Remove r2d2 dependency

Cargo.lock

@@ -210,15 +210,6 @@ dependencies = [
  "vec_map",
 ]
 
-[[package]]
-name = "cloudabi"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4344512281c643ae7638bbabc3af17a11307803ec8f0fcad9fae512a8bf36467"
-dependencies = [
- "bitflags",
-]
-
 [[package]]
 name = "cpuid-bool"
 version = "0.1.2"
@@ -669,12 +660,6 @@ dependencies = [
  "hashbrown",
 ]
 
-[[package]]
-name = "instant"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b141fdc7836c525d4d594027d318c84161ca17aaf8113ab1f81ab93ae897485"
-
 [[package]]
 name = "iovec"
 version = "0.1.4"
@@ -746,15 +731,6 @@ version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8dd5a6d5999d9907cda8ed67bbd137d3af8085216c2ac62de5be860bd41f304a"
 
-[[package]]
-name = "lock_api"
-version = "0.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28247cc5a5be2f05fbcd76dd0cf2c7d3b5400cb978a28042abcd4fa0b3f8261c"
-dependencies = [
- "scopeguard",
-]
-
 [[package]]
 name = "log"
 version = "0.4.11"
@@ -911,32 +887,6 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 
-[[package]]
-name = "parking_lot"
-version = "0.11.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4893845fa2ca272e647da5d0e46660a314ead9c2fdd9a883aabc32e481a8733"
-dependencies = [
- "instant",
- "lock_api",
- "parking_lot_core",
-]
-
-[[package]]
-name = "parking_lot_core"
-version = "0.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c361aa727dd08437f2f1447be8b59a33b0edd15e0fcee698f935613d9efbca9b"
-dependencies = [
- "cfg-if",
- "cloudabi",
- "instant",
- "libc",
- "redox_syscall",
- "smallvec",
- "winapi 0.3.9",
-]
-
 [[package]]
 name = "percent-encoding"
 version = "2.1.0"
@@ -1006,8 +956,6 @@ dependencies = [
  "lazy_static",
  "libc",
  "log",
- "r2d2",
- "r2d2_sqlite",
  "rand",
  "refinery",
  "regex",
@@ -1083,27 +1031,6 @@ dependencies = [
  "proc-macro2",
 ]
 
-[[package]]
-name = "r2d2"
-version = "0.8.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "545c5bc2b880973c9c10e4067418407a0ccaa3091781d1671d46eb35107cb26f"
-dependencies = [
- "log",
- "parking_lot",
- "scheduled-thread-pool",
-]
-
-[[package]]
-name = "r2d2_sqlite"
-version = "0.16.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed60ebe88b27ac28c0563bc0fbeaecd302ff53e3a01e5ddc2ec9f4e6c707d929"
-dependencies = [
- "r2d2",
- "rusqlite",
-]
-
 [[package]]
 name = "rand"
 version = "0.7.3"
@@ -1314,15 +1241,6 @@ dependencies = [
  "winapi-util",
 ]
 
-[[package]]
-name = "scheduled-thread-pool"
-version = "0.2.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc6f74fd1204073fa02d5d5d68bec8021be4c38690b61264b2fdb48083d0e7d7"
-dependencies = [
- "parking_lot",
-]
-
 [[package]]
 name = "scoped-tls"
 version = "1.0.0"

Cargo.toml

@@ -20,8 +20,6 @@ hex = "0.4.2"
 lazy_static = "1.4.0"
 libc = "0.2.74"
 log = "0.4.11"
-r2d2 = "0.8.9"
-r2d2_sqlite = "0.16.0"
 rand = "0.7.3"
 refinery = { version = "0.3.0", features = ["rusqlite"] }
 regex = "1.3.9"

src/error.rs

@@ -35,16 +35,6 @@ impl From<hex::FromHexError> for Error {
     }
 }
 
-impl From<r2d2::Error> for Error {
-    fn from(err: r2d2::Error) -> Error {
-        let msg = format!("Database r2d2 error {}", err);
-        Error {
-            code: StatusCode::INTERNAL_SERVER_ERROR,
-            msg,
-        }
-    }
-}
-
 impl From<refinery::Error> for Error {
     fn from(err: refinery::Error) -> Error {
         let msg = format!("Database 'refinery' migration error, {}", err);

src/main.rs

-extern crate r2d2;
-extern crate r2d2_sqlite;
 extern crate rusqlite;
 
 mod api_model;