buildbot-*.sh scripts: clean up colorful messages.

Add helper functions `msginfo`, `msgwarning`, `msgerror`, `msgnote` and
use them in the buildbot scripts.

Bug: none
Test: ran tests in chroot as described in art/test/README.chroot.md,
      observed no changes in the colored output
Change-Id: Ibd577c80ddabef2c04d4f814c46a0d70829f8946

1 files changed, 22 insertions, 0 deletions

diff --git a/tools/buildbot-utils.sh b/tools/buildbot-utils.sh
index 899a9a3eb7..32ed234d90 100755
--- a/tools/buildbot-utils.sh
+++ b/tools/buildbot-utils.sh
@@ -35,3 +35,25 @@ if [ -t 1 ]; then
 
   nc='\033[0m'
 fi
+
+function msginfo() {
+  local heading="$1"
+  shift
+  local message="$*"
+  echo -e "${green}${heading}${nc} ${message}"
+}
+
+function msgwarning() {
+  local message="$*"
+  echo -e "${boldmagenta}Warning: ${nc}${message}"
+}
+
+function msgerror() {
+  local message="$*"
+  echo -e "${boldred}Error: ${nc}${message}"
+}
+
+function msgnote() {
+  local message="$*"
+  echo -e "${boldcyan}Note: ${nc}${message}"
+}