https://github.com/strickyak/jsonnet_cgo

Golang CGo Wrapper around JSonnet VM
https://github.com/strickyak/jsonnet_cgo

Last synced: over 1 year ago
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Golang CGo Wrapper around JSonnet VM

• Host: GitHub
• URL: https://github.com/strickyak/jsonnet_cgo
• Owner: strickyak
• License: mit
• Created: 2014-12-29T03:27:33.000Z (over 11 years ago)
• Default Branch: master
• Last Pushed: 2019-07-04T00:44:01.000Z (about 7 years ago)
• Last Synced: 2024-11-04T12:40:03.591Z (over 1 year ago)
• Language: C++
• Size: 388 KB
• Stars: 16
• Watchers: 3
• Forks: 4
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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• awesome-ccamel - strickyak/jsonnet_cgo - Golang CGo Wrapper around JSonnet VM (C++)

README

          
# `jsonnet_cgo`

Simple golang cgo wrapper around JSonnet VM.

Everything in libjsonnet.h is covered except the multi-file evaluators.

See jsonnet_test.go for how to use it.

## Quick example in golang:

        vm := jsonnet.Make()

        vm.ExtVar("color", "purple")

        x, err := vm.EvaluateSnippet(`Test_Demo`, `"dark " + std.extVar("color")`)

        if err != nil {

                panic(err)

        }

        if x != "\"dark purple\"\n" {

                panic("fail: we got " + x)

        }

        vm.Destroy()

## Quick examples with the command line demo program:

```

$ ( cd jsonnet_main/  ; go  build -x -a )

...

mv $WORK/b001/exe/a.out jsonnet_main

...

$ echo "{ a: 1, b: 2 }"  | jsonnet_main/jsonnet_main /dev/stdin

{

   "a": 1,

   "b": 2

}

$ cat test1.j

{

  shell: "/bin/sh",

  awk: "/usr/bin/awk",

}

$ jsonnet_main/jsonnet_main test1.j

{

   "awk": "/usr/bin/awk",

   "shell": "/bin/sh"

}

$ cat test2.j

local test1 = import "test1.j";

test1 {

  shell: "/bin/csh",

}

$ jsonnet_main/jsonnet_main test2.j

{

   "awk": "/usr/bin/awk",

   "shell": "/bin/csh"

}

$ echo ' std.extVar("a") + "bar" ' | jsonnet_main/jsonnet_main /dev/stdin a=foo

"foobar"

```

## LICENSES

Notice the various `LICENSE*` files.  I cannot offer legal advice,

but you might find that the Apache License is the most restrictive.

Most of this code comes from https://github.com/google/jsonnet

and is under the Apache License, Version 2.0, January 2004,

and our files that match filenames there are under that license.

Notice the `third_party/` directory in that distribution.

It has `json/` and `md5/` under their own licences, and our files

that match filenames there are under those licenses.

Anything new added here is under an MIT license in the plain `LICENSE` file.