prelude.sh: Add err function

Author: jan-revay

pre-commit-hook.sh

@@ -9,12 +9,12 @@ echo -e "${GREEN} ######  RUNNING PRE-COMMIT HOOKS  ###### ${NC}"
 
 files=$(find . -type f -name "*.sh" -exec shfmt -l {} \;)
 if [ -n "$files" ]; then
-    echo "Error: The following shell files need formatting:"
-    echo "$files"
-    echo ""
-    echo "Running: find . -type f -name \"*.sh\" -exec shfmt -w {} \\;"
+    err "Error: The following shell files need formatting:"
+    err "$files"
+    err
+    err "Running: find . -type f -name \"*.sh\" -exec shfmt -w {} \\;"
     find . -type f -name "*.sh" -execdir shfmt -w {} \;
-    echo "git add the formatted files and commit again"
+    err "git add the formatted files and commit again"
     exit 1
 fi
 

prelude.sh

@@ -178,4 +178,8 @@ if [[ "${__INITPC_PRELUDE_SOURCED__}" != "true" ]]; then
         done
         set -x
     }
+    err()
+    {
+        echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
+    }
 fi