From e132105cc334de949cec721c03186ace9c06ea8b Mon Sep 17 00:00:00 2001
From: John McCardle <mccardle.john@gmail.com>
Date: Tue, 8 Feb 2022 23:17:50 -0500
Subject: [PATCH] Day two: not much to do here, so I made a fun prompt script.

---
 day2_exitcodeprompt.sh | 31 +++++++++++++++++++++++++++++++
 test_error.sh          |  6 ++++++
 2 files changed, 37 insertions(+)
 create mode 100644 day2_exitcodeprompt.sh
 create mode 100755 test_error.sh

diff --git a/day2_exitcodeprompt.sh b/day2_exitcodeprompt.sh
new file mode 100644
index 0000000..661c050
--- /dev/null
+++ b/day2_exitcodeprompt.sh
@@ -0,0 +1,31 @@
+#!/bin/bash
+
+#
+#   Day 2 - Generate Inventory
+#   "Pimp my prompt" with the return value of the last command.
+#   source this from ~/.bashrc or similar to modify PS1 to show the return value of previous command.
+#   Use the "demojify" command to restore your previous prompt after sourcing.
+
+PS1OLD=$PS1
+
+exitprompt ()
+{
+    ERROR="$?"
+    if [ "$ERROR" -eq 0 ]
+    then
+        COLORCODE=32 # foreground green
+        EMOJI="🙂"
+    else
+        COLORCODE=31 # foreground red
+        EMOJI="🙁"
+    fi
+    echo -e "\e[${COLORCODE}m${ERROR}${EMOJI}\e[0m"
+}
+
+demojify ()
+{
+    PS1=$PS1OLD
+}
+
+PS1="$PS1 \$(exitprompt)$ "
+
diff --git a/test_error.sh b/test_error.sh
new file mode 100755
index 0000000..effbc7a
--- /dev/null
+++ b/test_error.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+# Returns a non-zero exit code on purpose to test the day 2 error prompt.
+
+exit 42
+