opentofu/backend/local/backend_refresh.go
James Bardin 305ef43aa6 provide contexts to clistate.Lock calls
Add fields required to create an appropriate context for all calls to
clistate.Lock.

Add missing checks for Meta.stateLock, where we would attempt to lock,
even if locking should be skipped.
2017-04-01 17:09:20 -04:00

107 lines
2.8 KiB
Go

package local
import (
"context"
"fmt"
"os"
"strings"
"github.com/hashicorp/errwrap"
"github.com/hashicorp/go-multierror"
"github.com/hashicorp/terraform/backend"
"github.com/hashicorp/terraform/command/clistate"
"github.com/hashicorp/terraform/config/module"
"github.com/hashicorp/terraform/state"
)
func (b *Local) opRefresh(
ctx context.Context,
op *backend.Operation,
runningOp *backend.RunningOperation) {
// Check if our state exists if we're performing a refresh operation. We
// only do this if we're managing state with this backend.
if b.Backend == nil {
if _, err := os.Stat(b.StatePath); err != nil {
if os.IsNotExist(err) {
err = nil
}
if err != nil {
runningOp.Err = fmt.Errorf(
"There was an error reading the Terraform state that is needed\n"+
"for refreshing. The path and error are shown below.\n\n"+
"Path: %s\n\nError: %s",
b.StatePath, err)
return
}
}
}
// If we have no config module given to use, create an empty tree to
// avoid crashes when Terraform.Context is initialized.
if op.Module == nil {
op.Module = module.NewEmptyTree()
}
// Get our context
tfCtx, opState, err := b.context(op)
if err != nil {
runningOp.Err = err
return
}
if op.LockState {
lockCtx, cancel := context.WithTimeout(ctx, op.StateLockTimeout)
defer cancel()
lockInfo := state.NewLockInfo()
lockInfo.Operation = op.Type.String()
lockID, err := clistate.Lock(lockCtx, opState, lockInfo, b.CLI, b.Colorize())
if err != nil {
runningOp.Err = errwrap.Wrapf("Error locking state: {{err}}", err)
return
}
defer func() {
if err := clistate.Unlock(opState, lockID, b.CLI, b.Colorize()); err != nil {
runningOp.Err = multierror.Append(runningOp.Err, err)
}
}()
}
// Set our state
runningOp.State = opState.State()
if runningOp.State.Empty() || !runningOp.State.HasResources() {
if b.CLI != nil {
b.CLI.Output(b.Colorize().Color(
strings.TrimSpace(refreshNoState) + "\n"))
}
}
// Perform operation and write the resulting state to the running op
newState, err := tfCtx.Refresh()
runningOp.State = newState
if err != nil {
runningOp.Err = errwrap.Wrapf("Error refreshing state: {{err}}", err)
return
}
// Write and persist the state
if err := opState.WriteState(newState); err != nil {
runningOp.Err = errwrap.Wrapf("Error writing state: {{err}}", err)
return
}
if err := opState.PersistState(); err != nil {
runningOp.Err = errwrap.Wrapf("Error saving state: {{err}}", err)
return
}
}
const refreshNoState = `
[reset][bold][yellow]Empty or non-existent state file.[reset][yellow]
Refresh will do nothing. Refresh does not error or return an erroneous
exit status because many automation scripts use refresh, plan, then apply
and may not have a state file yet for the first run.
`