Add example of downloading rerun c++ lib via pixi

Author: traversaro

.github/workflows/cpp.yml

@@ -14,4 +14,7 @@ jobs:
           pixi-version: v0.25.0
           cache: true
 
-      - run: pixi run build
+      - name: run build task on all environments
+        run: |
+          pixi run -e default build
+          pixi run -e rerunfindpackage build

.gitignore

@@ -1,5 +1,6 @@
-# Build directory
+# Build directories
 build
+buildrerunfindpackage
 
 # Pixi environment
 .pixi

README.md

@@ -16,8 +16,11 @@ This is a minimal CMake project that shows how to use [Rerun](https://github.com
 The easiest way to get started is to install [pixi](https://prefix.dev/docs/pixi/overview).
 
 The pixi environment described in `pixi.toml` contains all of the dependencies, including the rerun viewer,
-allowing you to run the example with a single command:
-* `pixi run example`
+allowing you to run the example with a single command, while the rerun C++ SDK is downloaded via `FetchContent`
+* `pixi run -e default example`
+
+If you want to also download rerun C++ SDK via pixi, you can run:
+* `pixi run -e rerundfindpackage example`
 
 ## Without `pixi`
 If you choose not to use pixi, you will need to install a few things yourself before you get started.

pixi.lock

@@ -28,7 +28,7 @@ clean = { cmd = "rm -rf build bin CMakeFiles/" }
 print-env = { cmd = "echo $PATH" }
 
 [target.win-64.tasks]
-prepare = "cmake -G 'Visual Studio 17 2022' -B build -S . -DCMAKE_BUILD_TYPE=RelWithDebInfo"
+prepare = "cmake -G 'Visual Studio 17 2022' -B build -S . -DCMAKE_BUILD_TYPE=RelWithDebInfo -DRERUN_FIND_PACKAGE:BOOL=OFF"
 build = { cmd = "cmake --build build --config RelWithDebInfo", depends_on = [
     "prepare",
 ] }
@@ -37,13 +37,33 @@ example = { cmd = "build/RelWithDebInfo/rerun_ext_example.exe", depends_on = [
 ] }
 
 [target.unix.tasks]
-prepare = "cmake -G 'Ninja' -B build -S . -DCMAKE_BUILD_TYPE=RelWithDebInfo"
+prepare = "cmake -G 'Ninja' -B build -S . -DCMAKE_BUILD_TYPE=RelWithDebInfo -DRERUN_FIND_PACKAGE:BOOL=OFF"
 build = { cmd = "cmake --build build --config RelWithDebInfo --target all", depends_on = [
     "prepare",
 ] }
 example = { cmd = "build/rerun_ext_example", depends_on = ["build"] }
 format = { cmd = "clang-format -i src/*" }
 
+[feature.rerunfindpackage.target.win-64.tasks]
+prepare = "cmake -G 'Visual Studio 17 2022' -B buildrerunfindpackage -S . -DCMAKE_BUILD_TYPE=RelWithDebInfo -DRERUN_FIND_PACKAGE:BOOL=ON"
+build = { cmd = "cmake --build buildrerunfindpackage --config RelWithDebInfo", depends_on = [
+    "prepare",
+] }
+example = { cmd = "buildrerunfindpackage/RelWithDebInfo/rerun_ext_example.exe", depends_on = [
+    "build",
+] }
+
+[feature.rerunfindpackage.target.unix.tasks]
+prepare = "cmake -G 'Ninja' -B buildrerunfindpackage -S . -DCMAKE_BUILD_TYPE=RelWithDebInfo -DRERUN_FIND_PACKAGE:BOOL=ON"
+build = { cmd = "cmake --build buildrerunfindpackage --config RelWithDebInfo --target all", depends_on = [
+    "prepare",
+] }
+example = { cmd = "buildrerunfindpackage/rerun_ext_example", depends_on = [
+    "build",
+] }
+format = { cmd = "clang-format -i src/*" }
+
+
 [dependencies]
 # Build tools:
 clang-tools = ">=15,<16" # clang-format
@@ -63,3 +83,12 @@ ninja = "1.11.1"
 [target.win-64.dependencies]
 # Build tools:
 vs2022_win-64 = "19.37.32822"
+
+[feature.rerunfindpackage.dependencies]
+librerun-sdk = "0.17.0.*"
+
+[environments]
+default = { solve-group = "defaultgroup" }
+rerunfindpackage = { features = [
+    "rerunfindpackage",
+], solve-group = "defaultgroup" }