1 files changed, 38 insertions, 0 deletions
diff --git a/src/actions/index/indextime.rs b/src/actions/index/indextime.rs
new file mode 100644
index 0000000..b078b2f
--- /dev/null
+++ b/src/actions/index/indextime.rs
@@ -0,0 +1,38 @@
+use std::fs;
+use std::io::{Read,Write};
+use chrono::prelude::*;
+
+use defaults::*;
+
+pub fn write_index_time(index_time: &DateTime<Utc>) {
+  let mut timefile = fs::File::create(get_indextimefile()).unwrap();
+  timefile.write_all(format!("{}\n", index_time.timestamp()).as_bytes()).unwrap();
+}
+
+pub fn get_index_time() -> Option<DateTime<Utc>> {
+  let mut timefile = fs::File::open(get_indextimefile()).ok()?;
+  let mut timestamp_str = String::new();
+  timefile.read_to_string(&mut timestamp_str).ok()?;
+  let timestamp = timestamp_str.trim().parse::<i64>().ok()?;
+  Some(Utc.timestamp(timestamp, 0))
+}
+
+#[cfg(test)]
+mod tests {
+  use super::*;
+
+  use testutils;
+  use assert_fs::prelude::*;
+
+  #[test]
+  fn test_write_read() {
+    let testdir = testutils::prepare_testdir("testdir");
+
+    let timestamp = Utc.ymd(1990,01,01).and_hms(1, 1, 0);
+    write_index_time(&timestamp);
+    testdir.child(".khaleesi/index-time").assert("631155660\n");
+
+    let indextime = get_index_time();
+    assert_eq!(Some(timestamp), indextime);
+  }
+}