styles/iceg: handle the case of an unset GST_ENV when testing for it

[config/bash_prompt.git] / styles / iceg

diff --git a/styles/iceg b/styles/iceg
index a89c9dc..e72017b 100644 (file)
--- a/styles/iceg
+++ b/styles/iceg
@@ -15,6 +15,14 @@ PS1+="[${BOLD_WHITE}\#${BOLD_CYAN}]"
 PS1+="${MODE_GRAPHIC}${HORIZ_LINE}${MODE_DEFAULT}"
 PS1+="[${BOLD_RED}\${ERR}${BOLD_CYAN}]"
 
+# GST_ENV is set before the gst-build subshell starts and is valid until the
+# subshell exits, so it's OK to only check it once and for all when the prompt
+# is defined.
+if [[ -n "${GST_ENV-}" ]];
+then
+  PS1+="${MODE_GRAPHIC}${HORIZ_LINE}${MODE_DEFAULT}[ ${BOLD_MAGENTA}${GST_ENV}${BOLD_CYAN} ]"
+fi
+
 # VCSH_DIRECTORY is set before a vcsh subshell starts and is valid until the
 # subshell exits, so it's OK to only check it once and for all when the prompt
 # is defined.