guidon

Documentation

guidon is a french word for handlebars.
guidon is a small library which aims to speed up project initialization with templates.

guidon has a command line interface guic

toml [dependencies] guidon = "0.2"

guidon performs templating based on handlebars templating system.

Usage

Files to be handles needs to have an .hbs extension. Folders and files names can be templatized too : {{folder/subfolder}}
The entry point is the Guidon structure.

Basic init

```rust, no_run use guidon::Guidon; use std::collections::HashMap; use std::path::PathBuf;

let mut guidon = Guidon::new(PathBuf::from("path/to/template/dir")); let mut vars = HashMap::new(); vars.insert("key1".tostring(), "value1".tostring()); guidon.apply_template("path/to/destination").unwrap(); `` With this initialization: * guidon will use the vars map to find substitution values. * guidon will parse the directorypath/to/template/dir/template * the result will be written inpath/to/destination`

TryNew init

guidon implements a TryNew trait to initialize from a dir or a git repo

TryNew from path

```rust, no_run use guidon::{Guidon, TryNew};

let mut guidon = Guidon::try_new("path/to/template/dir").unwrap(); `` With this initialization: * guidon will init the substitution variables frompath/to/template/dir/variables.toml * guidon will parse the directorypath/to/template/dir/template`

```rust, no_run use guidon::{Guidon, TryNew};

let mut guidon = Guidon::trynew("path/to/template/dir/myvars.toml").unwrap(); guidon.usetemplatedir(false); `` With this initialization: * guidon will init the substitution variables frompath/to/template/dir/my_vars.toml * guidon will parse the directorypath/to/template/dir`

TryNew from git repo

```rust, no_run use guidon::{{Guidon, TryNew, GitOptions}};

let git = GitOptions::builder() .repo("url/to/repo") .credentials(("user".tostring(), "password".tostring())) .build() .unwrap(); let mut guidon = Guidon::try_new(git); `` With this initialization * guidon will clone the repo to a temporary directory * guidon will init the substitutions variables fromtmp/dir/template.toml * when applying template, guidon will parse the directorytmp/dir/template`

Template variables

The configuration file is structured as follows : ```toml

Key value pairs for template substitution

[variables] test1 = "test 1" test2 = "test 2" ```

Features

The git initialization is a feature that can be deactivated.
In Cargo.toml toml [dependencies.guidon] version = "0.2" default-features = false

Callbacks

guidon offers the possiblity to provide two callbacks : * a variables callback to operate on the variables before applying the template * a render callback, which is called if a missing value is detected while rendering the template.

These callbacks could be use for user interaction, or default behaviour.

Variable callback

In this example, the callback will add " cb" to every value. rust, no_run use guidon::Guidon; use std::collections::HashMap; use std::path::PathBuf; let cb = |h: &mut HashMap<String, String>| { h.iter_mut().for_each(|(_, v)| *v +=" cb"); }; let mut guidon = Guidon::new(PathBuf::from("template/path")); guidon.set_variables_callback(cb);

Render callback

In this example, the callback will replace any missing value by the key concatenated with "-cb" ```rust, no_run use guidon::Guidon; use std::collections::HashMap; use std::path::PathBuf;

// this callback will add -cb to the key as a value let cb = |h: String| { let mut s = h.clone(); s.pushstr("-cb"); s }; let mut guidon = Guidon::new(PathBuf::from("template/path")); guidon.setrender_callback(cb); ```

Logs

guidon uses the log facade.

Minimum rust version

The minimum rust version is 1.38.0

License

This project is licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in guidon by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.