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https://github.com/hcl-emacs/terraform-mode

Major mode of Terraform configuration file
https://github.com/hcl-emacs/terraform-mode

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Major mode of Terraform configuration file

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# terraform-mode.el ![Tests](https://github.com/emacsorphanage/terraform-mode/workflows/Tests/badge.svg) [![melpa badge][melpa-badge]][melpa-link] [![melpa stable badge][melpa-stable-badge]][melpa-stable-link]

Major mode of [Terraform](http://www.terraform.io/) configuration file

## Screenshot

![terraform-mode](image/terraform-mode.png)

#### imenu(`helm-imenu`)

![terraform-mode](image/terraform-mode-imenu.png)

## Installation

You can install `terraform-mode.el` from [MELPA](https://melpa.org/) by `package.el`.

## Features

- Syntax highlighting
- Indentation
- imenu
- Formatting using `terraform fmt`
- Block folding
- easier access to Terraform resource documentation

### Block folding

`terraform-mode` sets up `outline-mode` variables for block folding.
To use `outline-mode` for block folding, enable `outline-minor-mode`
in `terraform-mode-hook`:

``` emacs-lisp
(add-hook 'terraform-mode-hook #'outline-minor-mode)
```

You can use `outline-toggle-children` bound to `C-c C-f` to toggle
visibility of a block at point.

We also provide function `terraform-toggle-or-indent` which
folds-or-indents. It is not bound by default, but you can bind it to
`TAB` or any other key.

### Access to Terraform resource documentation

Within a `resource` or a `data` block, type `C-c C-d C-w` to open a new
browser tab with the resource or data documentation page.

Type `C-c C-d C-c` to kill the URL (i.e. copy it to the clipboard) for the documentation page rather than directly open it in the browser.

You can also type `C-c C-d C-r` to insert a comment containing a link to
this documentation right above the resource or data block.

This feature requires either:

- a `required_provider` declaration in any `.tf` file in current directory
(see [Terraform doc](https://developer.hashicorp.com/terraform/language/providers/requirements#requiring-providers))
- a working `terraform providers` command. This command may require a
valid token (at least for AWS).

## Customize Variables

#### `terraform-indent-level`(Default: `2`)

Indentation size. You need to call `revert-buffer` if you change this value outer of hook such as `eval-expression`.

#### `terraform-format-on-save`(Default `nil`)

Set to `t` to automatically format the buffer on save.

## Sample Configuration

```emacs-lisp
(custom-set-variables
'(terraform-indent-level 4))
```

With `use-package`

``` emacs-lisp
(use-package terraform-mode
;; if using straight
;; :straight t

;; if using package.el
;; :ensure t
:custom (terraform-indent-level 4)
:config
(defun my-terraform-mode-init ()
;; if you want to use outline-minor-mode
;; (outline-minor-mode 1)
)

(add-hook 'terraform-mode-hook 'my-terraform-mode-init))
```

## See Also

- [hcl-mode](https://github.com/syohex/emacs-hcl-mode)

This major-mode inherits from hcl-mode. Most of syntax features, like highlighting, indentation are implemented in hcl-mode.

[melpa-link]: https://melpa.org/#/terraform-mode
[melpa-stable-link]: https://stable.melpa.org/#/terraform-mode
[melpa-badge]: https://melpa.org/packages/terraform-mode-badge.svg
[melpa-stable-badge]: https://stable.melpa.org/packages/terraform-mode-badge.svg