Easy way to create a patch with Git

1. Create a new branch from master
2. Add code to this branch
3. Commit
4. Repeat points 2 and 3 if necessary ;)

Perform git format-patch master --stdout > my_feature.patch

and you will find my_feature.patch file in your app directory :)

Git diff excluding file

Following will show current branch diff excluding package-lock.json file.

git diff -- . ':(exclude)package-lock.json'

Revert^2

In the given scenario:

1. Pull request was merged
2. The connected branch#1 was removed
3. Merged PR was reverted
4. You don’t have branch#1, but you can see the reverted commit#1

All you have to do is to track the commit#1 and revert reverted commit.

$ git revert commit#1

Clean up local list of your git branches

Have you ever had to search through a long list of local branches, which are mostly obsolete for you?

To keep your local git repository slim and avoid a long list of branches while doing git branch, there is an easy strategy that can save you a bit of time.

First, always remember to push everything you did to the remote when you leave a desk, then just run in the console:

git branch | grep -v "master" | xargs git branch -D

It will remove all your local branches except master. If you need to restore any particular branch, you can fetch and checkout - it will wait for you on your remote!

Keeping git coloring when piping

git log    

produces colored output, but when using pipe it loses color information

git log | head

but this can be fixed with

git log --color=always | head 

Special thanks to Dude :D

Git global excluding files

To exclude all unwanted files(.rakeTasks, .tool-version etc.) you can create a global config for git. git config --global core.excludesfile ~/.gitignore_global and in this file:

.rakeTasks
.tool-versions

Have you Cmd-C'd your overcommit and lost your changes?

During overcommit running I have interrupted the process and received following message

Interrupt signal received. Stopping hooks...

⚠  Hook run interrupted by user

then

Unable to restore working tree after pre-commit hooks run:
STDOUT:
STDERR:unable to refresh index

To my horror, all my changes were lost! Fortunately, those were kept in stash, so simple git stash pop helped :) More info here

Remove sensitive data from git repository.

When you forgot to use secrets from the very beginning - and some secrets landed in your repository eg. login/password/secret_key you can remove them in a simple way using filter-branch for example to remove password you need to use:

git filter-branch --tree-filter "find . -type f -exec sed -i -e 's/password/**REMOVED**/g' {} \;"

It will replace password with **REMOVED** in the whole repo and commits.

Rebase pull having uncommitted changes

Do you want to pull with --rebase option, but you have some uncommitted changes? Do you need to git stash and git stash pop every time? Suffer no more with auto stash!

git pull --rebase --autostash origin $(git_current_branch)

or

git config --global rebase.autoStash true
# and then
git pull --rebase

Note: this works only in git 2.6 or newer.