extract resilient version into a file so we can bump on branches

Author: ul

.github/workflows/build.yml

@@ -0,0 +1,36 @@
+name: Build PDF
+
+on:
+  push:
+    branches-ignore: [main]
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Install SILE
+        run: |
+          sudo add-apt-repository -y ppa:sile-typesetter/sile
+          sudo apt-get update
+          sudo apt-get install -y sile luarocks fonts-sil-gentiumplus
+
+      - name: Read resilient version
+        id: resilient
+        run: echo "version=$(cat .resilient-version | tr -d '[:space:]')" >> "$GITHUB_OUTPUT"
+
+      - name: Install dependencies
+        run: luarocks --lua-version $(sile -q <<< SILE.lua_version) --tree lua_modules install resilient.sile ${{ steps.resilient.outputs.version }}
+
+      - name: Build PDF
+        run: |
+          sile --luarocks-tree lua_modules -u inputters.silm ddd-reference.silm
+          sile --luarocks-tree lua_modules -u inputters.silm ddd-reference.silm
+
+      - name: Upload PDF as artifact
+        uses: actions/upload-artifact@v6
+        with:
+          name: ddd-reference
+          path: ddd-reference.pdf

.github/workflows/release.yml

@@ -19,8 +19,12 @@ jobs:
           sudo apt-get update
           sudo apt-get install -y sile luarocks fonts-sil-gentiumplus
 
+      - name: Read resilient version
+        id: resilient
+        run: echo "version=$(cat .resilient-version | tr -d '[:space:]')" >> "$GITHUB_OUTPUT"
+
       - name: Install dependencies
-        run: luarocks --lua-version $(sile -q <<< SILE.lua_version) --tree lua_modules install resilient.sile 3.4.0
+        run: luarocks --lua-version $(sile -q <<< SILE.lua_version) --tree lua_modules install resilient.sile ${{ steps.resilient.outputs.version }}
 
       - name: Build PDF
         # Twice as label references change after the first run.

.resilient-version

@@ -0,0 +1 @@
+3.4.0