Speed up `which` by avoiding a loop

diff --git a/vcsh b/vcsh
index 8bfafab11689c2bd9e561f4d682e0eb5555c09f5..11370f89e4e1c95da73b086653b56089021e8099 100755 (executable)
--- a/vcsh
+++ b/vcsh
@@ -427,9 +427,7 @@ use() {
 which() {
        [ -e "$VCSH_COMMAND_PARAMETER" ] || fatal "'$VCSH_COMMAND_PARAMETER' does not exist" 1
        for VCSH_REPO_NAME in $(list); do
-               for VCSH_FILE in $(get_files); do
-                       echo "$VCSH_FILE" | grep -q "$VCSH_COMMAND_PARAMETER" && echo "$VCSH_REPO_NAME: $VCSH_FILE"
-               done
+               get_files | grep -- "$VCSH_COMMAND_PARAMETER" | sed "s/^/$VCSH_REPO_NAME: /"
        done | sort -u
 }