tpl

README

tpl

Render yaml and json with go templates from the command line.

The templates are executed with the text/template package. This means they come with the additional risks and benefits the text templates provide. Additionally, Sprig functions are available.

Usage

The input data is read from stdin via pipe or redirection.

# Redirection
tpl < path/to/input.json
# Pipe
curl localhost | tpl

The template is either read from the first positional argument or from a path specified via --template or -t flag.

# Positional argument
echo '{"place": "bar"}' | tpl 'lets go to the {{.place}}!'
# File
echo '{"place": "bar"}' | tpl --template path/to/template

Flags

-n
-no-newline
      do not print a new line at the end
-t string
-template string
      alternative way to specify template

Installation

Go

go install github.com/bluebrown/tpl

Docker

curl -s https://jsonplaceholder.typicode.com/users/1 | docker run -i bluebrown/tpl '{{.name}}'

Example

$ curl -s https://jsonplaceholder.typicode.com/users | tpl '<table>
  <caption>My Address Nook</caption>
  <tr>
    <th>Name</th>
    <th>Email</th>
    <th>Phone</th>
    <th>Address</th>
  </tr>
  {{- range . }}
  <tr>
    <th>{{ .name }}</th>
    <td>{{ .email }}</td>
    <td>{{ .phone }}</td>
    <td>
      <ul>
        {{- range $key, $val := .address }} {{ if ne $key "geo" }}
        <li><strong>{{$key}}:</strong> &nbsp; {{$val}}</li>
        {{- end -}}
        {{ end }}
      </ul>
    </td>
  </tr>
  {{- end -}}
</table>' | less

The result looks like this

My Address Nook

Name	Email	Phone	Address
Leanne Graham	Sincere@april.biz	1-770-736-8031 x56442	city:   Gwenborough street:   Kulas Light suite:   Apt. 556 zipcode:   92998-3874
Ervin Howell	Shanna@melissa.tv	010-692-6593 x09125	city:   Wisokyburgh street:   Victor Plains suite:   Suite 879 zipcode:   90566-7771
Clementine Bauch	Nathan@yesenia.net	1-463-123-4447	city:   McKenziehaven street:   Douglas Extension suite:   Suite 847 zipcode:   59590-4157
Patricia Lebsack	Julianne.OConner@kory.org	493-170-9623 x156	city:   South Elvis street:   Hoeger Mall suite:   Apt. 692 zipcode:   53919-4257
Chelsey Dietrich	Lucio_Hettinger@annie.ca	(254)954-1289	city:   Roscoeview street:   Skiles Walks suite:   Suite 351 zipcode:   33263
Mrs. Dennis Schulist	Karley_Dach@jasper.info	1-477-935-8478 x6430	city:   South Christy street:   Norberto Crossing suite:   Apt. 950 zipcode:   23505-1337
Kurtis Weissnat	Telly.Hoeger@billy.biz	210.067.6132	city:   Howemouth street:   Rex Trail suite:   Suite 280 zipcode:   58804-1099
Nicholas Runolfsdottir V	Sherwood@rosamond.me	586.493.6943 x140	city:   Aliyaview street:   Ellsworth Summit suite:   Suite 729 zipcode:   45169
Glenna Reichert	Chaim_McDermott@dana.io	(775)976-6794 x41206	city:   Bartholomebury street:   Dayna Park suite:   Suite 449 zipcode:   76495-3109
Clementina DuBuque	Rey.Padberg@karina.biz	024-648-3804	city:   Lebsackbury street:   Kattie Turnpike suite:   Suite 198 zipcode:   31428-2261