first working prototype

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I6a6a6964dedc7f122b26b0e2e5040248b7866c93

src/import.rs

@@ -0,0 +1,24 @@
+use crate::{Entry, detect_mime, u64_to_ivec};
+use rmp_serde::encode::to_vec;
+use sled::Db;
+use std::io::{self, BufRead};
+
+pub fn import_tsv(db: &Db, input: impl io::Read) {
+    let reader = io::BufReader::new(input);
+    let mut imported = 0;
+    for line in reader.lines().map_while(Result::ok) {
+        let mut parts = line.splitn(2, '\t');
+        if let (Some(id_str), Some(val)) = (parts.next(), parts.next()) {
+            if let Ok(id) = id_str.parse::<u64>() {
+                let entry = Entry {
+                    contents: val.as_bytes().to_vec(),
+                    mime: detect_mime(val.as_bytes()),
+                };
+                let enc = to_vec(&entry).unwrap();
+                db.insert(u64_to_ivec(id), enc).unwrap();
+                imported += 1;
+            }
+        }
+    }
+    eprintln!("Imported {imported} records from TSV into sled database.");
+}