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feat main: Warn if resource set contains no templates

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If a resource set is specified by the user and does _not_ contain any
templates, a warning will now be printed.

This fixes #79
This commit is contained in:
Vincent Ambo 2017-08-22 19:04:32 +02:00
parent 825506d2e9
commit d22b3694fe
1 changed files with 13 additions and 3 deletions
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16
main.go
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@ -83,6 +83,11 @@ func templateCommand() {
_, resourceSets := loadContextAndResources(templateFile) _, resourceSets := loadContextAndResources(templateFile)
for _, rs := range *resourceSets { for _, rs := range *resourceSets {
if len(rs.Resources) == 0 {
fmt.Fprintf(os.Stderr, "Warning: Resource set '%s' contains no valid templates\n", rs.Name)
break
}
for _, r := range rs.Resources { for _, r := range rs.Resources {
fmt.Fprintf(os.Stderr, "Rendered file %s/%s:\n", rs.Name, r.Filename) fmt.Fprintf(os.Stderr, "Rendered file %s/%s:\n", rs.Name, r.Filename)
fmt.Println(r.Rendered) fmt.Println(r.Rendered)
@ -150,7 +155,12 @@ func loadContextAndResources(file *string) (*context.Context, *[]templater.Rende
func runKubectlWithResources(c *context.Context, kubectlArgs *[]string, resourceSets *[]templater.RenderedResourceSet) error { func runKubectlWithResources(c *context.Context, kubectlArgs *[]string, resourceSets *[]templater.RenderedResourceSet) error {
args := append(*kubectlArgs, fmt.Sprintf("--context=%s", c.Name)) args := append(*kubectlArgs, fmt.Sprintf("--context=%s", c.Name))
for _, resourceSet := range *resourceSets { for _, rs := range *resourceSets {
if len(rs.Resources) == 0 {
fmt.Fprintf(os.Stderr, "Warning: Resource set '%s' contains no valid templates\n", rs.Name)
continue
}
kubectl := exec.Command("kubectl", args...) kubectl := exec.Command("kubectl", args...)
stdin, err := kubectl.StdinPipe() stdin, err := kubectl.StdinPipe()
@ -165,8 +175,8 @@ func runKubectlWithResources(c *context.Context, kubectlArgs *[]string, resource
return meep.New(&KubeCtlError{}, meep.Cause(err)) return meep.New(&KubeCtlError{}, meep.Cause(err))
} }
for _, r := range resourceSet.Resources { for _, r := range rs.Resources {
fmt.Printf("Passing file %s/%s to kubectl\n", resourceSet.Name, r.Filename) fmt.Printf("Passing file %s/%s to kubectl\n", rs.Name, r.Filename)
fmt.Fprintln(stdin, r.Rendered) fmt.Fprintln(stdin, r.Rendered)
} }
stdin.Close() stdin.Close()