chore(cargo) Create 2 Cargo.toml file: One for stable, one for nigh…

…tly.

`rustc` nightly is required for `no_std`, which is required only for
the WASM target. nom needs to be used with the feature `alloc` in this
particular case. So to get stable for every other targets, we should
write:

```toml
[target.'cfg(feature = "wasm")'.dependencies]
nom = { version = "4.0.0", default-features = false, features = ["alloc"] }

[target.'cfg(not(feature = "wasm"))'.dependencies]
nom = { version = "4.0.0" }
```

Sadly, it does not work, see rust-lang/cargo#2524.

The only alternative I found so far, is to use 2 `Cargo.toml`
files. Next commits are likely to split the repository into Cargo
workspaces.

.cargo/config

@@ -0,0 +1,2 @@
+[build]
+target-dir = "./target"

.gitignore

@@ -1,10 +1,9 @@
-/Cargo.lock
+Cargo.lock
 /bindings/asmjs/gutenberg_post_parser.asm.js
 /bindings/asmjs/gutenberg_post_parser.asm.js.br
 /bindings/asmjs/gutenberg_post_parser.asm.js.gz
 /bindings/c/gutenberg-post-parser
 /bindings/c/gutenberg_post_parser.h
-/bindings/nodejs/native/Cargo.lock
 /bindings/nodejs/native/artifacts.json
 /bindings/nodejs/native/index.node
 /bindings/nodejs/native/target/

cargo/no_std/Cargo.toml

@@ -0,0 +1,43 @@
+[package]
+name = "gutenberg_post_parser"
+version = "0.10.0"
+authors = ["Ivan Enderlin <ivan.enderlin@hoa-project.net>"]
+license = "BSD-3-Clause"
+readme = "../../README.md"
+repository = "https://github.com/Hywan/gutenberg-parser-rs"
+build = "../../build.rs"
+
+[[bin]]
+name = "gutenberg-post-parser"
+path = "../../src/main.rs"
+required-features = ["bin"]
+
+[lib]
+name = "gutenberg_post_parser"
+crate-type = ["cdylib", "dylib", "lib", "staticlib"]
+path = "../../src/lib.rs"
+
+[profile.release]
+debug = false
+lto = true
+opt-level = 3
+
+[features]
+default = ["nodejs"] # Because of a strange behavior, `nodejs` must be in `default`. Use `just --list` to compile correctly.
+wasm = ["wee_alloc"]
+c = ["cbindgen"]
+nodejs = ["neon", "neon-build", "serde_json", "neon-serde"]
+bin = ["failure", "clap"]
+
+[dependencies]
+nom = { version = "4.0.0", default-features = false, features = ["alloc"] }
+wee_alloc = { version = "0.4.1", optional = true }
+neon = { version = "0.1.23", optional = true }
+serde_json = { version = "1.0.21", optional = true }
+neon-serde = { version = "0.0.3", optional = true }
+failure = { version = "0.1.1", optional = true }
+clap = { version = "^2.31.2", optional = true }
+
+[build-dependencies]
+cbindgen = { version = "0.6.0", optional = true }
+neon-build = { version = "0.1.23", optional = true }

cargo/std/Cargo.toml

@@ -0,0 +1,43 @@
+[package]
+name = "gutenberg_post_parser"
+version = "0.10.0"
+authors = ["Ivan Enderlin <ivan.enderlin@hoa-project.net>"]
+license = "BSD-3-Clause"
+readme = "../../README.md"
+repository = "https://github.com/Hywan/gutenberg-parser-rs"
+build = "../../build.rs"
+
+[[bin]]
+name = "gutenberg-post-parser"
+path = "../../src/main.rs"
+required-features = ["bin"]
+
+[lib]
+name = "gutenberg_post_parser"
+crate-type = ["cdylib", "dylib", "lib", "staticlib"]
+path = "../../src/lib.rs"
+
+[profile.release]
+debug = false
+lto = true
+opt-level = 3
+
+[features]
+default = ["nodejs"] # Because of a strange behavior, `nodejs` must be in `default`. Use `just --list` to compile correctly.
+wasm = ["wee_alloc"]
+c = ["cbindgen"]
+nodejs = ["neon", "neon-build", "serde_json", "neon-serde"]
+bin = ["failure", "clap"]
+
+[dependencies]
+nom = { version = "4.0.0" }
+wee_alloc = { version = "0.4.1", optional = true }
+neon = { version = "0.1.23", optional = true }
+serde_json = { version = "1.0.21", optional = true }
+neon-serde = { version = "0.0.3", optional = true }
+failure = { version = "0.1.1", optional = true }
+clap = { version = "^2.31.2", optional = true }
+
+[build-dependencies]
+cbindgen = { version = "0.6.0", optional = true }
+neon-build = { version = "0.1.23", optional = true }

cargo/std/tests

@@ -0,0 +1 @@
+../../tests

justfile

@@ -1,4 +1,6 @@
 cwd = `pwd`
+cargo_no_std = "cargo/no_std/Cargo.toml"
+cargo_std = "cargo/std/Cargo.toml"
 asmjs_directory = "bindings/asmjs"
 c_directory = "bindings/c"
 nodejs_directory = "bindings/nodejs"
@@ -7,15 +9,15 @@ wasm_directory = "bindings/wasm"
 
 # Build a regular library..
 build-library:
-	cargo build --no-default-features --release
+	cargo build --manifest-path {{cargo_std}} --no-default-features --release
 
 # Build a regular binary.
 build-binary:
-	cargo build --no-default-features --features "bin" --release
+	cargo build --manifest-path {{cargo_std}} --no-default-features --features "bin" --release
 
 # Build the parser and produce a WASM binary.
 build-wasm:
-	RUSTFLAGS='-g' cargo +nightly build --no-default-features --features "wasm" --target wasm32-unknown-unknown --release
+	RUSTFLAGS='-g' cargo +nightly build --manifest-path {{cargo_no_std}} --no-default-features --features "wasm" --target wasm32-unknown-unknown --release
 	cp target/wasm32-unknown-unknown/release/gutenberg_post_parser.wasm {{wasm_directory}}
 	cd {{wasm_directory}} && \
 		wasm-gc gutenberg_post_parser.wasm && \
@@ -45,7 +47,7 @@ build-asmjs: build-wasm
 
 # Build the parser and produce a C binary.
 build-c:
-	cargo build --no-default-features --features "c" --release
+	cargo build --manifest-path {{cargo_std}} --no-default-features --features "c" --release
 	cd {{c_directory}} && \
 		clang \
 			-Wall \
@@ -60,11 +62,11 @@ build-c:
 
 # Build the parser and produce a NodeJS native module.
 build-nodejs:
-	RUSTFLAGS='--cfg feature="nodejs"' neon build --debug --rust nightly --path {{nodejs_directory}}/
+	RUSTFLAGS='--cfg feature="nodejs"' neon build --debug --path {{nodejs_directory}}/
 
 # Build the parser and produce a PHP extension.
 build-php:
-	cargo build --no-default-features --features "c" --release
+	cargo build --manifest-path {{cargo_std}} --no-default-features --features "c" --release
 	cd {{php_directory}}/extension/gutenberg_post_parser/ && \
 		phpize && \
 		./configure && \
@@ -75,19 +77,19 @@ test: test-library-unit test-library-integration test-documentation
 
 # Run the unit tests.
 test-library-unit:
-	cargo test --lib --no-default-features
+	cargo test --manifest-path {{cargo_std}} --lib --no-default-features
 
 # Run the integration tests.
 test-library-integration:
-	cargo test --test integration --no-default-features
+	cargo test --manifest-path {{cargo_std}} --test integration --no-default-features
 
 # Run the documentation tests.
 test-documentation:
-	cargo test --doc --no-default-features
+	cargo test --manifest-path {{cargo_std}} --doc --no-default-features
 
 # Build the documentation.
 build-doc:
-	cargo doc --release --no-default-features --package gutenberg_post_parser
+	cargo doc --manifest-path {{cargo_std}} --release --no-default-features --package gutenberg_post_parser
 
 # Open the documentation.
 open-doc: build-doc