abstreet/docs/misc_dev_tricks.md
Dustin Carlino e46cd7b677 cache SVGs
2020-02-08 16:27:45 -08:00

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# Development notes
Find packages to upgrade: `cargo outdated -R`
Deal with compile tile: `cargo bloat --time`
Find why two binary crates aren't sharing dependencies:
https://old.reddit.com/r/rust/comments/cqceu4/common_crates_in_cargo_workspace_recompiled/
Where's a dependency coming from? `cargo tree -i -p syn`
Diff screencaps: http://www.imagemagick.org/Usage/compare/#methods
Debug OpenGL calls:
```
apitrace trace --api gl ../target/debug/game ../data/input/raw_maps/montlake.bin
qapitrace game.trace
apitrace dump game.trace
```
Understand XML: just use firefox
## Profiling
Actually, https://github.com/flamegraph-rs/flamegraph is pretty cool too.
`apt-get install google-perftools libgoogle-perftools-dev`
Follow Usage from https://crates.io/crates/cpuprofiler
Modify `game/Cargo.toml` to include the `profiler` feature on `ezgui`. Then
run game or headless with `--enable_profiler`
```
google-pprof --no_strip_temp ../target/debug/game profile
google-pprof --no_strip_temp ../target/release/headless profile
top30 --cum
```
## Building releases
Cross-compilation notes: https://github.com/rust-embedded/cross Or use
https://github.com/japaric/trust
Initially have to:
```shell
cargo install cross
sudo apt-get install docker.io
sudo usermod -aG docker ${USER}
```
Then:
```
sudo systemctl start docker
cross build --release --target x86_64-pc-windows-gnu --bin game
wine target/x86_64-pc-windows-gnu/release/game.exe data/system/maps/montlake.bin
```
## Markdown
For formatting:
```
sudo apt-get install npm
cd ~; mkdir npm; cd npm
npm init --yes
npm install prettier --save-dev --save-exact
```
Use https://github.com/joeyespo/grip to render. Doesn't seem to work with the
graphviz image.
https://github.com/ekalinin/github-markdown-toc for table of contents (stashed
in ~/Downloads/gh-md-toc)
## Videos
```
# Fullscreen
ffmpeg -f x11grab -r 25 -s 1920x960 -i :0.0+0,55 -vcodec huffyuv raw.avi
ffmpeg -ss 10.0 -t 5.0 -i raw.avi -f gif -filter_complex "[0:v] fps=12,scale=1024:-1,split [a][b];[a] palettegen [p];[b][p] paletteuse" screencast.gif
```
## JOSM
```
java -jar ~/Downloads/josm-tested.jar ~/abstreet/map_editor/diff.osc
```
Press (and release T), then click to pan. Download a relevant layer, select the
.osc, merge, then upload.
## Faster linking
```
sudo apt-get install lld
```
Stick this in ~/.cargo/config:
```
[target.x86_64-unknown-linux-gnu]
rustflags = [
"-C", "link-arg=-fuse-ld=lld",
]
```