CMake support scripts

.pre-commit-config.yaml

@@ -1,13 +1,6 @@
 default_language_version:
   python: python3
 
-exclude: |
-  (?x)^(
-    tools/.*py|
-    build/cache.py|
-    build/common_compiler_flags.py
-  )
-
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
     rev: v0.7.3

README.md

@@ -1,13 +1,39 @@
 # OpenVicProject/scripts
-Common Scons scripts repo for the [OpenVicProject repos](https://github.com/OpenVicProject)
-
-## Required
-* [scons](https://scons.org/)
-
-## Usage
-1. Call `env.SetupOptions()` and use the return value to add your options:
-    ```py
-    opts = env.SetupOptions()
-    opts.Add(BoolVariable("example", "Is an example", false))
-    ```
-2. When options are finished call `env.FinalizeOptions()` then setup your scons script using env.
+
+Shared CMake helpers for the [OpenVicProject repos](https://github.com/OpenVicProject)
+(OpenVic, openvic-simulation, openvic-dataloader, lexy-vdf).
+
+
+Each consuming repo fetches this repo as a **pinned FetchContent tarball**
+
+```cmake
+if(NOT COMMAND openvic_setup_base_flags)
+    include(FetchContent)
+    FetchContent_Declare(
+        openvic_scripts
+        URL "https://github.com/OpenVicProject/scripts/archive/<SHA>.tar.gz"
+        URL_HASH SHA256=<SHA256>
+    )
+    FetchContent_MakeAvailable(openvic_scripts)
+    include("${openvic_scripts_SOURCE_DIR}/cmake/OpenVicScripts.cmake")
+endif()
+```
+
+## Bumping the pin in a consuming repo
+
+After a change lands on `master` here:
+
+1. Note the new commit SHA.
+2. Compute the tarball hash:
+   ```sh
+   curl -sL https://github.com/OpenVicProject/scripts/archive/<SHA>.tar.gz | sha256sum
+   ```
+3. In the consumer's root `CMakeLists.txt` bootstrap block, update the `URL`
+   SHA and the `URL_HASH SHA256=` value.
+
+To test uncommitted changes to this repo from a consumer, configure the
+consumer with:
+
+```sh
+cmake --preset <preset> -DFETCHCONTENT_SOURCE_DIR_OPENVIC_SCRIPTS=<path-to-this-checkout>
+```