feat : support xmake build

tutorial/xmake.lua

@@ -0,0 +1,49 @@
+set_group("tutorial")
+set_default(false)
+
+if not is_os("macosx") then
+    add_ldflags("-lrt")
+end
+
+add_links("crypto")
+add_links("ssl")
+
+add_includedirs(get_config("workflow_inc"))
+
+function all_examples()
+    local res = {}
+    for _, x in ipairs(os.files("*.cc")) do
+        local item = {}
+        local s = path.filename(x)
+        if((s == "upstream_unittest.cc" and get_config("upstream") == false) or
+           ((s == "tutorial-02-redis_cli.cc" or s == "tutorial-03-wget_to_redis.cc") and get_config("redis") == false) or
+           (s == "tutorial-12-mysql_cli.cc" and get_config("mysql") == false) or
+           (s == "tutorial-14-consul_cli.cc" and get_config("consul") == false) or
+           (s == "tutorial-13-kafka_cli.cc")) then
+        else
+            table.insert(item, s:sub(1, #s - 3))       -- target
+            table.insert(item, path.relative(x, "."))  -- source
+            table.insert(res, item)
+        end
+    end
+    return res
+end
+
+for _, example in ipairs(all_examples()) do
+target(example[1])
+    set_kind("binary")
+    add_files(example[2])
+    add_deps("workflow")
+end
+
+target("tutorial-13-kafka_cli")
+    if (get_config("kafka") == true) then
+        set_kind("binary")
+        add_files("tutorial-13-kafka_cli.cc")
+        add_packages("zlib", "snappy", "zstd", "lz4")
+        add_deps("wfkafka")
+    else
+        set_kind("phony")
+    end
+
+includes("tutorial-10-user_defined_protocol", "tutorial-16-graceful_restart")