chore: refactor deploy script

.github/actions/deploy-subdir/action.yml

@@ -38,55 +38,7 @@ runs:
         TARGET_SUBDIR: ${{ inputs.target-subdir }}
         STORAGE_BRANCH: ${{ inputs.storage-branch }}
         PRESERVE: ${{ inputs.preserve }}
-        GH_TOKEN: ${{ inputs.github-token }}
-      run: |
-        set -euo pipefail
-
-        if [ ! -d "$SOURCE_DIR" ]; then
-          echo "::error::source-dir '$SOURCE_DIR' does not exist" >&2
-          exit 1
-        fi
-
-        REPO_URL="https://x-access-token:${GH_TOKEN}@github.com/${GITHUB_REPOSITORY}.git"
-
-        rm -rf _site _storage
-        mkdir -p _site
-
-        # Pull the current full site from the storage branch (if it exists).
-        if git ls-remote --exit-code --heads "$REPO_URL" "$STORAGE_BRANCH" >/dev/null 2>&1; then
-          git clone --quiet --depth 1 --branch "$STORAGE_BRANCH" "$REPO_URL" _storage
-          ( cd _storage && tar -cf - --exclude=.git . ) | ( cd _site && tar -xf - )
-          rm -rf _storage
-        fi
-
-        # Overlay the freshly built app into its slot.
-        if [ -z "$TARGET_SUBDIR" ] || [ "$TARGET_SUBDIR" = "." ]; then
-          # Site root (shell): replace root entries but keep sibling micro apps.
-          keep=".git .nojekyll $PRESERVE"
-          shopt -s dotglob nullglob
-          for entry in _site/*; do
-            name="$(basename "$entry")"
-            case " $keep " in
-              *" $name "*) continue ;;
-            esac
-            rm -rf "$entry"
-          done
-          shopt -u dotglob nullglob
-          cp -R "$SOURCE_DIR"/. _site/
-        else
-          rm -rf "_site/${TARGET_SUBDIR}"
-          mkdir -p "_site/${TARGET_SUBDIR}"
-          cp -R "$SOURCE_DIR"/. "_site/${TARGET_SUBDIR}/"
-        fi
-
-        # SPA fallback + disable Jekyll processing.
-        touch _site/.nojekyll
-        if [ -f _site/index.html ]; then
-          cp _site/index.html _site/404.html
-        fi
-
-        echo "Assembled site tree:"
-        find _site -maxdepth 2 -mindepth 1 | sort
+      run: ${{ github.action_path }}/assemble-site.sh
 
     - name: Upload Pages artifact 📦
       uses: actions/upload-pages-artifact@v5
@@ -99,19 +51,4 @@ runs:
         TARGET_SUBDIR: ${{ inputs.target-subdir }}
         STORAGE_BRANCH: ${{ inputs.storage-branch }}
         GH_TOKEN: ${{ inputs.github-token }}
-      run: |
-        set -euo pipefail
-        REPO_URL="https://x-access-token:${GH_TOKEN}@github.com/${GITHUB_REPOSITORY}.git"
-        SLOT="${TARGET_SUBDIR:-/ (shell)}"
-
-        cd _site
-        rm -rf .git
-        git init -q
-        git add -A
-        git -c user.name="github-actions[bot]" \
-            -c user.email="41898282+github-actions[bot]@users.noreply.github.com" \
-            commit -q -m "deploy: update ${SLOT} (${GITHUB_SHA})" || {
-              echo "Nothing to persist."; exit 0;
-            }
-        git branch -M "$STORAGE_BRANCH"
-        git push -f "$REPO_URL" "$STORAGE_BRANCH"
+      run: ${{ github.action_path }}/persist-site.sh

.github/actions/deploy-subdir/assemble-site.sh

@@ -0,0 +1,48 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+if [ ! -d "$SOURCE_DIR" ]; then
+  echo "::error::source-dir '$SOURCE_DIR' does not exist" >&2
+  exit 1
+fi
+
+REPO_URL="https://x-access-token:${GH_TOKEN}@github.com/${GITHUB_REPOSITORY}.git"
+
+rm -rf _site _storage
+mkdir -p _site
+
+# Pull the current full site from the storage branch (if it exists).
+if git ls-remote --exit-code --heads "$REPO_URL" "$STORAGE_BRANCH" >/dev/null 2>&1; then
+  git clone --quiet --depth 1 --branch "$STORAGE_BRANCH" "$REPO_URL" _storage
+  ( cd _storage && tar -cf - --exclude=.git . ) | ( cd _site && tar -xf - )
+  rm -rf _storage
+fi
+
+# Overlay the freshly built app into its slot.
+if [ -z "$TARGET_SUBDIR" ] || [ "$TARGET_SUBDIR" = "." ]; then
+  # Site root (shell): replace root entries but keep sibling micro apps.
+  keep=".git .nojekyll $PRESERVE"
+  shopt -s dotglob nullglob
+  for entry in _site/*; do
+    name="$(basename "$entry")"
+    case " $keep " in
+      *" $name "*) continue ;;
+    esac
+    rm -rf "$entry"
+  done
+  shopt -u dotglob nullglob
+  cp -R "$SOURCE_DIR"/. _site/
+else
+  rm -rf "_site/${TARGET_SUBDIR}"
+  mkdir -p "_site/${TARGET_SUBDIR}"
+  cp -R "$SOURCE_DIR"/. "_site/${TARGET_SUBDIR}/"
+fi
+
+# SPA fallback + disable Jekyll processing.
+touch _site/.nojekyll
+if [ -f _site/index.html ]; then
+  cp _site/index.html _site/404.html
+fi
+
+echo "Assembled site tree:"
+find _site -maxdepth 2 -mindepth 1 | sort

.github/actions/deploy-subdir/persist-site.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+REPO_URL="https://x-access-token:${GH_TOKEN}@github.com/${GITHUB_REPOSITORY}.git"
+SLOT="${TARGET_SUBDIR:-/ (shell)}"
+
+cd _site
+rm -rf .git
+git init -q
+git add -A
+git -c user.name="github-actions[bot]" \
+    -c user.email="41898282+github-actions[bot]@users.noreply.github.com" \
+    commit -q -m "deploy: update ${SLOT} (${GITHUB_SHA})" || {
+      echo "Nothing to persist."; exit 0;
+    }
+git branch -M "$STORAGE_BRANCH"
+git push -f "$REPO_URL" "$STORAGE_BRANCH"