Add some imports that the configuration library needs

Cargo.lock

@@ -19,9 +19,9 @@ checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
 [[package]]
 name = "aho-corasick"
-version = "1.0.2"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43f6cb1bf222025340178f382c426f13757b2960e89779dfcb319c32542a5a41"
+checksum = "6748e8def348ed4d14996fa801f4122cd763fff530258cdc03f64b25f89d3a5a"
 dependencies = [
  "memchr",
 ]
@@ -43,9 +43,9 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.72"
+version = "1.0.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b13c32d80ecc7ab747b80c3784bce54ee8a7a0cc4fbda9bf4cda2cf6fe90854"
+checksum = "a4668cab20f66d8d020e1fbc0ebe47217433c1b6c8f2040faf858554e394ace6"
 
 [[package]]
 name = "autocfg"
@@ -103,9 +103,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bitflags"
-version = "2.3.3"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "630be753d4e58660abd17930c71b647fe46c27ea6b63cc59e1e3851406972e42"
+checksum = "b4682ae6287fcf752ecaabbfcc7b6f9b72aa33933dc23a554d853aea8eea8635"
 
 [[package]]
 name = "bumpalo"
@@ -185,7 +185,7 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 name = "changeset"
 version = "0.1.0"
 dependencies = [
- "uuid",
+ "uuid 1.4.1",
 ]
 
 [[package]]
@@ -233,6 +233,34 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3d7b894f5411737b7867f4827955924d7c254fc9f4d91a6aad6b097804b1018b"
 
+[[package]]
+name = "config"
+version = "0.1.0"
+dependencies = [
+ "config-derive",
+ "cool_asserts",
+ "serde",
+ "serde_json",
+ "thiserror",
+]
+
+[[package]]
+name = "config-derive"
+version = "0.1.0"
+dependencies = [
+ "quote",
+ "syn 1.0.109",
+]
+
+[[package]]
+name = "cool_asserts"
+version = "2.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee9f254e53f61e2688d3677fa2cbe4e9b950afd56f48819c98817417cf6b28ec"
+dependencies = [
+ "indent_write",
+]
+
 [[package]]
 name = "coordinates"
 version = "0.1.0"
@@ -373,7 +401,7 @@ checksum = "487585f4d0c6655fe74905e2504d8ad6908e4db67f744eb140876906c2f3175d"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.28",
+ "syn 2.0.29",
 ]
 
 [[package]]
@@ -394,7 +422,7 @@ dependencies = [
  "serde_json",
  "tempfile",
  "thiserror",
- "uuid",
+ "uuid 0.8.2",
 ]
 
 [[package]]
@@ -476,9 +504,9 @@ dependencies = [
 
 [[package]]
 name = "flate2"
-version = "1.0.26"
+version = "1.0.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b9429470923de8e8cbd4d2dc513535400b4b3fef0319fb5c4e1f520a7bef743"
+checksum = "c6c98ee8095e9d1dcbf2fcc6d95acccb90d1c81db1e44725c6a984b1dbdfb010"
 dependencies = [
  "crc32fast",
  "miniz_oxide",
@@ -644,7 +672,7 @@ checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.28",
+ "syn 2.0.29",
 ]
 
 [[package]]
@@ -900,6 +928,15 @@ dependencies = [
  "system-deps",
 ]
 
+[[package]]
+name = "grid"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0634107a3a005070dd73e27e74ecb691a94e9e5ba7829f434db7fbf73a6b5c47"
+dependencies = [
+ "no-std-compat",
+]
+
 [[package]]
 name = "gsk4"
 version = "0.6.3"
@@ -1083,9 +1120,9 @@ checksum = "d897f394bad6a705d5f4104762e116a75639e470d80901eed05a860a95cb1904"
 
 [[package]]
 name = "httpdate"
-version = "1.0.2"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4a1e36c821dbe04574f602848a19f742f4fb3c98d40449f11bcad18d6b17421"
+checksum = "df3b46402a9d5adb4c86a0cf463f42e19994e3ee891101b1841f30a545cb49a9"
 
 [[package]]
 name = "hyper"
@@ -1104,7 +1141,7 @@ dependencies = [
  "httpdate",
  "itoa",
  "pin-project-lite",
- "socket2",
+ "socket2 0.4.9",
  "tokio",
  "tower-service",
  "tracing",
@@ -1168,9 +1205,9 @@ dependencies = [
 
 [[package]]
 name = "image"
-version = "0.24.6"
+version = "0.24.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "527909aa81e20ac3a44803521443a765550f09b5130c2c2fa1ea59c2f8f50a3a"
+checksum = "6f3dfdbdd72063086ff443e297b61695500514b1e41095b6fb9a5ab48a70a711"
 dependencies = [
  "bytemuck",
  "byteorder",
@@ -1185,6 +1222,12 @@ dependencies = [
  "tiff",
 ]
 
+[[package]]
+name = "indent_write"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0cfe9645a18782869361d9c8732246be7b410ad4e919d3609ebabdac00ba12c3"
+
 [[package]]
 name = "indexmap"
 version = "1.9.3"
@@ -1254,6 +1297,22 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "kifu-core"
+version = "0.1.0"
+dependencies = [
+ "chrono",
+ "config",
+ "config-derive",
+ "cool_asserts",
+ "grid",
+ "serde",
+ "serde_json",
+ "sgf",
+ "thiserror",
+ "typeshare",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -1329,9 +1388,9 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.19"
+version = "0.4.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b06a4cde4c0f271a446782e3eff8de789548ce57dbc8eca9292c27f4a42004b4"
+checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
 
 [[package]]
 name = "memchr"
@@ -1419,6 +1478,12 @@ dependencies = [
  "tempfile",
 ]
 
+[[package]]
+name = "no-std-compat"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b93853da6d84c2e3c7d730d6473e8817692dd89be387eb01b94d7f108ecb5b8c"
+
 [[package]]
 name = "nom"
 version = "7.1.3"
@@ -1508,7 +1573,7 @@ checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.28",
+ "syn 2.0.29",
 ]
 
 [[package]]
@@ -1648,14 +1713,14 @@ checksum = "4359fd9c9171ec6e8c62926d6faaf553a8dc3f64e1507e76da7911b4f6a04405"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.28",
+ "syn 2.0.29",
 ]
 
 [[package]]
 name = "pin-project-lite"
-version = "0.2.11"
+version = "0.2.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2c516611246607d0c04186886dbb3a754368ef82c79e9827a802c6d836dd111c"
+checksum = "12cc1b0bf1727a77a54b6654e7b5f1af8604923edc8b81885f8ec92f9e3f0a05"
 
 [[package]]
 name = "pin-utils"
@@ -1768,9 +1833,9 @@ checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
 
 [[package]]
 name = "quote"
-version = "1.0.32"
+version = "1.0.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "50f3b39ccfb720540debaa0164757101c08ecb8d326b15358ce76a62c7e85965"
+checksum = "5267fca4496028628a95160fc423a33e8b2e6af8a5302579e322e4b520293cae"
 dependencies = [
  "proc-macro2",
 ]
@@ -1940,11 +2005,11 @@ dependencies = [
 
 [[package]]
 name = "rustix"
-version = "0.38.7"
+version = "0.38.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "172891ebdceb05aa0005f533a6cbfca599ddd7d966f6f5d4d9b2e70478e70399"
+checksum = "19ed4fa021d81c8392ce04db050a3da9a60299050b7ae1cf482d862b54a7218f"
 dependencies = [
- "bitflags 2.3.3",
+ "bitflags 2.4.0",
  "errno",
  "libc",
  "linux-raw-sys",
@@ -2043,14 +2108,14 @@ checksum = "aafe972d60b0b9bee71a91b92fee2d4fb3c9d7e8f6b179aa99f27203d99a4816"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.28",
+ "syn 2.0.29",
 ]
 
 [[package]]
 name = "serde_json"
-version = "1.0.104"
+version = "1.0.105"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "076066c5f1078eac5b722a31827a8832fe108bed65dfa75e233c89f8206e976c"
+checksum = "693151e1ac27563d6dbcec9dee9fbd5da8539b20fa14ad3752b2e6d363ace360"
 dependencies = [
  "itoa",
  "ryu",
@@ -2135,6 +2200,16 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "socket2"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2538b18701741680e0322a2302176d3253a35388e2e62f172f64f4f16605f877"
+dependencies = [
+ "libc",
+ "windows-sys",
+]
+
 [[package]]
 name = "spin"
 version = "0.9.8"
@@ -2157,9 +2232,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.28"
+version = "2.0.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04361975b3f5e348b2189d8dc55bc942f278b2d482a6a0365de5bdd62d351567"
+checksum = "c324c494eba9d92503e6f1ef2e6df781e78f6a7705a0202d9801b198807d518a"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2200,29 +2275,29 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.44"
+version = "1.0.47"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "611040a08a0439f8248d1990b111c95baa9c704c805fa1f62104b39655fd7f90"
+checksum = "97a802ec30afc17eee47b2855fc72e0c4cd62be9b4efe6591edde0ec5bd68d8f"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.44"
+version = "1.0.47"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "090198534930841fab3a5d1bb637cde49e339654e606195f8d9c76eeb081dc96"
+checksum = "6bb623b56e39ab7dcd4b1b98bb6c8f8d907ed255b18de254088016b27a8ee19b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.28",
+ "syn 2.0.29",
 ]
 
 [[package]]
 name = "tiff"
-version = "0.8.1"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7449334f9ff2baf290d55d73983a7d6fa15e01198faef72af07e2a8db851e471"
+checksum = "6d172b0f4d3fba17ba89811858b9d3d97f928aece846475bbda076ca46736211"
 dependencies = [
  "flate2",
  "jpeg-decoder",
@@ -2266,11 +2341,10 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tokio"
-version = "1.29.1"
+version = "1.32.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "532826ff75199d5833b9d2c5fe410f29235e25704ee5f0ef599fb51c21f4a4da"
+checksum = "17ed6077ed6cd6c74735e21f37eb16dc3935f96878b1fe961074089cc80893f9"
 dependencies = [
- "autocfg",
  "backtrace",
  "bytes",
  "libc",
@@ -2279,7 +2353,7 @@ dependencies = [
  "parking_lot",
  "pin-project-lite",
  "signal-hook-registry",
- "socket2",
+ "socket2 0.5.3",
  "tokio-macros",
  "windows-sys",
 ]
@@ -2292,7 +2366,7 @@ checksum = "630bdcf245f78637c13ec01ffae6187cca34625e8c63150d424b59e55af2675e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.28",
+ "syn 2.0.29",
 ]
 
 [[package]]
@@ -2488,6 +2562,15 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "uuid"
+version = "1.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "79daa5ed5740825c40b389c5e50312b9c86df53fccd33f281df655642b43869d"
+dependencies = [
+ "getrandom",
+]
+
 [[package]]
 name = "vcpkg"
 version = "0.2.15"
@@ -2557,7 +2640,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.28",
+ "syn 2.0.29",
  "wasm-bindgen-shared",
 ]
 
@@ -2591,7 +2674,7 @@ checksum = "54681b18a46765f095758388f2d0cf16eb8d4169b639ab575a8f5693af210c7b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.28",
+ "syn 2.0.29",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -2660,9 +2743,9 @@ dependencies = [
 
 [[package]]
 name = "windows-targets"
-version = "0.48.1"
+version = "0.48.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05d4b17490f70499f20b9e791dcf6a299785ce8af4d709018206dc5b4953e95f"
+checksum = "27f51fb4c64f8b770a823c043c7fad036323e1c48f55287b7bbb7987b2fcdf3b"
 dependencies = [
  "windows_aarch64_gnullvm",
  "windows_aarch64_msvc",
@@ -2675,51 +2758,51 @@ dependencies = [
 
 [[package]]
 name = "windows_aarch64_gnullvm"
-version = "0.48.0"
+version = "0.48.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91ae572e1b79dba883e0d315474df7305d12f569b400fcf90581b06062f7e1bc"
+checksum = "fde1bb55ae4ce76a597a8566d82c57432bc69c039449d61572a7a353da28f68c"
 
 [[package]]
 name = "windows_aarch64_msvc"
-version = "0.48.0"
+version = "0.48.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2ef27e0d7bdfcfc7b868b317c1d32c641a6fe4629c171b8928c7b08d98d7cf3"
+checksum = "1513e8d48365a78adad7322fd6b5e4c4e99d92a69db8df2d435b25b1f1f286d4"
 
 [[package]]
 name = "windows_i686_gnu"
-version = "0.48.0"
+version = "0.48.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "622a1962a7db830d6fd0a69683c80a18fda201879f0f447f065a3b7467daa241"
+checksum = "60587c0265d2b842298f5858e1a5d79d146f9ee0c37be5782e92a6eb5e1d7a83"
 
 [[package]]
 name = "windows_i686_msvc"
-version = "0.48.0"
+version = "0.48.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4542c6e364ce21bf45d69fdd2a8e455fa38d316158cfd43b3ac1c5b1b19f8e00"
+checksum = "224fe0e0ffff5d2ea6a29f82026c8f43870038a0ffc247aa95a52b47df381ac4"
 
 [[package]]
 name = "windows_x86_64_gnu"
-version = "0.48.0"
+version = "0.48.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca2b8a661f7628cbd23440e50b05d705db3686f894fc9580820623656af974b1"
+checksum = "62fc52a0f50a088de499712cbc012df7ebd94e2d6eb948435449d76a6287e7ad"
 
 [[package]]
 name = "windows_x86_64_gnullvm"
-version = "0.48.0"
+version = "0.48.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7896dbc1f41e08872e9d5e8f8baa8fdd2677f29468c4e156210174edc7f7b953"
+checksum = "2093925509d91ea3d69bcd20238f4c2ecdb1a29d3c281d026a09705d0dd35f3d"
 
 [[package]]
 name = "windows_x86_64_msvc"
-version = "0.48.0"
+version = "0.48.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
+checksum = "b6ade45bc8bf02ae2aa34a9d54ba660a1a58204da34ba793c00d83ca3730b5f1"
 
 [[package]]
 name = "winnow"
-version = "0.5.4"
+version = "0.5.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "acaaa1190073b2b101e15083c38ee8ec891b5e05cbee516521e94ec008f61e64"
+checksum = "d09770118a7eb1ccaf4a594a221334119a44a814fcb0d31c5b85e83e97227a97"
 dependencies = [
  "memchr",
 ]

Cargo.toml

@@ -1,16 +1,19 @@
 [workspace]
 members = [
+    "changeset",
+    "config",
+    "config-derive",
+    "coordinates",
     "cyberpunk-splash",
     "dashboard",
+    "emseries",
+    "flow",
     "fluent-ergonomics",
+    "kifu/core",
     "geo-types",
+    "hex-grid",
     "ifc",
     "memorycache",
     "screenplay",
-    "emseries",
-    "coordinates",
-    "flow",
     "sgf",
-    "changeset",
-    "hex-grid",
 ]

build.sh

@@ -4,19 +4,21 @@ set -euo pipefail
 set -x
 
 RUST_ALL_TARGETS=(
+    "changeset"
+    "config"
+    "config-derive"
+    "coordinates"
+    "cyberpunk-splash"
     "dashboard"
+    "emseries"
+    "flow"
+    "fluent-ergonomics"
+    "geo-types"
+    "hex-grid"
     "ifc"
     "memorycache"
-    "geo-types"
-    "fluent-ergonomics"
-    "cyberpunk-splash"
     "screenplay"
-    "emseries"
-    "coordinates"
-    "flow"
     "sgf"
-    "changeset"
-    "hex-grid"
 )
 
 build_rust_targets() {

config-derive/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "config-derive"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[lib]
+proc-macro = true
+
+[dependencies]
+quote           = { version = "1" }
+syn             = { version = "1", features = [ "extra-traits" ] }
+

config-derive/src/lib.rs

@@ -0,0 +1,23 @@
+extern crate proc_macro;
+
+use proc_macro::TokenStream;
+use quote::quote;
+
+use syn::{parse_macro_input, DeriveInput};
+
+#[proc_macro_derive(ConfigOption)]
+pub fn derive(input: TokenStream) -> TokenStream {
+    let DeriveInput { ident, .. } = parse_macro_input!(input as DeriveInput);
+
+    let result = quote! {
+        impl From<&Config> for Option<#ident> {
+            fn from(config: &Config) -> Self {
+                match config.values.get(&ConfigName::#ident) {
+                    Some(ConfigOption::#ident(val)) => Some(val.clone()),
+                    _ => None,
+                }
+            }
+        }
+    };
+    result.into()
+}

config/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "config"
+version = "0.1.0"
+edition = "2021"
+
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+config-derive   = { path = "../config-derive" }
+serde_json      = { version = "1" }
+serde           = { version = "1", features = [ "derive" ] }
+thiserror       = { version = "1" }
+
+[dev-dependencies]
+cool_asserts    = { version = "2" }

config/src/lib.rs

@@ -0,0 +1,159 @@
+/*
+use std::{
+    collections::HashMap,
+    fs::File,
+    hash::Hash,
+    io::{ErrorKind, Read},
+    path::PathBuf,
+};
+*/
+
+pub use config_derive::ConfigOption;
+use thiserror::Error;
+
+#[derive(Debug, Error)]
+pub enum ConfigReadError {
+    #[error("Cannot read the configuration file: {0}")]
+    CannotRead(std::io::Error),
+    #[error("Cannot open the configuration file for reading: {0}")]
+    CannotOpen(std::io::Error),
+    #[error("Invalid json data found in the configurationfile: {0}")]
+    InvalidJSON(serde_json::Error),
+}
+
+#[macro_export]
+macro_rules! define_config {
+    ($($name:ident($struct:ident),)+) => (
+        #[derive(Clone, Debug, Hash, PartialEq, Eq, serde::Serialize, serde::Deserialize)]
+        pub enum ConfigName {
+            $($name),+
+        }
+
+        #[derive(Clone, Debug, serde::Serialize, serde::Deserialize)]
+        pub enum ConfigOption {
+            $($name($struct)),+
+        }
+
+        #[derive(Clone, Debug)]
+        pub struct Config {
+            values: std::collections::HashMap<ConfigName, ConfigOption>,
+        }
+
+        impl Config {
+            pub fn new() -> Self {
+                Self {
+                    values: std::collections::HashMap::new(),
+                }
+            }
+
+            pub fn from_path(config_path: std::path::PathBuf) -> Result<Self, $crate::ConfigReadError> {
+                let mut settings = config_path.clone();
+                settings.push("config");
+
+                match std::fs::File::open(settings) {
+                    Ok(mut file) => {
+                        let mut buf = String::new();
+                        std::io::Read::read_to_string(&mut file, &mut buf)
+                            .map_err(|err| $crate::ConfigReadError::CannotRead(err))?;
+                        let values = serde_json::from_str(buf.as_ref())
+                            .map_err(|err| $crate::ConfigReadError::InvalidJSON(err))?;
+                        Ok(Self {
+                            values,
+                        })
+                    }
+                    Err(io_err) => {
+                        match io_err.kind() {
+                            std::io::ErrorKind::NotFound => {
+                                /* create the path and an empty file */
+                                Ok(Self {
+                                    values: std::collections::HashMap::new(),
+                                })
+                            }
+                            _ => Err($crate::ConfigReadError::CannotOpen(io_err)),
+                        }
+                    }
+                }
+            }
+
+            pub fn set(&mut self, val: ConfigOption) {
+                let _ = match val {
+                    $(ConfigOption::$struct(_) => self.values.insert(ConfigName::$name, val)),+
+                };
+            }
+
+            pub fn get<'a, T>(&'a self) -> Option<T>
+            where
+                Option<T>: From<&'a Self>,
+            {
+                self.into()
+            }
+        }
+    )
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use cool_asserts::assert_matches;
+    use serde::{Deserialize, Serialize};
+    use std::collections::HashMap;
+    use std::path::PathBuf;
+
+    define_config! {
+        DatabasePath(DatabasePath),
+        Me(Me),
+    }
+
+    #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, ConfigOption)]
+    pub struct DatabasePath(PathBuf);
+
+    #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+    enum Rank {
+        Kyu(i8),
+        Dan(i8),
+    }
+
+    #[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize, ConfigOption)]
+    pub struct Me {
+        name: String,
+        rank: Option<Rank>,
+    }
+
+    #[test]
+    fn it_can_set_and_get_options() {
+        let mut config: Config = Config::new();
+        config.set(ConfigOption::DatabasePath(DatabasePath(PathBuf::from(
+            "./fixtures/five_games",
+        ))));
+
+        assert_eq!(
+            Some(DatabasePath(PathBuf::from("./fixtures/five_games"))),
+            config.get()
+        );
+    }
+
+    #[test]
+    fn it_can_serialize_and_deserialize() {
+        let mut config = Config::new();
+        config.set(ConfigOption::DatabasePath(DatabasePath(PathBuf::from(
+            "fixtures/five_games",
+        ))));
+        config.set(ConfigOption::Me(Me {
+            name: "Savanni".to_owned(),
+            rank: Some(Rank::Kyu(10)),
+        }));
+        let s = serde_json::to_string(&config.values).unwrap();
+        println!("{}", s);
+        let values: HashMap<ConfigName, ConfigOption> = serde_json::from_str(s.as_ref()).unwrap();
+        println!("options: {:?}", values);
+
+        assert_matches!(values.get(&ConfigName::DatabasePath),
+                        Some(ConfigOption::DatabasePath(ref db_path)) =>
+                        assert_eq!(Some(db_path.clone()), config.get())
+        );
+
+        assert_matches!(values.get(&ConfigName::Me), Some(ConfigOption::Me(val)) =>
+            assert_eq!(Some(val.clone()), config.get())
+        );
+    }
+}

kifu/core/Cargo.toml

@@ -7,6 +7,8 @@ edition = "2021"
 
 [dependencies]
 chrono          = { version = "0.4" }
+config          = { path = "../../config" }
+config-derive   = { path = "../../config-derive" }
 sgf             = { path = "../../sgf" }
 grid            = { version = "0.9" }
 serde_json      = { version = "1" }

kifu/core/src/api.rs

@@ -1,7 +1,6 @@
 use crate::{
-    types::{AppState, GameState, Player, Rank},
+    types::{AppState, Config, DatabasePath, GameState, Player, Rank},
     ui::{home, playing_field, HomeView, PlayingFieldView},
-    Config, DatabasePath,
 };
 use serde::{Deserialize, Serialize};
 use std::sync::{Arc, RwLock};
@@ -73,7 +72,7 @@ impl CoreApp {
         println!("config_path: {:?}", config_path);
         let config = Config::from_path(config_path).expect("configuration to open");
 
-        let db_path: DatabasePath = config.get();
+        let db_path: DatabasePath = config.get().unwrap();
         let state = Arc::new(RwLock::new(AppState::new(db_path)));
 
         println!("config: {:?}", config);

kifu/core/src/config.rs

@@ -1,198 +0,0 @@
-use crate::types::Player;
-use serde::{Deserialize, Serialize};
-use std::{
-    collections::HashMap,
-    fs::File,
-    io::{ErrorKind, Read},
-    path::PathBuf,
-};
-use thiserror::Error;
-
-/*
-pub trait ConfigOption {
-    type Value;
-}
-
-pub struct DatabasePath(PathBuf);
-
-impl ConfigOption for DatabasePath {
-    type Value = PathBuf;
-}
-
-impl ConfigOption for Player {
-    type Value = Player;
-}
-
-pub trait Config {
-    // fn set_option(option: ConfigOption);
-    fn get_option<N, C: ConfigOption>(name: Name) -> C<Name = Name>
-}
-*/
-
-#[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
-enum OptionNames {
-    DatabasePath,
-    Me,
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-#[serde(untagged)]
-pub enum ConfigOption {
-    DatabasePath(DatabasePath),
-    Me(Me),
-}
-
-#[derive(Debug, Error)]
-pub enum ConfigReadError {
-    #[error("Cannot read the configuration file: {0}")]
-    CannotRead(std::io::Error),
-    #[error("Cannot open the configuration file for reading: {0}")]
-    CannotOpen(std::io::Error),
-    #[error("Invalid json data found in the configurationfile: {0}")]
-    InvalidJSON(serde_json::Error),
-}
-
-#[derive(Clone, Debug)]
-pub struct Config {
-    config_path: PathBuf,
-    values: HashMap<OptionNames, ConfigOption>,
-}
-
-impl Config {
-    pub fn new(config_path: PathBuf) -> Self {
-        Self {
-            config_path,
-            values: HashMap::new(),
-        }
-    }
-
-    pub fn from_path(config_path: PathBuf) -> Result<Self, ConfigReadError> {
-        let mut settings = config_path.clone();
-        settings.push("config");
-
-        match File::open(settings) {
-            Ok(mut file) => {
-                let mut buf = String::new();
-                file.read_to_string(&mut buf)
-                    .map_err(|err| ConfigReadError::CannotRead(err))?;
-                let values = serde_json::from_str(buf.as_ref())
-                    .map_err(|err| ConfigReadError::InvalidJSON(err))?;
-                Ok(Self {
-                    config_path,
-                    values,
-                })
-            }
-            Err(io_err) => {
-                match io_err.kind() {
-                    ErrorKind::NotFound => {
-                        /* create the path and an empty file */
-                        Ok(Self {
-                            config_path,
-                            values: HashMap::new(),
-                        })
-                    }
-                    _ => Err(ConfigReadError::CannotOpen(io_err)),
-                }
-            }
-        }
-    }
-
-    pub fn set(&mut self, val: ConfigOption) {
-        let _ = match val {
-            ConfigOption::DatabasePath(_) => self.values.insert(OptionNames::DatabasePath, val),
-            ConfigOption::Me(_) => self.values.insert(OptionNames::Me, val),
-        };
-    }
-
-    pub fn get<'a, T>(&'a self) -> T
-    where
-        T: From<&'a Self>,
-    {
-        self.into()
-    }
-}
-
-#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
-pub struct DatabasePath(PathBuf);
-
-impl std::ops::Deref for DatabasePath {
-    type Target = PathBuf;
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
-
-impl From<&Config> for DatabasePath {
-    fn from(config: &Config) -> Self {
-        match config.values.get(&OptionNames::DatabasePath) {
-            Some(ConfigOption::DatabasePath(path)) => path.clone(),
-            _ => DatabasePath(config.config_path.clone()),
-        }
-    }
-}
-
-#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
-pub struct Me(Player);
-
-impl From<&Config> for Option<Me> {
-    fn from(config: &Config) -> Self {
-        config
-            .values
-            .get(&OptionNames::Me)
-            .and_then(|val| match val {
-                ConfigOption::Me(me) => Some(me.clone()),
-                _ => None,
-            })
-    }
-}
-
-impl std::ops::Deref for Me {
-    type Target = Player;
-    fn deref(&self) -> &Self::Target {
-        &self.0
-    }
-}
-
-#[cfg(test)]
-mod test {
-    use super::*;
-    use crate::types::Rank;
-    use cool_asserts::assert_matches;
-
-    #[test]
-    fn it_can_set_and_get_options() {
-        let mut config = Config::new(PathBuf::from("."));
-        config.set(ConfigOption::DatabasePath(DatabasePath(PathBuf::from(
-            "fixtures/five_games",
-        ))));
-        config.set(ConfigOption::Me(Me(Player {
-            name: "Savanni".to_owned(),
-            rank: Some(Rank::Kyu(10)),
-        })));
-    }
-
-    #[test]
-    fn it_can_serialize_and_deserialize() {
-        let mut config = Config::new(PathBuf::from("."));
-        config.set(ConfigOption::DatabasePath(DatabasePath(PathBuf::from(
-            "fixtures/five_games",
-        ))));
-        config.set(ConfigOption::Me(Me(Player {
-            name: "Savanni".to_owned(),
-            rank: Some(Rank::Kyu(10)),
-        })));
-        let s = serde_json::to_string(&config.values).unwrap();
-        println!("{}", s);
-        let values: HashMap<OptionNames, ConfigOption> = serde_json::from_str(s.as_ref()).unwrap();
-        println!("options: {:?}", values);
-
-        assert_matches!(values.get(&OptionNames::DatabasePath),
-                        Some(ConfigOption::DatabasePath(db_path)) =>
-                        assert_eq!(*db_path, config.get())
-        );
-
-        assert_matches!(values.get(&OptionNames::Me), Some(ConfigOption::Me(val)) =>
-            assert_eq!(Some(val.clone()), config.get())
-        );
-    }
-}

kifu/core/src/lib.rs

@@ -1,3 +1,6 @@
+#[macro_use]
+extern crate config_derive;
+
 mod api;
 pub use api::{
     CoreApp, CoreRequest, CoreResponse, CreateGameRequest, HotseatPlayerRequest, PlayerInfoRequest,
@@ -6,8 +9,10 @@ pub use api::{
 mod board;
 pub use board::*;
 
+/*
 mod config;
 pub use config::*;
+*/
 
 mod database;
 

kifu/core/src/types.rs

@@ -1,14 +1,40 @@
 use crate::{
     api::PlayStoneRequest,
     board::{Board, Coordinate},
-    config::DatabasePath,
     database::Database,
 };
+use config::define_config;
+use config_derive::ConfigOption;
 use serde::{Deserialize, Serialize};
 use std::{path::PathBuf, time::Duration};
 use thiserror::Error;
 use typeshare::typeshare;
 
+define_config! {
+    DatabasePath(DatabasePath),
+    Me(Me),
+}
+
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize, ConfigOption)]
+pub struct DatabasePath(PathBuf);
+
+impl std::ops::Deref for DatabasePath {
+    type Target = PathBuf;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize, ConfigOption)]
+pub struct Me(Player);
+
+impl std::ops::Deref for Me {
+    type Target = Player;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
 #[derive(Debug, PartialEq, Error)]
 pub enum BoardError {
     #[error("Position is invalid")]

rust-toolchain

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "1.68.2"
+channel = "1.71.1"
 targets = [ "wasm32-unknown-unknown" ]