feat: add porcelain output (#1337)

* feat: add porcaline output

* feat(du-cli): add create-stale action

add create-stale action

Signed-off-by: nils måsén

* test(flags): add alias tests

* fix stray format string ref

* fix shell liniting problems

* feat(du-cli): remove created images

* add test for common template

* fix interval/schedule logic

* use porcelain arg as template version

* fix editor save artifacts

* use simpler v1 template

Signed-off-by: nils måsén

pkg/notifications/common_templates.go

@@ -0,0 +1,39 @@
+package notifications
+
+var commonTemplates = map[string]string{
+	`default-legacy`: "{{range .}}{{.Message}}{{println}}{{end}}",
+
+	`default`: `
+{{- if .Report -}}
+  {{- with .Report -}}
+    {{- if ( or .Updated .Failed ) -}}
+{{len .Scanned}} Scanned, {{len .Updated}} Updated, {{len .Failed}} Failed
+      {{- range .Updated}}
+- {{.Name}} ({{.ImageName}}): {{.CurrentImageID.ShortID}} updated to {{.LatestImageID.ShortID}}
+      {{- end -}}
+      {{- range .Fresh}}
+- {{.Name}} ({{.ImageName}}): {{.State}}
+	  {{- end -}}
+	  {{- range .Skipped}}
+- {{.Name}} ({{.ImageName}}): {{.State}}: {{.Error}}
+	  {{- end -}}
+	  {{- range .Failed}}
+- {{.Name}} ({{.ImageName}}): {{.State}}: {{.Error}}
+	  {{- end -}}
+    {{- end -}}
+  {{- end -}}
+{{- else -}}
+  {{range .Entries -}}{{.Message}}{{"\n"}}{{- end -}}
+{{- end -}}`,
+
+	`porcelain.v1.summary-no-log`: `
+{{- if .Report -}}
+  {{- range .Report.All }}
+    {{- .Name}} ({{.ImageName}}): {{.State -}}
+    {{- with .Error}} Error: {{.}}{{end}}{{ println }}
+  {{- else -}}
+    no containers matched filter
+  {{- end -}}
+{{- end -}}`,
+}
+