Add colorful PS4
PS4 can include functions, so when running in the LOG_COLORS=True mode
provide a grey function line so that it's easier to visually
distinguish the content from the location.
Also make it so the main prompt chunks off all the common path, which
means we can printf to 40 characters and have a pretty reasonable and
readable PS4.
Change-Id: I4a10a49db97d413349bcfceeb8c4164936fbcc40
diff --git a/functions b/functions
index 5730b6c..1bfb8a5 100644
--- a/functions
+++ b/functions
@@ -30,6 +30,19 @@
declare -f -F $1 > /dev/null
}
+# short_source prints out the current location of the caller in a way
+# that strips redundant directories. This is useful for PS4 usage.
+function short_source {
+ saveIFS=$IFS
+ IFS=" "
+ called=($(caller 0))
+ IFS=$saveIFS
+ file=${called[2]}
+ file=${file#$RC_DIR/}
+ printf "%-40s " "$file:${called[1]}:${called[0]}"
+}
+
+
# Retrieve an image from a URL and upload into Glance.
# Uses the following variables:
#