Git

Links

Reflog

See logs:
```
git reflog
```
Undo an action:
```
git reset --hard <reflog_id: HEAD@{2}>
```

Stash

Apply:
```
git stash apply stash@{<index>}
```
List of stashes:
```
git stash list
```
Drop:
```
git stash drop stash@{<index>}
```
Clear (drop all stashes):
```
git stash clear
```
Pop (apply and drop):
```
git stash pop stash@{<index>}
```
Show (files that changed in this stash):
```
git stash show stash@{<index>}
```

Tag

Create:

# Without message
git tag <tag_name>

# with message
git tag <tag_name> -m "<message>"

# Add tag to specific commit
git tag <tag_name> <commit_id>

Update:

# Without message
git tag -f <tag_name> <commit_id>

# with message
git tag -f <tag_name> -m "<message>"

List of tags:

# Simple
git tag

# More verbose
git tag --list

Delete:

# For local repo
git tag --delete <tag_name>

# For remote repo
git push origin --delete <tag_name>

Tag data:
```
git show <tag_name>
```

Push tags:

# Single tag
git push origin <tag_name>

# All tags
git push origin master --tags

Auth (SSH)

Generate ssh key:
```
ssh-keygen -t rsa
```
Add private key to system by:
```
ssh-add
```
Get public ssh key by this command:
```
cat ~/.ssh/id_rsa.pub
```
Add public ssh key to git profile setting: https://github.com/settings/keys
Change project remote URL, to ssh type
Connect to git:
```
ssh -T git@github.com
```

Auth (Token & In-URL Auth)

Personal access token:

# With OAuth2
git clone https://oauth2:<access_token>@gitlab.com/myrepo.git

# With username
git clone https://<username>:<access_token>@gitlab.com/myrepo.git

Simple auth:

git clone https://<username>:<password>@gitlab.com/myrepo.git

PIP:

git+https://<username>:<access_token>@gitlab.com/myrepo.git@<tag>

NPM:

git+https://<username>:<access_token>@gitlab.com/myrepo.git

Alias

Add:

git config --global alias.<command_name> "<command>"

# Example
git config --global alias.hist "log --all --oneline --graph --decorate"

Config

Default editor:

git config --global core.editor "<editor name: vim>"

Password cache:

git config --global credential.helper 'cache --timeout=<time in seconds: 3600>'

SSL problem:

git config --global http.sslverify false

Pull/Push

Last pull time:
```
stat -c %y .git/FETCH_HEAD
```