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67 lines
2.2 KiB
67 lines
2.2 KiB
package main
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import (
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"fmt"
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"io/ioutil"
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"log"
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"os"
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"path"
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"github.com/mitchellh/go-homedir"
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)
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// createDirIfNotExists checks for the existence of a directory and creates it along with all required parents if not.
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// It returns an error if the directory (or parents) couldn't be created and nil if it worked fine or if the path already exists.
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func createDirIfNotExists(path string) error {
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if _, err := os.Stat(path); os.IsNotExist(err) {
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return os.MkdirAll(path, os.ModePerm)
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}
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return nil
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}
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// createClusterDir creates a directory with the cluster name under $HOME/.config/k3d/<cluster_name>.
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// The cluster directory will be used e.g. to store the kubeconfig file.
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func createClusterDir(name string) {
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clusterPath, _ := getClusterDir(name)
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if err := createDirIfNotExists(clusterPath); err != nil {
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log.Fatalf("ERROR: couldn't create cluster directory [%s] -> %+v", clusterPath, err)
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}
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}
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// deleteClusterDir contrary to createClusterDir, this deletes the cluster directory under $HOME/.config/k3d/<cluster_name>
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func deleteClusterDir(name string) {
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clusterPath, _ := getClusterDir(name)
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if err := os.RemoveAll(clusterPath); err != nil {
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log.Printf("WARNING: couldn't delete cluster directory [%s]. You might want to delete it manually.", clusterPath)
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}
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}
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// getClusterDir returns the path to the cluster directory which is $HOME/.config/k3d/<cluster_name>
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func getClusterDir(name string) (string, error) {
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homeDir, err := homedir.Dir()
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if err != nil {
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log.Printf("ERROR: Couldn't get user's home directory")
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return "", err
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}
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return path.Join(homeDir, ".config", "k3d", name), nil
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}
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// listClusterDirs prints the names of the directories in the config folder (which should be the existing clusters)
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func listClusterDirs() {
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homeDir, err := homedir.Dir()
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if err != nil {
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log.Fatalf("ERROR: Couldn't get user's home directory")
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}
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configDir := path.Join(homeDir, ".config", "k3d")
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files, err := ioutil.ReadDir(configDir)
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if err != nil {
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log.Fatalf("ERROR: Couldn't list files in [%s]", configDir)
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}
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fmt.Println("NAME")
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// TODO: user docker client to get state of cluster
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for _, file := range files {
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if file.IsDir() {
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fmt.Println(file.Name())
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}
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}
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}
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