added try to automatically create database directory

Cargo.toml

@@ -9,7 +9,7 @@ license     = "MIT"
 name        = "nhentai_archivist"
 readme      = "readme.md"
 repository  = "https://github.com/9-FS/nhentai_archivist"
-version     = "3.1.2"
+version     = "3.1.3"
 
 [dependencies]
 chrono = { version = "^0.4.0", features = ["serde"] }

docker-compose.yaml

@@ -3,7 +3,7 @@ version: "3"
 services:
     nhentai_archivist:
         container_name: "nhentai_archivist"
-        image: "ghcr.io/9-fs/nhentai_archivist:3.1.2"
+        image: "ghcr.io/9-fs/nhentai_archivist:3.1.3"
         environment:
             HOST_OS: "Unraid"
             PGID: 100

readme.md

@@ -13,7 +13,7 @@ I'm happy about anyone who finds my software useful and feedback is also always
 ## Installation
 
 1. Execute the program once to create a default `./config/.env`. This means that in the directory of the executable, there should now be a directory called "config" containing a file called ".env". You might need to enable seeing hidden files in the file explorer.
-1. Confirm the database directory in `DATABASE_URL` exists already, which is `./db/` by default. It is not created automatically because the URL could point to a remote directory, though I am open to suggestions here. The database file will and should be created automatically.
+1. Confirm the database directory at `DATABASE_URL` exists, which is `./db/` by default. It is possible that it is not created automatically because the URL could point to a remote directory. The database file will and should be created automatically.
 1. If you have problems with nhentai's bot protection (error 403), set `CF_CLEARANCE`, `CSRFTOKEN`, and `USER_AGENT`. Though I recommend setting the latter 2 in any case.
 
     ### Mozilla Firefox

src/config.rs

@@ -27,7 +27,7 @@ impl Default for Config
         {
             CF_CLEARANCE: "".to_string(),
             CSRFTOKEN: "".to_string(),
-            DATABASE_URL: "sqlite://./db/db.sqlite".to_owned(),
+            DATABASE_URL: "./db/db.sqlite".to_owned(),
             DEBUG: None, // no entry in default config, defaults to false
             DOWNLOADME_FILEPATH: "./config/downloadme.txt".to_owned(),
             LIBRARY_PATH: "./hentai/".to_string(),

src/connect_to_db.rs

@@ -50,6 +50,23 @@ pub async fn connect_to_db(database_url: &str) -> Result<sqlx::sqlite::SqlitePoo
 
     if !sqlx::sqlite::Sqlite::database_exists(database_url).await? // if database does not exist
     {
+        match std::path::Path::new(database_url).parent()
+        {
+            Some(parent) =>
+            {
+                #[cfg(target_family = "unix")]
+                if let Err(e) = tokio::fs::DirBuilder::new().recursive(true).mode(0o777).create(parent).await // create all parent directories with permissions "drwxrwxrwx"
+                {
+                    log::warn!("Creating parent directories for new database at \"{database_url}\" failed with {e}.\nThis could be expected behaviour, usually if this is a remote pointing URL and not a local filepath. In that case create the parent directories manually.");
+                }
+                #[cfg(not(target_family = "unix"))]
+                if let Err(e) = tokio::fs::DirBuilder::new().recursive(true).create(parent).await // create all parent directories
+                {
+                    log::warn!("Creating parent directories for new database at \"{database_url}\" failed with {e}.\nThis could be expected behaviour, usually if this is a remote pointing URL and not a local filepath. In that case create the parent directories manually.");
+                }
+            }
+            None => log::warn!("Creating parent directories for new database at \"{database_url}\", because the directory part could not be parsed.\nThis could be expected behaviour, usually if this is a remote pointing URL and not a local filepath. In that case create the parent directories manually."),
+        }
         sqlx::sqlite::Sqlite::create_database(database_url).await?; // create new database
         log::info!("Created new database at \"{}\".", database_url);