From 3b227a5f73127f976174c304f27093422176dab0 Mon Sep 17 00:00:00 2001
From: Hongze Cheng <hzcheng@taosdata.com>
Date: Tue, 21 Sep 2021 21:15:58 +0800
Subject: [PATCH] refact

---
 .gitignore                      |  3 +++
 CMakeLists.txt                  | 42 +++++++++++++++++++++++++++++++++
 cmake/deps_CMakeLists.txt.in    |  5 ++++
 cmake/gtest_CMakeLists.txt.in   | 12 ++++++++++
 deps/CMakeLists.txt             |  3 +++
 {src/os/inc => include/os}/os.h |  0
 src/CMakeLists.txt              | 24 +------------------
 7 files changed, 66 insertions(+), 23 deletions(-)
 create mode 100644 CMakeLists.txt
 create mode 100644 cmake/deps_CMakeLists.txt.in
 create mode 100644 cmake/gtest_CMakeLists.txt.in
 create mode 100644 deps/CMakeLists.txt
 rename {src/os/inc => include/os}/os.h (100%)

diff --git a/.gitignore b/.gitignore
index 2c37aa92f7..5141448ee0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -94,3 +94,6 @@ auto-save-list
 tramp
 .\#*
 TAGS
+
+deps/*
+!deps/CMakeLists.txt
\ No newline at end of file
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000000..307786b5ea
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,42 @@
+cmake_minimum_required(VERSION 3.16)
+
+project(
+    TDengine
+    VERSION 3.0
+    DESCRIPTION "An open-source big data platform designed and optimized for the Internet of Things(IOT)"
+)
+
+# ============================================================================
+# DEPENDENCIES
+# ============================================================================
+set(CMAKE_SUPPORT_DIR "${CMAKE_SOURCE_DIR}/cmake")
+
+function(cat IN_FILE OUT_FILE)
+    file(READ ${IN_FILE} CONTENTS)
+    file(APPEND ${OUT_FILE} "${CONTENTS}")
+endfunction(cat IN_FILE OUT_FILE)
+
+set(DEPS_TMP_FILE "${CMAKE_BINARY_DIR}/deps_tmp_CMakeLists.txt.in")
+configure_file("${CMAKE_SUPPORT_DIR}/deps_CMakeLists.txt.in" ${DEPS_TMP_FILE})
+
+## googletest
+option(BUILD_TEST "If build unit tests using googletest" ON)
+
+if(${BUILD_TEST})
+    cat("${CMAKE_SUPPORT_DIR}/gtest_CMakeLists.txt.in" ${DEPS_TMP_FILE})
+endif(${BUILD_TEST})
+
+## download dependencies
+configure_file(${DEPS_TMP_FILE} "${CMAKE_SOURCE_DIR}/deps/deps-download/CMakeLists.txt")
+execute_process(COMMAND "${CMAKE_COMMAND}" -G "${CMAKE_GENERATOR}" .
+        WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}/deps/deps-download")
+execute_process(COMMAND "${CMAKE_COMMAND}" --build .
+        WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}/deps/deps-download")
+
+# deps
+add_subdirectory(deps)
+
+# src
+add_subdirectory(src)
+
+# tests (TODO)
\ No newline at end of file
diff --git a/cmake/deps_CMakeLists.txt.in b/cmake/deps_CMakeLists.txt.in
new file mode 100644
index 0000000000..5f80321edf
--- /dev/null
+++ b/cmake/deps_CMakeLists.txt.in
@@ -0,0 +1,5 @@
+cmake_minimum_required(VERSION 3.8)
+
+project(deps-download NONE)
+
+include(ExternalProject)
\ No newline at end of file
diff --git a/cmake/gtest_CMakeLists.txt.in b/cmake/gtest_CMakeLists.txt.in
new file mode 100644
index 0000000000..ba4eaef8fb
--- /dev/null
+++ b/cmake/gtest_CMakeLists.txt.in
@@ -0,0 +1,12 @@
+
+# googletest
+ExternalProject_Add(googletest
+        GIT_REPOSITORY git@github.com:google/googletest.git
+        GIT_TAG master
+        SOURCE_DIR "${CMAKE_SOURCE_DIR}/deps/googletest"
+        BINARY_DIR "${CMAKE_BINARY_DIR}/googletest-build"
+        CONFIGURE_COMMAND ""
+        BUILD_COMMAND ""
+        INSTALL_COMMAND ""
+        TEST_COMMAND ""
+        )
\ No newline at end of file
diff --git a/deps/CMakeLists.txt b/deps/CMakeLists.txt
new file mode 100644
index 0000000000..2bb75b07c9
--- /dev/null
+++ b/deps/CMakeLists.txt
@@ -0,0 +1,3 @@
+if(${BUILD_TEST})
+    add_subdirectory(googletest)
+endif(${BUILD_TEST})
diff --git a/src/os/inc/os.h b/include/os/os.h
similarity index 100%
rename from src/os/inc/os.h
rename to include/os/os.h
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 273dc80cbb..8f8f3462dc 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,24 +1,2 @@
-# CMAKE_MINIMUM_REQUIRED(VERSION 2.8...3.20)
-PROJECT(TDengine)
-
-# Base compile
-ADD_SUBDIRECTORY(os)
-ADD_SUBDIRECTORY(common)
-ADD_SUBDIRECTORY(util)
-ADD_SUBDIRECTORY(tfs)
-ADD_SUBDIRECTORY(rpc)
-ADD_SUBDIRECTORY(client)
-ADD_SUBDIRECTORY(query)
-ADD_SUBDIRECTORY(kit)
-ADD_SUBDIRECTORY(plugins)
-ADD_SUBDIRECTORY(sync)
-ADD_SUBDIRECTORY(balance)
-ADD_SUBDIRECTORY(mnode)
-ADD_SUBDIRECTORY(vnode)
-ADD_SUBDIRECTORY(tsdb)
-ADD_SUBDIRECTORY(wal)
-ADD_SUBDIRECTORY(cq)
-ADD_SUBDIRECTORY(dnode)
-ADD_SUBDIRECTORY(connector/odbc)
-ADD_SUBDIRECTORY(connector/jdbc)
+add_subdirectory(os)