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$ 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 ... I know the last 3 oct digits are file mode, but what are the first 3 digits for? I can't find it out in git user's manual.
824
Create Mode: - Tells about permissions given to that file, i.e., File permissions. Here, 100644 means the file is a normal file.
the behaviour is similar to that of "/bin/ls" in that the <path> is taken as relative to the current working directory. E.g. when you are in a directory sub that has a directory dir, you can run git ls-tree -r HEAD dir to list the contents of the tree (that is sub/dir in HEAD ).
A Git tree object creates the hierarchy between files in a Git repository. You can use the Git tree object to create the relationship between directories and the files they contain. These endpoints allow you to read and write tree objects to your Git database on GitHub.
From the Git index-format.txt file, regarding the mode:
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. Also, a directory object type (binary 0100) and group-writeable (0664 permissions) regular file are allowed as indicated by the fsck.c fsck_tree method. The regular non-executable group-writeable file is a non-standard mode that was supported in earlier versions of Git.
This makes valid modes (as binary and octal):
0100000000000000 (040000): Directory1000000110100100 (100644): Regular non-executable file1000000110110100 (100664): Regular non-executable group-writeable file1000000111101101 (100755): Regular executable file1010000000000000 (120000): Symbolic link1110000000000000 (160000): Gitlink
168
The 6 digits show the file mode using the classical UNIX notations. First two digits show file type, the third one is about set-uid/set-gid/sticky bits, and you know the last three.
Here is how man 2 stat documents it on my GNU/Linux system:
The following flags are defined for the st_mode field: S_IFMT 0170000 bit mask for the file type bit fields S_IFSOCK 0140000 socket S_IFLNK 0120000 symbolic link S_IFREG 0100000 regular file S_IFBLK 0060000 block device S_IFDIR 0040000 directory S_IFCHR 0020000 character device S_IFIFO 0010000 FIFO S_ISUID 0004000 set UID bit S_ISGID 0002000 set-group-ID bit (see below) S_ISVTX 0001000 sticky bit (see below) S_IRWXU 00700 mask for file owner permissions S_IRUSR 00400 owner has read permission S_IWUSR 00200 owner has write permission S_IXUSR 00100 owner has execute permission S_IRWXG 00070 mask for group permissions S_IRGRP 00040 group has read permission S_IWGRP 00020 group has write permission S_IXGRP 00010 group has execute permission S_IRWXO 00007 mask for permissions for others (not in group) S_IROTH 00004 others have read permission S_IWOTH 00002 others have write permission S_IXOTH 00001 others have execute permission If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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