96 lines
2.6 KiB
Go
96 lines
2.6 KiB
Go
package local
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import (
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"context"
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"fmt"
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"os"
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"github.com/hashicorp/errwrap"
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"github.com/hashicorp/go-multierror"
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"github.com/hashicorp/terraform/backend"
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clistate "github.com/hashicorp/terraform/command/state"
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"github.com/hashicorp/terraform/config/module"
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"github.com/hashicorp/terraform/state"
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)
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func (b *Local) opRefresh(
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ctx context.Context,
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op *backend.Operation,
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runningOp *backend.RunningOperation) {
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// Check if our state exists if we're performing a refresh operation. We
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// only do this if we're managing state with this backend.
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if b.Backend == nil {
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if _, err := os.Stat(b.StatePath); err != nil {
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if os.IsNotExist(err) {
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runningOp.Err = fmt.Errorf(
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"The Terraform state file for your infrastructure does not\n"+
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"exist. The 'refresh' command only works and only makes sense\n"+
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"when there is existing state that Terraform is managing. Please\n"+
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"double-check the value given below and try again. If you\n"+
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"haven't created infrastructure with Terraform yet, use the\n"+
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"'terraform apply' command.\n\n"+
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"Path: %s",
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b.StatePath)
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return
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}
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runningOp.Err = fmt.Errorf(
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"There was an error reading the Terraform state that is needed\n"+
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"for refreshing. The path and error are shown below.\n\n"+
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"Path: %s\n\nError: %s",
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b.StatePath, err)
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return
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}
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}
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// If we have no config module given to use, create an empty tree to
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// avoid crashes when Terraform.Context is initialized.
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if op.Module == nil {
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op.Module = module.NewEmptyTree()
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}
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// Get our context
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tfCtx, opState, err := b.context(op)
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if err != nil {
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runningOp.Err = err
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return
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}
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if op.LockState {
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lockInfo := state.NewLockInfo()
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lockInfo.Operation = op.Type.String()
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lockID, err := clistate.Lock(opState, lockInfo, b.CLI, b.Colorize())
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if err != nil {
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runningOp.Err = errwrap.Wrapf("Error locking state: {{err}}", err)
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return
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}
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defer func() {
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if err := clistate.Unlock(opState, lockID, b.CLI, b.Colorize()); err != nil {
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runningOp.Err = multierror.Append(runningOp.Err, err)
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}
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}()
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}
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// Set our state
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runningOp.State = opState.State()
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// Perform operation and write the resulting state to the running op
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newState, err := tfCtx.Refresh()
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runningOp.State = newState
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if err != nil {
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runningOp.Err = errwrap.Wrapf("Error refreshing state: {{err}}", err)
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return
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}
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// Write and persist the state
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if err := opState.WriteState(newState); err != nil {
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runningOp.Err = errwrap.Wrapf("Error writing state: {{err}}", err)
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return
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}
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if err := opState.PersistState(); err != nil {
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runningOp.Err = errwrap.Wrapf("Error saving state: {{err}}", err)
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return
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}
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}
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