Working with git

Simple intro to using git with the gphoto source code.

Get source code and keep it current

Initial cloning of the source repo:

$ git clone https://github.com/gphoto/libgphoto2
$ cd libgphoto2

Merge upstream changes into the local master branch:
```
$ cd libgphoto2
$ git pull
```
This makes the most sense if you have not changed anything locally.
Fetch upstream changes, but do not merge them:
```
$ cd libgphoto2
$ git fetch -v
```
Get a graphical overview of what you are doing
```
$ cd libgphoto2
$ gitk --all
```

To be written.

To be written.

How to discard all changes to all *.po files (e.g. useful after make dist):
```
  git checkout -- po/*.po libgphoto2_port/po/*.po
```
Committing changes to the *.m4 files in m4/ and libgphoto2_port/m4/ is non-trivial. The description for doing that still needs to be written.

However, those files change rarely, and only few people ever change them, so it is only those few people who need that specific knowledge. Everyone else can just clone and pull their repos and things work.