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CLI utility to render template files using the Jinja 2 templating engine

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neko

Build Status

Render Jinja 2 templates using a standalone binary

⚠️ HEADS UP! ⚠️

This project is still heavily in flux. While I still encourage and heavily appreciate usage of this tool, I cannot currently guarantee any functionality. That said, if you find bugs and report them to me, I'll personally prioritize addressing them! ❤️

Quick Start

Start templating with Neko today by running:

neko help

There's a pretty decent amount of documentation built into the tool for reference, so please use it if you need to quickly confirm something!

Usage

Basic Concepts

neko renders templates using the Jinja2 engine. This engine has two concepts that are relevant for usage:

Concept Definition
Context The body of variables that can be referenced from within templates
Template Document defining formatting of variables, content, and other templates

The Context in neko is built by aggregating and merging all .json files in a given data directory.

The Template in neko is the specific file that will be rendered after loading all base templates, filters, and macros.

These concepts are pretty native to Jinja2, and neko doesn't really abstract them much. For more info on these, please refer to Jinja2's docs.

File Setup

neko has some basic expectation of default usage. Primarily, it expects a directory structure like the one below:

./
├── data
│   ├── base-data.json
│   ├── sample-data.json
│   └── extra-data.json
└── templates
    ├── basic-document.txt.j2
    └── header-content-template.j2

The given data and templates directory will be fully traversed for json and j2 files respectively, so feel free to structure as needed for your hierarchy.

Rendering a Template

neko render template-file-name.j2

The render command expects the full file name of the template that should be rendered from within the templates directory. The result will be printed directly to stdout.

Debugging the Context

neko data

It can be helpful when multiple files are involved to see what context was used to generate templates. Instead of making a template that prints out the entire structure of the data context, neko provides the convenience sub-command data, which will print out the entire data context in a JSON object after fully merging all found files.

Development

neko relies mainly on the structopt, serde, and tera crates, and compiles using the default Rust toolchain. Nothing terribly fancy here. There's a Travis CI pipeline set up to compile to multiple target OS and architectures, and that'll run for any commits to master and dev, as well as populate releases for tagged commits to master.

There's currently no project management, just check the todo's for info on what to work on, and the contribution guide for info on improving neko!

🐱

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CLI utility to render template files using the Jinja 2 templating engine

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