Working on an Existing Scarb Package

If you download an existing package that uses Scarb, it's really easy to get going.

First, get the package from somewhere. For example, the alexandria package is hosted on GitHub, and we 'll clone its repository using Git. Note that Alexandria is a collection of multiple packages, and we will use alexandria_math as an example in this guide.

shell

git clone https://github.com/keep-starknet-strange/alexandria
cd alexandria
cat Scarb.toml

Then to build it, use scarb build:

shell

$ scarb build
   Compiling alexandria_ascii v0.1.0 (/path/to/package/alexandria/src/ascii/Scarb.toml)
   Compiling alexandria_data_structures v0.1.0 (/path/to/package/alexandria/src/data_structures/Scarb.toml)
   Compiling alexandria_encoding v0.1.0 (/path/to/package/alexandria/src/encoding/Scarb.toml)
   Compiling alexandria_linalg v0.1.0 (/path/to/package/alexandria/src/linalg/Scarb.toml)
   Compiling alexandria_math v0.2.0 (/path/to/package/alexandria/src/math/Scarb.toml)
   Compiling alexandria_numeric v0.1.0 (/path/to/package/alexandria/src/numeric/Scarb.toml)
   Compiling alexandria_searching v0.1.0 (/path/to/package/alexandria/src/searching/Scarb.toml)
   Compiling alexandria_sorting v0.1.0 (/path/to/package/alexandria/src/sorting/Scarb.toml)
   Compiling alexandria_storage v0.2.0 (/path/to/package/alexandria/src/storage/Scarb.toml)
    Finished `dev` profile target(s) in 5 seconds

This will fetch all the dependencies and then build them, along with the package.

You might want to simply check the package and all of its dependencies for errors without performing the final step of output files generation. Instead of scarb build, you can use a bit faster command - scarb check:

shell

$ scarb check
    Checking alexandria_ascii v0.1.0 (/path/to/package/alexandria/src/ascii/Scarb.toml)
    Checking alexandria_data_structures v0.1.0 (/path/to/package/alexandria/src/data_structures/Scarb.toml)
    Checking alexandria_encoding v0.1.0 (/path/to/package/alexandria/src/encoding/Scarb.toml)
    Checking alexandria_linalg v0.1.0 (/path/to/package/alexandria/src/linalg/Scarb.toml)
    Checking alexandria_math v0.2.0 (/path/to/package/alexandria/src/math/Scarb.toml)
    Checking alexandria_numeric v0.1.0 (/path/to/package/alexandria/src/numeric/Scarb.toml)
    Checking alexandria_searching v0.1.0 (/path/to/package/alexandria/src/searching/Scarb.toml)
    Checking alexandria_sorting v0.1.0 (/path/to/package/alexandria/src/sorting/Scarb.toml)
    Checking alexandria_storage v0.2.0 (/path/to/package/alexandria/src/storage/Scarb.toml)
    Finished checking `dev` profile target(s) in 4 seconds

Working on an Existing Scarb Package ​

Working on an Existing Scarb Package