From 8cc4318beb482a42a9fd84646f19624ad1a41863 Mon Sep 17 00:00:00 2001
From: Josh Triplett <josh@joshtriplett.org>
Date: Fri, 12 Aug 2016 03:42:13 -1000
Subject: [PATCH] base, rebase: Support specifying a tag rather than a commit

After parsing the revision, peel it to a commit before getting its id.
---
 src/main.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index c1e15819159e67a04cb36db485302f942b22e4d1..f705f20ab46fcc2eb8b09dba568d659818e150bb 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -463,7 +463,8 @@ fn base(repo: &Repository, m: &ArgMatches) -> Result<()> {
     } else {
         let base = m.value_of("base").unwrap();
         let base_object = try!(repo.revparse_single(base));
-        let base_id = base_object.id();
+        let base_commit = try!(base_object.peel(ObjectType::Commit));
+        let base_id = base_commit.id();
         let s_working_series = try!(try!(internals.working.get("series")).ok_or("Could not find entry \"series\" in working vesion of current series"));
         if base_id != s_working_series.id() && !try!(repo.graph_descendant_of(s_working_series.id(), base_id)) {
             return Err(format!("Cannot set base to {}: not an ancestor of the patch series {}", base, s_working_series.id()).into());
@@ -1343,7 +1344,8 @@ fn rebase(repo: &Repository, m: &ArgMatches) -> Result<()> {
         None => None,
         Some(onto) => {
             let obj = try!(repo.revparse_single(onto));
-            Some(obj.id())
+            let commit = try!(obj.peel(ObjectType::Commit));
+            Some(commit.id())
         },
     };