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README.md

License: GPL v3

jsonnet-mode

Provides Emacs font-lock, indentation, and some useful functions for the Jsonnet templating language.

Table of Contents

Dependencies

The jsonnet-eval method depends on the jsonnet binary, which should be available on your exec-path. Install this on OSX with Homebrew by running brew install jsonnet.

Features

Indentation

Default indentation is provided by jsonnet-calculate-indent and accommodates basic indentation. It isn't consistent with jsonnetfmt and will be replaced by an SMIE based implementation in the near future. If you prefer the newer implementation, you may enable it by setting jsonnet-use-smie to t.

Formatting

Closely related to indentation is formatting. By running jsonnet-reformat-buffer (bound to C-c C-r), the jsonnet fmt utility will reformat your buffer and make it pretty.

Rendering

To get a snapshot of what your Jsonnet file will render to, run jsonnet-eval (bound to C-c C-e). This will popup another window and show the result of running jsonnet-command on the current buffer.

Navigation

jsonnet-mode also provides some methods to make navigation easier. In particular, jsonnet-jump (bound to C-c C-f) allows you to jump to the definition of a given identifier.

Configuration

There are three customizable parameters that you may configure in this mode:

  • jsonnet-command allows you to indicate which Jsonnet binary should be used to render a JSON document.
  • jsonnet-library-search-directories specifies the sequence of Jsonnet library search directories use during evaluation.
    Relative paths in this sequence must resolve from the directory of the buffer being evaluated.
  • jsonnet-enable-debug-print will cause methods in jsonnet-mode to write messages to the status bar if enabled.
  • jsonnet-use-smie enables SMIE-provided indentation.

About

Emacs major mode for editing Jsonnet files.

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