refactor extract mkdir

Everyone does `mkdir build; src/autogen.sh`; why not merge them.

16 files changed, 210 insertions, 261 deletions

diff --git a/.github/actions/setup/directories/action.yml b/.github/actions/setup/directories/action.yml
new file mode 100644
index 0000000000..c4d64ee7ea
--- /dev/null
+++ b/.github/actions/setup/directories/action.yml
@@ -0,0 +1,111 @@
+name: Setup directories etc.
+description: >-
+  Set up the source code and build directories (plus some
+  environmental tweaks)
+
+inputs:
+  srcdir:
+    required: false
+    default: ${{ github.workspace }}
+    description: >-
+      Directory to (re-)checkout source codes.  This will be created
+      if absent.  If there is no `configure` file that is also
+      generated inside.
+
+  builddir:
+    required: false
+    default: ${{ github.workspace }}
+    description: >-
+      Where binaries and other generated contents go.  This will be
+      created if absent.
+
+  makeup:
+    required: false
+    type: boolean
+    # Note that `default: false` evaluates to a string constant
+    # `'false'`, which is a truthy value :sigh:
+    # https://github.com/actions/runner/issues/2238
+    default: ''
+    description: >-
+      If set to true, additionally runs `make up`.
+
+outputs: {} # nothing?
+
+runs:
+  using: composite
+
+  steps:
+    # Note that `shell: bash` works on both Windows and Linux, but not
+    # `shell: sh`.  This is because GitHub hosted Windows runners have
+    # their bash manually installed.
+    - shell: bash
+      run: |
+        mkdir -p ${{ inputs.srcdir }}
+        mkdir -p ${{ inputs.builddir }}
+
+    # Did you know that actions/checkout works without git(1)?  We are
+    # checking that here.
+    - id: which
+      shell: bash
+      run: |
+        echo "git=`command -v git`" >> "$GITHUB_OUTPUT"
+        echo "sudo=`command -v sudo`" >> "$GITHUB_OUTPUT"
+        echo "autoreconf=`command -v autoreconf`" >> "$GITHUB_OUTPUT"
+
+    - if: steps.which.outputs.git
+      shell: bash
+      run: |
+        git config --global core.autocrlf false
+        git config --global core.eol lf
+        git config --global advice.detachedHead 0
+        git config --global init.defaultBranch garbage
+
+    - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
+      with:
+        path: ${{ inputs.srcdir }}
+
+    - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
+      with:
+        path: ${{ inputs.srcdir }}/.downloaded-cache
+        key: downloaded-cache
+
+    - if: steps.which.outputs.autoreconf
+      shell: bash
+      working-directory: ${{ inputs.srcdir }}
+      run: ./autogen.sh
+
+    # This is for MinGW.
+    - if: runner.os == 'Windows'
+      shell: bash
+      run: echo "GNUMAKEFLAGS=-j$((2 * NUMBER_OF_PROCESSORS))" >> $GITHUB_ENV
+
+    - if: runner.os == 'Linux'
+      shell: bash
+      run: echo "GNUMAKEFLAGS=-sj$((1 + $(nproc --all)))" >> "$GITHUB_ENV"
+
+    # macOS' GNU make is so old that they doesn't understand `GNUMAKEFLAGS`.
+    - if: runner.os == 'macOS'
+      shell: bash
+      run: echo "MAKEFLAGS=-j$((1 + $(sysctl -n hw.activecpu)))" >> "$GITHUB_ENV"
+
+    - if: inputs.makeup
+      shell: bash
+      working-directory: ${{ inputs.srcdir }}
+      run: |
+        touch config.status
+        touch rbconfig.time
+        sed -f tool/prereq.status template/Makefile.in common.mk > Makefile
+        make up
+
+    # Cleanup, runs even on failure
+    - if: always() && inputs.makeup
+      shell: bash
+      working-directory: ${{ inputs.srcdir }}
+      run: rm -f config.status Makefile rbconfig.rb .rbconfig.time
+
+    - if: steps.which.outputs.sudo
+      shell: bash
+      run: |
+        sudo chmod -R go-w /usr/share
+        chmod -v go-w $HOME $HOME/.config || :
+        sudo bash -c 'IFS=:; for d in '"$PATH"'; do chmod -v go-w $d; done' || :
diff --git a/.github/workflows/annocheck.yml b/.github/workflows/annocheck.yml
index e73ae40397..811f676ecc 100644
--- a/.github/workflows/annocheck.yml
+++ b/.github/workflows/annocheck.yml
@@ -94,25 +94,15 @@ jobs:
     steps:
       - run: id
         working-directory:
-      - run: mkdir build
-        working-directory:
-      - name: setenv
-        run: |
-          echo "GNUMAKEFLAGS=-sj$((1 + $(nproc --all)))" >> $GITHUB_ENV
       - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
         with:
-          path: src
-      - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+      - uses: ./.github/actions/setup/directories
         with:
-          path: src/.downloaded-cache
-          key: downloaded-cache
-      - name: autogen
-        run: |
-          if [ ! -f ./autogen.sh ]; then
-            ls -la
-          fi
-          ./autogen.sh
-        working-directory: src
+          srcdir: src
+          builddir: build
+          makeup: true
       - name: Run configure
         run: >
           ../src/configure -C ${default_configure} ${append_configure}
@@ -122,8 +112,6 @@ jobs:
             matrix.entry.crosshost || '"${default_cc}${append_cc:+ $append_cc}"'
           }}
           --${{ matrix.entry.shared || 'enable' }}-shared
-      - run: make extract-extlibs
-      - run: make incs
       - run: make showflags
       - run: make
       - run: make test
@@ -136,8 +124,7 @@ jobs:
       #   env:
       #     CHECK_LEAKS: true
       - run: make test-annocheck
-
-      - uses: ./src/.github/actions/slack
+      - uses: ./.github/actions/slack
         with:
           label: ${{ matrix.entry.name }}
           SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
diff --git a/.github/workflows/baseruby.yml b/.github/workflows/baseruby.yml
index c86da2ca12..75e28e281c 100644
--- a/.github/workflows/baseruby.yml
+++ b/.github/workflows/baseruby.yml
@@ -46,21 +46,16 @@ jobs:
           - ruby-3.2
 
     steps:
-      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
-      - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
-        with:
-          path: .downloaded-cache
-          key: downloaded-cache
       - uses: ruby/setup-ruby@250fcd6a742febb1123a77a841497ccaa8b9e939 # v1.152.0
         with:
           ruby-version: ${{ matrix.ruby }}
           bundler: none
-      - run: echo "GNUMAKEFLAGS=-j$((1 + $(nproc --all)))" >> $GITHUB_ENV
+      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
       - uses: ./.github/actions/setup/ubuntu
-      - run: ./autogen.sh
+      - uses: ./.github/actions/setup/directories
+        with:
+          makeup: true
       - run: ./configure --disable-install-doc
-      - run: make common-srcs
-      - run: make incs
       - run: make all
       - run: make test
       - uses: ./.github/actions/slack
diff --git a/.github/workflows/bundled_gems.yml b/.github/workflows/bundled_gems.yml
index 3998f86f80..a39adaf354 100644
--- a/.github/workflows/bundled_gems.yml
+++ b/.github/workflows/bundled_gems.yml
@@ -31,25 +31,14 @@ jobs:
     name: update ${{ github.workflow }}
     runs-on: ubuntu-latest
     steps:
-      - name: git config
-        run: |
-          git config --global advice.detachedHead 0
-          git config --global init.defaultBranch garbage
+      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
+
+      - uses: ./.github/actions/setup/directories
 
       - name: Set ENV
         run: |
-          echo "GNUMAKEFLAGS=-j$((1 + $(nproc --all)))" >> $GITHUB_ENV
           echo "TODAY=$(date +%F)" >> $GITHUB_ENV
 
-      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
-
-      - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
-        with:
-          path: .downloaded-cache
-          key: downloaded-cache-${{ github.sha }}
-          restore-keys: |
-            downloaded-cache
-
       - name: Download previous gems list
         run: |
           data=bundled_gems.json
diff --git a/.github/workflows/check_dependencies.yml b/.github/workflows/check_dependencies.yml
index d55846b2bc..b2c3130ea1 100644
--- a/.github/workflows/check_dependencies.yml
+++ b/.github/workflows/check_dependencies.yml
@@ -38,20 +38,12 @@ jobs:
     runs-on: ${{ matrix.os }}
     if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
     steps:
-      - name: git config
-        run: |
-          git config --global advice.detachedHead 0
-          git config --global init.defaultBranch garbage
       - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
       - uses: ./.github/actions/setup/ubuntu
         if: ${{ contains(matrix.os, 'ubuntu') }}
       - uses: ./.github/actions/setup/macos
         if: ${{ contains(matrix.os, 'macos') }}
-      - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
-        with:
-          path: .downloaded-cache
-          key: downloaded-cache
-      - run: ./autogen.sh
+      - uses: ./.github/actions/setup/directories
       - name: Run configure
         run: ./configure -C --disable-install-doc --disable-rubygems --with-gcc 'optflags=-O0' 'debugflags=-save-temps=obj -g'
       - run: make all golf
diff --git a/.github/workflows/check_misc.yml b/.github/workflows/check_misc.yml
index 5f83ecfbbb..ab0b4f0008 100644
--- a/.github/workflows/check_misc.yml
+++ b/.github/workflows/check_misc.yml
@@ -15,6 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
+      - uses: ./.github/actions/setup/directories
       - name: Check if C-sources are US-ASCII
         run: |
           grep -r -n '[^	 -~]' -- *.[chy] include internal win32/*.[ch] && exit 1 || :
@@ -40,14 +41,6 @@ jobs:
         run: true
         if: ${{ github.ref == 'refs/heads/master' }}
 
-      - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
-        with:
-          path: .downloaded-cache
-          key: downloaded-cache-${{ github.sha }}
-          restore-keys: |
-            downloaded-cache
-        if: steps.gems.outcome == 'success'
-
       - name: Download previous gems list
         run: |
           data=default_gems.json
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 8efbaa1ed8..282b8b6987 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -53,10 +53,7 @@ jobs:
     - name: Install libraries
       uses: ./.github/actions/setup/ubuntu
 
-    - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
-      with:
-        path: .downloaded-cache
-        key: downloaded-cache
+    - uses: ./.github/actions/setup/directories
 
     - name: Remove an obsolete rubygems vendored file
       run: sudo rm /usr/lib/ruby/vendor_ruby/rubygems/defaults/operating_system.rb
@@ -66,9 +63,6 @@ jobs:
       with:
         languages: ${{ matrix.language }}
 
-    - name: Set ENV
-      run: echo "GNUMAKEFLAGS=-j$((1 + $(nproc --all)))" >> $GITHUB_ENV
-
     - name: Autobuild
       uses: github/codeql-action/autobuild@cdcdbb579706841c47f7063dda365e292e5cad7a # v2.13.4
 
diff --git a/.github/workflows/compilers.yml b/.github/workflows/compilers.yml
index 769e0a57ba..a47d7c2490 100644
--- a/.github/workflows/compilers.yml
+++ b/.github/workflows/compilers.yml
@@ -215,28 +215,18 @@ jobs:
     steps:
       - run: id
         working-directory:
-      - run: mkdir build
-        working-directory:
-      - name: setenv
-        run: |
-          echo "GNUMAKEFLAGS=-sj$((1 + $(nproc --all)))" >> $GITHUB_ENV
       - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
         with:
-          path: src
-      - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+      - uses: ./.github/actions/setup/directories
         with:
-          path: src/.downloaded-cache
-          key: downloaded-cache
+          srcdir: src
+          builddir: build
+          makeup: true
       - name: Install Rust
         if: ${{ matrix.entry.rust }}
         run: sudo apt-get update && sudo apt install -y rustc
-      - name: autogen
-        run: |
-          if [ ! -f ./autogen.sh ]; then
-            ls -la
-          fi
-          ./autogen.sh
-        working-directory: src
       - name: Run configure
         run: >
           ../src/configure -C ${default_configure} ${append_configure}
@@ -249,8 +239,6 @@ jobs:
       - name: Add to ext/Setup # statically link just the etc extension
         run: mkdir ext && echo etc >> ext/Setup
         if: ${{ matrix.entry.name == 'ext/Setup' }}
-      - run: make extract-extlibs
-      - run: make incs
       - run: make showflags
       - run: make
       - run: make test
@@ -267,7 +255,7 @@ jobs:
       - run: make test-annocheck
         if: ${{ matrix.entry.check && endsWith(matrix.entry.name, 'annocheck') }}
 
-      - uses: ./src/.github/actions/slack
+      - uses: ./.github/actions/slack
         with:
           label: ${{ matrix.entry.name }}
           SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index bb2c571c89..2be750e853 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -43,33 +43,25 @@ jobs:
     runs-on: ${{ matrix.os }}
     if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
     steps:
-      - run: mkdir build
-        working-directory:
-      - name: git config
-        run: |
-          git config --global advice.detachedHead 0
-          git config --global init.defaultBranch garbage
       - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
         with:
-          path: src
-      - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
-        with:
-          path: src/.downloaded-cache
-          key: downloaded-cache
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
       - name: Install libraries
-        uses: ./src/.github/actions/setup/macos
+        uses: ./.github/actions/setup/macos
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          makeup: true
       - name: Set ENV
         run: |
-          echo "MAKEFLAGS=-j$((1 + $(sysctl -n hw.activecpu)))" >> $GITHUB_ENV
           for lib in openssl@1.1 readline; do
             CONFIGURE_ARGS="${CONFIGURE_ARGS:+$CONFIGURE_ARGS }--with-${lib%@*}-dir=$(brew --prefix $lib)"
           done
           echo CONFIGURE_ARGS="${CONFIGURE_ARGS}" >> $GITHUB_ENV
-      - run: ./autogen.sh
-        working-directory: src
       - name: Run configure
         run: ../src/configure -C --disable-install-doc
-      - run: make incs
       - run: make prepare-gems
         if: ${{ matrix.test_task == 'test-bundled-gems' }}
       - run: make
@@ -92,7 +84,7 @@ jobs:
           PRECHECK_BUNDLED_GEMS: "no"
         if: ${{ matrix.test_task == 'check' && matrix.skipped_tests != '' }}
         continue-on-error: ${{ matrix.continue-on-skipped_tests || false }}
-      - uses: ./src/.github/actions/slack
+      - uses: ./.github/actions/slack
         with:
           label: ${{ matrix.test_task }}
           SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
diff --git a/.github/workflows/mingw.yml b/.github/workflows/mingw.yml
index 224ecbd65f..3d3ede56a1 100644
--- a/.github/workflows/mingw.yml
+++ b/.github/workflows/mingw.yml
@@ -56,28 +56,10 @@ jobs:
       fail-fast: false
     if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
     steps:
-      - run: mkdir build
-        working-directory:
-      - name: git config
-        run: |
-          git config --global core.autocrlf false
-          git config --global core.eol lf
-          git config --global advice.detachedHead 0
-          git config --global init.defaultBranch garbage
-      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
-        with:
-          path: src
-      - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
-        with:
-          path: src/.downloaded-cache
-          key: downloaded-cache
       - name: Set up Ruby & MSYS2
         uses: ruby/setup-ruby@250fcd6a742febb1123a77a841497ccaa8b9e939 # v1.152.0
         with:
           ruby-version: ${{ matrix.base_ruby }}
-      - name: set env
-        run: |
-          echo "GNUMAKEFLAGS=-j$((2 * NUMBER_OF_PROCESSORS))" >> $GITHUB_ENV
 
       - name: where check
         run: |
@@ -91,6 +73,7 @@ jobs:
             echo '##['endgroup']'
           done
           $result
+        working-directory:
 
       - name: version check
         run: |
@@ -103,38 +86,34 @@ jobs:
             echo '##['endgroup']'
           done
           $result
+        working-directory:
 
-      - name: autogen
-        run: |
-          ./autogen.sh
-        working-directory: src
+      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
+        with:
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          makeup: true
 
       - name: configure
         run: >
           ../src/configure --disable-install-doc --prefix=/.
           --build=$CHOST --host=$CHOST --target=$CHOST
 
-      - name: update
-        run: |
-          make incs
-
-      - name: download gems
-        run: |
-          make update-gems
-
       - name: make all
         timeout-minutes: 30
-        run: |
-          make
+        run: make
 
       - name: make install
-        run: |
-          make DESTDIR=../install install-nodoc
+        run: make DESTDIR=../install install-nodoc
 
       - name: test
         timeout-minutes: 30
-        run: |
-          make test
+        run: make test
         env:
           GNUMAKEFLAGS: ""
           RUBY_TESTOPTS: "-v --tty=no"
diff --git a/.github/workflows/rjit-bindgen.yml b/.github/workflows/rjit-bindgen.yml
index 3d767e72c0..7a7fe02799 100644
--- a/.github/workflows/rjit-bindgen.yml
+++ b/.github/workflows/rjit-bindgen.yml
@@ -39,44 +39,28 @@ jobs:
     runs-on: ubuntu-20.04
     if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
     steps:
-      - run: mkdir build
-        working-directory:
-      - name: Set ENV
-        run: |
-          echo "GNUMAKEFLAGS=-j$((1 + $(nproc --all)))" >> $GITHUB_ENV
       - name: Set up Ruby
         uses: ruby/setup-ruby@250fcd6a742febb1123a77a841497ccaa8b9e939 # v1.152.0
         with:
           ruby-version: '3.1'
-      - name: git config
-        run: |
-          git config --global advice.detachedHead 0
-          git config --global init.defaultBranch garbage
       - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
         with:
-          path: src
-      - name: Install libraries
-        uses: ./src/.github/actions/setup/ubuntu
-      - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+      - uses: ./.github/actions/setup/ubuntu
+      - uses: ./.github/actions/setup/directories
         with:
-          path: src/.downloaded-cache
-          key: downloaded-cache
-      - name: Fixed world writable dirs
-        run: |
-          chmod -v go-w $HOME $HOME/.config
-          sudo chmod -R go-w /usr/share
-          sudo bash -c 'IFS=:; for d in '"$PATH"'; do chmod -v go-w $d; done' || :
-      - run: ./autogen.sh
-        working-directory: src
+          srcdir: src
+          builddir: build
+          makeup: true
       - name: Run configure
         run: ../src/configure -C --disable-install-doc --prefix=$(pwd)/install --enable-yjit=dev_nodebug
-      - run: make incs
       - run: make
       - run: make install
       - run: make ${{ matrix.task }}
       - run: git diff --exit-code
         working-directory: src
-      - uses: ./src/.github/actions/slack
+      - uses: ./.github/actions/slack
         with:
           SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
         if: ${{ failure() && github.event_name == 'push' }}
diff --git a/.github/workflows/rjit.yml b/.github/workflows/rjit.yml
index 1b64a1c102..65e0791b19 100644
--- a/.github/workflows/rjit.yml
+++ b/.github/workflows/rjit.yml
@@ -48,31 +48,16 @@ jobs:
     runs-on: ubuntu-22.04
     if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
     steps:
-      - run: mkdir build
-        working-directory:
-      - name: Set ENV
-        run: |
-          echo "GNUMAKEFLAGS=-j$((1 + $(nproc --all)))" >> $GITHUB_ENV
-      - name: git config
-        run: |
-          git config --global advice.detachedHead 0
-          git config --global init.defaultBranch garbage
-      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.1.0
+      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
         with:
-          path: src
-      - name: Install libraries
-        uses: ./src/.github/actions/setup/ubuntu
-      - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.0.11
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+      - uses: ./.github/actions/setup/ubuntu
+      - uses: ./.github/actions/setup/directories
         with:
-          path: src/.downloaded-cache
-          key: downloaded-cache
-      - name: Fixed world writable dirs
-        run: |
-          chmod -v go-w $HOME $HOME/.config
-          sudo chmod -R go-w /usr/share
-          sudo bash -c 'IFS=:; for d in '"$PATH"'; do chmod -v go-w $d; done' || :
-      - run: ./autogen.sh
-        working-directory: src
+          srcdir: src
+          builddir: build
+          makeup: true
       - name: Run configure
         env:
           arch: ${{matrix.arch}}
@@ -103,7 +88,7 @@ jobs:
         env:
           GNUMAKEFLAGS: ""
           RUN_OPTS: ${{ matrix.run_opts }}
-      - uses: ./src/.github/actions/slack
+      - uses: ./.github/actions/slack
         with:
           label: ${{ matrix.run_opts }}
           SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 07c97ed9d8..0f6dc3942f 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -54,32 +54,18 @@ jobs:
     runs-on: ubuntu-20.04
     if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
     steps:
-      - run: mkdir build
-        working-directory:
-      - name: Set ENV
-        run: |
-          echo "GNUMAKEFLAGS=-j$((1 + $(nproc --all)))" >> $GITHUB_ENV
-      - name: git config
-        run: |
-          git config --global advice.detachedHead 0
-          git config --global init.defaultBranch garbage
       - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
         with:
-          path: src
-      - uses: ./src/.github/actions/setup/ubuntu
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+      - uses: ./.github/actions/setup/ubuntu
         with:
           arch: ${{matrix.arch}}
-      - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
+      - uses: ./.github/actions/setup/directories
         with:
-          path: src/.downloaded-cache
-          key: downloaded-cache
-      - name: Fixed world writable dirs
-        run: |
-          chmod -v go-w $HOME $HOME/.config
-          sudo chmod -R go-w /usr/share
-          sudo bash -c 'IFS=:; for d in '"$PATH"'; do chmod -v go-w $d; done' || :
-      - run: ./autogen.sh
-        working-directory: src
+          srcdir: src
+          builddir: build
+          makeup: true
       - name: Run configure
         env:
           arch: ${{matrix.arch}}
@@ -87,7 +73,6 @@ jobs:
         run: >-
           $SETARCH ../src/configure -C --disable-install-doc ${configure:-cppflags=-DRUBY_DEBUG}
           ${arch:+--target=$arch-$OSTYPE --host=$arch-$OSTYPE}
-      - run: $SETARCH make incs
       - run: $SETARCH make prepare-gems
         if: ${{ matrix.test_task == 'test-bundled-gems' }}
       - run: $SETARCH make
@@ -115,7 +100,7 @@ jobs:
           TESTS: ${{ matrix.skipped_tests }}
         if: ${{ matrix.test_task == 'check' && matrix.skipped_tests != '' }}
         continue-on-error: ${{ matrix.continue-on-skipped_tests || false }}
-      - uses: ./src/.github/actions/slack
+      - uses: ./.github/actions/slack
         with:
           label: ${{ matrix.test_task }} ${{ matrix.configure }}${{ matrix.arch }}
           SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
diff --git a/.github/workflows/wasm.yml b/.github/workflows/wasm.yml
index bc788aef34..cd62957217 100644
--- a/.github/workflows/wasm.yml
+++ b/.github/workflows/wasm.yml
@@ -53,15 +53,15 @@ jobs:
     runs-on: ubuntu-20.04
     if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
     steps:
-      - run: mkdir build
-        working-directory:
-      - name: git config
-        run: |
-          git config --global advice.detachedHead 0
-          git config --global init.defaultBranch garbage
       - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
         with:
-          path: src
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+      - uses: ./.github/actions/setup/directories
+        with:
+          srcdir: src
+          builddir: build
+          makeup: true
       - name: Install libraries
         run: |
           set -ex
@@ -87,10 +87,7 @@ jobs:
         working-directory: src
       - name: Set ENV
         run: |
-          echo "MAKEFLAGS=-j$((1 + $(sysctl -n hw.activecpu)))" >> $GITHUB_ENV
           echo "WASI_SDK_PATH=/opt/wasi-sdk" >> $GITHUB_ENV
-      - run: ./autogen.sh
-        working-directory: src
       - name: Run configure
         run: |
           ../src/configure \
@@ -103,7 +100,6 @@ jobs:
             optflags="${{ matrix.entry.optflags }}" \
             debugflags="${{ matrix.entry.debugflags }}" \
             wasmoptflags="${{ matrix.entry.wasmoptflags }} ${{ matrix.entry.debugflags }}"
-
       # miniruby may not be built when cross-compling
       - run: make mini ruby
       - name: Run basictest
@@ -114,8 +110,7 @@ jobs:
           NO_THREAD_TESTS="$(grep -L Thread -R ./bootstraptest | awk -F/ '{ print $NF }' | uniq | sed -n 's/test_\(.*\).rb/\1/p' | paste -s -d, -)"
           ruby ./bootstraptest/runner.rb --ruby="$(which wasmtime) run $PWD/../build/ruby --mapdir /::./ -- " --verbose "--sets=$NO_THREAD_TESTS"
         working-directory: src
-
-      - uses: ./src/.github/actions/slack
+      - uses: ./.github/actions/slack
         with:
           label: ${{ matrix.name }}
           SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index a733ae03f7..1dc6defd32 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -84,19 +84,14 @@ jobs:
           iex "& {$(irm get.scoop.sh)} -RunAsAdmin"
           Join-Path (Resolve-Path ~).Path "scoop\shims" >> $Env:GITHUB_PATH
         shell: pwsh
-      - name: git config
-        run: |
-          git config --global core.autocrlf false
-          git config --global core.eol lf
-          git config --global advice.detachedHead 0
-          git config --global init.defaultBranch garbage
       - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
         with:
-          path: src
-      - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+      - uses: ./.github/actions/setup/directories
         with:
-          path: src/.downloaded-cache
-          key: downloaded-cache
+          srcdir: src
+          builddir: build
       - name: setup env
         # %TEMP% is inconsistent with %TMP% and test-all expects they are consistent.
         # https://github.com/actions/virtual-environments/issues/712#issuecomment-613004302
@@ -140,7 +135,7 @@ jobs:
         env:
           RUBY_TESTOPTS: -j${{env.TEST_JOBS}} --job-status=normal
         timeout-minutes: 60
-      - uses: ./src/.github/actions/slack
+      - uses: ./.github/actions/slack
         with:
           label: VS${{ matrix.vs }} / ${{ matrix.test_task || 'check' }}
           SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot
diff --git a/.github/workflows/yjit-ubuntu.yml b/.github/workflows/yjit-ubuntu.yml
index 8747b82588..6b20a5058d 100644
--- a/.github/workflows/yjit-ubuntu.yml
+++ b/.github/workflows/yjit-ubuntu.yml
@@ -97,39 +97,25 @@ jobs:
     runs-on: ubuntu-20.04
     if: ${{ !contains(github.event.head_commit.message, '[DOC]') && !contains(github.event.pull_request.labels.*.name, 'Documentation') }}
     steps:
-      - run: mkdir build
-        working-directory:
-      - name: Install Rust
-        if: ${{ matrix.rust_version }}
-        run: rustup install ${{ matrix.rust_version }} --profile minimal
-      - name: git config
-        run: |
-          git config --global advice.detachedHead 0
-          git config --global init.defaultBranch garbage
       - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
         with:
-          path: src
-      - uses: ./src/.github/actions/setup/ubuntu
-      - uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
+          sparse-checkout-cone-mode: false
+          sparse-checkout: /.github
+      - uses: ./.github/actions/setup/ubuntu
+      - uses: ./.github/actions/setup/directories
         with:
-          path: src/.downloaded-cache
-          key: downloaded-cache
-      - name: Fixed world writable dirs
-        run: |
-          chmod -v go-w $HOME $HOME/.config
-          sudo chmod -R go-w /usr/share
-          sudo bash -c 'IFS=:; for d in '"$PATH"'; do chmod -v go-w $d; done' || :
-      - name: Set ENV
-        run: |
-          echo "GNUMAKEFLAGS=-j$((1 + $(nproc --all)))" >> $GITHUB_ENV
-      - run: ./autogen.sh
-        working-directory: src
+          srcdir: src
+          builddir: build
+          makeup: true
+      - name: Install Rust
+        if: ${{ matrix.rust_version }}
+        run: rustup install ${{ matrix.rust_version }} --profile minimal
       - name: Run configure
         run: ../src/configure -C --disable-install-doc --prefix=$(pwd)/install ${{ matrix.configure }}
       - run: make incs
       - run: make prepare-gems
         if: ${{ matrix.test_task == 'test-bundled-gems' }}
-      - run: make -j
+      - run: make
       - name: Create dummy files in build dir
         run: |
           ./miniruby -e '(("a".."z").to_a+("A".."Z").to_a+("0".."9").to_a+%w[foo bar test zzz]).each{|basename|File.write("#{basename}.rb", "raise %(do not load #{basename}.rb)")}'
@@ -154,8 +140,7 @@ jobs:
           BASE_REPO: ${{ github.event.pull_request.base.repo.full_name }}
           BASE_SHA: ${{ github.event.pull_request.base.sha }}
         if: ${{ matrix.test_task == 'yjit-bench' && startsWith(github.event_name, 'pull') }}
-
-      - uses: ./src/.github/actions/slack
+      - uses: ./.github/actions/slack
         with:
           label: ${{ matrix.test_task }} ${{ matrix.configure }}
           SLACK_WEBHOOK_URL: ${{ secrets.SIMPLER_ALERTS_URL }} # ruby-lang slack: ruby/simpler-alerts-bot