Add generate_days script

- Add generate_days script to generate templated files for an advent of
  code year.
- Optimize the fetch.sh script (remove awk usage)

.gitignore

@@ -8,3 +8,4 @@ bin/
 cookies.txt
 res/*/*/input.txt
 Makefile
+compile_flags.txt

Template.cpp

@@ -0,0 +1,31 @@
+#include "common/aoc.h"
+
+namespace y$1::day$2
+{
+  REGISTER_DAY($1, Day$2, std::vector<int>, int);
+
+  REGISTER_TEST_EXAMPLE($1, Day$2, ExampleInput, 1, 0);
+  REGISTER_TEST($1, Day$2, Input, 1, 0);
+  REGISTER_TEST_EXAMPLE($1, Day$2, ExampleInput, 2, 0);
+  REGISTER_TEST($1, Day$2, Input, 2, 0);
+
+  READ_INPUT(input)
+  {
+    std::vector<int> vec;
+    std::string str;
+    while (getline(input, str))
+    {
+    }
+    return vec;
+  }
+
+  OUTPUT1(input)
+  {
+    return 0;
+  }
+
+  OUTPUT2(input)
+  {
+    return 0;
+  }
+}

compile_flags.txt

@@ -1,4 +0,0 @@
--xc++
--Isrc/
--std=c++17
-

fetch.sh

@@ -1,4 +1,4 @@
-#/bin/sh
+#!/bin/sh
 
 if [ ! -e cookies.txt ]; then
     echo "No cookies.txt file exists"
@@ -8,11 +8,11 @@ fi
 list=$(find -name "Day*.cpp" | awk -F '/' '{print $3 "/" $4}' | awk -F '.' '{print $1}' | sed 's/Day//g' | sort)
 
 for item in $list; do
-    year=$(echo $item | awk -F '/' '{print $1}')
-    day=$(echo $item | awk -F '/' '{print $2}')
+    year=${item%/*} # remove everything before /
+    day=${item#*/}  # remove everything after /
     dir="res/$year/day$day/input.txt"
     if [ ! -e $dir ]; then
-        webitem=$(echo $day | sed 's/^0//g')
+        webitem=${day#0}
         echo "Fetching $dir"
         tmp_file=$(mktemp)
         HTTP_CODE=$(curl -s -w "%{http_code}" -o "$tmp_file" --cookie cookies.txt https://adventofcode.com/$year/day/$webitem/input)

generate_days.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+leading_zero() {
+    printf '%02d\n' $1
+}
+
+if [ $# -le 1 ]; then
+    echo "year and amount of days arguments not passed"
+    exit 1
+fi
+
+mkdir 'src/'$1
+mkdir 'res/'$1
+for i in $(seq 1 $2); do
+    i2=$(leading_zero $i)
+    cat Template.cpp |
+        sed 's/$1/'$1'/g' |
+        sed 's/$2/'$i2'/g' > \
+            'src/'$1'/Day'$i2'.cpp'
+    res_dir='res/'$1'/day'$i2'/'
+    mkdir $res_dir
+    touch $res_dir'/test_input.txt'
+done