// lookup for an specific installed go version
func LookupInstalledVersion(version string) bool {
installed, err := cache.GetInstalled(
cache.Tags(), cache.AvailableSources(), cache.AvailableBinaries())
if err != nil {
log.Fatal(err)
}
for _, v := range installed {
if v == version {
return true
}
}
return false
}
// implements the Runner interface returning back a list of installed
// go versions, a list of not installed versions or all versions depending
// on the list options
func (l *List) Run() (string, error) {
tags := cache.Tags()
sources := cache.AvailableSources()
binaries := cache.AvailableBinaries()
versions := map[string][]string{
"installed": []string{},
"available": []string{},
}
installed, err := cache.GetInstalled(tags, sources, binaries)
if err != nil {
fmt.Println("while running List command:", err)
return "error while running the command", err
}
versions["installed"] = append(versions["installed"], installed...)
versions["available"] = append(
versions["available"],
cache.GetNonInstalled(installed, tags, sources, binaries)...,
)
return l.display(versions)
}