2 files changed, 27 insertions, 6 deletions
diff --git a/rust/actualbudget_to_schist_transformer/src/main.rs b/rust/actualbudget_to_schist_transformer/src/main.rs
index 987cd72..875ed5a 100644
--- a/rust/actualbudget_to_schist_transformer/src/main.rs
+++ b/rust/actualbudget_to_schist_transformer/src/main.rs
@@ -1,5 +1,18 @@
-use anyhow::Result;
+use anyhow::{bail, Result};
 
 fn main() -> Result<()> {
-    actualbudget_to_schist_transformer::run::run()
+    let args: Vec<String> = std::env::args().collect();
+
+    if args.len() < 2 {
+        bail!("too few arguments. usage: actualbudget_to_schist_transformer <in> <out>");
+    } else if args.len() > 2 {
+        bail!("too many arguments. usage: actualbudget_to_schist_transformer <in> <out>");
+    }
+
+    let in_db_url = args.get(0).unwrap();
+    let out_db_url = args.get(1).unwrap();
+
+    actualbudget_to_schist_transformer::run::run(in_db_url, out_db_url)?;
+
+    Ok(())
 }
diff --git a/rust/actualbudget_to_schist_transformer/src/run.rs b/rust/actualbudget_to_schist_transformer/src/run.rs
index 77f0e45..3c88589 100644
--- a/rust/actualbudget_to_schist_transformer/src/run.rs
+++ b/rust/actualbudget_to_schist_transformer/src/run.rs
@@ -1,11 +1,19 @@
-use anyhow::Result;
+use anyhow::{Context, Result};
 use diesel::{Connection, SqliteConnection};
 
 use crate::{actualbudget_state::read_actualbudget_state, schist_state::export_schist_state, transform_state::transform_state};
 
-pub fn run() -> Result<()> {
-    let actualbudget_connection = &mut SqliteConnection::establish("in.sqlite").unwrap();
-    let schist_connection = &mut SqliteConnection::establish("out.sqlite").unwrap();
+pub fn run(in_db_url: &str, out_db_url: &str) -> Result<()> {
+    let actualbudget_connection = &mut SqliteConnection::establish(in_db_url)
+        .with_context(|| format!(
+            "failed to establish connection to input database at {}",
+            in_db_url,
+        ))?;
+    let schist_connection = &mut SqliteConnection::establish(out_db_url)
+        .with_context(|| format!(
+            "failed to establish connection to output database at {}",
+            out_db_url,
+        ))?;
 
     let actualbudget_state = read_actualbudget_state(actualbudget_connection)?;
     let schist_state = transform_state(actualbudget_state)?;