548 lines
16 KiB
Go
548 lines
16 KiB
Go
package views
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import (
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"fmt"
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"os"
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"sort"
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"strings"
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"github.com/hashicorp/hcl/v2/hclwrite"
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"github.com/hashicorp/terraform/internal/addrs"
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"github.com/hashicorp/terraform/internal/command/arguments"
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"github.com/hashicorp/terraform/internal/configs/configschema"
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"github.com/hashicorp/terraform/internal/lang/marks"
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"github.com/hashicorp/terraform/internal/tfdiags"
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"github.com/zclconf/go-cty/cty"
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)
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// Add is the view interface for the "terraform add" command.
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type Add interface {
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Resource(addrs.AbsResourceInstance, *configschema.Block, addrs.LocalProviderConfig, cty.Value) error
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Diagnostics(tfdiags.Diagnostics)
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}
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// NewAdd returns an initialized Validate implementation. At this time,
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// ViewHuman is the only implemented view type.
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func NewAdd(vt arguments.ViewType, view *View, args *arguments.Add) Add {
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return &addHuman{
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view: view,
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optional: args.Optional,
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outPath: args.OutPath,
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}
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}
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type addHuman struct {
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view *View
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optional bool
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outPath string
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}
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func (v *addHuman) Resource(addr addrs.AbsResourceInstance, schema *configschema.Block, pc addrs.LocalProviderConfig, stateVal cty.Value) error {
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var buf strings.Builder
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buf.WriteString(fmt.Sprintf("resource %q %q {\n", addr.Resource.Resource.Type, addr.Resource.Resource.Name))
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if pc.LocalName != addr.Resource.Resource.ImpliedProvider() || pc.Alias != "" {
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buf.WriteString(strings.Repeat(" ", 2))
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buf.WriteString(fmt.Sprintf("provider = %s\n", pc.StringCompact()))
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}
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if stateVal.RawEquals(cty.NilVal) {
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if err := v.writeConfigAttributes(&buf, schema.Attributes, 2); err != nil {
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return err
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}
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if err := v.writeConfigBlocks(&buf, schema.BlockTypes, 2); err != nil {
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return err
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}
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} else {
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if err := v.writeConfigAttributesFromExisting(&buf, stateVal, schema.Attributes, 2); err != nil {
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return err
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}
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if err := v.writeConfigBlocksFromExisting(&buf, stateVal, schema.BlockTypes, 2); err != nil {
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return err
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}
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}
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buf.WriteString("}")
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// The output better be valid HCL which can be parsed and formatted.
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formatted := hclwrite.Format([]byte(buf.String()))
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var err error
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if v.outPath == "" {
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_, err = v.view.streams.Println(string(formatted))
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return err
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} else {
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// The Println call above adds this final newline automatically; we add it manually here.
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formatted = append(formatted, '\n')
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return os.WriteFile(v.outPath, formatted, 0600)
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}
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}
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func (v *addHuman) Diagnostics(diags tfdiags.Diagnostics) {
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v.view.Diagnostics(diags)
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}
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func (v *addHuman) writeConfigAttributes(buf *strings.Builder, attrs map[string]*configschema.Attribute, indent int) error {
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if len(attrs) == 0 {
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return nil
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}
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// Get a list of sorted attribute names so the output will be consistent between runs.
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keys := make([]string, 0, len(attrs))
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for k := range attrs {
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keys = append(keys, k)
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}
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sort.Strings(keys)
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for i := range keys {
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name := keys[i]
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attrS := attrs[name]
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if attrS.NestedType != nil {
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if err := v.writeConfigNestedTypeAttribute(buf, name, attrS, indent); err != nil {
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return err
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}
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continue
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}
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if attrS.Required {
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString(fmt.Sprintf("%s = ", name))
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tok := hclwrite.TokensForValue(attrS.EmptyValue())
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if _, err := tok.WriteTo(buf); err != nil {
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return err
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}
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writeAttrTypeConstraint(buf, attrS)
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} else if attrS.Optional && v.optional {
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString(fmt.Sprintf("%s = ", name))
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tok := hclwrite.TokensForValue(attrS.EmptyValue())
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if _, err := tok.WriteTo(buf); err != nil {
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return err
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}
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writeAttrTypeConstraint(buf, attrS)
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}
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}
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return nil
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}
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func (v *addHuman) writeConfigAttributesFromExisting(buf *strings.Builder, stateVal cty.Value, attrs map[string]*configschema.Attribute, indent int) error {
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if len(attrs) == 0 {
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return nil
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}
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// Get a list of sorted attribute names so the output will be consistent between runs.
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keys := make([]string, 0, len(attrs))
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for k := range attrs {
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keys = append(keys, k)
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}
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sort.Strings(keys)
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for i := range keys {
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name := keys[i]
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attrS := attrs[name]
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if attrS.NestedType != nil {
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if err := v.writeConfigNestedTypeAttributeFromExisting(buf, name, attrS, stateVal, indent); err != nil {
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return err
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}
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continue
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}
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// Exclude computed-only attributes
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if attrS.Required || attrS.Optional {
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString(fmt.Sprintf("%s = ", name))
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var val cty.Value
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if stateVal.Type().HasAttribute(name) {
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val = stateVal.GetAttr(name)
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} else {
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val = attrS.EmptyValue()
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}
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if attrS.Sensitive || val.HasMark(marks.Sensitive) {
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buf.WriteString("null # sensitive")
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} else {
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val, _ = val.Unmark()
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tok := hclwrite.TokensForValue(val)
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if _, err := tok.WriteTo(buf); err != nil {
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return err
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}
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}
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buf.WriteString("\n")
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}
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}
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return nil
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}
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func (v *addHuman) writeConfigBlocks(buf *strings.Builder, blocks map[string]*configschema.NestedBlock, indent int) error {
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if len(blocks) == 0 {
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return nil
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}
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// Get a list of sorted block names so the output will be consistent between runs.
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names := make([]string, 0, len(blocks))
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for k := range blocks {
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names = append(names, k)
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}
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sort.Strings(names)
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for i := range names {
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name := names[i]
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blockS := blocks[name]
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if err := v.writeConfigNestedBlock(buf, name, blockS, indent); err != nil {
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return err
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}
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}
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return nil
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}
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func (v *addHuman) writeConfigNestedBlock(buf *strings.Builder, name string, schema *configschema.NestedBlock, indent int) error {
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if !v.optional && schema.MinItems == 0 {
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return nil
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}
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switch schema.Nesting {
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case configschema.NestingSingle, configschema.NestingGroup:
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString(fmt.Sprintf("%s {", name))
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writeBlockTypeConstraint(buf, schema)
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if err := v.writeConfigAttributes(buf, schema.Attributes, indent+2); err != nil {
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return err
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}
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if err := v.writeConfigBlocks(buf, schema.BlockTypes, indent+2); err != nil {
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return err
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}
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buf.WriteString("}\n")
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return nil
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case configschema.NestingList, configschema.NestingSet:
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString(fmt.Sprintf("%s {", name))
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writeBlockTypeConstraint(buf, schema)
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if err := v.writeConfigAttributes(buf, schema.Attributes, indent+2); err != nil {
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return err
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}
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if err := v.writeConfigBlocks(buf, schema.BlockTypes, indent+2); err != nil {
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return err
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}
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buf.WriteString("}\n")
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return nil
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case configschema.NestingMap:
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buf.WriteString(strings.Repeat(" ", indent))
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// we use an arbitrary placeholder key (block label) "key"
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buf.WriteString(fmt.Sprintf("%s \"key\" {", name))
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writeBlockTypeConstraint(buf, schema)
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if err := v.writeConfigAttributes(buf, schema.Attributes, indent+2); err != nil {
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return err
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}
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if err := v.writeConfigBlocks(buf, schema.BlockTypes, indent+2); err != nil {
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return err
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}
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString("}\n")
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return nil
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default:
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// This should not happen, the above should be exhaustive.
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return fmt.Errorf("unsupported NestingMode %s", schema.Nesting.String())
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}
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}
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func (v *addHuman) writeConfigNestedTypeAttribute(buf *strings.Builder, name string, schema *configschema.Attribute, indent int) error {
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if schema.Required == false && v.optional == false {
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return nil
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}
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString(fmt.Sprintf("%s = ", name))
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switch schema.NestedType.Nesting {
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case configschema.NestingSingle:
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buf.WriteString("{")
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writeAttrTypeConstraint(buf, schema)
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if err := v.writeConfigAttributes(buf, schema.NestedType.Attributes, indent+2); err != nil {
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return err
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}
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString("}\n")
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return nil
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case configschema.NestingList, configschema.NestingSet:
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buf.WriteString("[{")
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writeAttrTypeConstraint(buf, schema)
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if err := v.writeConfigAttributes(buf, schema.NestedType.Attributes, indent+2); err != nil {
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return err
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}
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString("}]\n")
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return nil
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case configschema.NestingMap:
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buf.WriteString("{")
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writeAttrTypeConstraint(buf, schema)
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buf.WriteString(strings.Repeat(" ", indent+2))
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// we use an arbitrary placeholder key "key"
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buf.WriteString("key = {\n")
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if err := v.writeConfigAttributes(buf, schema.NestedType.Attributes, indent+4); err != nil {
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return err
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}
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buf.WriteString(strings.Repeat(" ", indent+2))
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buf.WriteString("}\n")
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString("}\n")
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return nil
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default:
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// This should not happen, the above should be exhaustive.
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return fmt.Errorf("unsupported NestingMode %s", schema.NestedType.Nesting.String())
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}
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}
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func (v *addHuman) writeConfigBlocksFromExisting(buf *strings.Builder, stateVal cty.Value, blocks map[string]*configschema.NestedBlock, indent int) error {
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if len(blocks) == 0 {
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return nil
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}
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// Get a list of sorted block names so the output will be consistent between runs.
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names := make([]string, 0, len(blocks))
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for k := range blocks {
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names = append(names, k)
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}
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sort.Strings(names)
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for _, name := range names {
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blockS := blocks[name]
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// This shouldn't happen in real usage; state always has all values (set
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// to null as needed), but it protects against panics in tests (and any
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// really weird and unlikely cases).
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if !stateVal.Type().HasAttribute(name) {
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continue
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}
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blockVal := stateVal.GetAttr(name)
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if err := v.writeConfigNestedBlockFromExisting(buf, name, blockS, blockVal, indent); err != nil {
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return err
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}
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}
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return nil
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}
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func (v *addHuman) writeConfigNestedTypeAttributeFromExisting(buf *strings.Builder, name string, schema *configschema.Attribute, stateVal cty.Value, indent int) error {
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switch schema.NestedType.Nesting {
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case configschema.NestingSingle:
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if schema.Sensitive || stateVal.HasMark(marks.Sensitive) {
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString(fmt.Sprintf("%s = {} # sensitive\n", name))
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return nil
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}
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString(fmt.Sprintf("%s = {\n", name))
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// This shouldn't happen in real usage; state always has all values (set
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// to null as needed), but it protects against panics in tests (and any
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// really weird and unlikely cases).
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if !stateVal.Type().HasAttribute(name) {
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return nil
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}
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nestedVal := stateVal.GetAttr(name)
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if err := v.writeConfigAttributesFromExisting(buf, nestedVal, schema.NestedType.Attributes, indent+2); err != nil {
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return err
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}
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buf.WriteString("}\n")
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return nil
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case configschema.NestingList, configschema.NestingSet:
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString(fmt.Sprintf("%s = [", name))
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if schema.Sensitive || stateVal.HasMark(marks.Sensitive) {
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buf.WriteString("] # sensitive\n")
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return nil
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}
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buf.WriteString("\n")
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listVals := ctyCollectionValues(stateVal.GetAttr(name))
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for i := range listVals {
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buf.WriteString(strings.Repeat(" ", indent+2))
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// The entire element is marked.
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if listVals[i].HasMark(marks.Sensitive) {
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buf.WriteString("{}, # sensitive\n")
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continue
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}
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buf.WriteString("{\n")
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if err := v.writeConfigAttributesFromExisting(buf, listVals[i], schema.NestedType.Attributes, indent+4); err != nil {
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return err
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}
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buf.WriteString(strings.Repeat(" ", indent+2))
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buf.WriteString("},\n")
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}
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString("]\n")
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return nil
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case configschema.NestingMap:
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString(fmt.Sprintf("%s = {", name))
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if schema.Sensitive || stateVal.HasMark(marks.Sensitive) {
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buf.WriteString(" } # sensitive\n")
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return nil
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}
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buf.WriteString("\n")
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vals := stateVal.GetAttr(name).AsValueMap()
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keys := make([]string, 0, len(vals))
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for key := range vals {
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keys = append(keys, key)
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}
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sort.Strings(keys)
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for _, key := range keys {
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buf.WriteString(strings.Repeat(" ", indent+2))
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buf.WriteString(fmt.Sprintf("%s = {", key))
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// This entire value is marked
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if vals[key].HasMark(marks.Sensitive) {
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buf.WriteString("} # sensitive\n")
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continue
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}
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buf.WriteString("\n")
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if err := v.writeConfigAttributesFromExisting(buf, vals[key], schema.NestedType.Attributes, indent+4); err != nil {
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return err
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}
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buf.WriteString(strings.Repeat(" ", indent+2))
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buf.WriteString("}\n")
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}
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString("}\n")
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return nil
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default:
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// This should not happen, the above should be exhaustive.
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return fmt.Errorf("unsupported NestingMode %s", schema.NestedType.Nesting.String())
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}
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}
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func (v *addHuman) writeConfigNestedBlockFromExisting(buf *strings.Builder, name string, schema *configschema.NestedBlock, stateVal cty.Value, indent int) error {
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switch schema.Nesting {
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case configschema.NestingSingle, configschema.NestingGroup:
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString(fmt.Sprintf("%s {", name))
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// If the entire value is marked, don't print any nested attributes
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if stateVal.HasMark(marks.Sensitive) {
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buf.WriteString("} # sensitive\n")
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return nil
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}
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buf.WriteString("\n")
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if err := v.writeConfigAttributesFromExisting(buf, stateVal, schema.Attributes, indent+2); err != nil {
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return err
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}
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if err := v.writeConfigBlocksFromExisting(buf, stateVal, schema.BlockTypes, indent+2); err != nil {
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return err
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}
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buf.WriteString("}\n")
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return nil
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case configschema.NestingList, configschema.NestingSet:
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if stateVal.HasMark(marks.Sensitive) {
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString(fmt.Sprintf("%s {} # sensitive\n", name))
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return nil
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}
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listVals := ctyCollectionValues(stateVal)
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for i := range listVals {
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString(fmt.Sprintf("%s {\n", name))
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if err := v.writeConfigAttributesFromExisting(buf, listVals[i], schema.Attributes, indent+2); err != nil {
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return err
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}
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if err := v.writeConfigBlocksFromExisting(buf, listVals[i], schema.BlockTypes, indent+2); err != nil {
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return err
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}
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buf.WriteString("}\n")
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}
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return nil
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case configschema.NestingMap:
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// If the entire value is marked, don't print any nested attributes
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if stateVal.HasMark(marks.Sensitive) {
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buf.WriteString(fmt.Sprintf("%s {} # sensitive\n", name))
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return nil
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}
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vals := stateVal.AsValueMap()
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keys := make([]string, 0, len(vals))
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for key := range vals {
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keys = append(keys, key)
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}
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sort.Strings(keys)
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for _, key := range keys {
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString(fmt.Sprintf("%s %q {", name, key))
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// This entire map element is marked
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if vals[key].HasMark(marks.Sensitive) {
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buf.WriteString("} # sensitive\n")
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return nil
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}
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buf.WriteString("\n")
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if err := v.writeConfigAttributesFromExisting(buf, vals[key], schema.Attributes, indent+2); err != nil {
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return err
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}
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if err := v.writeConfigBlocksFromExisting(buf, vals[key], schema.BlockTypes, indent+2); err != nil {
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return err
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}
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buf.WriteString(strings.Repeat(" ", indent))
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buf.WriteString("}\n")
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}
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return nil
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default:
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// This should not happen, the above should be exhaustive.
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return fmt.Errorf("unsupported NestingMode %s", schema.Nesting.String())
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}
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}
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|
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func writeAttrTypeConstraint(buf *strings.Builder, schema *configschema.Attribute) {
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if schema.Required {
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buf.WriteString(" # REQUIRED ")
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} else {
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buf.WriteString(" # OPTIONAL ")
|
|
}
|
|
|
|
if schema.NestedType != nil {
|
|
buf.WriteString(fmt.Sprintf("%s\n", schema.NestedType.ImpliedType().FriendlyName()))
|
|
} else {
|
|
buf.WriteString(fmt.Sprintf("%s\n", schema.Type.FriendlyName()))
|
|
}
|
|
return
|
|
}
|
|
|
|
func writeBlockTypeConstraint(buf *strings.Builder, schema *configschema.NestedBlock) {
|
|
if schema.MinItems > 0 {
|
|
buf.WriteString(" # REQUIRED block\n")
|
|
} else {
|
|
buf.WriteString(" # OPTIONAL block\n")
|
|
}
|
|
return
|
|
}
|
|
|
|
// copied from command/format/diff
|
|
func ctyCollectionValues(val cty.Value) []cty.Value {
|
|
if !val.IsKnown() || val.IsNull() {
|
|
return nil
|
|
}
|
|
|
|
var len int
|
|
if val.IsMarked() {
|
|
val, _ = val.Unmark()
|
|
len = val.LengthInt()
|
|
} else {
|
|
len = val.LengthInt()
|
|
}
|
|
|
|
ret := make([]cty.Value, 0, len)
|
|
for it := val.ElementIterator(); it.Next(); {
|
|
_, value := it.Element()
|
|
ret = append(ret, value)
|
|
}
|
|
|
|
return ret
|
|
}
|