add build test

.github/workflows/pentoo-build-test.yaml

@@ -0,0 +1,26 @@
+name: Pentoo Build Test
+
+on:
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  pentoo-build-test:
+    runs-on: ubuntu-latest
+    steps:
+    -
+      name: Checkout
+      uses: actions/checkout@v5
+      with:
+        fetch-depth: 0
+    -
+      name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+    -
+      name: List added files
+      run: git diff-tree --no-commit-id --name-only -r ${{ github.sha }}
+    -
+      name: Pentoo Build Test
+      run: |
+        sudo docker build --progress=plain --build-arg github_sha="${{ github.sha }}" . -f scripts/qa/Dockerfile.build

scripts/qa/Dockerfile.build

@@ -0,0 +1,36 @@
+FROM pentoolinux/pentoo-full
+ARG github_sha
+# Setup repos
+WORKDIR /var/db/repos/
+# setup gentoo repo
+RUN git clone https://github.com/gentoo/gentoo.git --depth 1
+# setup pentoo repo
+#RUN git clone https://github.com/pentoo/pentoo-overlay.git pentoo --depth 1
+# Use the github checkout for pentoo, that's what we are testing
+COPY . pentoo
+
+#Regen doubles the time it takes for the action to run
+#Revisit if this is worth running when we have >2 emerge calls
+#RUN time FEATURES="-ipc-sandbox -network-sandbox -pid-sandbox" emerge --regen --jobs=$(nproc) --quiet
+
+# disable minimal (pentoo-core is default minimal)
+RUN sed -i 's# pentoo-minimal##' /etc/portage/make.conf
+
+WORKDIR /var/db/repos/pentoo
+
+RUN FAILED="0"; \
+for i in $(git diff-tree --no-commit-id --name-only -r ${github_sha}); do \
+  if [ "${i%.ebuild}" != "${i}" ]; then \
+    printf "%s looks like an ebuild, testing\n" "${i}"; \
+    if FEATURES="-ipc-sandbox -network-sandbox -pid-sandbox" emerge --getbinpkg=y --buildpkg=n --jobs=$(nproc) --load-average=$(nproc) --verbose "$(printf '%s' "${i%.ebuild}" | awk -F'/' '{print "="$1"/"$3}')" --pretend; then \
+      printf '%s appears to be unmasked, build testing' "${i}"; \
+      if FEATURES="-ipc-sandbox -network-sandbox -pid-sandbox" emerge --getbinpkg=y --buildpkg=n --jobs=$(nproc) --load-average=$(nproc) --verbose "$(printf '%s' "${i%.ebuild}" | awk -F'/' '{print "="$1"/"$3}')"; then \
+        printf '%s build SUCCESS\n' "${i}"; \
+      else \
+        printf '%s build FAILED\n' "${i}"; \
+        FAILED="1"; \
+      fi \
+    fi; \
+  fi; \
+done \
+exit "${FAILED}"