# Git Presentation

This is a presentation about Git.

## Download

If you just want to download a copy of the presentation, you can do so [here](https://git.jonathanh.co.uk/attachments/b2f284a7-d9fe-4dda-b8e4-485d79cdfa6e).

## Build

To build it, you will need make, pdflatex and ansi-to-svg and inkscape.

To build the main pdf, run:

```bash
make main.pdf
```

To build with speaker notes:

```bash
make with-notes.pdf
```

To only build the speaker notes:

```bash
make only-notes.pdf
```

## Auto Images

The build system will generate certain types of graphics for the presentation as part of the build
system. The resultant files will always go in the `auto-images` folder. As a result, this folder is
not under version control.

In latex, all you need to do is

```latex
\includegraphics[<options>]{auto-<type>-<file>}
```

The types are documented below:

### XKCD

What is a presentation without an xkcd comic?

```latex
\includegraphics[<options>]{auto-xkcd-<id>.png}
```

If the above is included in the latex document, the XKCD comic with the specified ID will be
downloaded and embedded in the pdf.

### Shell Output

I am still not aware of aware of a reliable way to include ansi coloured shell output into a latex
document. I also don't want to include loads of high-res screenshots in my Git repo.

The work around I have come up with is to save the raw ansi output to a wile in `shell-output`. This
normally involves forcing an application to output in colour:

```bash
git -c color.status=always status > shell-output/git-status.out
```

```latex
\includegraphics[<options>]{auto-shell-<filename>.pdf}
%E.g.
\includegraphics[<options>]{auto-shell-git-status.pdf}
```

The build system will convert the ansi output into an embeddable PDF that LaTeX will embed.

### Online images

In order to download an image from the internet and embed it in the presentation, you need do
provide the extension and the base64 encoded URL.

```latex
\includegraphics[<options>]{auto-download-<base64 encodede url>.png}
```