git学习笔记 二

1、git学习笔记 二第五：对于对象的理解和实例分析 rootlocalhost /git/ rootlocalhost git object rootlocalhost object vim main.c hello wnayan! rootlocalhost object git hash-object main.c /计算main.c的哈希值 d32fe487dc38cbfc7fe051a5d6dbae01551d8dbd rootlocalhost object git init initializ empty git repository in /git/object/.git/ roo

2、tlocalhost object git a . 以下这个文件（blob）就是保存mia.c内容的文件 rootlocalhost object ll .git/objects/d3/ total 8 -r-r-r- 1 root root 30 nov 27 04:02 2fe487dc38cbfc7fe051a5d6dbae01551d8dbd rootlocalhost object git commit -m 1st commint master (root-commit) da97249 1st commint 1 s changed, 1 insertions(+), 0 del

3、etions(-) create mode 100644 main.c rootlocalhost object .git/objects/ -type f /列出文件夹下的一般文件 .git/objects/ae/eedc3b20507db9600f7f72431557fcf9303252 .git/objects/d3/2fe487dc38cbfc7fe051a5d6dbae01551d8dbd .git/objects/da/97249d3649b1770b5cec8fa515833ea596f26f rootlocalhost object git show d32f /查看blob的

4、内容，就是main.c的一样的内容 hello wnayan! rootlocalhost object git -file -t aeeedc /这三句是查看object的类型 ee rootlocalhost object git cat-file -t da97 commit rootlocalhost object git cat-file -t d32f blob 以上三种对象中保存文件的名字，blob保存文件的内容，这种结构有利于两个内容相同但是名字不同的文件的保存（tree保存两个名字，blob保存一份内容就可以了） rootlocalhost object git -tree

5、aeee /列出tree和blob的对应关系 100644 blob d32fe487dc38cbfc7fe051a5d6dbae01551d8dbd main.c rootlocalhost object git show -s -pretty=raw da97 /查看commit的内容，关系很明确 commit da97249d3649b1770b5cec8fa515833ea596f26f tree aeeedc3b20507db9600f7f72431557fcf9303252 author ethnicitybeta ethnicitybeta 1322337880 +0800 co

6、mmitter ethnicitybeta ethnicitybeta 1322337880 +0800 1st commint 第六：多层名目的实例 rootlocalhost / mkdir -p /git/wanyan rootlocalhost / cd /git/wanyan/ rootlocalhost wanyan cat readme just test! rootlocalhost wanyan cat lib/comment ilude rootlocalhost wanyan cat lib/include/main.c main rootlocalhost wanyan

7、 git init initialized empty git repository in /git/wanyan/.git/ rootlocalhost wanyan git add . rootlocalhost wanyan git commit -m 1st version master (root-commit) 206ecf2 1st version 3 files changed, 3 insertions(+), 0 deletions(-) create mode 100644 readme create mode 100644 lib/comment create mode

8、 100644 lib/include/main.c rootlocalhost wanyan find .git/objects/ -type f /查看生成的对象 .git/objects/03/e86fb4437c4153cec24aa4021dca582abc0558 .git/objects/56/2f7710be64f9309a9fe6aa529753953dbe7e47 .git/objects/20/6ecf269d0f540995d88d6be825fecb09b5d3eb .git/objects/8f/006adb88a619f20442a9eb3148cff31691e

9、af0 .git/objects/ba/2906d0666cf726c7eaadd2cd3db615dedf3a .git/objects/90/48a2fd8c21a70a2dffcf80c819eee2fb491a31 .git/objects/a1/a869c8c840478164594a788ae5ce38dc0ee6da rootlocalhost wanyan git cat-file -t 03e8 /可以通过这个依次查看对象的类型 tree rootlocalhost wanyan ll .git/head -rw-r-r- 1 root root 23 nov 27 04:2

10、3 .git/head /当前用法的commit是master rootlocalhost wanyan cat .git/head ref: refs/heads/master rootlocalhost wanyan cat .git/refs/heads/master 206ecf269d0f540995d88d6be825fecb09b5d3eb rootlocalhost wanyan git cat-file -t 206e commit 接下来就是修改随意的文件，来生成第多个版本的测试 rootlocalhost wanyan cd lib/ rootlocalhost lib

11、cat comment include change rootlocalhost wanyan git commit -a -m 2nd commit /这个指令是那两个指令的综合 master a7772df 2nd commit 1 files changed, 1 insertions(+), 0 deletions(-) rootlocalhost wanyan find .git/objects/ -type f /可以发觉对象显然的增强 .git/objects/5f/eaaa33f5f3b3bc5fae0b750b2a5ebdc74b0a27 .git/objects/03/e8

12、6fb4437c4153cec24aa4021dca582abc0558 .git/objects/56/2f7710be64f9309a9fe6aa529753953dbe7e47 .git/objects/57/440fcc9bc816076d418a2da304a2498b928bae .git/objects/20/6ecf269d0f540995d88d6be825fecb09b5d3eb .git/objects/8f/006adb88a619f20442a9eb3148cff31691eaf0 .git/objects/ba/2906d0666cf726c7eaadd2cd3db

13、615dedfdf3a .git/objects/90/48a2fd8c21a70a2dffcf80c819eee2fb491a31 .git/objects/a1/a869c8c840478164594a788ae5ce38dc0ee6da .git/objects/a7/772df6deb98005cf5ee21ae3ea863296677923 .git/objects/2c/f3d62adf771c30fa8062ce2c491d14486ea5ee 接下来这个步骤就是来打tag，tag分为轻量级的和全面包含的 首先是轻量级的tag这个tag虽然是对象，但是并不在对象名目里显示（obj

14、ect名目） rootlocalhost wanyan git tag v1.0 rootlocalhost wanyan ll .git/refs/tags/ total 8 -rw-r-r- 1 root root 41 nov 27 04:50 v1.0 rootlocalhost wanyan cat .git/refs/tags/v1.0 /可以发觉内容是commit呀 a7772df6deb98005cf5ee21ae3ea863296677923 rootlocalhost wanyan git cat-file -t a777 commit 然后是全面包含的tag，名目里显示（

15、object名目） rootlocalhost wanyan git tag -a stable1.0 -m 1st stable rootlocalhost wanyan find .git/objects/ -type f .git/objects/5f/eaaa33f5f3b3bc5fae0b750b2a5ebdc74b0a27 .git/objects/03/e86fb4437c4153cec24aa4021dca582abc0558 .git/objects/56/2f7710be64f9309a9fe6aa529753953dbe7e47 .git/objects/57/440fc

16、c9bc816076d418a2da304a2498b928bae .git/objects/20/6ecf269d0f540995d88d6be825fecb09b5d3eb .git/objects/8f/006adb88a619f20442a9eb3148cff31691eaf0 .git/objects/ba/2906d0666cf726c7eaadd2cd3db615dedfdf3a .git/objects/90/48a2fd8c21a70a2dffcf80c819eee2fb491a31 .git/objects/a1/a869c8c840478164594a788ae5ce38

17、dc0ee6da .git/objects/a7/772df6deb98005cf5ee21ae3ea863296677923 .git/objects/8a/26be084ddce5e8178ca91def21e0c8f7a0945e .git/objects/2c/f3d62adf771c30fa8062ce2c491d14486ea5ee rootlocalhost wanyan git cat-file -t 8a26 tag 接下来演示tag的用法 rootlocalhost wanyan vi readme /修改一下 just test! another hang! rootlo

18、calhost wanyan git commit -a -m 3rd commit master a08fc01 3rd commit 1 files changed, 1 insertions(+), 0 deletions(-) rootlocalhost wanyan cat readme just test! another hang! 下边的操作演示的是把tag那个状态（修改之前），那个打包出去 rootlocalhost wanyan git archive -foat=tar -prefix=wanyan/ v1.0 | g /tmp/wanyan.tar.gz rootlocalhost wanyan cd /tmp/ rootlocalhost tmp tar zxvf wanyan.tar.gz wany