abstreet/howto/misc_dev_tricks.html
2020-08-18 20:21:54 +00:00

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<ol class="chapter"><li class="chapter-item expanded "><a href="../index.html"><strong aria-hidden="true">1.</strong> Overview</a></li><li class="chapter-item expanded "><a href="../howto/index.html"><strong aria-hidden="true">2.</strong> Instructions</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../howto/dev.html"><strong aria-hidden="true">2.1.</strong> Developer guide</a></li><li class="chapter-item expanded "><a href="../howto/map_parking.html"><strong aria-hidden="true">2.2.</strong> How to map on-street parking</a></li><li class="chapter-item expanded "><a href="../howto/new_city.html"><strong aria-hidden="true">2.3.</strong> Importing a new city</a></li><li class="chapter-item expanded "><a href="../howto/misc_dev_tricks.html" class="active"><strong aria-hidden="true">2.4.</strong> Misc developer tricks</a></li></ol></li><li class="chapter-item expanded "><a href="../how_it_works.html"><strong aria-hidden="true">3.</strong> How it works</a></li><li class="chapter-item expanded "><a href="../map/index.html"><strong aria-hidden="true">4.</strong> Map model</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../map/importing/index.html"><strong aria-hidden="true">4.1.</strong> Importing</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../map/importing/convert_osm.html"><strong aria-hidden="true">4.1.1.</strong> convert_osm</a></li><li class="chapter-item expanded "><a href="../map/importing/geometry.html"><strong aria-hidden="true">4.1.2.</strong> Road/intersection geometry</a></li><li class="chapter-item expanded "><a href="../map/importing/rest.html"><strong aria-hidden="true">4.1.3.</strong> The rest</a></li></ol></li><li class="chapter-item expanded "><a href="../map/edits.html"><strong aria-hidden="true">4.2.</strong> Live edits</a></li><li class="chapter-item expanded "><a href="../map/misc.html"><strong aria-hidden="true">4.3.</strong> Misc</a></li></ol></li><li class="chapter-item expanded "><a href="../trafficsim/index.html"><strong aria-hidden="true">5.</strong> Traffic simulation</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../trafficsim/discrete_event.html"><strong aria-hidden="true">5.1.</strong> Discrete event simulation</a></li><li class="chapter-item expanded "><a href="../trafficsim/travel_demand.html"><strong aria-hidden="true">5.2.</strong> Travel demand</a></li><li class="chapter-item expanded "><a href="../trafficsim/gridlock.html"><strong aria-hidden="true">5.3.</strong> Gridlock</a></li></ol></li><li class="chapter-item expanded "><a href="../case_studies/index.html"><strong aria-hidden="true">6.</strong> Case studies</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../case_studies/lake_wash.html"><strong aria-hidden="true">6.1.</strong> Lake Washington Blvd Stay Healthy Street</a></li><li class="chapter-item expanded "><a href="../case_studies/west_seattle.html"><strong aria-hidden="true">6.2.</strong> West Seattle mitigations</a></li></ol></li><li class="chapter-item expanded "><a href="../api.html"><strong aria-hidden="true">7.</strong> API</a></li><li class="chapter-item expanded "><a href="../project/index.html"><strong aria-hidden="true">8.</strong> Project</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../project/roadmap.html"><strong aria-hidden="true">8.1.</strong> Roadmap</a></li><li class="chapter-item expanded "><a href="../project/motivations.html"><strong aria-hidden="true">8.2.</strong> Motivations</a></li><li class="chapter-item expanded "><a href="../project/history/index.html"><strong aria-hidden="true">8.3.</strong> History</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="../project/history/backstory.html"><strong aria-hidden="true">8.3.1.</strong> Backstory</a></li><li class="chapter-item expanded "><a href="../project/history/year1.html"><strong aria-hidden="true">8.3.2.</strong> Year 1</a></li><li class="chapter-item expanded "><a href="../project/history/year2.html"><strong aria-hidden="true">8.3.3.</strong> Year 2</a></li><li class="chapter-item expanded "><a href="../project/history/year3.html"><strong aria-hidden="true">8.3.4.</strong> Year 3</a></li></ol></li><li class="chapter-item expanded "><a href="../project/CHANGELOG.html"><strong aria-hidden="true">8.4.</strong> Full CHANGELOG</a></li><li class="chapter-item expanded "><a href="../project/references.html"><strong aria-hidden="true">8.5.</strong> References</a></li></ol></li></ol>
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<h1><a class="header" href="#development-notes" id="development-notes">Development notes</a></h1>
<p>Find packages to upgrade: <code>cargo outdated -R</code></p>
<p>Deal with compile tile: <code>cargo bloat --time</code></p>
<p>Find why two binary crates aren't sharing dependencies:
https://old.reddit.com/r/rust/comments/cqceu4/common_crates_in_cargo_workspace_recompiled/</p>
<p>Where's a dependency coming from? <code>cargo tree -i -p syn</code></p>
<p>Diff screencaps: http://www.imagemagick.org/Usage/compare/#methods</p>
<p>Debug OpenGL calls:</p>
<pre><code>apitrace trace --api gl ../target/debug/game
qapitrace game.trace
apitrace dump game.trace
</code></pre>
<p>Understand XML: just use firefox</p>
<h2><a class="header" href="#profiling" id="profiling">Profiling</a></h2>
<p>Actually, https://github.com/flamegraph-rs/flamegraph is pretty cool too.</p>
<p><code>apt-get install google-perftools libgoogle-perftools-dev</code></p>
<p>Follow Usage from https://crates.io/crates/cpuprofiler</p>
<p>Modify <code>game/Cargo.toml</code> to include the <code>abstutil/profiler</code> feature. Then run
game or headless with <code>--enable_profiler</code></p>
<pre><code>google-pprof --no_strip_temp ../target/debug/game profile
google-pprof --no_strip_temp ../target/release/headless profile
top30 --cum
</code></pre>
<p>Why aren't the columns labelled?
https://groups.google.com/d/msg/golang-nuts/qkDWqFKj8og/tWfYAaWRYqkJ</p>
<h2><a class="header" href="#building-releases" id="building-releases">Building releases</a></h2>
<p>Cross-compilation notes: https://github.com/rust-embedded/cross Or use
https://github.com/japaric/trust</p>
<p>Initially have to:</p>
<pre><code class="language-shell">cargo install cross
sudo apt-get install docker.io
sudo usermod -aG docker ${USER}
</code></pre>
<p>Then:</p>
<pre><code>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
</code></pre>
<h2><a class="header" href="#markdown" id="markdown">Markdown</a></h2>
<p>For formatting:</p>
<pre><code>sudo apt-get install npm
cd ~; mkdir npm; cd npm
npm init --yes
npm install prettier --save-dev --save-exact
</code></pre>
<p>Use https://github.com/joeyespo/grip to render. Doesn't seem to work with the
graphviz image.</p>
<p>https://github.com/ekalinin/github-markdown-toc for table of contents (stashed
in ~/Downloads/gh-md-toc)</p>
<h2><a class="header" href="#videos" id="videos">Videos</a></h2>
<pre><code># 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 &quot;[0:v] fps=12,scale=1024:-1,split [a][b];[a] palettegen [p];[b][p] paletteuse&quot; screencast.gif
</code></pre>
<h2><a class="header" href="#faster-linking" id="faster-linking">Faster linking</a></h2>
<pre><code>sudo apt-get install lld
</code></pre>
<p>Stick this in ~/.cargo/config:</p>
<pre><code>[target.x86_64-unknown-linux-gnu]
rustflags = [
&quot;-C&quot;, &quot;link-arg=-fuse-ld=lld&quot;,
]
</code></pre>
<h2><a class="header" href="#git" id="git">git</a></h2>
<p>Keep a fork up to date:</p>
<pre><code># Once
git remote add upstream https://github.com/rust-windowing/glutin/
git fetch upstream
git merge upstream/master
git diff upstream/master
</code></pre>
<h2><a class="header" href="#refactoring" id="refactoring">Refactoring</a></h2>
<p>perl -pi -e 's/WrappedComposite::text_button(ctx, (.+?), (.+?))/Btn::text_fg(\1).build_def(ctx, \2)/' <code>find|grep rs|xargs</code></p>
<h2><a class="header" href="#stack-overflow" id="stack-overflow">Stack overflow</a></h2>
<p>rust-gdb --args ../target/release/game --dev</p>
<h2><a class="header" href="#drawing-diagrams" id="drawing-diagrams">Drawing diagrams</a></h2>
<p>draw.io</p>
<h2><a class="header" href="#mapping" id="mapping">Mapping</a></h2>
<p>xodo on Android for annotating maps in the field</p>
<h2><a class="header" href="#osm-tools" id="osm-tools">OSM tools</a></h2>
<p>osmcha.org for recent changes</p>
<p>To upload diffs:</p>
<pre><code>java -jar ~/Downloads/josm-tested.jar ~/abstreet/map_editor/diff.osc
</code></pre>
<p>JOSM: Press (and release T), then click to pan. Download a relevant layer,
select the .osc, merge, then upload.</p>
<h2><a class="header" href="#fonts" id="fonts">Fonts</a></h2>
<p>fontdrop.info</p>
<h2><a class="header" href="#release-checklist" id="release-checklist">Release checklist</a></h2>
<p>What things are sensitive to changes in map data and simulation rules?</p>
<ul>
<li>tutorial</li>
<li>optimize commute challenges</li>
</ul>
<p>What things do I always forget to test?</p>
<ul>
<li>DPI issues, use <code>--scale_factor</code></li>
</ul>
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