How to write a tree object to a directory (outside of the repository)?

Question

I would like to write a git tree into a directory, ie given that output from git ls-tree:

% git ls-tree -lrt 312735a86fe300861ebf0e6b081616029c2f6b76 

040000 tree ba37a4590a12acdd773e444b06e75ad151150ed2       -    subdir1
100644 blob deba01fc8d98200761c46eb139f11ac244cf6eb5      10    subdir1/test.txt
100644 blob dce813842fd90177bd0fbfd3011797934ee31303      15    test2.txt

I want to do:

% git some-command 312735a86fe300861ebf0e6b081616029c2f6b76 /tmp/output-dir

And have in output-dir:

tree output-dir
.
├── subdir1
│   └── test.txt
└── test2.txt

I imagine I could parse output of git ls-tree and then, based on the second column call git ls-tree recursively or git cat-file. My question is more to know if there is a built-in tool (or an external tool) which allows to do just so?

Does `git checkout 312735a86...` work? Once you have the checkout you can move it to a directory of your choice. You might also experiment with `--work-tree` (and/or `--git-dir`) see https://stackoverflow.com/a/1386350/1671066. — Micha Wiedenmann, Jul 03 '18 at 12:00

axiac · Accepted Answer · 2018-07-03T12:54:16.580

1

You can use git archive to export the desired tree as a .tar archive (it sends it by default to stdout) and pipe its output through tar -x to unpack the files into the desired directory:

git archive HEAD -- subdir1 | tar -x -C /tmp/output-dir

Replace subdir1 with the path inside the repository of the directory you want to export.

edited Jul 03 '18 at 12:54

answered Jul 03 '18 at 12:02

axiac

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Perfect, it's exactly what I was looking for and not finding! Thanks! – fanf42 Jul 03 '18 at 12:15
@code707 indeed, I mixed them up. Fixed now, thank you. – axiac Jul 03 '18 at 13:50

How to write a tree object to a directory (outside of the repository)?

1 Answers1