// Fetch gets a chart from the source repo and copies to the workdir.
//
// - chartName is the source
// - lname is the local name for that chart (chart-name); if blank, it is set to the chart.
// - homedir is the home directory for the user
func Fetch(chartName, lname, homedir string) {
r := mustConfig(homedir).Repos
repository, chartName := r.RepoChart(chartName)
if lname == "" {
lname = chartName
}
fetch(chartName, lname, homedir, repository)
chartFilePath := helm.WorkspaceChartDirectory(homedir, lname, Chartfile)
cfile, err := chart.LoadChartfile(chartFilePath)
if err != nil {
log.Die("Source is not a valid chart. Missing Chart.yaml: %s", err)
}
deps, err := dependency.Resolve(cfile, helm.WorkspaceChartDirectory(homedir))
if err != nil {
log.Warn("Could not check dependencies: %s", err)
return
}
if len(deps) > 0 {
log.Warn("Unsatisfied dependencies:")
for _, d := range deps {
log.Msg("\t%s %s", d.Name, d.Version)
}
}
log.Info("Fetched chart into workspace %s", helm.WorkspaceChartDirectory(homedir, lname))
log.Info("Done")
}
// dependencyCache builds a map of chart and Chartfile.
func dependencyCache(chartdir string) (map[string]*chart.Chartfile, error) {
cache := map[string]*chart.Chartfile{}
dir, err := os.Open(chartdir)
if err != nil {
return cache, err
}
defer dir.Close()
fis, err := dir.Readdir(0)
if err != nil {
return cache, err
}
for _, fi := range fis {
if !fi.IsDir() {
continue
}
cf, err := chart.LoadChartfile(filepath.Join(chartdir, fi.Name(), "Chart.yaml"))
if err != nil {
// If the chartfile does not load, we ignore it.
continue
}
cache[fi.Name()] = cf
}
return cache, nil
}
// NewIndex creats a new Index.
//
// NewIndex indexes all of the chart tables configured in the config.yaml file.
// For that reason, it may cause substantial overhead on a large set of repos.
func NewIndex(cfg *config.Configfile, cachedir string) *Index {
lines := map[string]string{}
charts := map[string]*chart.Chartfile{}
for _, table := range cfg.Repos.Tables {
def := cfg.Repos.Default == table.Name
base := filepath.Join(cachedir, table.Name, "*/")
dirs, err := filepath.Glob(base)
if err != nil {
log.Err("Failed to read table %s: %s", table.Name, err)
}
for _, dir := range dirs {
bname := filepath.Base(dir)
c, err := chart.LoadChartfile(filepath.Join(dir, "Chart.yaml"))
if err != nil {
// This is not a chart. Skip it.
continue
}
name := table.Name + "/" + c.Name
if def {
name = c.Name
}
line := c.Name + sep + table.Name + "/" + bname + sep + c.Description + sep + c.Details
lines[name] = strings.ToLower(line)
charts[name] = c
}
}
return &Index{lines: lines, charts: charts}
}
func updateChartfile(src, dest, lname string) error {
sc, err := chart.LoadChartfile(filepath.Join(src, Chartfile))
if err != nil {
return err
}
dc, err := chart.LoadChartfile(filepath.Join(dest, Chartfile))
if err != nil {
return err
}
dc.Name = lname
dc.From = &chart.Dependency{
Name: sc.Name,
Version: sc.Version,
Repo: chart.RepoName(src),
}
return dc.Save(filepath.Join(dest, Chartfile))
}
// List lists all of the local charts.
func List(homedir string) {
md := helm.WorkspaceChartDirectory(homedir, "*")
charts, err := filepath.Glob(md)
if err != nil {
log.Warn("Could not find any charts in %q: %s", md, err)
}
for _, c := range charts {
cname := filepath.Base(c)
if ch, err := chart.LoadChartfile(filepath.Join(c, Chartfile)); err == nil {
log.Info("\t%s (%s %s) - %s", cname, ch.Name, ch.Version, ch.Description)
continue
}
log.Info("\t%s (unknown)", cname)
}
}
func TestResolve(t *testing.T) {
cf, err := chart.LoadChartfile(filepath.Join(testInstalldir, "deptest/Chart.yaml"))
if err != nil {
t.Errorf("Could not load chartfile deptest/Chart.yaml: %s", err)
}
missed, err := Resolve(cf, testInstalldir)
if err != nil {
t.Errorf("could not resolve deps in %s: %s", testInstalldir, err)
}
if len(missed) != 2 {
t.Fatalf("Expected dep3 and honkIfYouLoveDucks to be returned")
}
if missed[0].Name != "dep3" {
t.Errorf("Expected dep3 in slot 0. Got %s", missed[0].Name)
}
if missed[1].Name != "honkIfYouLoveDucks" {
t.Errorf("Expected honkIfYouLoveDucks in slot 1. Got %s", missed[1].Name)
}
}
// Info prints information about a chart.
//
// - chartName to display
// - homeDir is the helm home directory for the user
// - format is a optional Go template
func Info(chartName, homedir, format string) {
r := mustConfig(homedir).Repos
table, chartLocal := r.RepoChart(chartName)
chartPath := helm.CacheDirectory(homedir, table, chartLocal, Chartfile)
if format == "" {
format = defaultInfoFormat
}
chart, err := chart.LoadChartfile(chartPath)
if err != nil {
log.Die("Could not find chart %s: %s", chartName, err.Error())
}
tmpl, err := template.New("info").Parse(format)
if err != nil {
log.Die("%s", err)
}
if err = tmpl.Execute(log.Stdout, chart); err != nil {
log.Die("%s", err)
}
}