mirror of https://codeberg.org/topola/topola.git
184 lines
5.4 KiB
Markdown
184 lines
5.4 KiB
Markdown
# Installing Topola
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## Building and installing Topola from source
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Note that running any of the below commands that start with `cargo
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install` will install a Topola binary on your system. We assume this is
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what most people coming here want. If you want to build and run Topola
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without installing it, skip these particular commands and follow the
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subsections named *Building and running without installing*.
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By default, the installed version will have a `release` profile, whereas
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without installing the `debug` profile will be used by default.
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### Prerequisites
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Building Topola from source requires
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[git](https://git-scm.com/book/en/v2/Getting-Started-Installing-Git) and
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[cargo](https://doc.rust-lang.org/cargo/getting-started/installation.html)
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to be installed on your system. Follow the instructions in above links
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to obtain these.
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### Obtaining the source
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Clone the [repository](https://codeberg.org/topola/topola):
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git clone https://codeberg.org/topola/topola.git
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### Preparing to build
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Change your working directory to your clone of Topola's repository:
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cd topola
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### Command-line application
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Run the following command to build and install Topola's command-line
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application:
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cargo install --locked --path . --features cli
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The application will now be invokable from your terminal as `topola`.
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#### Autorouting example
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As an example, running the following commands will autoroute a KiCad
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project of a simple THT diode bridge rectifier:
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```
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cd tests/single_layer/tht_diode_bridge_rectifier/
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topola tht_diode_bridge_rectifier.dsn
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```
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By default, the output filename is the input filename with extension
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changed to `ses`: `tht_diode_bridge_rectifier.ses`.
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##### Viewing the results
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You can view the results of the autorouting in KiCad if you have it
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installed. First, open the layout in the KiCad PCB Editor:
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```
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pcbnew tht_diode_bridge_rectifier.kicad_pcb
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```
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Then choose *File > Import > Specctra Session...* from the menu bar.
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In the newly opened file dialog, choose the file named
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*tht_diode_bridge_rectifier.ses*. This will load the autorouted traces.
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#### Building and running without installing
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If you chose not to install the command-line application, you can build
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and run it without installing by replacing the `topola` command with
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`cargo run --features cli --`. Running the above autorouting example is
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then as follows:
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```
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cd tests/single_layer/tht_diode_bridge_rectifier/
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cargo run --features cli -- tht_diode_bridge_rectifier.dsn
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```
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Viewing the results is obviously the same.
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### Egui graphical user interface application
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Topola has a graphical user interface (GUI) application written using
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the [egui](https://github.com/emilk/egui/) library and its paired
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[eframe](https://github.com/emilk/egui/tree/master/crates/eframe)
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framework.
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The following command will build and install Topola's GUI application:
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cargo install --locked --path . --features egui --bin topola-egui
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You can then invoke the application from your terminal by running
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```
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topola-egui
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```
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#### Building and running without installing
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If you chose not to install the GUI application, you can build and run
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it without installing by running
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```
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cargo run --features egui --bin topola-egui
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```
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instead of the above `topola-egui` command.
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#### Running Topola in a Web browser
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Topola's GUI application can be built to and run in a Web browser using
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[Trunk](https://trunkrs.dev/). If you have [cargo-binstall](https://github.com/cargo-bins/cargo-binstall)
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on your system, you can install Trunk from binary with
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cargo binstall trunk
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Alternatively, you can build Trunk from source by running
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cargo install trunk
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To build and open Topola in your browser, run
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trunk serve
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This will work both with and without having the GUI application
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installed.
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### Automated tests
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Topola has automated tests to make sure its basic functionalities work.
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To execute these, run
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cargo test
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Automated tests are run in `debug` profile.
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### Contracts
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The feature described in this section works only in `debug` profile. If
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you are not interested in debugging, you can skip this section
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altogether.
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When trying to locate the source of a bug, it may be helpful to enable
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[contracts](https://en.wikipedia.org/wiki/Design_by_contract) (yes, this
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Wikipedia article needs improvement), which are nothing else but
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somewhat enchanced assertions.
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Unfortunately, the
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[contracts](https://docs.rs/contracts/latest/contracts/) library which
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we have been using enforces post-conditions via closures, which have
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deal-breaking limitations. To bypass these we have forked and modified
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it to use `try` blocks instead. The fork is vendored in the
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[vendored/contracts/](vendored/contracts/) directory.
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However, `try` blocks are not present in stable Rust yet, so to use
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these you need to set up your toolchain to use a nightly version of
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Rust.
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#### Nightly Rust
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To use nightly Rust, run the following command:
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rustup override set nightly
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You can go back to stable with
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rustup override unset
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#### Enabling contracts
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To enable contracts, simply add a `--no-default-features` switch. This
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switches off a default feature that prevents contracts from executing.
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For example, to build tests with contracts, simply run
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cargo test --no-default-features
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Of course, you can enable contracts for any build target. For instance,
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the following command will build the Egui application with debug profile
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and contracts enabled:
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cargo build --features egui --bin topola-egui --no-default-features
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