Miscellaneous tooling fixes

Author: yut23

.lvimrc

@@ -3,4 +3,5 @@ let &path = lh#path#munge(&path, lh#path#fix(g:localvimrc_script_dir . '/aoc_lib
 
 if &filetype ==# 'cpp'
   let b:surround_{char2nr('D')} = "if constexpr (aoc::DEBUG) {\n\r\n}"
+  setlocal shiftwidth=4
 endif

tools/cpp/check_times.zsh

@@ -1,5 +1,4 @@
 #!/usr/bin/env zsh
-set -eu
 # benchmark all days and output a summary
 
 make -q fast || make -j24 fast

tools/cpp/workon

@@ -13,12 +13,15 @@ if ! [[ -e input/day$day/input.txt ]]; then
 fi
 
 declare -a to_edit
-if ! [[ -e input/day$day/example1.txt ]]; then
-  to_edit+=("input/day$day/example1.txt")
+example_input="input/day$day/example1.txt"
+if ! [[ -e $example_input ]]; then
+  to_edit+=("$example_input")
 fi
 mkdir -p "answer_tests/day$day"
 example_answers="answer_tests/day$day/example1.txt"
-if ! [[ -e "$example_answers" ]] || [[ $(wc -l "$example_answers" | cut -d' ' -f1) -lt 2 ]]; then
+if ! [[ -e $example_input ]] \
+    || ! [[ -e $example_answers ]] \
+    || [[ $(wc -l "$example_answers" | cut -d' ' -f1) -lt 2 ]]; then
   if ! [[ -e "$example_answers" ]]; then
     echo "Day ${day#0}:" > "$example_answers"
   fi