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state.go
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state.go
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package format
import (
"bytes"
"fmt"
"sort"
"strings"
"github.com/zclconf/go-cty/cty"
"github.com/hashicorp/terraform/internal/addrs"
"github.com/hashicorp/terraform/internal/configs/configschema"
"github.com/hashicorp/terraform/internal/plans"
"github.com/hashicorp/terraform/internal/states"
"github.com/hashicorp/terraform/internal/terraform"
"github.com/mitchellh/colorstring"
)
// StateOpts are the options for formatting a state.
type StateOpts struct {
// State is the state to format. This is required.
State *states.State
// Schemas are used to decode attributes. This is required.
Schemas *terraform.Schemas
// Color is the colorizer. This is optional.
Color *colorstring.Colorize
}
// State takes a state and returns a string
func State(opts *StateOpts) string {
if opts.Color == nil {
panic("colorize not given")
}
if opts.Schemas == nil {
panic("schemas not given")
}
s := opts.State
if len(s.Modules) == 0 {
return "The state file is empty. No resources are represented."
}
buf := bytes.NewBufferString("[reset]")
p := blockBodyDiffPrinter{
buf: buf,
color: opts.Color,
action: plans.NoOp,
verbose: true,
}
// Format all the modules
for _, m := range s.Modules {
formatStateModule(p, m, opts.Schemas)
}
// Write the outputs for the root module
m := s.RootModule()
if m.OutputValues != nil {
if len(m.OutputValues) > 0 {
p.buf.WriteString("Outputs:\n\n")
}
// Sort the outputs
ks := make([]string, 0, len(m.OutputValues))
for k := range m.OutputValues {
ks = append(ks, k)
}
sort.Strings(ks)
// Output each output k/v pair
for _, k := range ks {
v := m.OutputValues[k]
p.buf.WriteString(fmt.Sprintf("%s = ", k))
if v.Sensitive {
p.buf.WriteString("(sensitive value)")
} else {
p.writeValue(v.Value, plans.NoOp, 0)
}
p.buf.WriteString("\n")
}
}
trimmedOutput := strings.TrimSpace(p.buf.String())
trimmedOutput += "[reset]"
return opts.Color.Color(trimmedOutput)
}
func formatStateModule(p blockBodyDiffPrinter, m *states.Module, schemas *terraform.Schemas) {
// First get the names of all the resources so we can show them
// in alphabetical order.
names := make([]string, 0, len(m.Resources))
for name := range m.Resources {
names = append(names, name)
}
sort.Strings(names)
// Go through each resource and begin building up the output.
for _, key := range names {
for k, v := range m.Resources[key].Instances {
// keep these in order to keep the current object first, and
// provide deterministic output for the deposed objects
type obj struct {
header string
instance *states.ResourceInstanceObjectSrc
}
instances := []obj{}
addr := m.Resources[key].Addr
resAddr := addr.Resource
taintStr := ""
if v.Current != nil && v.Current.Status == 'T' {
taintStr = " (tainted)"
}
instances = append(instances,
obj{fmt.Sprintf("# %s:%s\n", addr.Instance(k), taintStr), v.Current})
for dk, v := range v.Deposed {
instances = append(instances,
obj{fmt.Sprintf("# %s: (deposed object %s)\n", addr.Instance(k), dk), v})
}
// Sort the instances for consistent output.
// Starting the sort from the second index, so the current instance
// is always first.
sort.Slice(instances[1:], func(i, j int) bool {
return instances[i+1].header < instances[j+1].header
})
for _, obj := range instances {
header := obj.header
instance := obj.instance
p.buf.WriteString(header)
if instance == nil {
// this shouldn't happen, but there's nothing to do here so
// don't panic below.
continue
}
var schema *configschema.Block
provider := m.Resources[key].ProviderConfig.Provider
if _, exists := schemas.Providers[provider]; !exists {
// This should never happen in normal use because we should've
// loaded all of the schemas and checked things prior to this
// point. We can't return errors here, but since this is UI code
// we will try to do _something_ reasonable.
p.buf.WriteString(fmt.Sprintf("# missing schema for provider %q\n\n", provider.String()))
continue
}
switch resAddr.Mode {
case addrs.ManagedResourceMode:
schema, _ = schemas.ResourceTypeConfig(
provider,
resAddr.Mode,
resAddr.Type,
)
if schema == nil {
p.buf.WriteString(fmt.Sprintf(
"# missing schema for provider %q resource type %s\n\n", provider, resAddr.Type))
continue
}
p.buf.WriteString(fmt.Sprintf(
"resource %q %q {",
resAddr.Type,
resAddr.Name,
))
case addrs.DataResourceMode:
schema, _ = schemas.ResourceTypeConfig(
provider,
resAddr.Mode,
resAddr.Type,
)
if schema == nil {
p.buf.WriteString(fmt.Sprintf(
"# missing schema for provider %q data source %s\n\n", provider, resAddr.Type))
continue
}
p.buf.WriteString(fmt.Sprintf(
"data %q %q {",
resAddr.Type,
resAddr.Name,
))
default:
// should never happen, since the above is exhaustive
p.buf.WriteString(resAddr.String())
}
val, err := instance.Decode(schema.ImpliedType())
if err != nil {
fmt.Println(err.Error())
break
}
path := make(cty.Path, 0, 3)
result := p.writeBlockBodyDiff(schema, val.Value, val.Value, 2, path)
if result.bodyWritten {
p.buf.WriteString("\n")
}
p.buf.WriteString("}\n\n")
}
}
}
p.buf.WriteString("\n")
}