From c0a05bb34c06b5b30c5374efe05fc7557788b2cc Mon Sep 17 00:00:00 2001
From: Benjamin Woodruff <benjamin.woodruff@vercel.com>
Date: Fri, 24 May 2024 00:41:14 -0700
Subject: [PATCH] chore: Remove unused `base16` dependency and dead `hex`
 wrapper function (vercel/turbo#8207)

### Description

Noticed these dependencies/functions were unused.

For the most part, it's better to do these conversions with the built-in
`format!()`.

Parsing base16 could make sense for this as a dependency, but we're not
doing that.

### Testing Instructions

```
cargo check
```

Also grepped through next.js to check that we're not using it there.
---
 crates/turbo-tasks-hash/Cargo.toml    | 2 --
 crates/turbo-tasks-hash/src/base16.rs | 4 ----
 crates/turbo-tasks-hash/src/hex.rs    | 5 -----
 crates/turbo-tasks-hash/src/lib.rs    | 4 +---
 4 files changed, 1 insertion(+), 14 deletions(-)
 delete mode 100644 crates/turbo-tasks-hash/src/base16.rs

diff --git a/crates/turbo-tasks-hash/Cargo.toml b/crates/turbo-tasks-hash/Cargo.toml
index 64e20a1cd8d21..05dcad51392ff 100644
--- a/crates/turbo-tasks-hash/Cargo.toml
+++ b/crates/turbo-tasks-hash/Cargo.toml
@@ -13,8 +13,6 @@ bench = false
 workspace = true
 
 [dependencies]
-base16 = "0.2.1"
-hex = "0.4.3"
 md4 = "0.10.1"
 turbo-tasks-macros = { workspace = true }
 twox-hash = "1.6.3"
diff --git a/crates/turbo-tasks-hash/src/base16.rs b/crates/turbo-tasks-hash/src/base16.rs
deleted file mode 100644
index 9d4b11b4bfcd9..0000000000000
--- a/crates/turbo-tasks-hash/src/base16.rs
+++ /dev/null
@@ -1,4 +0,0 @@
-/// Encodes an array of bytes as a base16 string.
-pub fn encode_base16(input: &[u8]) -> String {
-    base16::encode_lower(input)
-}
diff --git a/crates/turbo-tasks-hash/src/hex.rs b/crates/turbo-tasks-hash/src/hex.rs
index 771412320e054..9fd35fa975f22 100644
--- a/crates/turbo-tasks-hash/src/hex.rs
+++ b/crates/turbo-tasks-hash/src/hex.rs
@@ -2,8 +2,3 @@
 pub fn encode_hex(n: u64) -> String {
     format!("{:01$x}", n, std::mem::size_of::<u64>() * 2)
 }
-
-/// Encodes a byte slice into a hex string.
-pub fn encode_hex_string(bytes: &[u8]) -> String {
-    hex::encode(bytes)
-}
diff --git a/crates/turbo-tasks-hash/src/lib.rs b/crates/turbo-tasks-hash/src/lib.rs
index 628c5c9f4175d..d6ab4c13e44f8 100644
--- a/crates/turbo-tasks-hash/src/lib.rs
+++ b/crates/turbo-tasks-hash/src/lib.rs
@@ -4,16 +4,14 @@
 //! invalidation, and encoding the hash to an hexadecimal string for use in a
 //! file name.
 
-mod base16;
 mod deterministic_hash;
 mod hex;
 mod md4;
 mod xxh3_hash64;
 
 pub use crate::{
-    base16::encode_base16,
     deterministic_hash::{DeterministicHash, DeterministicHasher},
-    hex::{encode_hex, encode_hex_string},
+    hex::encode_hex,
     md4::hash_md4,
     xxh3_hash64::{hash_xxh3_hash64, Xxh3Hash64Hasher},
 };