7.4.2-debian-9-r4 release

bitnami/logstash/7/debian-9/prebuildfs/libfile.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+#
+# Library for managing files
+
+# Functions
+
+########################
+# Ensure a line exists in the file by replacing a matching line.
+# Arguments:
+#   $1 - filename
+#   $2 - line
+#   $3 - match
+# Returns:
+#   None
+#########################
+file_contains_line() {
+    local filename="${1:?filename is required}"
+    local line="${2:?line is required}"
+    local match="${3:?match is required}"
+
+    sed --in-place "s/^$match\$/$line/" "$filename"
+}