$ git ls-tree fb3a8bdd0ce
100644 blob 63c918c667fa005ff12ad89437f2fdc80926e21c .gitignore
100644 blob 5529b198e8d14decbe4ad99db3f7fb632de0439d .mailmap
100644 blob 6ff87c4664981e4397625791c8ea3bbb5f2279a3 COPYING
040000 tree 2fb783e477100ce076f6bf57e4a6f026013dc745 Documentation
100755 blob 3c0032cec592a765692234f1cba47dfdcc3a9200 GIT-VERSION-GEN
100644 blob 289b046a443c0647624607d471289b2c7dcd470b INSTALL
100644 blob 4eb463797adc693dc168b926b6932ff53f17d0b1 Makefile
100644 blob 548142c327a6790ff8821d67c2ee1eff7a656b52 README
...
我知道最后的3位是文件模式,但是前3位是用来做什么的?我在git用户手册中找不到它。
发布于 2018-04-04 14:21:03
从index-format.txt
文件,关于模式:
32-bit mode, split into (high to low bits)
4-bit object type
valid values in binary are 1000 (regular file), 1010 (symbolic link)
and 1110 (gitlink)
3-bit unused
9-bit unix permission. Only 0755 and 0644 are valid for regular files.
Symbolic links and gitlinks have value 0 in this field.
此外,目录对象类型(二进制0100)和可组可写(0664权限)常规文件也被允许,如fsck.c
fsck_tree
方法。常规的不可执行组可写文件是一种非标准模式,在早期版本的Git中支持。
这就产生了有效的模式(二进制和八进制):
0100000000000000
(040000
):目录1000000110100100
(100644
):常规的不可执行文件1000000110110100
(100664
):常规不可执行组可写文件1000000111101101
(100755
):常规可执行文件1010000000000000
(120000
):符号链接1110000000000000
(160000
):Gitlinkhttps://stackoverflow.com/questions/-100003796
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