Start working on a cache solution. Keep the html, so I can test with parsing in a more controlled way.

Cargo.lock

@@ -141,6 +141,15 @@ dependencies = [
  "syn 0.15.23 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "directories"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.45 (registry+https://github.com/rust-lang/crates.io-index)",
+ "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "dtoa"
 version = "0.4.3"
@@ -1309,6 +1318,7 @@ dependencies = [
 name = "whoareyou"
 version = "0.1.0"
 dependencies = [
+ "directories 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "reqwest 0.9.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "scraper 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1369,6 +1379,7 @@ dependencies = [
 "checksum crossbeam-utils 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)" = "41ee4864f4797060e52044376f7d107429ce1fb43460021b126424b7180ee21a"
 "checksum cssparser 0.24.1 (registry+https://github.com/rust-lang/crates.io-index)" = "b200a7193703a615c8d2751fed1ede39b9c4b3905e09d1ec7064a24688c190fc"
 "checksum cssparser-macros 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "b16e382d9b983fdb9ac6a36b37fdeb84ce3ea81f749febfee3463cfa7f24275e"
+"checksum directories 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "72d337a64190607d4fcca2cb78982c5dd57f4916e19696b48a575fa746b6cb0f"
 "checksum dtoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6d301140eb411af13d3115f9a562c85cc6b541ade9dfa314132244aaee7489dd"
 "checksum dtoa-short 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "59020b8513b76630c49d918c33db9f4c91638e7d3404a28084083b87e33f76f2"
 "checksum ego-tree 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9733f6ada1734cb25b4033b2855ec78feb267971a2dd76012974906ba8780074"

Cargo.toml

@@ -5,5 +5,6 @@ authors = ["Anders Olsson <anders.e.olsson@gmail.com>"]
 edition = "2018"
 
 [dependencies]
+directories = "1.0"
 reqwest = "0.9"
 scraper = "0.9"

src/main.rs

@@ -1,9 +1,10 @@
 use std::env;
 
+use directories::ProjectDirs;
 use scraper::{Html, Selector};
 
 trait Probe {
-    fn search(&mut self, number: &str);
+    fn search(&mut self, _: &str);
 }
 
 // https://www.hitta.se/vem-ringde/{}
@@ -63,7 +64,33 @@ impl Probe for KonsumentInfo {
     fn search(&mut self, _: &str) {}
 }
 
+struct Context {
+    dirs: ProjectDirs,
+}
+
+impl Context {
+    fn new() -> Context {
+        Context {
+            dirs: ProjectDirs::from("com", "logaritmisk", "whoareyou").unwrap(),
+        }
+    }
+
+    fn cache_get(&mut self, key: &str) -> Option<Vec<u8>> {
+        None
+    }
+
+    fn cache_set(&mut self, key: &str) {
+
+    }
+}
+
 fn main() {
+    if let Some(proj_dirs) = ProjectDirs::from("com", "logaritmisk", "whoareyou") {
+        println!("{:?}", proj_dirs.cache_dir());
+    }
+
+    std::process::exit(0);
+
     let number = env::args()
         .nth(1)
         .expect("must specify a number to search for");