First version (#1)

* Added toolchain and examples

* Final touches for first release

* Update README

* minor fix

Author: jadarve

.gitignore

@@ -0,0 +1,23 @@
+# SublimeText
+*.sublime-project
+*.sublime-workspace
+
+# Visual Studio Code
+.vscode/
+
+# Vulkan
+*.spv
+
+# Bazel
+bazel-*
+
+# CLion
+.clwb/
+
+local/
+
+# Bazel
+bazel-bin
+bazel-rules_lua
+bazel-out
+bazel-testlogs

BUILD

@@ -1,2 +1,46 @@
 # rules_lua
-Bazel rules for the Lua programming language
+
+Bazel rules for using the [Lua language](https://www.lua.org/).
+
+## Configuration
+
+Include the following configuration in your project's `WORKSPACE` file.
+
+```python
+load("@bazel_tools//tools/build_defs/repo:git.bzl", "git_repository")
+
+git_repository(
+    name = "rules_lua",
+    remote = "https://github.com/jadarve/rules_lua.git",
+    tag = "v0.0.1"
+)
+
+load("@rules_lua//toolchains:repositories.bzl", "lua_repositories")
+lua_repositories()
+```
+
+## Available targets
+
+### Lua interpreter
+
+It's possible to run the Lua interpreter directly:
+
+```bash
+bazel run @rules_lua//toolchains:lua 
+```
+
+### Lua compiler
+
+The compiler is avaialble as:
+
+```bash
+bazel run @rules_lua//toolchains:luac -- <compile options> 
+```
+
+### Lua C library
+
+Additionally, the C library is available as a dependency as `@rules_lua//cc:lua_cc_library` 
+
+## Examples
+
+See the [examples](examples) folder to see how to use the rules.

README.md

@@ -0,0 +1,3 @@
+workspace(
+    name = "rules_lua"
+)

WORKSPACE

@@ -0,0 +1,9 @@
+"""
+"""
+
+alias(
+    name = "lua_cc_library",
+    # TODO: select according to target lua version
+    actual = "@remote_lua53_repository//:lua_cc_library",
+    visibility = ["//visibility:public"]
+)

cc/BUILD

@@ -0,0 +1,11 @@
+workspace(
+    name = "rules_lua_examples"
+)
+
+local_repository(
+    name = "rules_lua",
+    path = ".."
+)
+
+load("@rules_lua//toolchains:repositories.bzl", "lua_repositories")
+lua_repositories()

examples/WORKSPACE

@@ -0,0 +1,14 @@
+"""
+"""
+
+alias(
+    name = "lua",
+    # FIXME: select according to target lua version
+    actual = "@remote_lua53_repository//:lua"
+)
+
+alias(
+    name = "luac",
+    # FIXME: select according to target lua version
+    actual = "@remote_lua53_repository//:luac"
+)

toolchains/BUILD

@@ -0,0 +1,60 @@
+"""
+"""
+
+load("@rules_cc//cc:defs.bzl", "cc_library", "cc_binary")
+
+cc_library (
+    name = "lua_cc_library",
+    srcs = glob(
+        ["src/*.c", "src/*.h", "src/*.hpp"],
+        exclude = ["src/lua.c", "src/luac.c"],
+    ),
+    hdrs = glob(["src/*.h", "src/*.hpp"]),
+    strip_include_prefix = "src",
+    linkstatic = True,
+    local_defines = select({
+        "@platforms//os:linux": [
+            "LUA_USE_LINUX"
+        ],
+        "//conditions:default": [
+        ]
+    }),
+    visibility = ["//visibility:public"],
+)
+
+cc_binary (
+    name = "lua",
+    srcs = ["src/lua.c"],
+    deps = [
+        ":lua_cc_library"
+    ],
+    linkstatic = True,
+    linkopts = select({
+        "@platforms//os:linux": [
+            "-lm",
+            "-ldl"
+        ],
+        "//conditions:default": [
+        ]
+    }),
+    visibility = ["//visibility:public"],
+)
+
+cc_binary (
+    name = "luac",
+    srcs = ["src/luac.c"],
+    deps = [
+        ":lua_cc_library"
+    ],
+    linkstatic = True,
+    linkopts = select({
+        "@platforms//os:linux": [
+            "-lm",
+            "-ldl"
+        ],
+        "//conditions:default": [
+
+        ]
+    }),
+    visibility = ["//visibility:public"],
+)

toolchains/lua.BUILD

@@ -0,0 +1,30 @@
+"""
+"""
+
+load("@bazel_tools//tools/build_defs/repo:utils.bzl", "maybe")
+load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
+
+
+def lua_repositories():
+    
+    maybe (
+        repo_rule = http_archive,
+        name = "remote_lua53_repository",
+        urls = [
+            "https://www.lua.org/ftp/lua-5.3.6.tar.gz"
+        ],
+        sha256 = "fc5fd69bb8736323f026672b1b7235da613d7177e72558893a0bdcd320466d60",
+        strip_prefix = "lua-5.3.6",
+        build_file = "@rules_lua//toolchains:lua.BUILD",
+    )
+    
+    maybe (
+        repo_rule = http_archive,
+        name = "remote_lua54_repository",
+        urls = [
+            "https://www.lua.org/ftp/lua-5.4.4.tar.gz"
+        ],
+        sha256 = "164c7849653b80ae67bec4b7473b884bf5cc8d2dca05653475ec2ed27b9ebf61",
+        strip_prefix = "lua-5.4.4",
+        build_file = "@rules_lua//toolchains:lua.BUILD",
+    )