From 392028d823cfe8804a3d97f9bc2a4c4b283e6c74 Mon Sep 17 00:00:00 2001
From: Chris Rose <offbyone@github.com>
Date: Sat, 4 Nov 2023 11:23:00 -0700
Subject: [PATCH] Add support for the ruff python formatter (#236)

This adds support, but does not make it the default
Fixes: #233

---------

Co-authored-by: Radon Rosborough <radon@intuitiveexplanations.com>
---
 CHANGELOG.md                           | 3 +++
 apheleia-formatters.el                 | 5 +++++
 test/formatters/installers/ruff.bash   | 2 ++
 test/formatters/samplecode/ruff/in.py  | 4 ++++
 test/formatters/samplecode/ruff/out.py | 3 +++
 5 files changed, 17 insertions(+)
 create mode 100644 test/formatters/installers/ruff.bash
 create mode 100644 test/formatters/samplecode/ruff/in.py
 create mode 100644 test/formatters/samplecode/ruff/out.py

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 30af85c..1d7cb8f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -69,6 +69,8 @@ The format is based on [Keep a Changelog].
 * [`rubocop`](https://github.com/rubocop/rubocop) for [ruby](https://www.ruby-lang.org/en/) ([#176]).
 * [`ruby-standard`](https://github.com/standardrb/standard) for
   [ruby](https://www.ruby-lang.org/en/) ([#201])
+* [`ruff`](https://github.com/astral-sh/ruff) for 
+  [python](https://python.org) ([#236])
 * [`rufo`](https://github.com/ruby-formatter/rufo) for
   [Ruby](https://www.ruby-lang.org/en/) ([#177]).
 * [`yapf`](https://github.com/google/yapf) for [Python](https://www.python.org/) ([#196])
@@ -94,6 +96,7 @@ The format is based on [Keep a Changelog].
 [#215]: https://github.com/radian-software/apheleia/pull/215
 [#223]: https://github.com/radian-software/apheleia/pull/223
 [#231]: https://github.com/radian-software/apheleia/pull/231
+[#236]: https://github.com/radian-software/apheleia/pull/236
 
 ## 3.2 (released 2023-02-25)
 ### Features
diff --git a/apheleia-formatters.el b/apheleia-formatters.el
index 84aa516..7fee4b7 100644
--- a/apheleia-formatters.el
+++ b/apheleia-formatters.el
@@ -121,6 +121,11 @@
                 "--stderr" "--format" "quiet" "--fail-level" "fatal"))
     (ruby-standard . ("standardrb" "--stdin" filepath "--fix" "--stderr"
                       "--format" "quiet" "--fail-level" "fatal"))
+    (ruff . ("ruff" "format"
+             "--silent"
+             (apheleia-formatters-fill-column "--line-length")
+             "--stdin-filename" filepath
+             "-"))
     (shfmt . ("shfmt"
               "-filename" filepath
               "-ln" (cl-case (bound-and-true-p sh-shell)
diff --git a/test/formatters/installers/ruff.bash b/test/formatters/installers/ruff.bash
new file mode 100644
index 0000000..9f5bf1a
--- /dev/null
+++ b/test/formatters/installers/ruff.bash
@@ -0,0 +1,2 @@
+apt-get install -y python3-pip
+pip install ruff
diff --git a/test/formatters/samplecode/ruff/in.py b/test/formatters/samplecode/ruff/in.py
new file mode 100644
index 0000000..21cdcdb
--- /dev/null
+++ b/test/formatters/samplecode/ruff/in.py
@@ -0,0 +1,4 @@
+def     asdjf   ( l,
+        a):
+    3
+    +4
diff --git a/test/formatters/samplecode/ruff/out.py b/test/formatters/samplecode/ruff/out.py
new file mode 100644
index 0000000..0a63d13
--- /dev/null
+++ b/test/formatters/samplecode/ruff/out.py
@@ -0,0 +1,3 @@
+def asdjf(l, a):
+    3
+    +4