feat: add starlark as template extension (#168)

* feat: add starlark as template extension

* docs: add reference to the supported extensions

Author: mavimo

docs/resources/template.md

@@ -16,13 +16,25 @@ Manage a template.
 resource "drone_template" "my_pipeline" {
   namespace = "myorg"
   name      = "pipeline1.yaml"
-  data      = "lorem: ipsum"
+  data      = file("${path.module}/templates/pipeline1.yaml")
 }
 
 resource "drone_template" "other_pipeline" {
   namespace = "myorg"
-  name      = "pipeline2.jsonnet"
-  data      = file("${path.module}/templates/pipeline2.jsonnet")
+  name      = "pipeline2.json"
+  data      = file("${path.module}/templates/pipeline2.json")
+}
+
+resource "drone_template" "other_pipeline" {
+  namespace = "myorg"
+  name      = "pipeline3.jsonnet"
+  data      = file("${path.module}/templates/pipeline3.jsonnet")
+}
+
+resource "drone_template" "other_pipeline" {
+  namespace = "myorg"
+  name      = "pipeline4.starlark"
+  data      = file("${path.module}/templates/pipeline4.starlark")
 }
 ```
 
@@ -32,7 +44,7 @@ resource "drone_template" "other_pipeline" {
 ### Required
 
 - `data` (String) Template content
-- `name` (String) Template name
+- `name` (String) Template name, it should end with one of the supported extensions (`yaml`, `json`, `jsonnet` or `starlark`)
 - `namespace` (String) Organization name
 
 ### Read-Only

examples/resources/drone_template/resource.tf

@@ -1,11 +1,23 @@
 resource "drone_template" "my_pipeline" {
   namespace = "myorg"
   name      = "pipeline1.yaml"
-  data      = "lorem: ipsum"
+  data      = file("${path.module}/templates/pipeline1.yaml")
 }
 
 resource "drone_template" "other_pipeline" {
   namespace = "myorg"
-  name      = "pipeline2.jsonnet"
-  data      = file("${path.module}/templates/pipeline2.jsonnet")
+  name      = "pipeline2.json"
+  data      = file("${path.module}/templates/pipeline2.json")
 }
+
+resource "drone_template" "other_pipeline" {
+  namespace = "myorg"
+  name      = "pipeline3.jsonnet"
+  data      = file("${path.module}/templates/pipeline3.jsonnet")
+}
+
+resource "drone_template" "other_pipeline" {
+  namespace = "myorg"
+  name      = "pipeline4.starlark"
+  data      = file("${path.module}/templates/pipeline4.starlark")
+}

internal/provider/resource_template.go

@@ -24,7 +24,7 @@ func resourceTemplate() *schema.Resource {
 			},
 			"name": {
 				Type:             schema.TypeString,
-				Description:      "Template name",
+				Description:      "Template name, it should end with one of the supported extensions (`yaml`, `json`, `jsonnet` or `starlark`)",
 				Required:         true,
 				ForceNew:         true,
 				ValidateDiagFunc: resourceTemplateNameValidation,
@@ -155,7 +155,8 @@ func resourceTemplateNameValidation(name interface{}, path cty.Path) diag.Diagno
 	case
 		".yaml",
 		".jsonnet",
-		".json":
+		".json",
+		".starlark":
 		return diag.Diagnostics{}
 	}
 	return diag.Errorf("Template name %s do not have a valid extension", name)

internal/provider/resource_template_test.go

@@ -48,6 +48,30 @@ func TestAccDroneTemplateResource(t *testing.T) {
 					),
 				),
 			},
+			{
+				Config: testTemplateConfigBasic(
+					"foo",
+					"baz.starlark",
+					"lorem: ipsum",
+				),
+				Check: resource.ComposeTestCheckFunc(
+					resource.TestCheckResourceAttr(
+						"drone_template.template",
+						"namespace",
+						"foo",
+					),
+					resource.TestCheckResourceAttr(
+						"drone_template.template",
+						"name",
+						"baz.starlark",
+					),
+					resource.TestCheckResourceAttr(
+						"drone_template.template",
+						"data",
+						"lorem: ipsum",
+					),
+				),
+			},
 		},
 	})
 }