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

Author: scop

completions/Makefile.am

@@ -118,6 +118,7 @@ bashcomp_DATA = 2to3 \
 		fio \
 		firefox \
 		flake8 \
+		_flamegraph \
 		freebsd-update \
 		freeciv \
 		freeciv-server \

completions/_flamegraph

@@ -0,0 +1,8 @@
+# 3rd party completion loader for commands emitting        -*- shell-script -*-
+# their completion using "$cmd --completions bash".
+#
+# This serves as a fallback in case the completion is not installed otherwise.
+
+eval -- "$("$1" --completions bash 2>/dev/null)"
+
+# ex: filetype=sh

test/fallback/completions/Makefile.am

@@ -6,6 +6,7 @@ EXTRA_DIST = \
 	chsh \
 	dmesg \
 	eject \
+	flamegraph \
 	gaiacli \
 	gh \
 	golangci-lint \

test/fallback/completions/flamegraph

@@ -0,0 +1 @@
+../../../completions/_flamegraph