Cache botan build directory

Author: jorisdral

.github/actions/setup-botan/action.yml

@@ -17,7 +17,19 @@ inputs:
 runs:
   using: composite
   steps:
+  ### Restore cache ###
+
+  - name: 💾 Restore build directory cache
+    uses: actions/cache/restore@v4
+    id: cache-build-dir
+    with:
+      path: "${{ github.workspace }}/.tmp-botan/custom-build-dir"
+      key: botan-build-dir-${{ runner.os }}-Botan-${{ inputs.botan-version }}
+
+  ### Init ###
+
   - name: 📥 Checkout Botan repository
+    if: ${{ steps.cache-build-dir.outputs.cache-hit != 'true' }}
     uses: actions/checkout@v5
     with:
       repository: randombit/botan
@@ -28,12 +40,13 @@ runs:
   # of the setup-botan action went from 10-20 minutes to ~1-2 minute at the time
   # of writing this comment.
   - name: 💾 Cache using ccache/sccache
+    if: ${{ steps.cache-build-dir.outputs.cache-hit != 'true' }}
     uses: hendrikmuhs/[email protected]
     with:
       create-symlink: true
       # Use sccache on Windows, otherwise use ccache
       variant: ${{ runner.os == 'Windows' && 'sccache' || 'ccache' }}
-      key: setup-botan-${{ runner.os }}-Botan-${{ inputs.botan-version }}
+      key: botan-ccache-${{ runner.os }}-Botan-${{ inputs.botan-version }}
       evict-old-files: 'job'
       max-size: 50M
 
@@ -44,23 +57,24 @@ runs:
   # 'inputs.run-tests', then the tests are built as well.
 
   - name: "🛠️ [Unix]: Build Botan"
-    if: ${{ runner.os == 'Linux' || runner.os == 'MacOS' }}
+    if: ${{ steps.cache-build-dir.outputs.cache-hit != 'true' && (runner.os == 'Linux' || runner.os == 'MacOS') }}
     shell: sh
     working-directory: ./tmp-botan
     run: |
       python3 ./configure.py \
         --compiler-cache=ccache \
         --build-targets=static,shared,cli${{ inputs.run-tests == 'true' && ',tests' || '' }} \
-        --without-documentation
-      make
+        --without-documentation \
+        --with-build-dir=./custom-build-dir
+      make -f ./custom-build-dir/Makefile
 
   # Note: on Windows we assume the caller of the action is using MSYS2 with the
   # MINGW64 environment. We could make the action more general purpose, but then
   # we should make a few things configurable, like the shell and install
   # directory. For now, assuming MSYS2/MINGW64 is the most straightforward thing
   # to do.
   - name: "🛠️ [Windows]: Build Botan"
-    if: ${{ runner.os == 'Windows' }}
+    if: ${{ steps.cache-build-dir.outputs.cache-hit != 'true' && runner.os == 'Windows' }}
     shell: C:/msys64/usr/bin/bash.exe -e '{0}'
     working-directory: ./tmp-botan
     run: |
@@ -69,7 +83,16 @@ runs:
         --build-targets=static,shared,cli${{ inputs.run-tests == 'true' && ',tests' || '' }} \
         --without-documentation \
         --prefix="C:\msys64\mingw64"
-      make
+      make -f ./custom-build-dir/Makefile
+
+    ### Save cache ###
+
+  - name: 💾 Save build directory cache
+    uses: actions/cache/save@v4
+    if: ${{ !env.ACT && steps.cache-build-dir.outputs.cache-hit != 'true' }}
+    with:
+      path: "${{ github.workspace }}/.tmp-botan/custom-build-dir"
+      key: ${{ steps.cache-stylish-haskell.outputs.cache-primary-key }}
 
   ### Run tests ###
 
@@ -78,7 +101,7 @@ runs:
     shell: sh
     working-directory: ./tmp-botan
     run: |
-      make check
+      make -f ./custom-build-dir/Makefile check
 
   # TODO: on Windows, 'make check' will fail to start running the tests because
   # of wrong backwards/forward slashes in paths and calling the test executable
@@ -97,7 +120,7 @@ runs:
     shell: C:/msys64/usr/bin/bash.exe -e '{0}'
     working-directory: ./tmp-botan
     run: |
-      make check
+      make -f ./custom-build-dir/Makefile check
 
   ### Install ###
   #
@@ -116,7 +139,7 @@ runs:
     shell: sh
     working-directory: ./tmp-botan
     run: |
-      sudo make install
+      sudo make -f ./custom-build-dir/Makefile install
 
       # check install directories
       ls -la /usr/local/bin
@@ -132,7 +155,7 @@ runs:
     shell: C:/msys64/usr/bin/bash.exe -e '{0}'
     working-directory: ./tmp-botan
     run: |
-      make install
+      make -f ./custom-build-dir/Makefile install
 
       # check install directories
       ls -la C:/msys64/mingw64/bin