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/tools/install_pip.sh b/tools/install_pip.sh
index 2a9d813..87660a6 100755
--- a/tools/install_pip.sh
+++ b/tools/install_pip.sh
@@ -11,7 +11,6 @@
# - if USE_PYTHON3=True, PYTHON3_VERSION refers to a version already installed
set -o errexit
-set -o xtrace
# Keep track of the current directory
TOOLS_DIR=$(cd $(dirname "$0") && pwd)
@@ -23,6 +22,9 @@
# Import common functions
source $TOP_DIR/stackrc
+# don't start tracing until after we've sourced the world
+set -o xtrace
+
FILES=$TOP_DIR/files
PIP_GET_PIP_URL=https://bootstrap.pypa.io/get-pip.py