hotfix(logging): atomically create tmp folders

src/main.rs

@@ -26,7 +26,10 @@ use crate::layout::Layout;
 use crate::os_input_output::{get_os_input, OsApi};
 use crate::pty_bus::{PtyBus, PtyInstruction, VteEvent};
 use crate::screen::{Screen, ScreenInstruction};
-use crate::utils::{consts::MOSAIC_IPC_PIPE, logging::*};
+use crate::utils::{
+    consts::{MOSAIC_IPC_PIPE, MOSAIC_TMP_DIR, MOSAIC_TMP_LOG_DIR},
+    logging::*,
+};
 
 #[derive(Serialize, Deserialize, Debug)]
 enum ApiCommand {
@@ -84,6 +87,8 @@ pub fn main() {
         stream.write_all(&api_command).unwrap();
     } else {
         let os_input = get_os_input();
+        atomic_create_dir(MOSAIC_TMP_DIR).unwrap();
+        atomic_create_dir(MOSAIC_TMP_LOG_DIR).unwrap();
         start(Box::new(os_input), opts);
     }
 }

src/utils/consts.rs

@@ -1,3 +1,4 @@
-pub const MOSAIC_TMP_LOG_FILE: &str = "/tmp/mosaic/mosaic-log/log.txt";
+pub const MOSAIC_TMP_DIR: &str = "/tmp/mosaic";
 pub const MOSAIC_TMP_LOG_DIR: &str = "/tmp/mosaic/mosaic-log";
+pub const MOSAIC_TMP_LOG_FILE: &str = "/tmp/mosaic/mosaic-log/log.txt";
 pub const MOSAIC_IPC_PIPE: &str = "/tmp/mosaic/ipc";

src/utils/logging.rs

@@ -7,10 +7,22 @@ use std::{
 
 use crate::utils::consts::{MOSAIC_TMP_LOG_DIR, MOSAIC_TMP_LOG_FILE};
 
-fn atomic_create_file(file_name: &str) {
+pub fn atomic_create_file(file_name: &str) {
     let _ = fs::OpenOptions::new().create(true).open(file_name);
 }
 
+pub fn atomic_create_dir(dir_name: &str) -> io::Result<()> {
+    if let Err(e) = fs::create_dir(dir_name) {
+        if e.kind() == std::io::ErrorKind::AlreadyExists {
+            Ok(())
+        } else {
+            Err(e)
+        }
+    } else {
+        Ok(())
+    }
+}
+
 pub fn debug_log_to_file(message: String) -> io::Result<()> {
     atomic_create_file(MOSAIC_TMP_LOG_FILE);
     let mut file = fs::OpenOptions::new()