add multi-language formatter: topiary (#469)

Site: https://topiary.tweag.io

fixes #468

Working for me locally against OCaml, TOML, and Nickel files.

---

User/contributor toastal wishes this repository was mirrored away from the US proprietary control of Microsoft™ GitHub so users can contribute with privacy & freedom.

README.md

@@ -337,7 +337,8 @@ that caused Neoformat to be invoked.
 - HCL
   - [`hclfmt`](https://github.com/hashicorp/hcl)
 - Toml
-  - [`taplo`](https://taplo.tamasfe.dev/cli/usage/formatting.html)
+  - [`taplo`](https://taplo.tamasfe.dev/cli/usage/formatting.html),
+    [`topiary`](https://topiary.tweag.io)
 - Puppet
   - [`puppet-lint`](https://github.com/rodjek/puppet-lint)
 - PureScript
@@ -375,8 +376,9 @@ that caused Neoformat to be invoked.
     [`prettierd`](https://github.com/fsouza/prettierd),
     [`prettier`](https://github.com/prettier/prettier),
     [`jq`](https://stedolan.github.io/jq/),
-    [`fixjson`](https://github.com/rhysd/fixjson)
-    [`deno fmt`](https://deno.land/manual/tools/formatter)
+    [`fixjson`](https://github.com/rhysd/fixjson),
+    [`deno fmt`](https://deno.land/manual/tools/formatter),
+    [`topiary`](https://topiary.tweag.io)
 - JSONC (JSON with comments)
   - [`prettierd`](https://github.com/fsouza/prettierd),
     [`prettier`](https://github.com/prettier/prettier),
@@ -410,6 +412,8 @@ that caused Neoformat to be invoked.
   - [`matlab-formatter-vscode`](https://github.com/affenwiesel/matlab-formatter-vscode)
 - Nginx
   - [nginxbeautifier](https://github.com/vasilevich/nginxbeautifier)
+- Nickel
+  - [`topiary`](https://topiary.tweag.io)
 - Nim
   - `nimpretty` (ships with [`nim`](https://nim-lang.org/))
 - Nix
@@ -422,7 +426,8 @@ that caused Neoformat to be invoked.
     [`astyle`](http://astyle.sourceforge.net)
 - OCaml
   - [`ocp-indent`](http://www.typerex.org/ocp-indent.html),
-    [`ocamlformat`](https://github.com/ocaml-ppx/ocamlformat)
+    [`ocamlformat`](https://github.com/ocaml-ppx/ocamlformat),
+    [`topiary`](https://topiary.tweag.io)
 - Pandoc Markdown
   - [`pandoc`](https://pandoc.org/MANUAL.html)
 - Pawn
@@ -468,7 +473,8 @@ that caused Neoformat to be invoked.
     [`standard`](https://github.com/testdouble/standard)
     [`prettier`](https://github.com/prettier/plugin-ruby)
 - Rust
-  - [`rustfmt`](https://github.com/rust-lang-nursery/rustfmt)
+  - [`rustfmt`](https://github.com/rust-lang-nursery/rustfmt),
+    [`topiary`](https://topiary.tweag.io)
 - Sass
   - [`sass-convert`](http://sass-lang.com/documentation/#executables),
     [`stylelint`](https://stylelint.io/),
@@ -490,7 +496,8 @@ that caused Neoformat to be invoked.
   - [`shfmt`](https://github.com/mvdan/sh)
     ```vim
     let g:shfmt_opt="-ci"
-    ```
+    ```,
+    [`topiary`](https://topiary.tweag.io)
 - Solidity
   - [`prettierd`](https://github.com/fsouza/prettierd),
     [`prettier`](https://github.com/prettier-solidity/prettier-plugin-solidity),

autoload/neoformat/formatters/json.vim

@@ -1,5 +1,5 @@
 function! neoformat#formatters#json#enabled() abort
-    return ['jsbeautify', 'prettydiff', 'prettierd', 'prettier', 'jq', 'fixjson', 'denofmt']
+    return ['jsbeautify', 'prettydiff', 'prettierd', 'prettier', 'jq', 'fixjson', 'denofmt', 'topiary']
 endfunction
 
 function! neoformat#formatters#json#jsbeautify() abort
@@ -51,3 +51,12 @@ function! neoformat#formatters#json#denofmt() abort
         \ 'stdin': 1,
         \ }
 endfunction
+
+function! neoformat#formatters#json#topiary() abort
+    return {
+        \ 'exe': 'topiary',
+        \ 'no_append': 1,
+        \ 'stdin': 1,
+        \ 'args': ['--language', '"json"' ]
+        \ }
+endfunction

autoload/neoformat/formatters/nickel.vim

@@ -0,0 +1,11 @@
+function! neoformat#formatters#nickel#enabled() abort
+    return ['topiary']
+endfunction
+
+function! neoformat#formatters#nickel#topiary() abort
+    return {
+        \ 'exe': 'topiary',
+        \ 'stdin': 1,
+        \ 'args': ['--language', '"nickel"' ]
+        \ }
+endfunction

autoload/neoformat/formatters/ocaml.vim

@@ -1,5 +1,5 @@
 function! neoformat#formatters#ocaml#enabled() abort
-    return ['ocamlformat', 'ocpindent']
+    return ['ocamlformat', 'ocpindent', 'topiary']
 endfunction
 
 function! neoformat#formatters#ocaml#ocpindent() abort
@@ -16,3 +16,11 @@ function! neoformat#formatters#ocaml#ocamlformat() abort
         \ 'args': ['--name', '"%:p"', '-']
         \ }
 endfunction
+
+function! neoformat#formatters#ocaml#topiary() abort
+    return {
+        \ 'exe': 'topiary',
+        \ 'stdin': 1,
+        \ 'args': ['--language', '"ocaml"' ]
+        \ }
+endfunction

autoload/neoformat/formatters/rust.vim

@@ -1,5 +1,5 @@
 function! neoformat#formatters#rust#enabled() abort
-    return ['rustfmt']
+    return ['rustfmt', 'topiary']
 endfunction
 
 function! neoformat#formatters#rust#rustfmt() abort
@@ -8,3 +8,11 @@ function! neoformat#formatters#rust#rustfmt() abort
         \ 'stdin': 1,
         \ }
 endfunction
+
+function! neoformat#formatters#rust#topiary() abort
+    return {
+        \ 'exe': 'topiary',
+        \ 'stdin': 1,
+        \ 'args': ['--language', '"rust"' ]
+        \ }
+endfunction

autoload/neoformat/formatters/sh.vim

@@ -1,5 +1,5 @@
 function! neoformat#formatters#sh#enabled() abort
-    return ['shfmt']
+    return ['shfmt', 'topiary']
 endfunction
 
 function! neoformat#formatters#sh#shfmt() abort
@@ -10,3 +10,11 @@ function! neoformat#formatters#sh#shfmt() abort
             \ 'stdin': 1,
             \ }
 endfunction
+
+function! neoformat#formatters#sh#topiary() abort
+    return {
+        \ 'exe': 'topiary',
+        \ 'stdin': 1,
+        \ 'args': ['--language', '"bash"' ]
+        \ }
+endfunction

autoload/neoformat/formatters/toml.vim

@@ -1,5 +1,5 @@
 function! neoformat#formatters#toml#enabled() abort
-  return ['taplo']
+  return ['taplo', 'topiary']
 endfunction
 
 function! neoformat#formatters#toml#taplo() abort
@@ -10,3 +10,11 @@ function! neoformat#formatters#toml#taplo() abort
         \ 'try_node_exe': 1,
         \ }
 endfunction
+
+function! neoformat#formatters#toml#topiary() abort
+    return {
+        \ 'exe': 'topiary',
+        \ 'stdin': 1,
+        \ 'args': ['--language', '"toml"' ]
+        \ }
+endfunction

doc/neoformat.txt

@@ -351,8 +351,9 @@ SUPPORTED FILETYPES				*neoformat-supported-filetypes*
     [`prettierd`](https://github.com/fsouza/prettierd),
     [`prettier`](https://github.com/prettier/prettier),
     [`jq`](https://stedolan.github.io/jq/),
-    [`fixjson`](https://github.com/rhysd/fixjson)
-    [`deno fmt`](https://deno.land/manual/tools/formatter)
+    [`fixjson`](https://github.com/rhysd/fixjson),
+    [`deno fmt`](https://deno.land/manual/tools/formatter),
+    [`topiary`](https://topiary.tweag.io)
 - Kotlin
   - [`ktlint`](https://github.com/shyiko/ktlint)
     [`prettierd`](https://github.com/fsouza/prettierd),
@@ -379,6 +380,8 @@ SUPPORTED FILETYPES				*neoformat-supported-filetypes*
   - [`matlab-formatter-vscode`](https://github.com/affenwiesel/matlab-formatter-vscode)
 - Nginx
   - [nginxbeautifier](https://github.com/vasilevich/nginxbeautifier)
+- Nickel
+  - [`topiary`](https://topiary.tweag.io)
 - Nim
   - nimpretty (ships with [nim](https://nim-lang.org/)),
 - Nix
@@ -390,8 +393,9 @@ SUPPORTED FILETYPES				*neoformat-supported-filetypes*
     [`clang-format`](http://clang.llvm.org/docs/ClangFormat.html),
     [`astyle`](http://astyle.sourceforge.net)
 - OCaml
-  - [`ocp-indent`](http://www.typerex.org/ocp-indent.html)
-  - [`ocamlformat`](https://github.com/ocaml-ppx/ocamlformat)
+  - [`ocp-indent`](http://www.typerex.org/ocp-indent.html),
+    [`ocamlformat`](https://github.com/ocaml-ppx/ocamlformat),
+    [`topiary`](https://topiary.tweag.io)
 - Pandoc Markdown
   - [`pandoc`](https://pandoc.org/MANUAL.html)
 - Pawn
@@ -437,7 +441,8 @@ SUPPORTED FILETYPES				*neoformat-supported-filetypes*
   - [`standard`](https://github.com/testdouble/standard)
   - [`prettier`](https://github.com/prettier/plugin-ruby)
 - Rust
-  - [`rustfmt`](https://github.com/rust-lang-nursery/rustfmt)
+  - [`rustfmt`](https://github.com/rust-lang-nursery/rustfmt),
+    [`topiary`](https://topiary.tweag.io)
 - Sass
   - [`sass-convert`](http://sass-lang.com/documentation/#executables),
     [`stylelint`](https://stylelint.io/),
@@ -456,7 +461,8 @@ SUPPORTED FILETYPES				*neoformat-supported-filetypes*
     [`prettydiff`](https://github.com/prettydiff/prettydiff),
     [`csscomb`](http://csscomb.com)
 - Shell
-  - [`shfmt`](https://github.com/mvdan/sh)
+  - [`shfmt`](https://github.com/mvdan/sh),
+    [`topiary`](https://topiary.tweag.io)
 - Solidity
   - [`prettierd`](https://github.com/fsouza/prettierd),
     [`prettier`](https://github.com/prettier-solidity/prettier-plugin-solidity)
@@ -486,7 +492,8 @@ SUPPORTED FILETYPES				*neoformat-supported-filetypes*
     [`clang-format`](http://clang.llvm.org/docs/ClangFormat.html),
     [`deno fmt`](https://deno.land/manual/tools/formatter)
 - Toml
-  - [`taplo`](https://taplo.tamasfe.dev/cli/usage/formatting.html)
+  - [`taplo`](https://taplo.tamasfe.dev/cli/usage/formatting.html),
+    [`topiary`](https://topiary.tweag.io)
 - V
   - `v fmt` (ships with [`v`](https://vlang.io))
 - VALA