Remove dependency on arrayvec (#152)

Author: giarc3

.github/workflows/ci.yaml

@@ -13,20 +13,14 @@ jobs:
     runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v2
-      # Work around https://github.com/actions/cache/issues/133#issuecomment-599102035
-      - run: sudo chown -R $(whoami):$(id -ng) ~/.cargo/
-        name: Fix perms on .cargo so we can restore the cache.
       - name: Cache cargo
-        uses: actions/cache@v1
-        with:
-          path: ~/.cargo/
-          key: ${{ github.job }}
+        uses: Swatinem/rust-cache@v1
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
           toolchain: nightly
           override: true
-      - run: rustup component add rustfmt
+          components: rustfmt
       - uses: actions-rs/cargo@v1
         with:
           command: fmt
@@ -57,20 +51,8 @@ jobs:
             target: x86_64-pc-windows-msvc
     steps:
       - uses: actions/checkout@v2
-      # Work around https://github.com/actions/cache/issues/133#issuecomment-599102035
-      - run: sudo chown -R $(whoami):$(id -ng) ~/.cargo/
-        name: Fix perms on .cargo so we can restore the cache.
-        if: "!contains(runner.os, 'windows')"
       - name: Cache cargo
-        uses: actions/cache@v1
-        with:
-          path: ~/.cargo/
-          key: ${{ github.job }}-${{ runner.os }}-${{ matrix.target }}-cargo-${{ hashFiles('**/Cargo.toml') }}
-      - name: Cache cargo build
-        uses: actions/cache@v1
-        with:
-          path: target
-          key: ${{ github.job }}-${{ runner.os }}-${{ matrix.target }}-target-${{ hashFiles('**/Cargo.toml') }}
+        uses: Swatinem/rust-cache@v1
       - uses: actions-rs/toolchain@v1
         with:
           toolchain: stable
@@ -91,23 +73,12 @@ jobs:
         rust:
           - stable
           - beta
-          - 1.41.1 #MSRV
+          - 1.48 #MSRV
       fail-fast: false
     steps:
       - uses: actions/checkout@v2
-      # Work around https://github.com/actions/cache/issues/133#issuecomment-599102035
-      - run: sudo chown -R $(whoami):$(id -ng) ~/.cargo/
-        name: Fix perms on .cargo so we can restore the cache.
       - name: Cache cargo
-        uses: actions/cache@v1
-        with:
-          path: ~/.cargo/
-          key: ${{ github.job }}-${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.toml') }}-${{ matrix.rust }}
-      - name: Cache cargo build
-        uses: actions/cache@v1
-        with:
-          path: target
-          key: ${{ github.job }}-${{ runner.os }}-target-${{ hashFiles('**/Cargo.toml') }}-${{ matrix.rust }}
+        uses: Swatinem/rust-cache@v1
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
@@ -133,19 +104,8 @@ jobs:
       - uses: actions/checkout@v2
         with:
           ref: ${{ matrix.ref }}
-      # Work around https://github.com/actions/cache/issues/133#issuecomment-599102035
-      - run: sudo chown -R $(whoami):$(id -ng) ~/.cargo/
-        name: Fix perms on .cargo so we can restore the cache.
       - name: Cache cargo
-        uses: actions/cache@v1
-        with:
-          path: ~/.cargo/
-          key: ${{ github.job }}-${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.toml') }}
-      - name: Cache cargo build
-        uses: actions/cache@v1
-        with:
-          path: target
-          key: ${{ github.job }}-${{ runner.os }}-target-${{ hashFiles('**/Cargo.toml') }}
+        uses: Swatinem/rust-cache@v1
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
@@ -174,14 +134,8 @@ jobs:
     runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v2
-      # Work around https://github.com/actions/cache/issues/133#issuecomment-599102035
-      - run: sudo chown -R $(whoami):$(id -ng) ~/.cargo/
-        name: Fix perms on .cargo so we can restore the cache.
       - name: Cache cargo
-        uses: actions/cache@v1
-        with:
-          path: ~/.cargo/
-          key: ${{ github.job }}
+        uses: Swatinem/rust-cache@v1
       - name: Retrieve benchmark results
         uses: actions/download-artifact@v1
         with:

CHANGELOG.md

@@ -1,5 +1,15 @@
 # Changelog
 
+## 0.13.0 (Unreleased)
+
+### Public API changes
+
+- [[#152](https://github.com/IronCoreLabs/recrypt-rs/pull/152)] Change MSRV to Rust 1.48.0
+
+### Notable internal changes
+
+- [[#152](https://github.com/IronCoreLabs/recrypt-rs/pull/152)] Remove dependency on `arrayvec`
+
 ## 0.12.0
 
 ### Public API changes

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "recrypt"
-version = "0.12.0"
+version = "0.13.0-pre"
 authors = ["IronCore Labs <info@ironcorelabs.com>"]
 readme = "README.md"
 license = "AGPL-3.0-only"
@@ -25,7 +25,6 @@ rand_chacha = "~0.2.2"
 sha2 = "~0.9"
 num-traits = "~0.2"
 lazy_static = "~1.4"
-arrayvec = "~0.5"
 #Disable all features for ed25519 and enable the proper ones down in the [features] section below
 ed25519-dalek = { version="=1.0.1", default-features = false, features = ["std"] }
 clear_on_drop = "~0.2"

src/internal/bytedecoder.rs

@@ -1,10 +1,9 @@
 use crate::internal::ByteVector;
-use arrayvec;
-use arrayvec::ArrayVec;
 use gridiron::fp_256::Fp256;
 use gridiron::fp_480::Fp480;
 use quick_error::quick_error;
 use std::convert::From;
+use std::convert::TryInto;
 use std::result::Result;
 
 /// Decode a ByteVector into an implementing type.
@@ -23,9 +22,13 @@ where
 impl BytesDecoder for gridiron::fp_256::Monty {
     const ENCODED_SIZE_BYTES: usize = 32;
     fn decode(bytes: ByteVector) -> Result<Self, DecodeErr> {
-        let byte_arr: ArrayVec<[u8; Self::ENCODED_SIZE_BYTES]> = bytes.into_iter().collect();
-        let byte_arr: [u8; Self::ENCODED_SIZE_BYTES] = byte_arr.into_inner()?;
-        Result::Ok(Fp256::from(byte_arr).to_monty())
+        let byte_array: Result<[u8; Self::ENCODED_SIZE_BYTES], ByteVector> = bytes.try_into();
+        byte_array
+            .map(|array| Fp256::from(array).to_monty())
+            .map_err(|b| DecodeErr::BytesNotCorrectLength {
+                required_length: Self::ENCODED_SIZE_BYTES,
+                bad_bytes: b,
+            })
     }
 }
 
@@ -52,26 +55,10 @@ quick_error! {
         BytesNotCorrectLength {
             required_length: usize,
             bad_bytes: ByteVector,
-        } {
         }
         BytesInvalid {
             message: String,
             bad_bytes: ByteVector,
-        }{}
+        }
     }
 }
-
-/// Needed for error handing when ArrayVec.into_inner is called on an instance that is not
-/// at capacity.
-macro_rules! from_arrayvec_n { ($($n: expr), *) => {
-    $(impl From<arrayvec::ArrayVec<[u8; $n]>> for DecodeErr {
-        fn from(x: arrayvec::ArrayVec<[u8; $n]>) -> Self {
-            DecodeErr::BytesNotCorrectLength {
-                required_length: $n,
-                bad_bytes: x.to_vec(),
-            }
-        }
-})+
-}}
-
-from_arrayvec_n! {32, 128, 384}

src/internal/mod.rs

@@ -1139,7 +1139,7 @@ pub(crate) fn take_lock<T>(m: &Mutex<T>) -> MutexGuard<T> {
     m.lock().unwrap_or_else(|e| {
         let error = format!("Error when acquiring lock: {}", e);
         error!("{}", error);
-        panic!(error);
+        panic!("{}", error);
     })
 }