feat: Add gitcommit support (#261)

Author: jcs090218

.gitmodules

@@ -430,3 +430,9 @@
 	branch = main
 	update = none
 	ignore = dirty
+[submodule "repos/gitcommit"]
+	path = repos/gitcommit
+	url = https://github.com/gbprod/tree-sitter-gitcommit
+	branch = main
+	update = none
+	ignore = dirty

CHANGELOG.md

@@ -1,6 +1,7 @@
 # Changelog
 
 ## Unreleased
+- Add `gitcommit` support
 
 ## 0.12.57 - 2023-10-05
 - Add `gitignore` support

queries/gitcommit/highlights.scm

@@ -0,0 +1,33 @@
+(comment) @comment
+(generated_comment) @comment
+(title) @text.title
+(text) @text
+(branch) @text.reference
+(change) @keyword
+(filepath) @text.uri
+(arrow) @punctuation.delimiter
+
+(subject) @text.title
+(subject (overflow) @text)
+(prefix (type) @keyword)
+(prefix (scope) @parameter)
+(prefix [
+    "("
+    ")"
+    ":"
+] @punctuation.delimiter)
+(prefix [
+    "!"
+] @punctuation.special)
+
+(message) @text
+
+(trailer (token) @keyword)
+(trailer (value) @text)
+
+(breaking_change (token) @text.warning)
+(breaking_change (value) @text)
+
+(scissor) @comment
+
+(ERROR) @error

repos/gitcommit

@@ -126,6 +126,7 @@ See `tree-sitter-langs-repos'."
                 (f90-mode               . fortran)
                 (fortran-mode           . fortran)
                 (gdscript-mode          . gdscript)
+                (git-commit-mode        . gitcommit)
                 (gitattributes-mode     . gitattributes)
                 (gitignore-mode         . gitignore)
                 (go-mode                . go)