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[git-cheat-sheet.git] / README.md
1 git-cheat-sheet
2 ===============
3
4 How to do stuff with git
5
6
7 Splitting a repo
8 ----------------
9
10 ### Remove history of all but select files in cloned repo
11 ```sh
12 $ cp -Rp old new
13 $ cd new
14 $ git clean -dfx
15 $ git gc --aggressive --prune=now
16 $ git remote rm origin
17 $ git filter-branch \
18 --prune-empty \
19 --index-filter '
20 git ls-tree -r --name-only HEAD \
21 | grep -v file_i_want_to_keep_1 \
22 | grep -v file_i_want_to_keep_.. \
23 | grep -v file_i_want_to_keep_n \
24 | xargs git rm --cached -r --ignore-unmatch
25 ' \
26 HEAD
27 $ git gc --aggressive --prune=now
28 ```
29
30 ### Remove history of previously-removed (not in current tree) files
31 ```sh
32 $ git log --pretty=format: --name-status \
33 | awk '$0 != "" {print $2}' \
34 | sort -u > /tmp/tree.old
35 $ git ls-tree -r --name-only HEAD > /tmp/tree.new
36 $ git filter-branch \
37 --prune-empty \
38 --index-filter '
39 grep -Fvxf /tmp/tree.new /tmp/tree.old \
40 | xargs git rm --cached -r --ignore-unmatch
41 ' \
42 HEAD
43 ```
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