
return
}
verbose := false
for _, v := range ctx.CmdArgs() {
if v == `--verbose` {
verbose = true
break
}
}
tagHash, _, err := env.CurrentRubyInfo(ctx)
if err != nil {
fmt.Printf("---> unable to list rubies; try again (%s)\n", err)
os.Exit(1)
}
sortedTagHashes, err := env.SortTagsByTagLabel(&ctx.Registry.Rubies)
if err != nil {
fmt.Printf("---> unable to list sorted rubies; try again (%s)\n", err)
os.Exit(1)
}
var me, desc string
indent := fmt.Sprintf("%17.17s", ``)
for _, t := range sortedTagHashes {
ri := ctx.Registry.Rubies[t]
if t == tagHash {
me = `=>`
} else {
me = " "
}
desc = ri.Description
if len(desc) > 64 {
desc = fmt.Sprintf("%.64s...", desc)
}
fmt.Printf(" %s %-12.12s: %s\n", me, ri.TagLabel, desc)
if verbose {
fmt.Printf("%s ID: %s\n%s Home: %s\n%s GemHome: %s\n\n",
indent, ri.ID, indent, ri.Home, indent, ri.GemHome)
}
}
}