terraform-fmt
terraform-fmt documentation
- Version in MegaLinter: 1.4.6
- Visit Official Web Site
Configuration in MegaLinter
- Enable terraform-fmt by adding TERRAFORM_TERRAFORM_FMTin ENABLE_LINTERS variable
- Disable terraform-fmt by adding TERRAFORM_TERRAFORM_FMTin DISABLE_LINTERS variable
- Enable autofixes by adding TERRAFORM_TERRAFORM_FMTin APPLY_FIXES variable
| Variable | Description | Default value | 
|---|---|---|
| TERRAFORM_TERRAFORM_FMT_ARGUMENTS | User custom arguments to add in linter CLI call Ex: -s --foo "bar" | |
| TERRAFORM_TERRAFORM_FMT_FILTER_REGEX_INCLUDE | Custom regex including filter Ex: (src\|lib) | Include every file | 
| TERRAFORM_TERRAFORM_FMT_FILTER_REGEX_EXCLUDE | Custom regex excluding filter Ex: (test\|examples) | Exclude no file | 
| TERRAFORM_TERRAFORM_FMT_CLI_LINT_MODE | Override default CLI lint mode - file: Calls the linter for each file- project: Call the linter from the root of the project | file | 
| TERRAFORM_TERRAFORM_FMT_FILE_EXTENSIONS | Allowed file extensions. "*"matches any extension,""matches empty extension. Empty list excludes all filesEx: [".py", ""] | [".tf"] | 
| TERRAFORM_TERRAFORM_FMT_FILE_NAMES_REGEX | File name regex filters. Regular expression list for filtering files by their base names using regex full match. Empty list includes all files Ex: ["Dockerfile(-.+)?", "Jenkinsfile"] | Include every file | 
| TERRAFORM_TERRAFORM_FMT_PRE_COMMANDS | List of bash commands to run before the linter | None | 
| TERRAFORM_TERRAFORM_FMT_POST_COMMANDS | List of bash commands to run after the linter | None | 
| TERRAFORM_TERRAFORM_FMT_DISABLE_ERRORS | Run linter but consider errors as warnings | true | 
| TERRAFORM_TERRAFORM_FMT_DISABLE_ERRORS_IF_LESS_THAN | Maximum number of errors allowed | 0 | 
| TERRAFORM_TERRAFORM_FMT_CLI_EXECUTABLE | Override CLI executable | ['terraform'] | 
IDE Integration
Use terraform-fmt in your favorite IDE to catch errors before MegaLinter !
| IDE | Extension Name | Install | |
|---|---|---|---|
| Atom | terraform-fmt | Visit Web Site | |
| IDEA | HashiCorp Terraform / HCL language support | ||
| Sublime Text | Terrafmt | Visit Web Site | |
| Visual Studio Code | HashiCorp Terraform |  | 
MegaLinter Flavours
This linter is available in the following flavours
| Flavor | Description | Embedded linters | Info | |
|---|---|---|---|---|
|  | all | Default MegaLinter Flavor | 113 | |
| cupcake | MegaLinter for the most commonly used languages | 81 | ||
| terraform | Optimized for TERRAFORM based projects | 51 | 
Behind the scenes
How are identified applicable files
- File extensions: .tf
How the linting is performed
- terraform-fmt is called one time by identified file (fileCLI lint mode)
Example calls
terraform fmt myfile.tf
Help content
Usage: terraform [global options] <subcommand> [args]
The available commands for execution are listed below.
The primary workflow commands are given first, followed by
less common or more advanced commands.
Main commands:
  init          Prepare your working directory for other commands
  validate      Check whether the configuration is valid
  plan          Show changes required by the current configuration
  apply         Create or update infrastructure
  destroy       Destroy previously-created infrastructure
All other commands:
  console       Try Terraform expressions at an interactive command prompt
  fmt           Reformat your configuration in the standard style
  force-unlock  Release a stuck lock on the current workspace
  get           Install or upgrade remote Terraform modules
  graph         Generate a Graphviz graph of the steps in an operation
  import        Associate existing infrastructure with a Terraform resource
  login         Obtain and save credentials for a remote host
  logout        Remove locally-stored credentials for a remote host
  metadata      Metadata related commands
  output        Show output values from your root module
  providers     Show the providers required for this configuration
  refresh       Update the state to match remote systems
  show          Show the current state or a saved plan
  state         Advanced state management
  taint         Mark a resource instance as not fully functional
  test          Experimental support for module integration testing
  untaint       Remove the 'tainted' state from a resource instance
  version       Show the current Terraform version
  workspace     Workspace management
Global options (use these before the subcommand, if any):
  -chdir=DIR    Switch to a different working directory before executing the
                given subcommand.
  -help         Show this help output, or the help for a specified subcommand.
  -version      An alias for the "version" subcommand.
Installation on mega-linter Docker image
- Dockerfile commands :
FROM alpine/terragrunt:latest as terragrunt
COPY --link --from=terragrunt /bin/terraform /usr/bin/