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Fix a broken default, and add kube segment
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "io/ioutil" | ||
| "os" | ||
| "path" | ||
| "path/filepath" | ||
| "runtime" | ||
| "strings" | ||
|
|
||
| "fmt" | ||
| "gopkg.in/yaml.v2" | ||
| ) | ||
|
|
||
| type KubeContext struct { | ||
| Context struct { | ||
| Cluster string | ||
| Namespace string | ||
| User string | ||
| } | ||
| Name string | ||
| } | ||
|
|
||
| type KubeConfig struct { | ||
| Contexts []KubeContext `yaml:"contexts"` | ||
| CurrentContext string `yaml:"current-context"` | ||
| } | ||
|
|
||
| func homePath() string { | ||
| env := "HOME" | ||
| if runtime.GOOS == "windows" { | ||
| env = "USERPROFILE" | ||
| } | ||
| return os.Getenv(env) | ||
| } | ||
|
|
||
| func readKubeConfig(config *KubeConfig, path string) (err error) { | ||
| absolutePath, err := filepath.Abs(path) | ||
| if err != nil { | ||
| return | ||
| } | ||
| fileContent, err := ioutil.ReadFile(absolutePath) | ||
| if err != nil { | ||
| return | ||
| } | ||
| err = yaml.Unmarshal(fileContent, config) | ||
| if err != nil { | ||
| return | ||
| } | ||
|
|
||
| return | ||
| } | ||
|
|
||
| func segmentKube(p *powerline) { | ||
| paths := append(strings.Split(os.Getenv("KUBECONFIG"), ":"), path.Join(homePath(), ".kube", "config")) | ||
| config := &KubeConfig{} | ||
| for _, configPath := range paths { | ||
| if readKubeConfig(config, configPath) == nil { | ||
| break | ||
| } | ||
| } | ||
|
|
||
| cluster := "" | ||
| namespace := "" | ||
| for _, context := range config.Contexts { | ||
| if context.Name == config.CurrentContext { | ||
| cluster = context.Context.Cluster | ||
| namespace = context.Context.Namespace | ||
| break | ||
| } | ||
| } | ||
|
|
||
| // When you use gke your clusters may look something like gke_projectname_availability-zone_cluster-01 | ||
| // instead I want it to read as `cluster-01` | ||
| // So we remove the first 3 segments of this string, if the flag is set, and there are enough segments | ||
| if strings.HasPrefix(cluster, "gke") && *p.args.ShortenGKENames { | ||
| segments := strings.Split(cluster, "_") | ||
| if len(segments) > 3 { | ||
| cluster = strings.Join(segments[3:], "_") | ||
| } | ||
| } | ||
|
|
||
| // Only draw the icon once | ||
| kubeIconHasBeenDrawnYet := false | ||
| if cluster != "" { | ||
| kubeIconHasBeenDrawnYet = true | ||
| p.appendSegment("kube-cluster", segment{ | ||
| content: fmt.Sprintf("⎈ %s", cluster), | ||
| foreground: p.theme.KubeClusterFg, | ||
| background: p.theme.KubeClusterBg, | ||
| }) | ||
| } | ||
|
|
||
| if namespace != "" { | ||
| content := namespace | ||
| if !kubeIconHasBeenDrawnYet { | ||
| content = fmt.Sprintf("⎈ %s", content) | ||
| } | ||
| p.appendSegment("kube-namespace", segment{ | ||
| content: content, | ||
| foreground: p.theme.KubeNamespaceFg, | ||
| background: p.theme.KubeNamespaceBg, | ||
| }) | ||
| } | ||
| } |
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