CODEWITHSUNDEEP
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kallis
kallis

Reputation: 133

How to have git differences of two files into a new file?

Any tool/technique/method for creating a new file from "git diff file1 file2" comment, so that the new file will only have the output of difference.

git diff file1 file2

Upvotes: 2

Views: 1307

Answers (2)

carnicer
carnicer

Reputation: 523

In general, git is NOT used to get the differences between 2 files.

For that, you shall just use the diff command. And for the case you want, use > to send to output to a file, like:

diff file1 file2 >output_file

The git diff is used to get the differences between 2 git references (commits/branches/tags/...).

Sending the output to a file is actually a patch, which can then be applied to another file. This patch may contains the differences of more than 1 file.

If you want to restrict the differences of 1 file between 2 git references, then you would do:

git diff ref1..ref2 file >diffs_of_my_file_between_ref1_and_ref2.patch

This patch can again be used against 1 file to reproduce the changes. With git apply or simply the (non-git) patch. That is another story.

Beware: there are different diff formats. It is possible to specify this format with the options.

Upvotes: 0

Ankush Chavan
Ankush Chavan

Reputation: 1214

If you want to store the output of git diff file1 file2 to another file, then you can achieve the same using the command git diff file1 file2 > output_file.
If you have some data in the output file and you want to append the new difference then you can use the command git diff file1 file2 >> output_file. This command will append the output of the git diff file1 file2 command to the output_file file.

Upvotes: 3

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