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Fix contracts compilation with CARGO_TARGET_DIR set (#2927)

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In case `CARGO_TARGET_DIR` is set, build artifacts were in the wrong
place and `build.rs` was failing. With
`CARGO_TARGET_DIR=/home/nazar-pc/.cache/cargo/target`:
```
error: failed to run custom build command for `pallet-contracts-fixtures v1.0.0 (/web/subspace/polkadot-sdk/substrate/frame/contracts/fixtures)`

Caused by:
  process didn't exit successfully: `/home/nazar-pc/.cache/cargo/target/debug/build/pallet-contracts-fixtures-35d534f7ac3009e0/build-script-build` (exit status: 1)
  --- stderr
  Error: Failed to read "/tmp/.tmpiYwXfv/target/wasm32-unknown-unknown/release/dummy.wasm"

  Caused by:
      Can't read from the file: Os { code: 2, kind: NotFound, message: "No such file or directory" }
```

The file was actually in
`/home/nazar-pc/.cache/cargo/target/wasm32-unknown-unknown/release/dummy.wasm`.
This commit is contained in:
Nazar Mokrynskyi
2024-01-18 23:18:05 +02:00
committed by GitHub
parent f9bbe7db97
commit b4b523c84c
1 changed files with 1 additions and 0 deletions
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substrate/frame/contracts/fixtures/build.rs
+1
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@@ -203,6 +203,7 @@ fn invoke_wasm_build(current_dir: &Path) -> Result<()> {
let build_res = Command::new(env::var("CARGO")?)
.current_dir(current_dir)
.env("CARGO_TARGET_DIR", current_dir.join("target").display().to_string())
.env("CARGO_ENCODED_RUSTFLAGS", encoded_rustflags)
.args(["build", "--release", "--target=wasm32-unknown-unknown"])
.output()