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Low-level sys crate to build and link librosie for inclusion in a Rust project. Used by the rosie-rs crate.

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rosie-sys Overview

This crate builds or links the librosie library for the Rosie matching engine and the Rosie Pattern Language(rpl).

The majority of users wishing to use Rosie in Rust should probably use the rosie crate.

Building vs. Linking librosie

This crate can either build librosie from source or link to an existing library.

Building from source

To build librosie, specify the build_static_librosie feature in the [dependencies] section of your Cargo.toml:

rosie-sys = { features = ["build_static_librosie"] }

Building rosie as a C / FFI dependency

If you're using this crate to build the dependency for another C (non-Rust) project, you can access the rosie header files from your Cargo build script using the DEP_ROSIE_INCLUDE environment variable. Also, the location of the built librosie library will be specified by the DEP_ROSIE_LIB environment var.

Installation & Deployment

Rosie depends on a rosie_home directory, containing support files including the Standard Pattern Library. This crate produces the needed files, which can be obtained from the build out directory, or from the location specified by the ROSIE_HOME environment variable, accessible to a Cargo build script.

When deploying an app that uses Rosie, you must ensure that these files are installed somewhere on the target machine. The cannonical location on unix-like systems is: /usr/local/lib/rosie/ although you may install them elsewhere. For example, they may be placed inside your app directory or within a Mac OS X .app bundle directory.

If the files are installed in a non-standard location, you must initialize Rosie with the path, by calling [rosie_home_init]. Alternatively, if you are using the high-level rosie crate, call Rosie::set_rosie_home_path().

Linking to a shared rosie library

To link against a shared librosie, already installed on the system, add the following to the [dependencies] section of your Cargo.toml:

rosie-sys = { features = ["link_shared_librosie"] }

Obtaining Rosie outside Cargo

Complete info on obtaining and building Rosie is here. However, Rosie may also be available through your package-manager of choice. For example, if your OS supports it, you may run one of the following:

  • dnf install rosie
  • brew install rosie

Or if you would prefer to install Rosie via the Makefile, Look Here.

NOTE: This crate has been tested aganst librosie version 1.3.0, although it may be compatible with other versions.

Updating the Rosie source inside this crate

Many files within this crate are copied from either the main Rosie source or the build products.

Here is the script for refreshing the source files. This assumes the rosie-sys project is checked out as a peer of the rosie main project, and that the rosie project has been built sucessfully, which pulls the submodules and creates the rosie_home output files.

cp -r rosie/src/librosie rosie-sys/src/librosie
cp -r rosie/src/rpeg/compiler rosie-sys/rpeg/compiler
cp -r rosie/src/rpeg/include rosie-sys/rpeg/include
cp -r rosie/src/rpeg/runtime rosie-sys/rpeg/runtime
cp -r rosie/submodules/lua-cjson rosie-sys/src/lua-cjson
cp rosie/build/lib/rosie/CHANGELOG rosie-sys/src/rosie_home/CHANGELOG
cp rosie/build/lib/rosie/CONTRIBUTORS rosie-sys/src/rosie_home/CONTRIBUTORS
cp rosie/build/lib/rosie/LICENSE rosie-sys/src/rosie_home/LICENSE
cp rosie/build/lib/rosie/README rosie-sys/src/rosie_home/README
cp rosie/build/lib/rosie/VERSION rosie-sys/src/rosie_home/VERSION
cp -r rosie/build/lib/rosie/lib rosie-sys/src/rosie_home/lib
cp -r rosie/build/lib/rosie/rpl rosie-sys/src/rosie_home/rpl

NOTE The lua-cjson files have some changes to squish a few warnings, that are not propagated upstream. Since it's unlikely to change, perhaps skip taking lua-cjson from upstream.

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Low-level sys crate to build and link librosie for inclusion in a Rust project. Used by the rosie-rs crate.

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