[git-cheat-sheet.git] / README.md

git-cheat-sheet
===============

How to do stuff with git


Splitting a repo
----------------

### Remove history of all but select files in cloned repo
```sh
$ cp -Rp old new
$ cd new
$ git clean -dfx
$ git gc --aggressive --prune=now
$ git remote rm origin
$ git filter-branch \
    --prune-empty \
    --index-filter '
        git ls-tree -r --name-only HEAD \
        | grep -v file_i_want_to_keep_1 \
        | grep -v file_i_want_to_keep_.. \
        | grep -v file_i_want_to_keep_n \
        | xargs git rm --cached -r --ignore-unmatch
    ' \
    HEAD
$ git gc --aggressive --prune=now
```

### Remove history of previously-removed (not in current tree) files
```sh
$ git log --pretty=format: --name-status | awk '$0 != "" {print $2}' | sort -u > /tmp/tree.old
$ git ls-tree -r --name-only HEAD > /tmp/tree.new
$ git filter-branch --prune-empty --index-filter 'grep -Fvxf /tmp/tree.new /tmp/tree.old | xargs git rm --cached -r --ignore-unmatch' HEAD
```
Commit	Line	Data
	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 \| awk '$0 != "" {print $2}' \| sort -u > /tmp/tree.old
	33	$ git ls-tree -r --name-only HEAD > /tmp/tree.new
	34	$ git filter-branch --prune-empty --index-filter 'grep -Fvxf /tmp/tree.new /tmp/tree.old \| xargs git rm --cached -r --ignore-unmatch' HEAD
	35	```