terraform/command/get.go

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package command
import (
"fmt"
"strings"
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"github.com/hashicorp/terraform/tfdiags"
)
// GetCommand is a Command implementation that takes a Terraform
// configuration and downloads all the modules.
type GetCommand struct {
Meta
}
func (c *GetCommand) Run(args []string) int {
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var update bool
args = c.Meta.process(args)
cmdFlags := c.Meta.defaultFlagSet("get")
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cmdFlags.BoolVar(&update, "update", false, "update")
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
}
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path, err := ModulePath(cmdFlags.Args())
if err != nil {
c.Ui.Error(err.Error())
return 1
}
path = c.normalizePath(path)
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diags := getModules(&c.Meta, path, update)
c.showDiagnostics(diags)
if diags.HasErrors() {
return 1
}
return 0
}
func (c *GetCommand) Help() string {
helpText := `
Usage: terraform get [options] PATH
Downloads and installs modules needed for the configuration given by
PATH.
This recursively downloads all modules needed, such as modules
imported by modules imported by the root and so on. If a module is
already downloaded, it will not be redownloaded or checked for updates
unless the -update flag is specified.
Module installation also happens automatically by default as part of
the "terraform init" command, so you should rarely need to run this
command separately.
Options:
-update Check already-downloaded modules for available updates
and install the newest versions available.
-no-color Disable text coloring in the output.
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`
return strings.TrimSpace(helpText)
}
func (c *GetCommand) Synopsis() string {
return "Install or upgrade remote Terraform modules"
}
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func getModules(m *Meta, path string, upgrade bool) tfdiags.Diagnostics {
hooks := uiModuleInstallHooks{
Ui: m.Ui,
ShowLocalPaths: true,
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}
return m.installModules(path, upgrade, hooks)
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}