base64 doesn't work because relative paths get messed up

[TWiStErRob]

For this config:

font_name: iconfont
css_selector: .icon-{{glyph}}
no_hash: true
# removing this line makes it work, but of course then the font is not embedded
base64: true
force: true
debug: true
input:
  vectors: vectors
output:
  fonts: ../../assets/fonts
  css: ../../_sass
templates:
  - scss
preprocessor_path: ../fonts/

I get this exception:

RUBY/lib/ruby/gems/2.2.0/gems/fontcustom-1.3.8/lib/fontcustom/generator/template.rb:181:in `binread': No such file or directory @ rb_sysopen - ../../assets/fonts/../assets/fonts/iconfont.woff (Errno::ENOENT)
        from RUBY/lib/ruby/gems/2.2.0/gems/fontcustom-1.3.8/lib/fontcustom/generator/template.rb:185:in `woff_base64'
        from RUBY/lib/ruby/gems/2.2.0/gems/fontcustom-1.3.8/lib/fontcustom/generator/template.rb:148:in `font_face'
        from (erb):5:in `template'
        from RUBY/lib/ruby/2.2.0/erb.rb:863:in `eval'
        from RUBY/lib/ruby/2.2.0/erb.rb:863:in `result'
        from RUBY/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/actions/file_manipulation.rb:116:in `block in template'
        from RUBY/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/actions/create_file.rb:53:in `call'
        from RUBY/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/actions/create_file.rb:53:in `render'
        from RUBY/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/actions/create_file.rb:46:in `identical?'
        from RUBY/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/actions/create_file.rb:72:in `on_conflict_behavior'
        from RUBY/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/actions/empty_directory.rb:113:in `invoke_with_conflict_check'
        from RUBY/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/actions/create_file.rb:60:in `invoke!'
        from RUBY/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/actions.rb:94:in `action'
        from RUBY/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/actions/create_file.rb:25:in `create_file'
        from RUBY/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/actions/file_manipulation.rb:115:in `template'
        from RUBY/lib/ruby/gems/2.2.0/gems/fontcustom-1.3.8/lib/fontcustom/generator/template.rb:59:in `block in create_files'
        from RUBY/lib/ruby/gems/2.2.0/gems/fontcustom-1.3.8/lib/fontcustom/generator/template.rb:55:in `each'
        from RUBY/lib/ruby/gems/2.2.0/gems/fontcustom-1.3.8/lib/fontcustom/generator/template.rb:55:in `create_files'
        from RUBY/lib/ruby/gems/2.2.0/gems/fontcustom-1.3.8/lib/fontcustom/generator/template.rb:21:in `generate'
        from RUBY/lib/ruby/gems/2.2.0/gems/fontcustom-1.3.8/lib/fontcustom/base.rb:51:in `start_generators'
        from RUBY/lib/ruby/gems/2.2.0/gems/fontcustom-1.3.8/lib/fontcustom/base.rb:22:in `compile'
        from RUBY/lib/ruby/gems/2.2.0/gems/fontcustom-1.3.8/lib/fontcustom/cli.rb:77:in `compile'
        from RUBY/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/command.rb:27:in `run'
        from RUBY/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/invocation.rb:126:in `invoke_command'
        from RUBY/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor.rb:359:in `dispatch'
        from RUBY/lib/ruby/gems/2.2.0/gems/thor-0.19.1/lib/thor/base.rb:440:in `start'
        from RUBY/lib/ruby/gems/2.2.0/gems/fontcustom-1.3.8/bin/fontcustom:5:in `<top (required)>'
        from RUBY/bin/fontcustom:23:in `load'
        from RUBY/bin/fontcustom:23:in `<main>'

Values of some variables at the failure:

@options[:output][:fonts]=../../assets/fonts
#{@font_path}.woff=../assets/fonts/iconfont.woff
woff_path=../../assets/fonts/../assets/fonts/iconfont.woff

There's one too many File.join for woff_path, but that doesn't affect the result.

[mgrsskls]

Exactly the same here!

[baofengs]

Got the same problem~ BUT I fixed it

I did some changes in this file /usr/local/lib/ruby/gems/2.3.0/gems/fontcustom-2.0.0/lib/fontcustom/generator/template.rb

def woff_base64
    # woff_path = File.join(@options[:output][:fonts], "#{@font_path}.woff")
    woff_path = "#{@font_path_alt}.woff"
    Base64.encode64(File.binread(File.join(woff_path))).gsub("\n", "")
end