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helm/pkg/repo/local.go

78 lines
1.9 KiB

package repo
import (
"fmt"
"io/ioutil"
"net/http"
"path/filepath"
"strings"
"k8s.io/helm/pkg/chart"
)
var localRepoPath string
// StartLocalRepo starts a web server and serves files from the given path
func StartLocalRepo(path string) {
fmt.Println("Now serving you on localhost:8879...")
localRepoPath = path
http.HandleFunc("/", rootHandler)
http.HandleFunc("/charts/", indexHandler)
http.ListenAndServe(":8879", nil)
}
func rootHandler(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "Welcome to the Kubernetes Package manager!\nBrowse charts on localhost:8879/charts!")
}
func indexHandler(w http.ResponseWriter, r *http.Request) {
file := r.URL.Path[len("/charts/"):]
if len(strings.Split(file, ".")) > 1 {
serveFile(w, r, file)
} else if file == "" {
fmt.Fprintf(w, "list of charts should be here at some point")
} else if file == "index" {
fmt.Fprintf(w, "index file data should be here at some point")
} else {
fmt.Fprintf(w, "Ummm... Nothing to see here folks")
}
}
func serveFile(w http.ResponseWriter, r *http.Request, file string) {
http.ServeFile(w, r, filepath.Join(localRepoPath, file))
}
// AddChartToLocalRepo saves a chart in the given path and then reindexes the index file
func AddChartToLocalRepo(ch *chart.Chart, path string) error {
_, err := chart.Save(ch, path)
if err != nil {
return err
}
return Reindex(ch, path+"/index.yaml")
}
// Reindex adds an entry to the index file at the given path
func Reindex(ch *chart.Chart, path string) error {
name := ch.Chartfile().Name + "-" + ch.Chartfile().Version
y, err := LoadIndexFile(path)
if err != nil {
return err
}
found := false
for k := range y.Entries {
if k == name {
found = true
break
}
}
if !found {
url := "localhost:8879/charts/" + name + ".tgz"
out, err := y.addEntry(name, url)
if err != nil {
return err
}
ioutil.WriteFile(path, out, 0644)
}
return nil
}