Split in multiple crates, builders

Signed-off-by: Luca Fulchir <luca.fulchir@runesauth.com>

Cargo.lock

@@ -6,9 +6,65 @@ version = 3
 name = "bok"
 version = "0.1.0"
 dependencies = [
- "bokmacro",
+ "bok-macro",
+ "paste",
 ]
 
 [[package]]
-name = "bokmacro"
+name = "bok-macro"
 version = "0.1.0"
+dependencies = [
+ "bok",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "bok-utils"
+version = "0.1.0"
+dependencies = [
+ "bok",
+ "bok-macro",
+]
+
+[[package]]
+name = "paste"
+version = "1.0.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "de3145af08024dea9fa9914f381a17b8fc6034dfb00f3a84013f7ff43f29ed4c"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.78"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2422ad645d89c99f8f3e6b88a9fdeca7fabeac836b1002371c4367c8f984aae"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "291ec9ab5efd934aaf503a6466c5d5251535d108ee747472c3977cc5acc868ef"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "syn"
+version = "2.0.50"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "74f1bdc9872430ce9b75da68329d1c1746faf50ffac5f19e02b71e37ff881ffb"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"

Cargo.toml

@@ -3,5 +3,6 @@
 resolver = "2"
 members = [
     "bok",
-    "bokmacro",
+    "bok-macro",
+    "bok-utils",
 ]

bok-macro/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+name = "bok-macro"
+version = "0.1.0"
+edition = "2021"
+authors = ["Luca Fulchir <luca.fulchir@runesauth.com>"]
+homepage   = "https://git.runesauth.com/RunesAuth/bok"
+repository = "https://git.runesauth.com/RunesAuth/bok"
+license = "Apache-2.0 WITH LLVM-exception"
+keywords = [ "bok" ]
+categories = [ "config" ]
+
+[lib]
+proc-macro = true
+
+[dependencies]
+syn = { version = "2.0" }
+quote = { version = "1.0" }
+bok = { path = "../bok" }
+proc-macro2 = "1.0"

bok-macro/src/lib.rs

@@ -0,0 +1,212 @@
+/*
+ * Copyright 2024 Luca Fulchir <luca.fulchir@runesauth.com>
+ *
+ * Licensed under the Apache License, Version 2.0 with LLVM exception (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License and of the exception at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *     https://spdx.org/licenses/LLVM-exception.html
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+use ::proc_macro::TokenStream;
+use ::quote::quote;
+use ::syn::{parse::Parser, parse_macro_input, DeriveInput};
+
+#[proc_macro_attribute]
+pub fn repository(attrs: TokenStream, input: TokenStream) -> TokenStream {
+    let mut ast = parse_macro_input!(input as DeriveInput);
+    match &mut ast.data {
+        syn::Data::Struct(ref mut struct_data) => {
+            match &mut struct_data.fields {
+                syn::Fields::Named(fields) => {
+                    let base = proc_macro2::TokenStream::from(attrs);
+                    fields.named.push(
+                        syn::Field::parse_named
+                            .parse2(quote! { base: #base })
+                            .unwrap(),
+                    );
+                }
+                _ => (),
+            }
+
+            quote! {
+                #ast
+            }
+            .into()
+        }
+        _ => panic!("`repository` has to be used with a struct"),
+    }
+}
+//#[proc_macro_attribute]
+//pub fn packages(attrs: TokenStream, input: TokenStream) -> TokenStream {}
+
+#[proc_macro_derive(Repository)]
+pub fn derive_repository(input: TokenStream) -> TokenStream {
+    let input = parse_macro_input!(input as DeriveInput);
+
+    let name = input.ident.clone();
+    let elements = match input.data {
+        ::syn::Data::Struct(s) => match s.fields {
+            syn::Fields::Named(n) => n.named,
+            _ => panic!("only named supported"),
+        },
+        _ => panic!("`Repository` has to be used on a struct"),
+    };
+    let base_type = elements
+        .iter()
+        .find_map(|field| {
+            if let Some(name) = &field.ident {
+                if name != "base" {
+                    None
+                } else {
+                    let t = &field.ty;
+                    Some(quote! {#t})
+                }
+            } else {
+                None
+            }
+        })
+        .expect("can't find base value. Add #[repository] to your struct");
+
+    let expanded = quote! {
+        impl ::bok::Repository for #name {}
+        impl ::std::ops::Deref for #name {
+            type Target = #base_type;
+            fn deref(&self) -> &#base_type {
+                &self.base
+            }
+        }
+    };
+
+    TokenStream::from(expanded)
+}
+
+#[proc_macro_derive(Package)]
+pub fn derive_package(input: TokenStream) -> TokenStream {
+    let input = parse_macro_input!(input as DeriveInput);
+
+    let name = input.ident.clone();
+    let name_builder = quote::format_ident!("{name}Builder");
+    let elements = match input.data {
+        ::syn::Data::Struct(s) => match s.fields {
+            syn::Fields::Named(n) => n.named,
+            _ => panic!("only named supported"),
+        },
+        _ => panic!("only struct allowed"),
+    };
+    let all_fields = elements.iter().map(|field| &field.ident);
+    let non_opt_fields = elements.iter().filter_map(|field| match &field.ty {
+        syn::Type::Path(pth) => {
+            let first_path = pth.path.segments.first().unwrap();
+            if first_path.ident == "Option" {
+                None
+            } else {
+                let id = &field.ident;
+                Some(quote! {#id})
+            }
+        }
+        t => Some(quote! {#t}),
+    });
+    let opt_fields = elements.iter().filter_map(|field| match &field.ty {
+        syn::Type::Path(pth) => {
+            let first_path = pth.path.segments.first().unwrap();
+            if first_path.ident == "Option" {
+                let id = &field.ident;
+                Some(quote! {#id})
+            } else {
+                None
+            }
+        }
+        _ => None,
+    });
+    let non_opt_types = elements.iter().filter_map(|field| match &field.ty {
+        syn::Type::Path(pth) => {
+            let first_path = pth.path.segments.first().unwrap();
+            if first_path.ident == "Option" {
+                None
+            } else {
+                let t = &field.ty;
+                Some(quote! {#t})
+            }
+        }
+        _ => None,
+    });
+    let opt_types = elements.iter().filter_map(|field| match &field.ty {
+        syn::Type::Path(pth) => {
+            let first_path = pth.path.segments.first().unwrap();
+            if first_path.ident == "Option" {
+                match &first_path.arguments {
+                    syn::PathArguments::AngleBracketed(
+                        syn::AngleBracketedGenericArguments { args, .. },
+                    ) => {
+                        if let Some(syn::GenericArgument::Type(
+                            syn::Type::Path(p),
+                        )) = args.first()
+                        {
+                            let id = &p.path.segments.first().unwrap().ident;
+                            Some(quote! {#id})
+                        } else {
+                            None
+                        }
+                    }
+                    _ => None,
+                }
+            } else {
+                None
+            }
+        }
+        _ => None,
+    });
+    let non_opt_fields2 = non_opt_fields.clone();
+    let non_opt_fields3 = non_opt_fields.clone();
+    let non_opt_fields4 = non_opt_fields.clone();
+    let opt_fields2 = opt_fields.clone();
+    let opt_fields3 = opt_fields.clone();
+    let opt_types2 = opt_types.clone();
+    let non_opt_types2 = non_opt_types.clone();
+
+    let expanded = quote! {
+        impl ::bok::Pkg for #name {}
+        impl #name {
+            pub fn builder() -> #name_builder {
+                #name_builder {
+                    #(#all_fields : ::std::option::Option::None,)*
+                }
+            }
+        }
+        pub struct #name_builder {
+            #(#non_opt_fields: ::std::option::Option<#non_opt_types>,)*
+            #(#opt_fields: ::std::option::Option<#opt_types>,)*
+        }
+        impl #name_builder {
+            pub fn build(&mut self) -> Result<#name, ::std::boxed::Box<dyn ::std::error::Error>> {
+                #(if self.#non_opt_fields2.is_none() {
+                    return ::std::result::Result::Err("unset field".into());
+                })*
+                Ok(
+                    #name {
+                        #(#non_opt_fields3 : self.#non_opt_fields3.clone().unwrap(),)*
+                        #(#opt_fields2 : self.#opt_fields2.clone(),)*
+                    }
+                )
+            }
+            #(pub fn #non_opt_fields4 (&mut self, val : #non_opt_types2) -> &mut Self {
+                self.#non_opt_fields4 = Some(val);
+                self
+            })*
+            #(pub fn #opt_fields3 (&mut self, val : #opt_types2) -> &mut Self {
+                self.#opt_fields3 = Some(val);
+                self
+            })*
+        }
+    };
+
+    TokenStream::from(expanded)
+}

bok-utils/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "bok-utils"
+version = "0.1.0"
+edition = "2021"
+authors = ["Luca Fulchir <luca.fulchir@runesauth.com>"]
+homepage   = "https://git.runesauth.com/RunesAuth/bok"
+repository = "https://git.runesauth.com/RunesAuth/bok"
+license = "Apache-2.0 WITH LLVM-exception"
+keywords = [ "bok" ]
+categories = [ "config" ]
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+bok = { path = "../bok" }
+bok-macro = { path = "../bok-macro" }

bok-utils/src/conf/mod.rs

@@ -14,12 +14,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-/*
-use crate::libt;
-static CONF: libt::Conf = libt::Conf {};
+
+static CONF: ::bok::Conf = ::bok::Conf {};
 
 mod conf {
-    use crate::libt;
-    static CONF: libt::Conf = libt::Conf {};
+    static CONF: ::bok::Conf = ::bok::Conf {};
 }
-*/

bok-utils/src/main.rs

@@ -16,7 +16,6 @@
  */
 
 mod conf;
-mod libt;
 mod pkgs;
 
 fn main() {

bok-utils/src/pkgs/mod.rs

@@ -0,0 +1,68 @@
+/*
+ * Copyright 2024 Luca Fulchir <luca.fulchir@runesauth.com>
+ *
+ * Licensed under the Apache License, Version 2.0 with LLVM exception (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License and of the exception at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *     https://spdx.org/licenses/LLVM-exception.html
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//!
+//! Example of two package repositories, where one
+//! extends ancd changes another
+//!
+
+// Export multiple packages in this module
+bok::moduse! {
+    one,
+    two,
+    three,
+}
+
+///
+/// Base repository with some packages
+///
+#[::bok_macro::repository(::bok::RepositoryEmpty)]
+#[derive(::bok_macro::Repository, ::std::default::Default)]
+pub struct Pkgs1 {}
+
+// Add some packages to the repository
+// all packages will have `::default()` values
+bok::repo_packages! {
+    Pkgs1 {
+       One,
+       Two,
+    }
+}
+
+///
+/// This repository extends and changes Pkgs1
+///
+#[::bok_macro::repository(Pkgs1)]
+#[derive(::bok_macro::Repository, ::std::default::Default)]
+pub struct Pkgs2 {}
+
+// add a third package with `::default()` values
+bok::repo_packages! {
+    Pkgs1 {
+       Three,
+    }
+}
+
+impl Pkgs2 {
+    /// override the package `two` options from the base repostiory (Pkgs1)
+    pub fn two(&self) -> Two {
+        Two::builder()
+            .my_attr(42)
+            .build()
+            .expect("Can't build package Two")
+    }
+}

bok-utils/src/pkgs/one.rs

@@ -15,17 +15,15 @@
  * limitations under the License.
  */
 
-use crate::libt;
-//use ::std::boxed::Box;
-
+/// Example package
+/// Automatically implements `.builder().my_attr(42).build()` pattern
+#[derive(::bok_macro::Package)]
 pub struct One {
     pub my_attr: u32,
 }
 
-impl libt::Pkg for One {}
-
-impl One {
-    pub fn new() -> Self {
+impl ::std::default::Default for One {
+    fn default() -> Self {
         One { my_attr: 1 }
     }
 }

bok-utils/src/pkgs/three.rs

@@ -15,16 +15,15 @@
  * limitations under the License.
  */
 
-use crate::libt;
-
+/// Example package
+/// Automatically implements `.builder().my_attr(42).build()` pattern
+#[derive(::bok_macro::Package)]
 pub struct Three {
     pub my_attr: u32,
 }
 
-impl libt::Pkg for Three {}
-
-impl Three {
-    pub fn new() -> Self {
+impl ::std::default::Default for Three {
+    fn default() -> Self {
         Three { my_attr: 3 }
     }
 }

bok-utils/src/pkgs/two.rs

@@ -15,16 +15,15 @@
  * limitations under the License.
  */
 
-use crate::libt;
-
+/// Example package
+/// Automatically implements `.builder().my_attr(42).build()` pattern
+#[derive(::bok_macro::Package)]
 pub struct Two {
     pub my_attr: u32,
 }
 
-impl libt::Pkg for Two {}
-
-impl Two {
-    pub fn new() -> Self {
+impl ::std::default::Default for Two {
+    fn default() -> Self {
         Two { my_attr: 2 }
     }
 }

bok/Cargo.toml

@@ -14,4 +14,7 @@ publish = false
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-bokmacro = { path="../bokmacro" }
+paste = "1.0"
+
+[dev-dependencies]
+bok-macro = { path="../bok-macro" }

bok/src/lib.rs

@@ -19,9 +19,10 @@ use ::std::any::Any;
 
 // Package stuff
 
+/// Get a package from its module and export it in the current module
 #[macro_export]
 macro_rules! moduse {
-    ($($name:ident)*) => {
+    ($($name:ident,)*) => {
         $(
             mod $name;
             #[allow(unused_imports)]
@@ -29,18 +30,57 @@ macro_rules! moduse {
         )*
     };
 }
-pub use moduse;
+// re-export `paste` crate for next macros
+pub use paste;
 
-pub trait PkgsList {}
+/// Add multipla packages to a repo
+/// e.g.:
+/// bok::repo_packages! {
+///   MyRepo {
+///     Mypkg1,
+///     Mypkg2,
+///   }
+/// }
+#[macro_export]
+macro_rules! repo_packages {
+    ( $repo:ident { $($name:ident,)*} )  => {
+        impl $repo {
+            $crate::packages!{$($name ,)*}
+        }
+    };
+}
+
+/// Add multipla packages to a repo Impl
+/// e.g.:
+/// impl MyRepo {
+///   bok::packages! {
+///     Mypkg1,
+///     Mypkg2,
+///   }
+/// }
+#[macro_export]
+macro_rules! packages {
+    ($($name:ident,)*) => {
+        $crate::paste::paste! {
+            $(
+                pub fn [<$name:snake>] (&self) -> $name {
+                    $name::default()
+                }
+            )*
+        }
+    };
+}
+
+pub trait Repository: Default {}
 
 ///
 /// This is an empty Package List. Will be available in the main library
 ///
 #[derive(::std::default::Default)]
-pub struct PkgsEmpty {}
-impl PkgsList for PkgsEmpty {}
+pub struct RepositoryEmpty {}
+impl Repository for RepositoryEmpty {}
 
-pub trait Pkg: Any {
+pub trait Pkg: ::std::default::Default + Any {
     fn as_any(&self) -> &dyn Any
     where
         Self: Sized,
@@ -50,9 +90,9 @@ pub trait Pkg: Any {
 }
 
 // Conf stuff
-/*
 pub struct Conf {}
 
+/*
 pub enum Value<T: Sized> {
     /// Set, only once per
     Set(T),

bok/src/pkgs/mod.rs

@@ -1,87 +0,0 @@
-/*
- * Copyright 2024 Luca Fulchir <luca.fulchir@runesauth.com>
- *
- * Licensed under the Apache License, Version 2.0 with LLVM exception (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License and of the exception at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *     https://spdx.org/licenses/LLVM-exception.html
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//!
-//! Example of two package repositories, where one
-//! extends ancd changes another
-//!
-
-use crate::libt;
-//use ::std::{boxed::Box, vec::Vec};
-
-crate::libt::moduse! {
-    one
-    two
-    three
-}
-
-///
-/// This is a base Package List
-///
-#[derive(::std::default::Default)]
-pub struct Pkgs1 {
-    base: libt::PkgsEmpty,
-}
-/// eventually PkgsList and deref will be replaced by macros
-impl libt::PkgsList for Pkgs1 {}
-impl ::std::ops::Deref for Pkgs1 {
-    type Target = libt::PkgsEmpty;
-    fn deref(&self) -> &libt::PkgsEmpty {
-        &self.base
-    }
-}
-
-impl Pkgs1 {
-    /// Packages like this can become a  macro
-    pub fn one(&self) -> One {
-        One::new()
-    }
-    /// Packages like this can become a  macro
-    pub fn two(&self) -> Two {
-        Two::new()
-    }
-}
-
-///
-/// This is a Package List that extends and changes Pkgs1
-///
-#[derive(::std::default::Default)]
-pub struct Pkgs2 {
-    base: Pkgs1,
-}
-/// eventually PkgsList and deref will be replaced by macros
-impl libt::PkgsList for Pkgs2 {}
-
-impl ::std::ops::Deref for Pkgs2 {
-    type Target = Pkgs1;
-    fn deref(&self) -> &Pkgs1 {
-        &self.base
-    }
-}
-
-impl Pkgs2 {
-    /// example of option override in a package
-    pub fn two(&self) -> Two {
-        let mut t = Two::new();
-        t.my_attr = 42;
-        t
-    }
-    /// Packages like this can become a  macro
-    pub fn three(&self) -> Three {
-        Three::new()
-    }
-}

bokmacro/Cargo.toml

@@ -1,9 +0,0 @@
-[package]
-name = "bokmacro"
-version = "0.1.0"
-edition = "2021"
-
-[lib]
-proc-macro = true
-
-[dependencies]

bokmacro/src/lib.rs

@@ -1,28 +0,0 @@
-/*
- * Copyright 2024 Luca Fulchir <luca.fulchir@runesauth.com>
- *
- * Licensed under the Apache License, Version 2.0 with LLVM exception (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License and of the exception at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *     https://spdx.org/licenses/LLVM-exception.html
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
-macro_rules! moduse {
-    ($(mod $name:ident;)*) => {
-        $(
-            mod $name;
-            #[allow(unused_imports)]
-            use $name::*;
-        )*
-    };
-}
-*/

flake.lock

@@ -38,11 +38,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1707978831,
-        "narHash": "sha256-UblFdWQ2MMZNzD9C/w8+7RjAJ2QIbebbzHUniQ/a44o=",
+        "lastModified": 1708702655,
+        "narHash": "sha256-qxT5jSLhelfLhQ07+AUxSTm1VnVH+hQxDkQSZ/m/Smo=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "c68a9fc85c2cb3a313be6ff40511635544dde8da",
+        "rev": "c5101e457206dd437330d283d6626944e28794b3",
         "type": "github"
       },
       "original": {
@@ -54,11 +54,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1707956935,
-        "narHash": "sha256-ZL2TrjVsiFNKOYwYQozpbvQSwvtV/3Me7Zwhmdsfyu4=",
+        "lastModified": 1708655239,
+        "narHash": "sha256-ZrP/yACUvDB+zbqYJsln4iwotbH6CTZiTkANJ0AgDv4=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "a4d4fe8c5002202493e87ec8dbc91335ff55552c",
+        "rev": "cbc4211f0afffe6dfd2478a62615dd5175a13f9a",
         "type": "github"
       },
       "original": {
@@ -98,11 +98,11 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1708049456,
-        "narHash": "sha256-8qGWZTQPPBhcF5dsl1KSWF+H7RX8C3BZGvqYWKBtLjQ=",
+        "lastModified": 1708827164,
+        "narHash": "sha256-oBNS6pO04Y6gZBLThP3JDDgviex0+WTXz3bVBenyzms=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "4ee92bf124fbc4e157cbce1bc2a35499866989fc",
+        "rev": "e0626adabd5ea461f80b1b11390da2a6575adb30",
         "type": "github"
       },
       "original": {

flake.nix

@@ -42,10 +42,11 @@
            cargo-watch
            cargo-flamegraph
            cargo-license
+           cargo-expand
            lld
            rust-bin.stable.${RUST_VERSION}.default
            rustfmt
-           rust-analyzer
+           pkgs-unstable.rust-analyzer
            #clang_16
            #mold
           # fenrir deps