test: Ensures project withDefaultAlertsSettings works with import and introduce create_only plan modifier
#3105
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| package customplanmodifier | ||
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| import ( | ||
| "context" | ||
| "fmt" | ||
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| "github.com/hashicorp/terraform-plugin-framework/attr" | ||
| "github.com/hashicorp/terraform-plugin-framework/diag" | ||
| "github.com/hashicorp/terraform-plugin-framework/path" | ||
| planmodifier "github.com/hashicorp/terraform-plugin-framework/resource/schema/planmodifier" | ||
| "github.com/hashicorp/terraform-plugin-framework/tfsdk" | ||
| "github.com/hashicorp/terraform-plugin-framework/types" | ||
| ) | ||
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| type Modifier interface { | ||
| planmodifier.String | ||
| planmodifier.Bool | ||
| } | ||
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| // CreateOnlyAttributePlanModifier returns a plan modifier that ensures that update operations fails when the attribute is changed. | ||
| // This is useful for attributes only supported in create and not in update. | ||
| // Never use a schema.Default for create only attributes, instead use WithXXXDefault, the default will lead to plan changes that are not expected after import. | ||
| // Implement CopyFromPlan if the attribute is not in the API Response. | ||
| func CreateOnlyAttributePlanModifier() Modifier { | ||
| return &createOnlyAttributePlanModifier{} | ||
| } | ||
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| func CreateOnlyAttributePlanModifierWithBoolDefault(b bool) Modifier { | ||
| return &createOnlyAttributePlanModifier{defaultBool: &b} | ||
| } | ||
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| type createOnlyAttributePlanModifier struct { | ||
| defaultBool *bool | ||
| } | ||
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| func (d *createOnlyAttributePlanModifier) Description(ctx context.Context) string { | ||
| return d.MarkdownDescription(ctx) | ||
| } | ||
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| func (d *createOnlyAttributePlanModifier) MarkdownDescription(ctx context.Context) string { | ||
| return "Ensures the update operation fails when updating an attribute. If the read after import don't equal the configuration value it will also raise an error." | ||
| } | ||
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| func isCreate(t *tfsdk.State) bool { | ||
| return t.Raw.IsNull() | ||
| } | ||
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| func (d *createOnlyAttributePlanModifier) UseDefault() bool { | ||
| return d.defaultBool != nil | ||
| } | ||
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| func (d *createOnlyAttributePlanModifier) PlanModifyBool(ctx context.Context, req planmodifier.BoolRequest, resp *planmodifier.BoolResponse) { | ||
| if isCreate(&req.State) { | ||
| if !IsKnown(req.PlanValue) && d.UseDefault() { | ||
| resp.PlanValue = types.BoolPointerValue(d.defaultBool) | ||
| } | ||
| return | ||
| } | ||
| if isUpdated(req.StateValue, req.PlanValue) { | ||
| d.addDiags(&resp.Diagnostics, req.Path, req.StateValue) | ||
| } | ||
| if !IsKnown(req.PlanValue) { | ||
| resp.PlanValue = req.StateValue | ||
| } | ||
| } | ||
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| func (d *createOnlyAttributePlanModifier) PlanModifyString(ctx context.Context, req planmodifier.StringRequest, resp *planmodifier.StringResponse) { | ||
| if isCreate(&req.State) { | ||
| return | ||
| } | ||
| if isUpdated(req.StateValue, req.PlanValue) { | ||
| d.addDiags(&resp.Diagnostics, req.Path, req.StateValue) | ||
| } | ||
| if !IsKnown(req.PlanValue) { | ||
| resp.PlanValue = req.StateValue | ||
| } | ||
| } | ||
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| func isUpdated(state, plan attr.Value) bool { | ||
| if !IsKnown(plan) { | ||
| return false | ||
| } | ||
| return !state.Equal(plan) | ||
| } | ||
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| func (d *createOnlyAttributePlanModifier) addDiags(diags *diag.Diagnostics, attrPath path.Path, stateValue attr.Value) { | ||
| message := fmt.Sprintf("%s cannot be updated or set after import, remove it from the configuration or use the state value (see below).", attrPath) | ||
| detail := fmt.Sprintf("The current state value is %s", stateValue) | ||
| diags.AddError(message, detail) | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| package customplanmodifier | ||
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| import "github.com/hashicorp/terraform-plugin-framework/attr" | ||
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| // IsKnown returns true if the attribute is known (not null or unknown). Note that !IsKnown is not the same as IsUnknown because null is !IsKnown but not IsUnknown. | ||
| func IsKnown(attribute attr.Value) bool { | ||
| return !attribute.IsNull() && !attribute.IsUnknown() | ||
| } |
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Can we add a comment on what this plan modifier does & why it's needed?