xo-jit: + README

README.md

@@ -0,0 +1,57 @@
+# xo-jit library
+
+A library for representing abstract syntax trees for EGAD (a small jit-based language).
+
+## Getting Started
+
+### build + install `xo-cmake` dependency
+
+- [github/Rconybea/xo-cmake](https://github.com/Rconybea/xo-cmake)
+
+Installs a few cmake ingredients,  along with a build assistant `xo-build` for XO projects such as this one.
+
+### build + install other necessary XO dependencies
+```
+$ xo-build --clone --configure --build --install xo-indentlog
+$ xo-build --clone --configure --build --install xo-refnct
+$ xo-build --clone --configure --build --install xo-subsys
+$ xo-build --clone --configure --build --install xo-reflect
+$ xo-build --clone --configure --build --install xo-expression
+```
+
+Note: can use `xo-build -n` to dry-run here
+
+### copy `xo-jit` repository locally
+```
+$ xo-build --clone xo-jit
+```
+
+or equivalently
+```
+$ git clone git@github.com:Rconybea/xo-jit.git
+```
+
+### build + install xo-jit
+```
+$ xo-build --configure --build --install xo-jit
+```
+
+or equivalently:
+```
+$ PREFIX=/usr/local  # or wherever you prefer
+$ cmake -DCMAKE_INSTALL_PREFIX=${PREFIX} -S xo-jit -B xo-jit/.build
+$ cmake --build xo-jit/.build
+$ cmake --install xo-jit/.build
+```
+
+### build for unit test coverage
+```
+$ cmake -DCMAKE_BUILD_TYPE=coverage -DCMAKE_INSTALL_PREFIX=$PREFIX xo-jit/.build-ccov
+$ cmake --build xo-jit/.build-ccov
+```
+
+### LSP support
+```
+$ cd xo-jit
+$ ln -s build/compile_commands.json  # lsp will look for compile_commands.json in the root of the source tree
+```