Question

I’m trying to understand the exact format for how git stores tree objects. How is the hash of a tree object calculated?

Answer 1

tree object

'tree' ' ' size_decimal '\0' tree_content

for each entry in tree_content

mode ' ' filename '\0' hash_20_bin

mode: 100644 for a regular file, 100755 executable; 040000: tree; 120000: symlink; 160000: gitlink

table http://linquize.blogspot.hk/2011/10/supplemental-information-for-git.html