chore: add form_type_metadata parsing

Author: Emyrk

extract/parameter.go

@@ -1,6 +1,7 @@
 package extract
 
 import (
+	"encoding/json"
 	"fmt"
 	"slices"
 	"strings"
@@ -55,14 +56,21 @@ func ParameterFromBlock(block *terraform.Block) (*types.Parameter, hcl.Diagnosti
 		def = types.ToHCLString(block, defAttr)
 	}
 
+	ftmeta := optionalString(block, "form_type_metadata")
+	formTypeMeta := make(map[string]any)
+	if ftmeta != "" {
+		_ = json.Unmarshal([]byte(ftmeta), &formTypeMeta)
+	}
+
 	p := types.Parameter{
 		Value: pVal,
 		ParameterData: types.ParameterData{
-			Name:        pName,
-			Description: optionalString(block, "description"),
-			Type:        pType,
-			FormType:    formType,
-			Mutable:     optionalBoolean(block, "mutable"),
+			Name:             pName,
+			Description:      optionalString(block, "description"),
+			Type:             pType,
+			FormType:         formType,
+			FormTypeMetadata: ftmeta,
+			Mutable:          optionalBoolean(block, "mutable"),
 			// Default value is always written as a string, then converted
 			// to the correct type.
 			DefaultValue: def,

extract/state.go

@@ -1,6 +1,7 @@
 package extract
 
 import (
+	"encoding/json"
 	"errors"
 	"fmt"
 
@@ -52,22 +53,29 @@ func ParameterFromState(block *tfjson.StateResource) (types.Parameter, error) {
 		return types.Parameter{}, fmt.Errorf("convert param validations: %w", err)
 	}
 
+	ftmeta := st.optionalString("form_type_metadata")
+	var formTypeMeta any
+	if ftmeta != "" {
+		_ = json.Unmarshal([]byte(ftmeta), &formTypeMeta)
+	}
+
 	param := types.Parameter{
 		Value: types.StringLiteral(st.string("value")),
 		ParameterData: types.ParameterData{
-			Name:         st.string("name"),
-			Description:  st.optionalString("description"),
-			Type:         types.ParameterType(st.optionalString("type")),
-			FormType:     provider.ParameterFormType(st.optionalString("form_type")),
-			Mutable:      st.optionalBool("mutable"),
-			DefaultValue: types.StringLiteral(st.optionalString("default")),
-			Icon:         st.optionalString("icon"),
-			Options:      options,
-			Validations:  validations,
-			Required:     st.optionalBool("required"),
-			DisplayName:  st.optionalString("display_name"),
-			Order:        st.optionalInteger("order"),
-			Ephemeral:    st.optionalBool("ephemeral"),
+			Name:             st.string("name"),
+			Description:      st.optionalString("description"),
+			Type:             types.ParameterType(st.optionalString("type")),
+			FormType:         provider.ParameterFormType(st.optionalString("form_type")),
+			FormTypeMetadata: formTypeMeta,
+			Mutable:          st.optionalBool("mutable"),
+			DefaultValue:     types.StringLiteral(st.optionalString("default")),
+			Icon:             st.optionalString("icon"),
+			Options:          options,
+			Validations:      validations,
+			Required:         st.optionalBool("required"),
+			DisplayName:      st.optionalString("display_name"),
+			Order:            st.optionalInteger("order"),
+			Ephemeral:        st.optionalBool("ephemeral"),
 		},
 	}
 

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/aquasecurity/trivy v0.58.2
 	github.com/coder/guts v1.0.2-0.20250227211802-139809366a22
 	github.com/coder/serpent v0.10.0
-	github.com/coder/terraform-provider-coder/v2 v2.2.1-0.20250313232118-21ff5ae2bf31
+	github.com/coder/terraform-provider-coder/v2 v2.2.1-0.20250317152424-16ab5102775e
 	github.com/coder/websocket v1.8.13
 	github.com/go-chi/chi v4.1.2+incompatible
 	github.com/hashicorp/go-version v1.7.0

go.sum

@@ -720,8 +720,8 @@ github.com/coder/pretty v0.0.0-20230908205945-e89ba86370e0 h1:3A0ES21Ke+FxEM8CXx
 github.com/coder/pretty v0.0.0-20230908205945-e89ba86370e0/go.mod h1:5UuS2Ts+nTToAMeOjNlnHFkPahrtDkmpydBen/3wgZc=
 github.com/coder/serpent v0.10.0 h1:ofVk9FJXSek+SmL3yVE3GoArP83M+1tX+H7S4t8BSuM=
 github.com/coder/serpent v0.10.0/go.mod h1:cZFW6/fP+kE9nd/oRkEHJpG6sXCtQ+AX7WMMEHv0Y3Q=
-github.com/coder/terraform-provider-coder/v2 v2.2.1-0.20250313232118-21ff5ae2bf31 h1:JpDe/YonsKNbpbfruoniS/N0ozBV8Ekd67auoGOi3lY=
-github.com/coder/terraform-provider-coder/v2 v2.2.1-0.20250313232118-21ff5ae2bf31/go.mod h1:X28s3rz+aEM5PkBKvk3xcUrQFO2eNPjzRChUg9wb70U=
+github.com/coder/terraform-provider-coder/v2 v2.2.1-0.20250317152424-16ab5102775e h1:CW8AyXdqeGRk6wE1L9py5jFbJrlGBwrUNbyb+26NrFU=
+github.com/coder/terraform-provider-coder/v2 v2.2.1-0.20250317152424-16ab5102775e/go.mod h1:X28s3rz+aEM5PkBKvk3xcUrQFO2eNPjzRChUg9wb70U=
 github.com/coder/websocket v1.8.13 h1:f3QZdXy7uGVz+4uCJy2nTZyM0yTBj8yANEHhqlXZ9FE=
 github.com/coder/websocket v1.8.13/go.mod h1:LNVeNrXQZfe5qhS9ALED3uA+l5pPqvwXg3CKoDBB2gs=
 github.com/containerd/log v0.1.0 h1:TCJt7ioM2cr/tfR8GPbGf9/VRAX8D2B4PjzCpfX540I=

testdata/demo/parameters.tf

@@ -64,11 +64,19 @@ data "coder_parameter" "cpu" {
   display_name = "CPU"
   description  = "The number of CPU cores"
   type         = "number"
+  form_type    = "slider"
   default      = "2"
   icon         = "/icon/memory.svg"
   mutable      = true
   order        = 20
 
+  form_type_metadata = jsonencode({
+    "minumum" = 1
+    "budget"  = 2
+    "performance" = module.base.security_level == "high" ? 4 : 8
+  })
+
+
   validation {
     min = 1
     // Confidential instances are more expensive, or some justification like

testdata/demo_flat/parameters.tf

@@ -69,12 +69,19 @@ data "coder_parameter" "cpu" {
   name         = "cpu"
   display_name = "CPU"
   description  = "The number of CPU cores"
+  form_type    = "slider"
   type         = "number"
   default      = "2"
   icon         = "/icon/memory.svg"
   mutable      = true
   order        = 20
 
+  form_type_metadata = jsonencode({
+    "minumum" = 1
+    "budget"  = 2
+    "performance" = local.secutity_level == "high" ? 4 : 8
+  })
+
   validation {
     min = 1
     // Confidential instances are more expensive, or some justification like

types/parameter.go

@@ -45,17 +45,18 @@ type Parameter struct {
 }
 
 type ParameterData struct {
-	Name         string                     `json:"name"`
-	DisplayName  string                     `json:"display_name"`
-	Description  string                     `json:"description"`
-	Type         ParameterType              `json:"type"`
-	FormType     provider.ParameterFormType `json:"form_type"`
-	Mutable      bool                       `json:"mutable"`
-	DefaultValue HCLString                  `json:"default_value"`
-	Icon         string                     `json:"icon"`
-	Options      []*ParameterOption         `json:"options"`
-	Validations  []*ParameterValidation     `json:"validations"`
-	Required     bool                       `json:"required"`
+	Name             string                     `json:"name"`
+	DisplayName      string                     `json:"display_name"`
+	Description      string                     `json:"description"`
+	Type             ParameterType              `json:"type"`
+	FormType         provider.ParameterFormType `json:"form_type"`
+	FormTypeMetadata any                        `json:"form_type_metadata"`
+	Mutable          bool                       `json:"mutable"`
+	DefaultValue     HCLString                  `json:"default_value"`
+	Icon             string                     `json:"icon"`
+	Options          []*ParameterOption         `json:"options"`
+	Validations      []*ParameterValidation     `json:"validations"`
+	Required         bool                       `json:"required"`
 	// legacy_variable_name was removed (= 14)
 	Order     int64 `json:"order"`
 	Ephemeral bool  `json:"ephemeral"`