Remove rust_root from all workflows

.github/workflows/rust-artifact.yaml

@@ -7,10 +7,6 @@ name: Rust Artifact
 on:
   workflow_call:
     inputs:
-      rust_root:
-        description: Root of the rust code tree. May be a relative path.
-        type: string
-        required: false
       build_matrix_build_args:
         description: "Matrix args for the `cargo build` called in the job. Defaults to nothing, mostly useful in includes."
         required: false
@@ -66,14 +62,6 @@ jobs:
         include: ${{ fromJSON(inputs.matrix_include) }}
     steps:
       - uses: actions/checkout@v6
-      - id: rust_root
-        run: |
-          if [ -n "${{ inputs.rust_root }}" ] ; then
-              root="${{ inputs.rust_root }}"
-          else
-              root="${{ github.workspace }}"
-          fi
-          echo "rust_root=$root" >> $GITHUB_OUTPUT
       - name: Install additional dependencies
         if: ${{ inputs.additional_system_deps != '' }}
         run: |
@@ -105,13 +93,12 @@ jobs:
           # Make the target directory the same as the when `rust_target` is empty
           echo "TARGET_DIR=./target" >> $GITHUB_ENV
       - run: ${{inputs.cargo_command_env_vars}} cargo build ${{ matrix.build_args }} --profile ${{ inputs.build_profile }}
-        working-directory: ${{ steps.rust_root.outputs.rust_root }}
       - uses: actions/upload-artifact@v7
         with:
           name: ${{ join(matrix.os) }}-${{ matrix.rust_target }}
           path: |
-            ${{ steps.rust_root.outputs.rust_root }}/target/${{ inputs.build_profile }}/*.dylib
-            ${{ steps.rust_root.outputs.rust_root }}/target/${{ inputs.build_profile }}/*.so
+            target/${{ inputs.build_profile }}/*.dylib
+            target/${{ inputs.build_profile }}/*.so
           if-no-files-found: error
       - name: Print sccache stats
         if: env.SCCACHE_AWS_SECRET != ''

.github/workflows/rust-cargo-update.yaml

@@ -4,10 +4,6 @@ name: Rust Cargo Update
 on:
   workflow_call:
     inputs:
-      rust_root:
-        description: Root of the rust code tree. May be a relative path.
-        type: string
-        required: false
       reviewer:
         description: GitHub username to set as PR reviewer. Falls back to github.actor if not set.
         type: string
@@ -27,7 +23,6 @@ jobs:
       - uses: IronCoreLabs/rust-toolchain@v1
       - name: Run cargo update
         run: cargo update
-        working-directory: ${{ inputs.rust_root || '.' }}
       - name: Check for changes
         id: changes
         run: |

.github/workflows/rust-ci-test.yaml

@@ -14,7 +14,6 @@ jobs:
     uses: ./.github/workflows/rust-ci.yaml
     with:
       run_clippy: true
-      rust_root: test/rust
       test_matrix_include: |
         [
           { rust_version: "", build_only: false },
@@ -26,7 +25,6 @@ jobs:
     name: Rust Daily Test
     uses: ./.github/workflows/rust-daily.yaml
     with:
-      rust_root: test/rust
       matrix_include: |
         [
             { rust_version: "" },

.github/workflows/rust-ci.yaml

@@ -18,10 +18,6 @@ on:
         type: boolean
         default: false
         required: false
-      rust_root:
-        description: Root of the rust code tree. May be a relative path.
-        type: string
-        required: false
       test_matrix_rust_version:
         description: 'A JS array list of versions to be included in the test matrix. Defaults to "["beta"]".'
         required: false
@@ -73,24 +69,8 @@ on:
         required: false
 
 jobs:
-  # Assigns some variables, because GHA doesn't expand variables in inputs.*.default.
-  vars:
-    runs-on: ubuntu-24.04
-    outputs:
-      rust_root: ${{ steps.rust_root.outputs.rust_root }}
-    steps:
-      - id: rust_root
-        run: |
-          if [ -n "${{ inputs.rust_root }}" ] ; then
-            root="${{ inputs.rust_root }}"
-          else
-            root="."
-          fi
-          echo "rust_root=$root" >> $GITHUB_OUTPUT
-
   cargo-test:
     runs-on: ubuntu-24.04
-    needs: vars
     env:
       SCCACHE_AWS_SECRET: ${{ secrets.SCCACHE_AWS_SECRET_ACCESS_KEY }}
       TOOL_CACHE_SECRET_KEY: ${{ secrets.TOOL_CACHE_SECRET_KEY }}
@@ -140,17 +120,14 @@ jobs:
         if: ${{ matrix.rust_target != '' }}
         run: echo "TARGET_FLAGS=--target ${{ matrix.rust_target }}" >> $GITHUB_ENV
       - run: ${{inputs.cargo_command_env_vars}} cargo build ${{ matrix.build_args }}
-        working-directory: ${{ needs.vars.outputs.rust_root }}
       - run: ${{inputs.cargo_command_env_vars}} cargo test ${{ matrix.test_args }} ${{ inputs.cargo_command_test_args }}
         if: ${{ !matrix.build_only }}
-        working-directory: ${{ needs.vars.outputs.rust_root }}
       - name: Print sccache stats
         if: env.SCCACHE_AWS_SECRET != ''
         run: sccache -s
 
   coverage:
     runs-on: ubuntu-24.04
-    needs: vars
     env:
       SCCACHE_AWS_SECRET: ${{ secrets.SCCACHE_AWS_SECRET_ACCESS_KEY }}
       TOOL_CACHE_SECRET_KEY: ${{ secrets.TOOL_CACHE_SECRET_KEY }}
@@ -189,23 +166,21 @@ jobs:
       - uses: taiki-e/install-action@cargo-llvm-cov
       - name: Run llvm-cov
         run: ${{inputs.cargo_command_env_vars}} cargo llvm-cov --html ${{ inputs.cargo_command_test_args }}
-        working-directory: ${{ needs.vars.outputs.rust_root }}
       - name: Get Cobertura report as well
         run: ${{inputs.cargo_command_env_vars}} cargo llvm-cov report --cobertura --output-path cobertura.xml
-        working-directory: ${{ needs.vars.outputs.rust_root }}
       - name: Archive code coverage results
         uses: actions/upload-artifact@v7
         with:
           name: code-coverage-report
-          path: ${{ needs.vars.outputs.rust_root }}/target/llvm-cov/html/
+          path: target/llvm-cov/html/
       - name: Post code coverage to PR comment
         if: ${{ github.base_ref != '' }}
         # If this is run from a fork, this will fail to post a comment on the PR.
         # Since the coverage is also uploaded as an artifact, we don't consider this fatal.
         continue-on-error: true
         uses: 5monkeys/cobertura-action@v14
         with:
-          path: ${{ needs.vars.outputs.rust_root }}/cobertura.xml
+          path: cobertura.xml
           repo_token: ${{ secrets.GITHUB_TOKEN }}
           only_changed_files: true
           show_line: true
@@ -214,7 +189,6 @@ jobs:
 
   format:
     runs-on: ubuntu-24.04
-    needs: vars
     steps:
       - name: Configure git ssh access
         run: |
@@ -228,7 +202,6 @@ jobs:
         with:
           components: rustfmt
       - run: ${{inputs.cargo_command_env_vars}} cargo fmt --all -- --check
-        working-directory: ${{ needs.vars.outputs.rust_root }}
       - name: Install cargo-sort
         uses: taiki-e/install-action@cargo-sort
       - run: |
@@ -237,12 +210,10 @@ jobs:
           else
             ${{inputs.cargo_command_env_vars}} cargo sort --check
           fi
-        working-directory: ${{ needs.vars.outputs.rust_root }}
 
   clippy:
     name: Clippy
     runs-on: ubuntu-24.04
-    needs: vars
     if: inputs.run_clippy
     steps:
       - name: Configure git ssh access
@@ -262,4 +233,3 @@ jobs:
         with:
           components: clippy
       - run: ${{inputs.cargo_command_env_vars}} cargo clippy -- -D warnings
-        working-directory: ${{ needs.vars.outputs.rust_root }}

.github/workflows/rust-daily.yaml

@@ -7,10 +7,6 @@ name: Rust Daily
 on:
   workflow_call:
     inputs:
-      rust_root:
-        description: Root of the rust code tree. May be a relative path.
-        type: string
-        required: false
       rust_versions:
         description: 'A JS array list of versions to be included in the test matrix. Defaults to `["beta"]` (stable will be implicitly added in the default `matrix_include`).'
         required: false
@@ -37,30 +33,11 @@ on:
         required: false
 
 jobs:
-  # Assigns some variables, because GHA doesn't expand variables in inputs.*.default.
-  vars:
-    runs-on: ubuntu-24.04
-    outputs:
-      rust_root: ${{ steps.rust_root.outputs.rust_root }}
-    steps:
-      - id: rust_root
-        run: |
-          if [ -n "${{ inputs.rust_root }}" ] ; then
-            root="${{ inputs.rust_root }}"
-          else
-            root="${{ github.workspace }}"
-          fi
-          echo "rust_root=$root" >> $GITHUB_OUTPUT
-
   cargo-check:
     runs-on: ubuntu-24.04
-    needs: vars
     env:
       SCCACHE_AWS_SECRET: ${{ secrets.SCCACHE_AWS_SECRET_ACCESS_KEY }}
       TOOL_CACHE_SECRET_KEY: ${{ secrets.TOOL_CACHE_SECRET_KEY }}
-    defaults:
-      run:
-        working-directory: ${{ needs.vars.outputs.rust_root }}
     strategy:
       matrix:
         rust_version: "${{ fromJSON(inputs.rust_versions) }}"