feat(delta): add 3rd party fallback completion loader

scop · scop · commit 164852f9555d · 2024-12-25T11:57:53.000+02:00
https://dandavison.github.io/delta/tips-and-tricks/shell-completion.html
diff --git a/completions/Makefile.am b/completions/Makefile.am
@@ -83,6 +83,7 @@ cross_platform = 2to3 \
 		dd \
 		declare \
 		deja-dup \
+		_delta \
 		desktop-file-validate \
 		dhclient \
 		dict \
diff --git a/completions/_delta b/completions/_delta
@@ -0,0 +1,8 @@
+# 3rd party completion loader for commands emitting        -*- shell-script -*-
+# their completion using "$cmd --generate-completion bash".
+#
+# This serves as a fallback in case the completion is not installed otherwise.
+
+eval -- "$("$1" --generate-completion bash 2>/dev/null)"
+
+# ex: filetype=sh
diff --git a/test/fallback/completions/Makefile.am b/test/fallback/completions/Makefile.am
@@ -6,6 +6,7 @@ EXTRA_DIST = \
 	chfn \
 	chsh \
 	coder \
+	delta \
 	dmesg \
 	eject \
 	flamegraph \
diff --git a/test/fallback/completions/delta b/test/fallback/completions/delta
@@ -0,0 +1 @@
+../../../completions/_delta

-Original file line number
+Diff line change
 	chfn \
 	chsh \
 	coder \
 +	delta \
 	dmesg \
 	eject \
 	flamegraph \