bin/aux: Allow files to be copied to be parameterized

1 files changed, 28 insertions, 14 deletions

diff --git a/bin/aux b/bin/aux
index e51cfe8..b6509d3 100755
--- a/bin/aux
+++ b/bin/aux
@@ -5,7 +5,7 @@ set -eu
 usage() {
 	cat <<-'EOF'
 		Usage:
-		  aux
+		  aux [FILE...]
 		  aux -h
 	EOF
 }
@@ -18,14 +18,20 @@ help() {
 		  -h, --help    show this message
 
 
-		Hydrate software project with auxiliary files.
+		Hydrate software project with auxiliary files.  If FILE is
+		given, restrict effect to those paths.
 
 
 		Examples:
 
-		  Just run it:
+		  Just run it with default values:
 
 		    $ aux
+
+
+		  Get only the "tests/assert-shellcheck.sh" file:
+
+		    $ aux tests/assert-shellcheck.sh
 	EOF
 }
 
@@ -69,14 +75,22 @@ cp_all() {
 	done
 }
 
-cp_all \
-	aux/.gitignore              \
-	aux/lib.sh                  \
-	aux/tld.txt                 \
-	aux/workflow/favicon.svg    \
-	aux/workflow/head.html      \
-	aux/workflow/md2html.sh     \
-	aux/workflow/style.css      \
-	aux/workflow/preamble.md.in \
-	aux/workflow/TODOs.sh       \
-	aux/ci/report.sh            \
+FILES='
+aux/.gitignore
+aux/lib.sh
+aux/tld.txt
+aux/workflow/favicon.svg
+aux/workflow/head.html
+aux/workflow/md2html.sh
+aux/workflow/style.css
+aux/workflow/preamble.md.in
+aux/workflow/TODOs.sh
+aux/ci/report.sh
+'
+
+if [ $# = 0 ]; then
+	# shellcheck disable=2086
+	cp_all $FILES
+else
+	cp_all "$@"
+fi