marine/tools/cli/src/build.rs
2020-07-28 23:33:46 +03:00

80 lines
2.3 KiB
Rust

/*
* Copyright 2020 Fluence Labs Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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 crate::Result;
use crate::errors::CLIError;
use std::process::Command;
#[derive(serde::Deserialize)]
#[serde(tag = "reason", rename_all = "kebab-case")]
enum DiagnosticMessage {
BuildScriptExecuted,
BuildFinished,
CompilerArtifact { filenames: Vec<String> },
RunWithArgs,
}
pub(crate) fn build(trailing_args: Vec<&str>) -> Result<()> {
use std::io::Read;
let mut cargo = Command::new("cargo");
cargo.arg("build").arg("--target").arg("wasm32-wasi");
cargo.arg("--message-format").arg("json-render-diagnostics");
cargo.args(trailing_args);
let mut process = cargo.stdout(std::process::Stdio::piped()).spawn()?;
let mut output = String::new();
process
.stdout
.take()
.ok_or_else(|| CLIError::WasmCompilationError("Compilation failed: no output".to_string()))?
.read_to_string(&mut output)?;
let status = process.wait()?;
if !status.success() {
return Err(CLIError::WasmCompilationError(format!(
"Compilation failed with status {}",
status
)));
}
let mut wasms: Vec<String> = Vec::new();
for line in output.lines() {
if let Ok(DiagnosticMessage::CompilerArtifact { filenames }) = serde_json::from_str(line) {
wasms.extend(
filenames
.into_iter()
.filter(|name| name.ends_with(".wasm"))
.collect::<Vec<_>>(),
)
}
}
if wasms.is_empty() {
// it is possible to build a object file without Wasm artifacts
return Ok(());
}
for wasm in wasms {
let wasm_path = std::path::PathBuf::from(wasm);
fce_wit_generator::embed_wit(wasm_path)?;
}
Ok(())
}