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https://github.com/google/jsonnet

Jsonnet - The data templating language
https://github.com/google/jsonnet

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Jsonnet - The data templating language

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# Jsonnet - The data templating language



![master branch build status badge](https://github.com/google/jsonnet/actions/workflows/build_and_test.yml/badge.svg?event=push&branch=master)



For an introduction to Jsonnet and documentation,

[visit our website](https://jsonnet.org).



This repository contains the original implementation. You can also try [go-jsonnet](https://github.com/google/go-jsonnet), a newer implementation which in some cases is orders of magnitude faster.



Visit our [discussion forum](https://groups.google.com/g/jsonnet).



## Packages



Jsonnet is available on Homebrew:



```

brew install jsonnet

```



[Jsonnet](https://packages.msys2.org/base/mingw-w64-jsonnet) is available on [MSYS2](https://www.msys2.org/):



```

pacman -S mingw-w64-clang-i686-jsonnet

```

```

pacman -S mingw-w64-clang-x86_64-jsonnet

```

```

pacman -S mingw-w64-i686-jsonnet

```

```

pacman -S mingw-w64-x86_64-jsonnet

```

```

pacman -S mingw-w64-ucrt-x86_64-jsonnet

```



The Python binding is on pypi:



```

pip install jsonnet

```



You can also download and install Jsonnet using the [vcpkg](https://github.com/Microsoft/vcpkg/)

dependency manager:



```

git clone https://github.com/Microsoft/vcpkg.git

cd vcpkg

./bootstrap-vcpkg.sh

./vcpkg integrate install

vcpkg install jsonnet

```



The Jsonnet port in vcpkg is kept up to date by Microsoft team members and community contributors.

If the version is out of date, please [create an issue or pull

request](https://github.com/Microsoft/vcpkg) on the vcpkg repository.



## Building Jsonnet



You can use either GCC or Clang to build Jsonnet. Note that on recent versions

of macOS, `/usr/bin/gcc` and `/usr/bin/g++` are actually Clang, so there is no

difference.



### Makefile



To build Jsonnet with GCC, run:



```

make

```



To build Jsonnet with Clang, run:



```

make CC=clang CXX=clang++

```



To run the output binary, run:



```

./jsonnet

```



To run the reformatter, run:



```

./jsonnetfmt

```



### Bazel



Bazel builds are also supported.

Install [Bazel](https://www.bazel.io/versions/master/docs/install.html) if it is

not installed already. Then, run the following command to build with GCC:



```

bazel build -c opt //cmd:all

```



To build with Clang, use one of these two options:



```

env CC=clang CXX=clang++ bazel build -c opt //cmd:all



# OR



bazel build -c opt --action_env=CC=clang --action_env=CXX=clang++ //cmd:all

```



This builds the `jsonnet` and `jsonnetfmt` targets defined in [`cmd/BUILD`](./cmd/BUILD). To launch

the output binaries, run:



```

bazel-bin/cmd/jsonnet

bazel-bin/cmd/jsonnetfmt

```



### Cmake



```

cmake . -Bbuild

```



```

cmake --build build --target run_tests

```



## Contributing



See the [contributing page](https://jsonnet.org/learning/community.html#license) on our website.



## Developing Jsonnet



### Running tests



To run the comprehensive suite:



```

make test

```



### Locally serving the website



You need a `doc/js/libjsonnet.wasm` which can either be downloaded from the

production website:



```

wget https://jsonnet.org/js/libjsonnet.wasm -O doc/js/libjsonnet.wasm

```



Or you can build it yourself, which requires checking out

[go-jsonnet](https://github.com/google/go-jsonnet).  See the README.md in

that repo for instructions.



The standard library is documented in a structured format in `doc/_stdlib_gen/stdlib-content.jsonnet`.

The HTML (input for Jekyll) is regenerated using the following command:



```

tools/scripts/update_web_content.sh

```



Then, from the root of the repository you can generate and serve the website using

[Jekyll](https://jekyllrb.com/) (you need version 4.3.0 or later):



```

jekyll serve -s doc/

```



This should build and serve the website locally, and automatically rebuild

when you change any underlying files.