Add lz4 module definition (#998)

modules/lz4/1.9.4/MODULE.bazel

@@ -0,0 +1,6 @@
+module(
+    name = "lz4",
+    version = "1.9.4",
+    compatibility_level = 1,
+)
+bazel_dep(name = "rules_cc", version = "0.0.1")

modules/lz4/1.9.4/patches/add_build_file.patch

@@ -0,0 +1,62 @@
+--- /dev/null
++++ BUILD.bazel
+@@ -0,0 +1,59 @@
++""" Builds lz4.
++"""
++
++load("@rules_cc//cc:defs.bzl", "cc_library")
++
++cc_library(
++    name = "lz4",
++    srcs = [
++        "lib/lz4.c",
++        "lib/xxhash.c",
++        "lib/xxhash.h",
++    ],
++    hdrs = [
++        "lib/lz4.h",
++    ],
++    strip_include_prefix = "lib/",
++    visibility = ["//visibility:public"],
++)
++
++cc_library(
++    name = "lz4_lz4c_include",
++    hdrs = [
++        "lib/lz4.c",
++    ],
++    strip_include_prefix = "lib/",
++)
++
++cc_library(
++    name = "lz4_hc",
++    srcs = [
++        "lib/lz4hc.c",
++    ],
++    hdrs = [
++        "lib/lz4hc.h",
++    ],
++    strip_include_prefix = "lib/",
++    visibility = ["//visibility:public"],
++    deps = [
++        ":lz4",
++        ":lz4_lz4c_include",
++    ],
++)
++
++cc_library(
++    name = "lz4_frame",
++    srcs = [
++        "lib/lz4frame.c",
++        "lib/lz4frame_static.h",
++    ],
++    hdrs = [
++        "lib/lz4frame.h",
++    ],
++    strip_include_prefix = "lib/",
++    visibility = ["//visibility:public"],
++    deps = [
++        ":lz4",
++        ":lz4_hc",
++    ],
++)

modules/lz4/1.9.4/patches/module_dot_bazel.patch

@@ -0,0 +1,9 @@
+--- MODULE.bazel
++++ MODULE.bazel
+@@ -0,0 +1,6 @@
++module(
++    name = "lz4",
++    version = "1.9.4",
++    compatibility_level = 1,
++)
++bazel_dep(name = "rules_cc", version = "0.0.1")

modules/lz4/1.9.4/presubmit.yml

@@ -0,0 +1,13 @@
+matrix:
+  platform:
+    - debian10
+    - ubuntu2004
+    - macos
+    - macos_arm64
+    - windows
+tasks:
+  verify_targets:
+    name: Verify build targets
+    platform: ${{ platform }}
+    build_targets:
+      - "@lz4//:lz4"

modules/lz4/1.9.4/source.json

@@ -0,0 +1,10 @@
+{
+    "url": "https://github.com/lz4/lz4/releases/download/v1.9.4/lz4-1.9.4.tar.gz",
+    "integrity": "sha256-Cw46oHyMBj3fQLCCvffjehVivaQKD/UnKVfz6Yfg5Us=",
+    "strip_prefix": "lz4-1.9.4",
+    "patches": {
+        "add_build_file.patch": "sha256-v1zbuA4Ya6cX2rDv54qh/8kwM7dimnWuyg40vCik4FM=",
+        "module_dot_bazel.patch": "sha256-V8GT+T9/zjsD3c67mJ4qVJoOkR4VZlXnpXl6b/FKI/Y="
+    },
+    "patch_strip": 0
+}

modules/lz4/metadata.json

@@ -0,0 +1,11 @@
+{
+    "homepage": "https://github.com/lz4/lz4",
+    "maintainers": [],
+    "repository": [
+        "github:lz4/lz4"
+    ],
+    "versions": [
+        "1.9.4"
+    ],
+    "yanked_versions": {}
+}