terraform/command/refresh.go

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package command
import (
"fmt"
"strings"
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"github.com/hashicorp/terraform/backend"
"github.com/hashicorp/terraform/command/arguments"
"github.com/hashicorp/terraform/command/views"
"github.com/hashicorp/terraform/terraform"
"github.com/hashicorp/terraform/tfdiags"
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)
// RefreshCommand is a cli.Command implementation that refreshes the state
// file.
type RefreshCommand struct {
Meta
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}
func (c *RefreshCommand) Run(args []string) int {
args = c.Meta.process(args)
cmdFlags := c.Meta.extendedFlagSet("refresh")
cmdFlags.StringVar(&c.Meta.statePath, "state", "", "path")
cmdFlags.IntVar(&c.Meta.parallelism, "parallelism", DefaultParallelism, "parallelism")
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cmdFlags.StringVar(&c.Meta.stateOutPath, "state-out", "", "path")
cmdFlags.StringVar(&c.Meta.backupPath, "backup", "", "path")
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cmdFlags.BoolVar(&c.Meta.stateLock, "lock", true, "lock state")
cmdFlags.DurationVar(&c.Meta.stateLockTimeout, "lock-timeout", 0, "lock timeout")
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cmdFlags.Usage = func() { c.Ui.Error(c.Help()) }
if err := cmdFlags.Parse(args); err != nil {
c.Ui.Error(fmt.Sprintf("Error parsing command-line flags: %s\n", err.Error()))
return 1
}
diags := c.parseTargetFlags()
if diags.HasErrors() {
c.showDiagnostics(diags)
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return 1
}
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configPath, err := ModulePath(cmdFlags.Args())
if err != nil {
c.Ui.Error(err.Error())
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return 1
}
// Check for user-supplied plugin path
if c.pluginPath, err = c.loadPluginPath(); err != nil {
c.Ui.Error(fmt.Sprintf("Error loading plugin path: %s", err))
return 1
}
backendConfig, configDiags := c.loadBackendConfig(configPath)
diags = diags.Append(configDiags)
if configDiags.HasErrors() {
c.showDiagnostics(diags)
return 1
}
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// Load the backend
b, backendDiags := c.Backend(&BackendOpts{
Config: backendConfig,
})
diags = diags.Append(backendDiags)
if backendDiags.HasErrors() {
c.showDiagnostics(diags)
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return 1
}
// Before we delegate to the backend, we'll print any warning diagnostics
// we've accumulated here, since the backend will start fresh with its own
// diagnostics.
c.showDiagnostics(diags)
diags = nil
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// Build the operation
opReq := c.Operation(b)
opReq.ConfigDir = configPath
opReq.Hooks = []terraform.Hook{c.uiHook()}
opReq.ShowDiagnostics = c.showDiagnostics
opReq.Type = backend.OperationTypeRefresh
opReq.ConfigLoader, err = c.initConfigLoader()
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if err != nil {
c.showDiagnostics(err)
return 1
}
{
var moreDiags tfdiags.Diagnostics
opReq.Variables, moreDiags = c.collectVariableValues()
diags = diags.Append(moreDiags)
if moreDiags.HasErrors() {
c.showDiagnostics(diags)
return 1
}
}
op, err := c.RunOperation(b, opReq)
if err != nil {
c.showDiagnostics(err)
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return 1
}
if op.Result != backend.OperationSuccess {
return op.Result.ExitStatus()
}
if op.State != nil {
outputValues := op.State.RootModule().OutputValues
if len(outputValues) > 0 {
c.Ui.Output(c.Colorize().Color("[reset][bold][green]\nOutputs:\n\n"))
view := views.NewOutput(arguments.ViewHuman, c.View)
view.Output("", outputValues)
}
}
return op.Result.ExitStatus()
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}
func (c *RefreshCommand) Help() string {
helpText := `
Usage: terraform refresh [options]
Update the state file of your infrastructure with metadata that matches
the physical resources they are tracking.
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This will not modify your infrastructure, but it can modify your
state file to update metadata. This metadata might cause new changes
to occur when you generate a plan or call apply next.
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Options:
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-backup=path Path to backup the existing state file before
modifying. Defaults to the "-state-out" path with
".backup" extension. Set to "-" to disable backup.
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-compact-warnings If Terraform produces any warnings that are not
accompanied by errors, show them in a more compact form
that includes only the summary messages.
-input=true Ask for input for variables if not directly set.
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-lock=true Lock the state file when locking is supported.
-lock-timeout=0s Duration to retry a state lock.
-no-color If specified, output won't contain any color.
-state=path Path to read and save state (unless state-out
is specified). Defaults to "terraform.tfstate".
-state-out=path Path to write updated state file. By default, the
"-state" path will be used.
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-target=resource Resource to target. Operation will be limited to this
resource and its dependencies. This flag can be used
multiple times.
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-var 'foo=bar' Set a variable in the Terraform configuration. This
flag can be set multiple times.
-var-file=foo Set variables in the Terraform configuration from
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a file. If "terraform.tfvars" or any ".auto.tfvars"
files are present, they will be automatically loaded.
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`
return strings.TrimSpace(helpText)
}
func (c *RefreshCommand) Synopsis() string {
return "Update the state to match remote systems"
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}