Allow compiling uucore with wasm32-unknown-unknown (#7840)

and fix the build

.github/workflows/CICD.yml

@@ -513,7 +513,7 @@ jobs:
       fail-fast: false
       matrix:
         job:
-          # - { os , target , cargo-options , features , use-cross , toolchain, skip-tests, workspace-tests }
+          # - { os , target , cargo-options , default-features,  features , use-cross , toolchain, skip-tests, workspace-tests, skip-package, skip-publish }
           - { os: ubuntu-latest  , target: arm-unknown-linux-gnueabihf , features: feat_os_unix_gnueabihf , use-cross: use-cross , skip-tests: true }
           - { os: ubuntu-24.04-arm  , target: aarch64-unknown-linux-gnu   , features: feat_os_unix_gnueabihf }
           - { os: ubuntu-latest  , target: aarch64-unknown-linux-musl  , features: feat_os_unix      , use-cross: use-cross , skip-tests: true }
@@ -524,13 +524,14 @@ jobs:
           - { os: ubuntu-latest  , target: x86_64-unknown-linux-gnu    , features: "feat_os_unix,uudoc"   , use-cross: no, workspace-tests: true }
           - { os: ubuntu-latest  , target: x86_64-unknown-linux-musl   , features: feat_os_unix      , use-cross: use-cross }
           - { os: ubuntu-latest  , target: x86_64-unknown-redox        , features: feat_os_unix_redox     , use-cross: redoxer , skip-tests: true }
+          - { os: ubuntu-latest  , target: wasm32-unknown-unknown      , default-features: false, features: uucore/format, skip-tests: true, skip-package: true, skip-publish: true }
           - { os: macos-latest   , target: aarch64-apple-darwin        , features: feat_os_macos, workspace-tests: true } # M1 CPU
           - { os: macos-13       , target: x86_64-apple-darwin         , features: feat_os_macos, workspace-tests: true }
           - { os: windows-latest , target: i686-pc-windows-msvc        , features: feat_os_windows }
           # TODO: Re-enable after rust-onig release: https://github.com/rust-onig/rust-onig/issues/193
           # - { os: windows-latest , target: x86_64-pc-windows-gnu       , features: feat_os_windows }
           - { os: windows-latest , target: x86_64-pc-windows-msvc      , features: feat_os_windows }
-          - { os: windows-latest , target: aarch64-pc-windows-msvc     , features: feat_os_windows, use-cross: use-cross , skip-tests: true }
+          - { os: windows-latest , target: aarch64-pc-windows-msvc     , features: feat_os_windows, use-cross: use-cross , skip-tests: true }      
     steps:
     - uses: actions/checkout@v4
       with:
@@ -620,6 +621,10 @@ jobs:
         CARGO_FEATURES_OPTION='' ;
         if [ -n "${{ matrix.job.features }}" ]; then CARGO_FEATURES_OPTION='--features=${{ matrix.job.features }}' ; fi
         outputs CARGO_FEATURES_OPTION
+        # * CARGO_DEFAULT_FEATURES_OPTION
+        CARGO_DEFAULT_FEATURES_OPTION='' ;
+        if [ "${{ matrix.job.default-features }}" == "false" ]; then CARGO_DEFAULT_FEATURES_OPTION='--no-default-features' ; fi
+        outputs CARGO_DEFAULT_FEATURES_OPTION
         # * CARGO_CMD
         CARGO_CMD='cross'
         CARGO_CMD_OPTIONS='+${{ env.RUST_MIN_SRV }}'
@@ -753,20 +758,20 @@ jobs:
         # dependencies
         echo "## dependency list"
         cargo fetch --locked --quiet
-        cargo tree --locked --target=${{ matrix.job.target }} ${{ matrix.job.cargo-options }} ${{ steps.vars.outputs.CARGO_FEATURES_OPTION }} --no-dedupe -e=no-dev --prefix=none | grep -vE "$PWD" | sort --unique
+        cargo tree --locked --target=${{ matrix.job.target }} ${{ matrix.job.cargo-options }} ${{ steps.vars.outputs.CARGO_FEATURES_OPTION }} ${{ steps.vars.outputs.CARGO_DEFAULT_FEATURES_OPTION }} --no-dedupe -e=no-dev --prefix=none | grep -vE "$PWD" | sort --unique
     - name: Build
       shell: bash
       run: |
         ## Build
         ${{ steps.vars.outputs.CARGO_CMD }} ${{ steps.vars.outputs.CARGO_CMD_OPTIONS }} build --release \
-        --target=${{ matrix.job.target }} ${{ matrix.job.cargo-options }} ${{ steps.vars.outputs.CARGO_FEATURES_OPTION }}
+        --target=${{ matrix.job.target }} ${{ matrix.job.cargo-options }} ${{ steps.vars.outputs.CARGO_FEATURES_OPTION }} ${{ steps.vars.outputs.CARGO_DEFAULT_FEATURES_OPTION }}
     - name: Test
       if: matrix.job.skip-tests != true
       shell: bash
       run: |
         ## Test
         ${{ steps.vars.outputs.CARGO_CMD }} ${{ steps.vars.outputs.CARGO_CMD_OPTIONS }} test --target=${{ matrix.job.target }} \
-        ${{ steps.vars.outputs.CARGO_TEST_OPTIONS}} ${{ matrix.job.cargo-options }} ${{ steps.vars.outputs.CARGO_FEATURES_OPTION }}
+        ${{ steps.vars.outputs.CARGO_TEST_OPTIONS}} ${{ matrix.job.cargo-options }} ${{ steps.vars.outputs.CARGO_FEATURES_OPTION }} ${{ steps.vars.outputs.CARGO_DEFAULT_FEATURES_OPTION }}
       env:
         RUST_BACKTRACE: "1"
     - name: Test individual utilities
@@ -784,6 +789,7 @@ jobs:
         name: ${{ env.PROJECT_NAME }}-${{ matrix.job.target }}${{ steps.vars.outputs.ARTIFACTS_SUFFIX }}
         path: target/${{ matrix.job.target }}/release/${{ env.PROJECT_NAME }}${{ steps.vars.outputs.EXE_suffix }}
     - name: Package
+      if: matrix.job.skip-package != true
       shell: bash
       run: |
         ## Package artifact(s)
@@ -819,7 +825,7 @@ jobs:
         fi
     - name: Publish
       uses: softprops/action-gh-release@v2
-      if: steps.vars.outputs.DEPLOY
+      if: steps.vars.outputs.DEPLOY && matrix.job.skip-publish != true
       with:
         draft: true
         files: |

src/uu/dd/Cargo.toml

@@ -21,7 +21,12 @@ path = "src/dd.rs"
 clap = { workspace = true }
 gcd = { workspace = true }
 libc = { workspace = true }
-uucore = { workspace = true, features = ["format", "parser", "quoting-style"] }
+uucore = { workspace = true, features = [
+  "format",
+  "parser",
+  "quoting-style",
+  "fs",
+] }
 thiserror = { workspace = true }
 
 [target.'cfg(any(target_os = "linux", target_os = "android"))'.dependencies]

src/uucore/src/lib/lib.rs

@@ -24,6 +24,7 @@ pub use uucore_procs::*;
 // * cross-platform modules
 pub use crate::mods::display;
 pub use crate::mods::error;
+#[cfg(feature = "fs")]
 pub use crate::mods::io;
 pub use crate::mods::line_ending;
 pub use crate::mods::os;

src/uucore/src/lib/mods.rs

@@ -6,6 +6,7 @@
 
 pub mod display;
 pub mod error;
+#[cfg(feature = "fs")]
 pub mod io;
 pub mod line_ending;
 pub mod os;