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michael-kerscher 355d65b3ba
Add mdbook-slide-evaluator (#2258)
I created a first implementation for the mdbook-slide-evaluator I
described in #2234.

One has to run a WebDriver compatible browser (e.g. selenium-chromium)
so the slides can be rendered. The browser can access the file either
via a file:// or http:// uri.

The tool grabs the configurable element from that page and evaluates the
size of this element. Output can be stored in a csv file or at stdout
and looks like this at the moment:
```
$ mdbook-slide-evaluator book/html/android/aidl
book/html/android/aidl/birthday-service.html: 750x134
book/html/android/aidl/example-service/changing-definition.html: 750x555
book/html/android/aidl/example-service/changing-implementation.html: 750x786
book/html/android/aidl/example-service/client.html: 750x1096
book/html/android/aidl/example-service/deploy.html: 750x635
book/html/android/aidl/example-service/interface.html: 750x570
book/html/android/aidl/example-service/server.html: 750x837
book/html/android/aidl/example-service/service-bindings.html: 750x483
book/html/android/aidl/example-service/service.html: 750x711
book/html/android/aidl/types/arrays.html: 750x291
book/html/android/aidl/types/file-descriptor.html: 750x1114
book/html/android/aidl/types/objects.html: 750x1258
book/html/android/aidl/types/parcelables.html: 750x637
book/html/android/aidl/types/primitives.html: 750x366
book/html/android/aidl/types.html: 750x197
```

---------

Co-authored-by: Martin Geisler <martin@geisler.net>
2024-08-21 07:18:07 +00:00

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2.1 KiB
Markdown

mdbook-slide-evaluator allows you to evaluate the rendered slides. This way one
can find if there is too much content on the slides and if sorted by size one
can focus on the worst violations first.
# How to run
## Start a WebDriver compatible browser
### Alternative: Docker
Start a
[selenium docker container](https://github.com/SeleniumHQ/docker-selenium?tab=readme-ov-file#quick-start)
and mount the book folder into the container at `/book/`:
```
$ docker run -d -p 4444:4444 -p 7900:7900 --volume /path/to/my/workspace/comprehensive-rust/book:/book --shm-size="2g" selenium/standalone-chromium:latest
```
As the tool is running with a different base directory, you can use a relative
directory e.g., `../book/`:
```
$ cargo run -- ../book
```
### Alternative: Local WebDriver browser with `webdriver-manager`
Use [webdriver-manager](https://pypi.org/project/webdriver-manager/) to install
a e.g., a `chromedriver` onto your system with:
```
$ pip install selenium webdriver-manager
$ python3
from selenium import webdriver
from selenium.webdriver.chrome.service import Service
from selenium.webdriver.chrome.options import Options
from webdriver_manager.chrome import ChromeDriverManager
driver = webdriver.Chrome(service=Service(ChromeDriverManager().install(), port=4444))
# end the session when you are done.
```
You can provide the absolute path here as the browser has the same view on the
filesystem:
```
$ cargo run -- /path/to/my/workspace/comprehensive-rust/book
```
## Run mdbook-slide-size
If a screenshot directory is provided, the tool can also create screenshots to
evaluate this manually. The tool always recursively grabs all `*.html` files
from the given directory and processes it.
```
cargo run -- --screenshot-dir screenshots ../book/html/
```
# Roadmap
To avoid a `docker mount`, try to build a data uri from the given slide. This
has the challenge that this contains links to local stylesheets that have to be
included. `css_inline` can be used for that and this already works (kind of). If
someone wants to take a stab at this, feel free to contact the author.