From 199e066d8c92287f0868fceec9f719e1c6005df2 Mon Sep 17 00:00:00 2001
From: Dirk Van Haerenborgh <vhdirk@gmail.com>
Date: Thu, 22 Mar 2018 07:31:33 +0100
Subject: get notmuch db revision

---
 src/database.rs | 18 +++++++++++++++---
 src/ffi.rs      |  2 +-
 src/lib.rs      |  2 +-
 3 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/src/database.rs b/src/database.rs
index 8f64fdd..a809e3d 100644
--- a/src/database.rs
+++ b/src/database.rs
@@ -19,11 +19,14 @@ use directory::Directory;
 use ffi;
 
 // Re-exported under database module for pretty namespacin'.
-pub use ffi::DatabaseOpenMode;
+pub use ffi::DatabaseMode;
 
 #[derive(Copy, Clone, Debug)]
 pub struct Version(libc::c_uint);
 
+#[derive(Copy, Clone, Debug)]
+pub struct Revision(libc::c_ulong);
+
 #[derive(Debug)]
 pub struct Database(*mut ffi::notmuch_database_t);
 
@@ -39,13 +42,15 @@ impl Database {
         Ok(Database(db))
     }
 
-    pub fn open<P: AsRef<path::Path>>(path: &P, mode: DatabaseOpenMode) -> Result<Database> {
+    pub fn open<P: AsRef<path::Path>>(path: &P, mode: DatabaseMode) -> Result<Database> {
         let path_str = CString::new(path.as_ref().to_str().unwrap()).unwrap();
 
         let mut db = ptr::null_mut();
         try!(unsafe {
             ffi::notmuch_database_open(
-                path_str.as_ptr(), mode.into(), &mut db,
+                path_str.as_ptr(),
+                mode.into(),
+                &mut db,
             )
         }.as_result());
 
@@ -117,6 +122,13 @@ impl Database {
         })
     }
 
+    pub fn revision(&self) -> Revision {
+        let uuid = ptr::null_mut();
+        Revision(unsafe {
+            ffi::notmuch_database_get_revision(self.0, uuid)
+        })
+    }
+
     pub fn needs_upgrade(&self) -> bool {
         unsafe {
             ffi::notmuch_database_needs_upgrade(self.0) == 1
diff --git a/src/ffi.rs b/src/ffi.rs
index f3ddb41..b5dcca3 100644
--- a/src/ffi.rs
+++ b/src/ffi.rs
@@ -85,7 +85,7 @@ impl error::Error for Status {
 notmuch_enum! {
     #[repr(C)]
     #[derive(Debug, Eq, PartialEq, Clone, Copy)]
-    pub enum notmuch_database_mode_t => DatabaseOpenMode {
+    pub enum notmuch_database_mode_t => DatabaseMode {
         NOTMUCH_DATABASE_MODE_READ_ONLY => ReadOnly,
         NOTMUCH_DATABASE_MODE_READ_WRITE => ReadWrite
     }
diff --git a/src/lib.rs b/src/lib.rs
index 1348c7e..7ee28ac 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -11,4 +11,4 @@ pub mod database;
 pub mod directory;
 
 pub use database::Database;
-pub use ffi::DatabaseOpenMode;
+pub use ffi::DatabaseMode;
-- 
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