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Make RUSTFLAGS configurable in wasm-builder (#3057)

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* Make `RUSTFLAGS` configurable in `wasm-builder`

* Version ups

* Update `Cargo.lock`
This commit is contained in:
Bastian Köcher
2019-07-08 15:37:42 +02:00
committed by Gavin Wood
parent 3a002a9100
commit 29311e98b4
14 changed files with 47 additions and 23 deletions
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substrate/core/utils/wasm-builder-runner/src/lib.rs
+17
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@@ -30,6 +30,9 @@ use std::{env, process::{Command, self}, fs, path::{PathBuf, Path}};
/// Environment variable that tells us to skip building the WASM binary.
const SKIP_BUILD_ENV: &str = "SKIP_WASM_BUILD";
/// Environment variable to extend the `RUSTFLAGS` variable given to the WASM build.
const WASM_BUILD_RUSTFLAGS_ENV: &str = "WASM_BUILD_RUSTFLAGS";
/// Environment variable that tells us to create a dummy WASM binary.
///
/// This is useful for `cargo check` to speed-up the compilation.
@@ -93,6 +96,20 @@ impl WasmBuilderSource {
}
}
/// Build the currently built project as WASM binary and extend `RUSTFLAGS` with the given rustflags.
///
/// For more information, see [`build_current_project`].
pub fn build_current_project_with_rustflags(
file_name: &str,
wasm_builder_source: WasmBuilderSource,
rustflags: &str,
) {
let given_rustflags = env::var(WASM_BUILD_RUSTFLAGS_ENV).unwrap_or_default();
env::set_var(WASM_BUILD_RUSTFLAGS_ENV, format!("{} {}", given_rustflags, rustflags));
build_current_project(file_name, wasm_builder_source)
}
/// Build the currently built project as WASM binary.
///
/// The current project is determined using the `CARGO_MANIFEST_DIR` environment variable.