refactor: unify Rust build and publish into single job

Author: nabil-Tounarti

.github/workflows/rust-build.yml

@@ -7,10 +7,6 @@ on:
         description: 'Rust version to use'
         default: 'stable'
         type: string
-      build-target:
-        description: 'Cargo profile to use for building (debug, release)'
-        default: 'release'
-        type: string
       working-directory:
         description: 'The directory to run jobs from'
         default: '.'
@@ -48,7 +44,7 @@ env:
   CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
 
 jobs:
-  build:
+  build_and_publish:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
@@ -58,7 +54,7 @@ jobs:
         uses: dtolnay/rust-toolchain@stable
         with:
           toolchain: ${{ inputs.rust-version }}
-          components: clippy, rustfmt
+          components: clippy, rustfmt, cargo
 
       - name: Cache dependencies
         if: ${{ inputs.enable-cache }}
@@ -69,9 +65,9 @@ jobs:
             ~/.cargo/registry
             ~/.cargo/git
             target
-          key: ${{ runner.os }}-cargo-${{ inputs.build-target }}-${{ hashFiles('**/Cargo.lock') }}
+          key: ${{ runner.os }}-cargo-release-${{ hashFiles('**/Cargo.lock') }}
           restore-keys: |
-            ${{ runner.os }}-cargo-${{ inputs.build-target }}-
+            ${{ runner.os }}-cargo-release-
 
       - name: Check formatting
         working-directory: ${{ inputs.working-directory }}
@@ -92,11 +88,11 @@ jobs:
 
       - name: Build
         working-directory: ${{ inputs.working-directory }}
-        run: cargo build --profile ${{ inputs.build-target }}
+        run: cargo build --release
 
       - name: Run tests
         working-directory: ${{ inputs.working-directory }}
-        run: cargo test --profile ${{ inputs.build-target }}
+        run: cargo test --release
 
       - name: Upload artifact
         if: ${{ inputs.upload-artifact }}
@@ -105,24 +101,12 @@ jobs:
           name: ${{ inputs.artifact-name }}
           path: ${{ inputs.artifact-path }}
 
-  publish:
-    needs: build
-    if: ${{ inputs.publish-crates-io && needs.build.result == 'success' }}
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
-      - name: Install Rust toolchain
-        uses: dtolnay/rust-toolchain@stable
-        with:
-          toolchain: ${{ inputs.rust-version }}
-          components: cargo
-
       - name: Validate package
+        if: ${{ inputs.publish-crates-io }}
         working-directory: ${{ inputs.working-directory }}
         run: cargo package
 
       - name: Publish to crates.io
+        if: ${{ inputs.publish-crates-io }}
         working-directory: ${{ inputs.working-directory }}
         run: cargo publish

rust-build/README.md

@@ -12,6 +12,7 @@ A reusable GitHub Actions workflow for building, linting, testing, and auditing
 - Set a working directory for monorepos
 - Upload build artifacts
 - Publish to crates.io
+- All operations are performed in a single job (no redundant toolchain installs)
 
 ## Usage
 
@@ -25,7 +26,6 @@ jobs:
     uses: iExecBlockchainComputing/github-actions-workflows/.github/workflows/rust-build.yml@main
     with:
       rust-version: 'stable'
-      build-target: 'release'
       working-directory: './my-crate'
       run-audit: true
       enable-cache: true
@@ -38,22 +38,23 @@ jobs:
 
 ## Inputs
 
-| Name                | Description                                                  | Default   | Required |
-| ------------------- | ------------------------------------------------------------ | --------- | -------- |
-| `rust-version`      | Rust version to use                                          | `stable`  | No       |
-| `build-target`      | Cargo profile to use for building (`debug`, `release`, etc.) | `release` | No       |
-| `working-directory` | The directory to run jobs from                               | `.`       | No       |
-| `run-audit`         | Run `cargo audit` for security vulnerabilities               | `true`    | No       |
-| `enable-cache`      | Enable caching of dependencies                               | `true`    | No       |
-| `upload-artifact`   | Upload a build artifact after building                       | `false`   | No       |
-| `artifact-name`     | Name of the artifact to upload                               | –         | No       |
-| `artifact-path`     | Path to the artifact to upload                               | –         | No       |
-| `publish-crates-io` | Publish the package to crates.io (only if build succeeds)    | `false`   | No       |
+| Name                | Description                                               | Default  | Required |
+| ------------------- | --------------------------------------------------------- | -------- | -------- |
+| `rust-version`      | Rust version to use                                       | `stable` | No       |
+| `working-directory` | The directory to run jobs from                            | `.`      | No       |
+| `run-audit`         | Run `cargo audit` for security vulnerabilities            | `true`   | No       |
+| `enable-cache`      | Enable caching of dependencies                            | `true`   | No       |
+| `upload-artifact`   | Upload a build artifact after building                    | `false`  | No       |
+| `artifact-name`     | Name of the artifact to upload                            | –        | No       |
+| `artifact-path`     | Path to the artifact to upload                            | –        | No       |
+| `publish-crates-io` | Publish the package to crates.io (only if build succeeds) | `false`  | No       |
+
+Note: All builds use the release profile by default. There is no build-target input anymore
 
 ## Secrets
 
 | Name                   | Description                             | Required                              |
-| -----------------------| --------------------------------------- | ------------------------------------- |
+| ---------------------- | --------------------------------------- | ------------------------------------- |
 | `CARGO_REGISTRY_TOKEN` | crates.io API token for `cargo publish` | Only if `publish-crates-io` is `true` |
 
 ## Examples
@@ -86,16 +87,6 @@ jobs:
       run-audit: false
 ```
 
-### Use Debug Target
-
-```yaml
-jobs:
-  build-and-test:
-    uses: iExecBlockchainComputing/github-actions-workflows/.github/workflows/rust-build.yml@main
-    with:
-      build-target: 'debug'
-```
-
 ### Upload Artifact After Build
 
 ```yaml