Add datasets module

cli/src/datasets.rs

@@ -0,0 +1,26 @@
+use sqlite::Connection;
+use std::path::{Path, PathBuf};
+
+/// Return the path to a dataset.
+fn dataset_path(config_dir: &Path, dataset: &str) -> PathBuf {
+    let mut path = config_dir.to_owned();
+    path.push("datasets");
+    path.push(dataset);
+    path.set_extension("sqlite");
+    path
+}
+
+/// Create a new dataset given a path.
+pub fn new_dataset(dataset: &Path) -> sqlite::Result<Connection> {
+    let query = "
+        CREATE TABLE players (
+            id INTEGER PRIMARY KEY ASC,
+            name TEXT,
+            elo REAL
+        ) STRICT;
+    ";
+
+    let connection = sqlite::open(dataset)?;
+    connection.execute(query)?;
+    Ok(connection)
+}

cli/src/main.rs

@@ -8,6 +8,7 @@ mod queries;
 use queries::*;
 use search_games::{VideogameSearch, VideogameSearchVars};
 
+mod datasets;
 
 fn get_auth_key(config_dir: &Path) -> Option<String> {
     use std::env::{var, VarError};