terraform/command/workspace_delete.go

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package command
import (
"context"
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"fmt"
"strings"
"github.com/hashicorp/terraform/command/clistate"
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"github.com/hashicorp/terraform/state"
"github.com/mitchellh/cli"
)
type WorkspaceDeleteCommand struct {
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Meta
LegacyName bool
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}
func (c *WorkspaceDeleteCommand) Run(args []string) int {
args, err := c.Meta.process(args, true)
if err != nil {
return 1
}
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envCommandShowWarning(c.Ui, c.LegacyName)
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force := false
cmdFlags := c.Meta.flagSet("workspace")
cmdFlags.BoolVar(&force, "force", false, "force removal of a non-empty workspace")
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cmdFlags.Usage = func() { c.Ui.Error(c.Help()) }
if err := cmdFlags.Parse(args); err != nil {
return 1
}
args = cmdFlags.Args()
if len(args) == 0 {
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c.Ui.Error("expected NAME.\n")
return cli.RunResultHelp
}
delEnv := args[0]
if !validWorkspaceName(delEnv) {
c.Ui.Error(fmt.Sprintf(envInvalidName, delEnv))
return 1
}
configPath, err := ModulePath(args[1:])
if err != nil {
c.Ui.Error(err.Error())
return 1
}
cfg, err := c.Config(configPath)
if err != nil {
c.Ui.Error(fmt.Sprintf("Failed to load root config module: %s", err))
return 1
}
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// Load the backend
b, err := c.Backend(&BackendOpts{
Config: cfg,
})
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if err != nil {
c.Ui.Error(fmt.Sprintf("Failed to load backend: %s", err))
return 1
}
states, err := b.States()
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if err != nil {
c.Ui.Error(err.Error())
return 1
}
exists := false
for _, s := range states {
if delEnv == s {
exists = true
break
}
}
if !exists {
c.Ui.Error(fmt.Sprintf(strings.TrimSpace(envDoesNotExist), delEnv))
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return 1
}
if delEnv == c.Workspace() {
c.Ui.Error(fmt.Sprintf(strings.TrimSpace(envDelCurrent), delEnv))
return 1
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}
// we need the actual state to see if it's empty
sMgr, err := b.State(delEnv)
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if err != nil {
c.Ui.Error(err.Error())
return 1
}
if err := sMgr.RefreshState(); err != nil {
c.Ui.Error(err.Error())
return 1
}
hasResources := sMgr.State().HasResources()
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if hasResources && !force {
c.Ui.Error(fmt.Sprintf(strings.TrimSpace(envNotEmpty), delEnv))
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return 1
}
// Honor the lock request, for consistency and one final safety check.
if c.stateLock {
lockCtx, cancel := context.WithTimeout(context.Background(), c.stateLockTimeout)
defer cancel()
// Lock the state if we can
lockInfo := state.NewLockInfo()
lockInfo.Operation = "workspace delete"
lockID, err := clistate.Lock(lockCtx, sMgr, lockInfo, c.Ui, c.Colorize())
if err != nil {
c.Ui.Error(fmt.Sprintf("Error locking state: %s", err))
return 1
}
// We need to release the lock just before deleting the state, in case
// the backend can't remove the resource while holding the lock. This
// is currently true for Windows local files.
//
// TODO: While there is little safety in locking while deleting the
// state, it might be nice to be able to coordinate processes around
// state deletion, i.e. in a CI environment. Adding Delete() as a
// required method of States would allow the removal of the resource to
// be delegated from the Backend to the State itself.
clistate.Unlock(sMgr, lockID, c.Ui, c.Colorize())
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}
err = b.DeleteState(delEnv)
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if err != nil {
c.Ui.Error(err.Error())
return 1
}
c.Ui.Output(
c.Colorize().Color(
fmt.Sprintf(envDeleted, delEnv),
),
)
if hasResources {
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c.Ui.Output(
c.Colorize().Color(
fmt.Sprintf(envWarnNotEmpty, delEnv),
),
)
}
return 0
}
func (c *WorkspaceDeleteCommand) Help() string {
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helpText := `
Usage: terraform workspace delete [OPTIONS] NAME [DIR]
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Delete a Terraform workspace
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Options:
-force remove a non-empty workspace.
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`
return strings.TrimSpace(helpText)
}
func (c *WorkspaceDeleteCommand) Synopsis() string {
return "Delete a workspace"
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}