ensure zstd is installed in all stages that could access GHA cache

Author: leofang

.github/actions/fetch_ctk/action.yml

@@ -20,35 +20,11 @@ runs:
         echo "CTK_CACHE_FILENAME=mini-ctk-${{ inputs.cuda-version }}-${{ inputs.host-platform }}.tar.gz" >> $GITHUB_ENV
 
     - name: Install dependencies
-      shell: bash --noprofile --norc -xeuo pipefail {0}
-      run: |
-        dependencies=(zstd curl xz-utils)
-        dependent_exes=(zstd curl xz)
-
-        not_found=0
-        for dep in ${dependent_exes[@]}; do
-          if ! (command -v curl 2>&1 >/dev/null); then
-            not_found=1
-            break
-          fi
-        done
-        if [[ $not_found == 0 ]]; then
-          echo "All dependencies are found. Do nothing."
-          exit 0
-        fi
-        if ! (command -v sudo 2>&1 >/dev/null); then
-          if [[ $EUID == 0 ]]; then
-            alias SUDO=""
-          else
-            echo "The following oprations require root access."
-            exit 1
-          fi
-        else
-          alias SUDO="sudo"
-        fi
-        shopt -s expand_aliases
-        SUDO apt update
-        SUDO apt install -y ${dependencies[@]}
+      uses: ./.github/actions/install_unix_deps
+      continue-on-error: false
+      with:
+        dependencies: "zstd curl xz-utils"
+        dependent_exes: "zstd curl xz"
 
     - name: Download CTK cache
       id: ctk-get-cache

.github/actions/install_unix_deps/action.yml

@@ -0,0 +1,45 @@
+name: Install dependencies on Ubuntu
+
+description: Install needed dependencies, regardless if using GitHub- or self- hosted runners, container, sudo or not.
+
+inputs:
+  dependencies:
+    required: true
+    type: string
+  dependent_exes:  
+    required: true
+    type: string
+
+runs:
+  using: composite
+  steps:
+    - name: Install dependencies
+      shell: bash --noprofile --norc -xeuo pipefail {0}
+      run: |
+        dependencies=(${{ inputs.dependencies }})
+        dependent_exes=(${{ inputs.dependent_exes }})
+
+        not_found=0
+        for dep in ${dependent_exes[@]}; do
+          if ! (command -v $dep 2>&1 >/dev/null); then
+            not_found=1
+            break
+          fi
+        done
+        if [[ $not_found == 0 ]]; then
+          echo "All dependencies are found. Do nothing."
+          exit 0
+        fi
+        if ! (command -v sudo 2>&1 >/dev/null); then
+          if [[ $EUID == 0 ]]; then
+            alias SUDO=""
+          else
+            echo "The following oprations require root access."
+            exit 1
+          fi
+        else
+          alias SUDO="sudo"
+        fi
+        shopt -s expand_aliases
+        SUDO apt update
+        SUDO apt install -y ${dependencies[@]}

.github/workflows/build-and-test.yml

@@ -100,35 +100,12 @@ jobs:
 
       - name: Install dependencies
         if: ${{ env.USE_CACHE == '1' }}
-        run: |
+        uses: ./.github/actions/install_unix_deps
+        continue-on-error: false
+        with:
           # For GHA Cache
-          dependencies=(zstd)
-          dependent_exes=(zstd)
-
-          not_found=0
-          for dep in ${dependent_exes[@]}; do
-            if ! (command -v curl 2>&1 >/dev/null); then
-              not_found=1
-              break
-            fi
-          done
-          if [[ $not_found == 0 ]]; then
-            echo "All dependencies are found. Do nothing."
-            exit 0
-          fi
-          if ! (command -v sudo 2>&1 >/dev/null); then
-            if [[ $EUID == 0 ]]; then
-              alias SUDO=""
-            else
-              echo "The following oprations require root access."
-              exit 1
-            fi
-          else
-            alias SUDO="sudo"
-          fi
-          shopt -s expand_aliases
-          SUDO apt update
-          SUDO apt install -y ${dependencies[@]}
+          dependencies: "zstd"
+          dependent_exes: "zstd"
 
       - name: Dump environment
         run: |
@@ -350,6 +327,14 @@ jobs:
           echo "CUDA_BINDINGS_ARTIFACTS_DIR=$(realpath "$REPO_DIR/cuda_bindings/dist")" >> $GITHUB_ENV
           echo "SKIP_CUDA_BINDINGS_TEST=${SKIP_CUDA_BINDINGS_TEST}" >> $GITHUB_ENV
 
+      - name: Install dependencies
+        uses: ./.github/actions/install_unix_deps
+        continue-on-error: false
+        with:
+          # zstd for GHA Cache, gcc for Cython tests
+          dependencies: "zstd build-essential"
+          dependent_exes: "zstd gcc"
+
       # We'll try GHA Artifacts first, and then fall back to GHA Cache
       - name: Download cuda.bindings build artifacts
         id: cuda-bindings-download
@@ -449,8 +434,6 @@ jobs:
           pip install -r requirements.txt
           pytest -rxXs tests/
           if [[ "${{ matrix.host-platform }}" == linux* ]]; then
-            # cython tests require gcc
-            apt install -y build-essential
             bash tests/cython/build_tests.sh
           elif [[ "${{ matrix.host-platform }}" == win* ]]; then
             # TODO: enable this once win-64 runners are up 

.github/workflows/build-docs.yml

@@ -31,6 +31,14 @@ jobs:
       # TODO: cache conda env to speed up the workflow once conda-incubator/setup-miniconda#267
       # is resolved
 
+      - name: Install dependencies
+        uses: ./.github/actions/install_unix_deps
+        continue-on-error: false
+        with:
+          # zstd for GHA Cache
+          dependencies: "zstd"
+          dependent_exes: "zstd"
+
       - name: Set up miniforge
         uses: conda-incubator/setup-miniconda@v3
         with: