build(pixi): package plotjuggler_sdk as a conda package + prefix.dev publish

.github/workflows/conda-release.yml

@@ -0,0 +1,72 @@
+name: conda-release
+
+# Build + publish the SDK conda package to the prefix.dev "plotjuggler" channel
+# on tag push. Requires repo secret PREFIX_API_KEY = a prefix.dev token with
+# write access to the "plotjuggler" channel.
+on:
+  push:
+    tags:
+      - "v*"
+  # Manual dispatch builds the current conanfile.py/recipe.yaml version (no tag
+  # guard); idempotent via `rattler-build upload --skip-existing`.
+  workflow_dispatch: {}
+
+permissions:
+  contents: read
+
+jobs:
+  build-and-upload:
+    name: ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-22.04]   # extend to macos-15-intel, windows-2022 in a later task
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Verify tag matches all version sources
+        if: startsWith(github.ref, 'refs/tags/v')
+        shell: bash
+        run: |
+          tag="${GITHUB_REF_NAME#v}"
+          # The SDK version is hardcoded in three places that must agree with the tag:
+          #   conanfile.py  version = "..."           (Conan package + the tag guard)
+          #   recipe.yaml   context.version "..."     (embedded in the published .conda)
+          #   CMakeLists.txt PJ_PACKAGE_VERSION "..." (baked into ConfigVersion.cmake,
+          #                                            matched by find_package(... <ver>))
+          conan_ver="$(grep -E '^\s*version\s*=' conanfile.py | head -1 | sed -E 's/.*"(.*)".*/\1/')"
+          recipe_ver="$(grep -E '^[[:space:]]+version:[[:space:]]*"' recipe.yaml | head -1 | sed -E 's/.*"(.*)".*/\1/')"
+          cmake_ver="$(grep -E 'set\(PJ_PACKAGE_VERSION' CMakeLists.txt | head -1 | sed -E 's/.*"(.*)".*/\1/')"
+          echo "tag=$tag  conanfile.py=$conan_ver  recipe.yaml=$recipe_ver  CMakeLists.txt=$cmake_ver"
+          fail=0
+          for pair in "conanfile.py:$conan_ver" "recipe.yaml:$recipe_ver" "CMakeLists.txt:$cmake_ver"; do
+            if [ "$tag" != "${pair#*:}" ]; then
+              echo "::error::Tag v$tag does not match ${pair%%:*} version (${pair#*:})"
+              fail=1
+            fi
+          done
+          [ "$fail" -eq 0 ]
+
+      - name: Install rattler-build
+        uses: prefix-dev/rattler-build-action@v0.2.38
+        with:
+          setup-only: true
+          rattler-build-version: v0.66.2
+
+      - name: Build conda package
+        shell: bash
+        run: |
+          rattler-build build \
+            --recipe recipe.yaml \
+            --channel conda-forge \
+            --output-dir "${{ runner.temp }}/conda-output"
+
+      - name: Upload to prefix.dev (plotjuggler)
+        shell: bash
+        env:
+          PREFIX_API_KEY: ${{ secrets.PREFIX_API_KEY }}
+        run: |
+          find "${{ runner.temp }}/conda-output" -name '*.conda' -print0 \
+            | xargs -0 rattler-build upload prefix --channel plotjuggler --skip-existing

.gitignore

@@ -9,3 +9,6 @@ pj_media/testdata/
 /.vscode/*
 /CMakeUserPresets.json
 /aqtinstall.log
+/.pixi/
+/output/
+/build-test/