feat: add opa_fmt formatter (#267)

3 files changed, 11 insertions, 0 deletions

diff --git a/README.md b/README.md
index 1432a9d..6e16696 100644
--- a/README.md
+++ b/README.md
@@ -242,6 +242,7 @@ You can view this list in vim with `:help conform-formatters`
 - [nixfmt](https://github.com/serokell/nixfmt) - nixfmt is a formatter for Nix code, intended to apply a uniform style.
 - [nixpkgs_fmt](https://github.com/nix-community/nixpkgs-fmt) - nixpkgs-fmt is a Nix code formatter for nixpkgs.
 - [ocamlformat](https://github.com/ocaml-ppx/ocamlformat) - Auto-formatter for OCaml code.
+- [opa_fmt](https://www.openpolicyagent.org/docs/latest/cli/#opa-fmt) - Format Rego files using `opa fmt` command.
 - [packer_fmt](https://developer.hashicorp.com/packer/docs/commands/fmt) - The packer fmt Packer command is used to format HCL2 configuration files to a canonical format and style.
 - [pangu](https://github.com/vinta/pangu.py) - Insert whitespace between CJK and half-width characters.
 - [perlimports](https://github.com/perl-ide/App-perlimports) - Make implicit Perl imports explicit.
diff --git a/doc/conform.txt b/doc/conform.txt
index c9b929f..ad2c736 100644
--- a/doc/conform.txt
+++ b/doc/conform.txt
@@ -265,6 +265,7 @@ FORMATTERS                                                    *conform-formatter
          style.
 `nixpkgs_fmt` - nixpkgs-fmt is a Nix code formatter for nixpkgs.
 `ocamlformat` - Auto-formatter for OCaml code.
+`opa_fmt` - Format Rego files using `opa fmt` command.
 `packer_fmt` - The packer fmt Packer command is used to format HCL2
              configuration files to a canonical format and style.
 `pangu` - Insert whitespace between CJK and half-width characters.
diff --git a/lua/conform/formatters/opa_fmt.lua b/lua/conform/formatters/opa_fmt.lua
new file mode 100644
index 0000000..b4f95dd
--- /dev/null
+++ b/lua/conform/formatters/opa_fmt.lua
@@ -0,0 +1,9 @@
+---@type conform.FileFormatterConfig
+return {
+  meta = {
+    url = "https://www.openpolicyagent.org/docs/latest/cli/#opa-fmt",
+    description = "Format Rego files using `opa fmt` command.",
+  },
+  command = "opa",
+  args = { "fmt" },
+}