dotfiles

commit 667f27e98e23570e8f6e6beba3ffb4dc4fe474f9
parent a79f4375d8121f09a1b2ed45ed592dc90ed6a213
Author: hhvn <dev@hhvn.uk>
Date:   Wed,  7 Jul 2021 18:29:50 +0100

.s/b/plumb: substitute env variables before plumbing

Diffstat:
M
.scripts/bin/plumb
 | 
19
++++++++++++++++++-

1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/.scripts/bin/plumb b/.scripts/bin/plumb
@@ -12,6 +12,23 @@ fmatches(){
 	file "$arg" | grep -Ei "$@" >/dev/null
 }
 
+_envsubst(){
+	str="$*"
+
+	env | 
+	while read -r line
+	do
+		str=$(echo "$str" | awk -v "var=${line%%=*}" -v "val=${line#*=}" '
+			{
+				regex = sprintf("\\$%s", var)
+				gsub(regex, val)
+				print
+			}'
+		)
+		echo "$str"
+	done | tail -n 1
+}
+
 plumb(){
 	t="$1"; shift
 	[ $norun -eq 1 ] && return
@@ -49,7 +66,7 @@ do
 	export norun=0
 	export gui=0
 	export proxy=""
-	export arg
+	export arg=$(_envsubst "$arg")
 
 	# remove file://
 	matches "^file://" &&