Move matrix_sdk store path to user cache directory

Cargo.lock

@@ -413,6 +413,26 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "directories"
+version = "3.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e69600ff1703123957937708eb27f7a564e48885c537782722ed0ba3189ce1d7"
+dependencies = [
+ "dirs-sys",
+]
+
+[[package]]
+name = "dirs-sys"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "03d86534ed367a67548dc68113a0f5db55432fdfbb6e6f9d77704397d95d5780"
+dependencies = [
+ "libc",
+ "redox_users",
+ "winapi",
+]
+
 [[package]]
 name = "discard"
 version = "1.0.4"
@@ -1199,6 +1219,8 @@ name = "mxadm"
 version = "0.1.0"
 dependencies = [
  "clap",
+ "directories",
+ "lazy_static",
  "matrix-sdk",
  "rpassword",
  "serde",
@@ -1670,6 +1692,16 @@ dependencies = [
  "bitflags",
 ]
 
+[[package]]
+name = "redox_users"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "528532f3d801c87aec9def2add9ca802fe569e44a544afe633765267840abe64"
+dependencies = [
+ "getrandom 0.2.3",
+ "redox_syscall",
+]
+
 [[package]]
 name = "remove_dir_all"
 version = "0.5.3"

Cargo.toml

@@ -13,3 +13,5 @@ matrix-sdk = { git = "https://github.com/matrix-org/matrix-rust-sdk" }
 tokio = { version = "*", features = ["full"] }
 serde = "1.0"
 serde-lexpr = "0.1.0"
+directories = "3.0"
+lazy_static = "1.4.0"

src/commands.rs

@@ -6,7 +6,7 @@ use rpassword::prompt_password_stderr;
 use std::convert::TryFrom;
 use std::io::{self, Write};
 
-use crate::util::{build_client_config, restore_session, save_session};
+use crate::session::{build_client_config, restore_session, save_session};
 
 type CommandResult = Result<(), Box<dyn std::error::Error>>;
 

src/main.rs

@@ -1,8 +1,10 @@
 #[macro_use]
 extern crate clap;
+#[macro_use]
+extern crate lazy_static;
 
 mod commands;
-mod util;
+mod session;
 
 use clap::{App, SubCommand};
 

src/session.rs

@@ -1,11 +1,16 @@
 use matrix_sdk::{Client, ClientConfig, Session};
 use serde_lexpr;
 use std::fs::File;
+use directories::ProjectDirs;
 
 static SESSION_FILE: &str = "session_info";
+lazy_static! {
+    static ref PROJECT_DIRS: ProjectDirs = ProjectDirs::from("me", "petrichor", "mxadm").unwrap();
+}
 
 pub fn build_client_config() -> ClientConfig {
-    ClientConfig::new().store_path("./store")
+    ClientConfig::new()
+        .store_path(PROJECT_DIRS.cache_dir().join("store"))
 }
 
 pub fn save_session(session: Session) -> Result<(), Box<dyn std::error::Error>> {