[robotpy][examples] Split examples and snippets (#8944)

This also updates the bazel scripts to behave more like the C++ and Java
examples, and updates the copybara scripts to be able to sync up
`mostrobotpy`

robotpyExamples/BUILD.bazel

@@ -2,7 +2,7 @@ load("@allwpilib_pip_deps//:requirements.bzl", "requirement")
 load("@aspect_bazel_lib//lib:write_source_files.bzl", "write_source_file")
 load("@rules_python//python:defs.bzl", "py_binary")
 load("@rules_python//python/entry_points:py_console_script_binary.bzl", "py_console_script_binary")
-load(":define_examples.bzl", "define_examples")
+load(":define_examples.bzl", "define_examples", "define_snippets")
 
 py_binary(
     name = "generate_bazel_files",
@@ -22,7 +22,8 @@ cmd = "$(locations :generate_bazel_files) $(OUTS)"
 genrule(
     name = "generate_bazel_files_rule",
     srcs = [
-        "examples.toml",
+        "examples/examples.toml",
+        "snippets/snippets.toml",
     ],
     outs = ["gen/example_projects.bzl"],
     cmd = cmd,
@@ -45,3 +46,5 @@ py_console_script_binary(
 )
 
 define_examples()
+
+define_snippets()

robotpyExamples/define_examples.bzl

@@ -1,9 +1,9 @@
 load("@allwpilib_pip_deps//:requirements.bzl", "requirement")
 load("@rules_python//python:defs.bzl", "py_binary", "py_test")
-load("//robotpyExamples:example_projects.bzl", "PROJECTS")
+load("//robotpyExamples:example_projects.bzl", "EXAMPLE_PROJECTS", "SNIPPET_PROJECTS")
 
-def define_examples():
-    for example_folder in PROJECTS:
+def _define_robot_project(projects, project_type):
+    for example_folder in projects:
         base_name = example_folder.replace("/", "_")
         common_kwargs = dict(
             srcs = [":robotpy_entry_point.py"],
@@ -42,3 +42,9 @@ def define_examples():
             deps = common_deps + ["//simulation/halsim_gui:robotpy-halsim-gui"],
             **common_kwargs
         )
+
+def define_examples():
+    _define_robot_project(EXAMPLE_PROJECTS, "example")
+
+def define_snippets():
+    _define_robot_project(SNIPPET_PROJECTS, "snippet")

robotpyExamples/example_projects.bzl

@@ -1,51 +1,53 @@
-PROJECTS = [
-    "AddressableLED",
-    "AprilTagsVision",
-    "ArcadeDrive",
-    "ArcadeDriveXboxController",
-    "ArmSimulation",
-    "CANPDP",
-    "DifferentialDriveBot",
-    "DifferentialDrivePoseEstimator",
-    "DigitalCommunication",
-    "DriveDistanceOffboard",
-    "DutyCycleEncoder",
-    "DutyCycleInput",
-    "ElevatorExponentialProfile",
-    "ElevatorExponentialSimulation",
-    "ElevatorProfiledPID",
-    "ElevatorSimulation",
-    "ElevatorTrapezoidProfile",
-    "Encoder",
-    "EventLoop",
-    "FlywheelBangBangController",
-    "GettingStarted",
-    "Gyro",
-    "HatchbotInlined",
-    "HatchbotTraditional",
-    "HttpCamera",
-    "I2CCommunication",
-    "IntermediateVision",
-    "MecanumBot",
-    "MecanumDrive",
-    "MecanumDrivePoseEstimator",
-    "Mechanism2d",
-    "MotorControl",
-    "QuickVision",
-    "RapidReactCommandBot",
-    "RomiReference",
-    "SelectCommand",
-    "SimpleDifferentialDriveSimulation",
-    "Solenoid",
-    "StateSpaceArm",
-    "StateSpaceElevator",
-    "StateSpaceFlywheel",
-    "StateSpaceFlywheelSysId",
-    "SwerveBot",
-    "SwerveDrivePoseEstimator",
-    "SysId",
-    "TankDrive",
-    "TankDriveXboxController",
-    "UnitTest",
-    "XrpReference",
+EXAMPLE_PROJECTS = [
+    "examples/ArcadeDrive",
+    "examples/ArcadeDriveXboxController",
+    "examples/ArmSimulation",
+    "examples/DifferentialDriveBot",
+    "examples/DifferentialDrivePoseEstimator",
+    "examples/DriveDistanceOffboard",
+    "examples/DutyCycleEncoder",
+    "examples/ElevatorExponentialProfile",
+    "examples/ElevatorExponentialSimulation",
+    "examples/ElevatorProfiledPID",
+    "examples/ElevatorSimulation",
+    "examples/ElevatorTrapezoidProfile",
+    "examples/Encoder",
+    "examples/GettingStarted",
+    "examples/Gyro",
+    "examples/HatchbotInlined",
+    "examples/HatchbotTraditional",
+    "examples/MecanumBot",
+    "examples/MecanumDrive",
+    "examples/MecanumDrivePoseEstimator",
+    "examples/Mechanism2d",
+    "examples/RapidReactCommandBot",
+    "examples/RomiReference",
+    "examples/SimpleDifferentialDriveSimulation",
+    "examples/StateSpaceArm",
+    "examples/StateSpaceElevator",
+    "examples/StateSpaceFlywheel",
+    "examples/StateSpaceFlywheelSysId",
+    "examples/SwerveBot",
+    "examples/SwerveDrivePoseEstimator",
+    "examples/SysId",
+    "examples/TankDrive",
+    "examples/TankDriveXboxController",
+    "examples/UnitTest",
+    "examples/XrpReference",
+]
+SNIPPET_PROJECTS = [
+    "snippets/AddressableLED",
+    "snippets/AprilTagsVision",
+    "snippets/CANPDP",
+    "snippets/DigitalCommunication",
+    "snippets/DutyCycleInput",
+    "snippets/EventLoop",
+    "snippets/FlywheelBangBangController",
+    "snippets/HttpCamera",
+    "snippets/I2CCommunication",
+    "snippets/IntermediateVision",
+    "snippets/MotorControl",
+    "snippets/QuickVision",
+    "snippets/SelectCommand",
+    "snippets/Solenoid",
 ]