port to meson cargo

Use the new unstable meson cargo support. This simplifies the
meson.build script and allows to use crates such as clap that require
picking up features from Cargo.toml.

This also allows us to not embed thiserror in subprojects, and instead
use a wrap file with a custom meson.build and some patches to make it
compile without running its build.rs script.

.docker/Dockerfile

@@ -6,19 +6,22 @@ RUN getuto
 
 RUN emerge-webrsync
 
-RUN mkdir -p /var/cache/distfiles/git3-src && chown portage:portage /var/cache/distfiles/git3-src
-
-ENV EGIT_OVERRIDE_REPO_MESONBUILD_MESON=https://jturnerusa.dev/cgit/meson
-
 RUN emerge \
     =dev-lang/rust-bin-9999 \
-    =dev-build/meson-9999::gentoo \
     llvm-core/clang \
     llvm-core/lld \
     dev-vcs/git \
     sys-process/parallel \
     net-libs/nodejs
 
+RUN git clone https://jturnerusa.dev/cgit/ebuilds/ /var/db/repos/spawns
+
+COPY etc/portage/repos.conf /etc/portage/
+
+RUN mkdir -p /var/cache/distfiles/git3-src && chown portage:portage /var/cache/distfiles/git3-src
+
+RUN emerge =dev-build/meson-9999::spawns
+
 RUN useradd -m gentooligan
 
 USER gentooligan

.gitea/workflows/gentoo-utils.yml

@@ -22,48 +22,54 @@ jobs:
           key: gitea-repo-${{ gitea.repository }}-${{ gitea.ref }}
 
       - name: Checkout repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
-      - name: Detect Changes
-        uses: dorny/paths-filter@v3
+      - name: Check for changes before building
         id: image-changes
-        with:
-          filters: |
-            docker:
-              - ".docker/**"
-
-      - name: Metadata
-        id: metadata
+        # build image only if 1. changes are detected or 2. an image for the working branch doesnt exist
         run: |
           branch_name="${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}"
           default_branch_name="${{ gitea.event.repository.default_branch }}"
           image_tag=latest
-          if [[ $default_branch_name != $branch_name ]]; then
-            this_image_tag="$(echo "$branch_name" | sed -E 's/[^a-zA-Z0-9]/-/g')"
-            echo "steps... ${{ steps.image-changes.outputs.docker }}"
-            if [[ ${{ steps.image-changes.outputs.docker }} == true ]] || docker manifest inspect ${{ vars.REGISTRY_URL }}/${{ gitea.repository }}:${this_image_tag} >/dev/null 2>&1; then
-                image_tag=$this_image_tag
-            fi
-          else
+          comparison_hash="${{ gitea.event.before }}"
+
+          if [[ "$branch_name" != "$default_branch_name" ]]; then
+            image_tag=$branch_name
+          fi
+          # slugify
+          image_tag="$(echo "$image_tag" | sed -E 's/[^a-zA-Z0-9]/-/g')"
+
+          # rebase breaks gitea.event.before, so check to make sure the hash provided exists
+          if ! git merge-base --is-ancestor $comparison_hash $branch_name >/dev/null 2>&1; then
+            comparison_hash=$(git merge-base origin/$default_branch_name $branch_name)
+          fi
+            
+          if ! git diff $comparison_hash ${{ gitea.sha }} --no-patch --exit-code .docker; then
             build_image=true
+          else
+            if ! docker manifest inspect ${{ vars.REGISTRY_URL }}/${{ gitea.repository }}:${image_tag} >/dev/null 2>&1; then
+              build_image=true
+            else
+              build_image=false
+            fi
           fi
 
           echo "default_branch_name=$default_branch_name" >> $GITEA_OUTPUT
           echo "branch_name=$branch_name" >> $GITEA_OUTPUT
           echo "image_tag=$image_tag" >> $GITEA_OUTPUT
-          echo "build_image=${build_image:-${{ steps.image-changes.outputs.docker }}}" >> $GITEA_OUTPUT
+          echo "comparison_hash=$comparison_hash" >> $GITEA_OUTPUT
+          echo "build_image=$build_image" >> $GITEA_OUTPUT
           cat $GITEA_OUTPUT
-
       - name: Set up Docker buildx
-        if: steps.metadata.outputs.build_image == 'true'
+        if: steps.image-changes.outputs.build_image == 'true'
         uses: docker/setup-buildx-action@v3
         with:
           driver-opts: network=runners-net
 
       - name: Log in to Github Container Registry
-        if: steps.metadata.outputs.build_image == 'true'
+        if: steps.image-changes.outputs.build_image == 'true'
         uses: docker/login-action@v3
         with:
           registry: ${{ vars.REGISTRY_URL }}
@@ -71,58 +77,47 @@ jobs:
           password: ${{ secrets.CI_BOT_TOKEN }}
 
       - name: Build and push
-        if: steps.metadata.outputs.build_image == 'true'
+        if: steps.image-changes.outputs.build_image == 'true'
         uses: docker/build-push-action@v6
         with:
           push: true
-          tags: ${{ vars.REGISTRY_URL }}/${{ gitea.repository }}:${{ steps.metadata.outputs.image_tag }}
+          tags: ${{ vars.REGISTRY_URL }}/${{ gitea.repository }}:${{ steps.image-changes.outputs.image_tag }}
           context: "{{defaultContext}}:.docker"
           cache-from: type=gha
           cache-to: type=gha,mode=max
     outputs:
-      image_tag: ${{ steps.metadata.outputs.image_tag }}
+      image_tag: ${{ steps.image-changes.outputs.image_tag }}
 
   build:
-    runs-on: gentoo
+    runs-on: brutalisk
     env:
-      CC: "clang"
-      CXX: "clang++"
+      CC: 'clang'
+      CXX: 'clang++'
     needs: build-oci-image
     container:
       image: ${{ vars.REGISTRY_URL }}/${{ gitea.repository }}:${{ needs.build-oci-image.outputs.image_tag }}
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5
 
-        # TODO: This is currently unused by other jobs. I couldn't make meson not regenerate things regardless of
-        # the build dir already existing.
-      - name: Build Cache Setup
-        uses: actions/cache@v5
-        with:
-          path: |
-            subprojects
-            build
-          key: build-${{ gitea.repository }}-${{ gitea.sha }}
-
-      - name: Build
+      - name: build and check
         run: |
           meson setup -Dfuzz=enabled -Dtests=enabled -Dbuildtype=debugoptimized -Ddocs=enabled build
           meson compile -C build
 
-
   # FIXME: Currently this rebuilds everything. Instead we should bring over the build dir from the build job. This will come in handy
   # when we have multiple build targets and configs. What we have currently is fine until we get lots of builds going
   test:
-    runs-on: gentoo
+    runs-on: brutalisk
     env:
-      CC: "clang"
-      CXX: "clang++"
-    needs: [build-oci-image]
+      CC: 'clang'
+      CXX: 'clang++'
+    needs: [build-oci-image, build]
     container:
       image: ${{ vars.REGISTRY_URL }}/${{ gitea.repository }}:${{ needs.build-oci-image.outputs.image_tag }}
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5
 
       - name: test
         run: |
@@ -131,17 +126,17 @@ jobs:
           ninja test -C build
 
   fuzz:
-    runs-on: gentoo
+    runs-on: brutalisk
     env:
-      CC: "clang"
-      CXX: "clang++"
+      CC: 'clang'
+      CXX: 'clang++'
       FUZZER_TIMEOUT_S: 300
-    needs: [build-oci-image]
+    needs: [build-oci-image, build]
     container:
       image: ${{ vars.REGISTRY_URL }}/${{ gitea.repository }}:${{ needs.build-oci-image.outputs.image_tag }}
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5
 
       # FIXME: Get rid of this step when portage has fixes merged?
       # needed because portage has fixes upstream we need that arent stable yet
@@ -163,13 +158,13 @@ jobs:
         continue-on-error: true
 
   check-format:
-    runs-on: gentoo
+    runs-on: brutalisk
     needs: [build-oci-image]
     container:
       image: ${{ vars.REGISTRY_URL }}/${{ gitea.repository }}:${{ needs.build-oci-image.outputs.image_tag }}
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5
 
       - name: Check Formatting
         run: |
@@ -178,13 +173,13 @@ jobs:
           ninja rustfmt -C build
 
   docs:
-    runs-on: gentoo
+    runs-on: brutalisk
     needs: [build-oci-image]
     container:
       image: ${{ vars.REGISTRY_URL }}/${{ gitea.repository }}:${{ needs.build-oci-image.outputs.image_tag }}
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5
 
       - name: Build Documentation
         run: |
@@ -192,13 +187,13 @@ jobs:
           ninja rustdoc -C docs
 
   grep:
-    runs-on: gentoo
+    runs-on: brutalisk
     needs: [build-oci-image]
     container:
       image: ${{ vars.REGISTRY_URL }}/${{ gitea.repository }}:${{ needs.build-oci-image.outputs.image_tag }}
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v6
+        uses: actions/checkout@v5
 
       - name: grep for patterns
         # negate git grep ret code because 1 means no findings