Update the handlebar compiler

[eibrahim]

How do I tell lineman to use a new version of the handlebar compiler. I am using sub-expressions and they are only supported in handlebar 1.3. Thanks.

[searls]

Thanks for opening the issue. Lineman is locked to a way-too-old version of grunt-contrib-handlebars (so I'll leave this open as a note to upgrade), but in the meantime you can upgrade handlebars yourself, because any lineman dependency can be overridden by the user. All you have to do is npm i --save-dev grunt-contrib-handlebars@0.8.0 and Lineman will load it from your project's node_modules/ directory instead of loading its own (older) version.

[eibrahim]

I tried to do that and it still fails to compile sub expressions. haw can I confirm that it is compiling handlebars using the correct version?

[davemo]

Can you provide an example of a sub-expression? You can see the verbose output of each individual grunt task when using lineman with the -v flag. lineman run -v.

You can also run individual tasks with lineman grunt taskname ie: lineman grunt handlebars -v

[eibrahim]

I got it working by using emberTemplates settings in the config\application.js file to point to my own version. I got the info from here https://github.com/dgeb/grunt-ember-templates#templatecompilerpath-and-handlebarspath

I added this to my config\application.js

"emberTemplates": {
  "options": {
    templateCompilerPath: 'vendor/dev/ember-template-compiler.js',
    handlebarsPath: 'vendor/js/handlebars.js'
  }
},  

It compiles now and works like a charm and fyi, the expression i was compiling was this one:

      {{#each item in pages}}
        {{#link-to 'users.index' (query-params page=item.page_id) class="btn btn-default btn-sm"}}{{item.page_id}}{{/link-to}}
      {{/each}}

[davemo]

Nice to see you got it solved @eibrahim :)

[davemo]

Also, of use to you in the future may be the lineman config command which spits out configuration info and can be used to drill down to specific configurations, ie: lineman config handlebars

[searls]

Oh it wasn't clear at all that you were using ember. Lineman core ships with vanilla handlebars. Do you have the lineman-ember plugin installed for basic setup of the ember handlebars task?

On Thu, Apr 17, 2014 at 4:59 PM, David Mosher notifications@github.com wrote:

Nice to see you got it solved @eibrahim :)

Reply to this email directly or view it on GitHub: https://github.com/linemanjs/lineman/issues/251#issuecomment-40761989

[eibrahim]

yes, i have the ember plugin and it works great. I just wanted to upgrade my hb compilers which now works. thanks guys.

[searls]

Yeah sorry about the confusion. Same instructions as post 1 should have applied but for the ember hb module. 

I'll review this this weekend

On Fri, Apr 18, 2014 at 10:16 AM, eibrahim notifications@github.com wrote:

yes, i have the ember plugin and it works great. I just wanted to upgrade my hb compilers which now works. thanks guys.

Reply to this email directly or view it on GitHub: https://github.com/linemanjs/lineman/issues/251#issuecomment-40811528

[searls]

This has now been addressed by upgrading dependencies directly in lineman-ember@0.0.3