From 80d97ab89f8b73fc04551c564293c3f8aa303c7a Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Tue, 13 Dec 2022 19:23:41 +0000
Subject: [PATCH] dependencies: Replace cervine with either

either is in Debian; cervine isn't.  All we really need is AsRef,
which Either is.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 Cargo.lock     | 8 +-------
 Cargo.toml     | 2 +-
 src/prelude.rs | 2 +-
 src/queue.rs   | 6 +++---
 4 files changed, 6 insertions(+), 12 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index a63feba..ad6f58c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -100,12 +100,6 @@ version = "1.0.73"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2fff2a6927b3bb87f9595d67196a70493f627687a71d87a0d692242c33f58c11"
 
-[[package]]
-name = "cervine"
-version = "0.0.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9f0db89834ef04fc63d2f136327b42d532b45def0345213d28690a3446c7bdb5"
-
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
@@ -458,8 +452,8 @@ version = "1.0.0"
 dependencies = [
  "backtrace",
  "base64",
- "cervine",
  "educe",
+ "either",
  "env_logger",
  "extend",
  "eyre",
diff --git a/Cargo.toml b/Cargo.toml
index d14329d..ac9e104 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -32,6 +32,7 @@ hippotat-macros = { version = "1.0.0", path = "macros" }
 backtrace = "0.3"
 base64 = "0.13"
 educe = "0.4"
+either = "1"
 env_logger = "0.9"
 futures = "0.3"
 heck = "0.4"
@@ -66,4 +67,3 @@ eyre = "0.6"		# deps not in sid: indenter (see below)
 indenter = "0.3"	# no deps not in sid
 fehler = "1"		# no deps (other than fehler-macros, obvs)
 lazy-regex = "2"	# no deps not in sid
-cervine = "0.0"		# no (non-dev)-deps not in sid
diff --git a/src/prelude.rs b/src/prelude.rs
index 9fb30d5..805442f 100644
--- a/src/prelude.rs
+++ b/src/prelude.rs
@@ -25,8 +25,8 @@ pub use std::sync::Arc;
 pub use std::task::Poll;
 pub use std::time::{SystemTime, UNIX_EPOCH};
 
-pub use cervine::Cow as Cervine;
 pub use educe::Educe;
+pub use either::Either;
 pub use extend::ext;
 pub use fehler::{throw, throws};
 pub use futures::{poll, future, FutureExt, StreamExt, TryStreamExt};
diff --git a/src/queue.rs b/src/queue.rs
index bdcd791..d381a78 100644
--- a/src/queue.rs
+++ b/src/queue.rs
@@ -45,9 +45,9 @@ pub struct FrameQueueBuf {
   queue: QueueBuf<QueuedBytes>,
 }
 
-pub type QueuedBytes = Cervine<'static, Box<[u8]>, [u8]>;
-use Cervine::Owned as QueuedBytesOwned;
-use Cervine::Borrowed as QueuedBytesBorrowed;
+pub type QueuedBytes = Either<Box<[u8]>, &'static [u8]>;
+use Either::Left as QueuedBytesOwned;
+use Either::Right as QueuedBytesBorrowed;
 
 impl<E> Debug for QueueBuf<E> where E: AsRef<[u8]> {
   #[throws(fmt::Error)]
-- 
2.30.2