通过源代码编译来安装 Redis ，在自己的机器上搭建一套可以 Debug 的 Redis 源码环境。
推荐在 Linux 或者 MacOS 上Debug。

(1) 调试环境准备

下载源码
安装C语言GCC编译器
通过源码编码Redis源码
启动Redis开始Debug

(1.1) 下载源码

git clone https://github.com/redis/redis.git

(1.2) GCC编译器

编译之前，需要安装一些依赖，Redis 是 C 语言编写的，需要 gcc 编译器。

[weikeqin@MacBookPro ~ ]$ gcc -v
Apple clang version 14.0.3 (clang-1403.0.22.14.1)
Target: x86_64-apple-darwin22.5.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin
[weikeqin@MacBookPro ~ ]$

(1.3) 源码安装

make命令会执行Makefile文件里准备的命令，主要是编译、链接等。
make命令可以指定参数
-O0 参数表示告诉编译器不要优化代码，防止在 Debug 的时候， IDE Redis 源码与实际运行的对应不上。
MALLOC=jemalloc ，Mac OS 系统Redis默认内存分配器是libc，通过 MALLOC=jemalloc 指定使用 jemalloc 内存分配器

[weikeqin@MacBookPro redis (6.0 <) ]$ pwd
/Users/weikeqin/Workspaces/middleware/redis
[weikeqin@MacBookPro redis (6.0 <) ]$ 
[weikeqin@MacBookPro redis (6.0 <) ]$ make CFLAGS="-g -O0" MALLOC=jemalloc 
cd src && /Library/Developer/CommandLineTools/usr/bin/make all
/bin/sh: pkg-config: command not found
    CC Makefile.dep
/bin/sh: pkg-config: command not found
rm -rf redis-server redis-sentinel redis-cli redis-benchmark redis-check-rdb redis-check-aof *.o *.gcda *.gcno *.gcov redis.info lcov-html Makefile.dep dict-benchmark
rm -f adlist.d quicklist.d ae.d anet.d dict.d server.d sds.d zmalloc.d lzf_c.d lzf_d.d pqsort.d zipmap.d sha1.d ziplist.d release.d networking.d util.d object.d db.d replication.d rdb.d t_string.d t_list.d t_set.d t_zset.d t_hash.d config.d aof.d pubsub.d multi.d debug.d sort.d intset.d syncio.d cluster.d crc16.d endianconv.d slowlog.d scripting.d bio.d rio.d rand.d memtest.d crcspeed.d crc64.d bitops.d sentinel.d notify.d setproctitle.d blocked.d hyperloglog.d latency.d sparkline.d redis-check-rdb.d redis-check-aof.d geo.d lazyfree.d module.d evict.d expire.d geohash.d geohash_helper.d childinfo.d defrag.d siphash.d rax.d t_stream.d listpack.d localtime.d lolwut.d lolwut5.d lolwut6.d acl.d gopher.d tracking.d connection.d tls.d sha256.d timeout.d setcpuaffinity.d mt19937-64.d anet.d adlist.d dict.d redis-cli.d zmalloc.d release.d ae.d crcspeed.d crc64.d siphash.d crc16.d mt19937-64.d ae.d anet.d redis-benchmark.d adlist.d dict.d zmalloc.d siphash.d mt19937-64.d
(cd ../deps && /Library/Developer/CommandLineTools/usr/bin/make distclean)
(cd hiredis && /Library/Developer/CommandLineTools/usr/bin/make clean) > /dev/null || true
(cd linenoise && /Library/Developer/CommandLineTools/usr/bin/make clean) > /dev/null || true
(cd lua && /Library/Developer/CommandLineTools/usr/bin/make clean) > /dev/null || true
(cd jemalloc && [ -f Makefile ] && /Library/Developer/CommandLineTools/usr/bin/make distclean) > /dev/null || true


9 warnings generated.
    LINK redis-benchmark
    INSTALL redis-check-rdb
    INSTALL redis-check-aof

Hint: It's a good idea to run 'make test' ;)

[weikeqin@MacBookPro redis (6.0 <) ]$  
[weikeqin@MacBookPro redis (6.0 <) ]$

make完可以在src目录看到编译链接后的redis-server文件

(1.4) 启动redis-server

/Users/weikeqin/Workspaces/middleware/redis/src/redis-server /Users/weikeqin/Workspaces/middleware/redis/redis.conf
43277:C 22 Jul 2023 15:25:22.277 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
43277:C 22 Jul 2023 15:25:22.277 # Redis version=6.0.20, bits=64, commit=de0d9632, modified=0, pid=43277, just started
43277:C 22 Jul 2023 15:25:22.277 # Configuration loaded
                _._                                                  
           _.-``__ ''-._                                             
      _.-``    `.  `_.  ''-._           Redis 6.0.20 (de0d9632/0) 64 bit
  .-`` .-```.  ```\/    _.,_ ''-._                                   
 (    '      ,       .-`  | `,    )     Running in standalone mode
 |`-._`-...-` __...-.``-._|'` _.-'|     Port: 6379
 |    `-._   `._    /     _.-'    |     PID: 43277
  `-._    `-._  `-./  _.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |           http://redis.io        
  `-._    `-._`-.__.-'_.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |                                  
  `-._    `-._`-.__.-'_.-'    _.-'                                   
      `-._    `-.__.-'    _.-'                                       
          `-._        _.-'                                           
              `-.__.-'                                               

43277:M 22 Jul 2023 15:25:22.282 # Server initialized
43277:M 22 Jul 2023 15:25:22.283 * Ready to accept connections