1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
---
lastmod: 2015-12-24
date: 2014-03-10
linktitle: Migrating from Jekyll
toc: true
menu:
main:
parent: tutorials
prev: /tutorials/mathjax
next: /tutorials/create-a-multilingual-site
title: Migrate to Hugo from Jekyll
weight: 10
---
**Note:** Hugo 0.15 comes with a `hugo import jekyll` command, see [import from Jekyll](/commands/hugo_import_jekyll/).
## Move static content to `static`
Jekyll has a rule that any directory not starting with `_` will be copied as-is to the `_site` output. Hugo keeps all static content under `static`. You should therefore move it all there.
With Jekyll, something that looked like
▾ <root>/
▾ images/
logo.png
should become
▾ <root>/
▾ static/
▾ images/
logo.png
Additionally, you'll want any files that should reside at the root (such as `CNAME`) to be moved to `static`.
## Create your Hugo configuration file
Hugo can read your configuration as JSON, YAML or TOML. Hugo supports parameters custom configuration too. Refer to the [Hugo configuration documentation](/overview/configuration/) for details.
## Set your configuration publish folder to `_site`
The default is for Jekyll to publish to `_site` and for Hugo to publish to `public`. If, like me, you have [`_site` mapped to a git submodule on the `gh-pages` branch](http://blog.blindgaenger.net/generate_github_pages_in_a_submodule.html), you'll want to do one of two alternatives:
1. Change your submodule to point to map `gh-pages` to public instead of `_site` (recommended).
git submodule deinit _site
git rm _site
git submodule add -b gh-pages git@github.com:your-username/your-repo.git public
2. Or, change the Hugo configuration to use `_site` instead of `public`.
{
..
"publishDir": "_site",
..
}
## Convert Jekyll templates to Hugo templates
That's the bulk of the work right here. The documentation is your friend. You should refer to [Jekyll's template documentation](http://jekyllrb.com/docs/templates/) if you need to refresh your memory on how you built your blog and [Hugo's template](/layout/templates/) to learn Hugo's way.
As a single reference data point, converting my templates for [heyitsalex.net](http://heyitsalex.net/) took me no more than a few hours.
## Convert Jekyll plugins to Hugo shortcodes
Jekyll has [plugins](http://jekyllrb.com/docs/plugins/); Hugo has [shortcodes](/doc/shortcodes/). It's fairly trivial to do a port.
### Implementation
As an example, I was using a custom [`image_tag`](https://github.com/alexandre-normand/alexandre-normand/blob/74bb12036a71334fdb7dba84e073382fc06908ec/_plugins/image_tag.rb) plugin to generate figures with caption when running Jekyll. As I read about shortcodes, I found Hugo had a nice built-in shortcode that does exactly the same thing.
Jekyll's plugin:
```ruby
module Jekyll
class ImageTag < Liquid::Tag
@url = nil
@caption = nil
@class = nil
@link = nil
// Patterns
IMAGE_URL_WITH_CLASS_AND_CAPTION =
IMAGE_URL_WITH_CLASS_AND_CAPTION_AND_LINK = /(\w+)(\s+)((https?:\/\/|\/)(\S+))(\s+)"(.*?)"(\s+)->((https?:\/\/|\/)(\S+))(\s*)/i
IMAGE_URL_WITH_CAPTION = /((https?:\/\/|\/)(\S+))(\s+)"(.*?)"/i
IMAGE_URL_WITH_CLASS = /(\w+)(\s+)((https?:\/\/|\/)(\S+))/i
IMAGE_URL = /((https?:\/\/|\/)(\S+))/i
def initialize(tag_name, markup, tokens)
super
if markup =~ IMAGE_URL_WITH_CLASS_AND_CAPTION_AND_LINK
@class = $1
@url = $3
@caption = $7
@link = $9
elsif markup =~ IMAGE_URL_WITH_CLASS_AND_CAPTION
@class = $1
@url = $3
@caption = $7
elsif markup =~ IMAGE_URL_WITH_CAPTION
@url = $1
@caption = $5
elsif markup =~ IMAGE_URL_WITH_CLASS
@class = $1
@url = $3
elsif markup =~ IMAGE_URL
@url = $1
end
end
def render(context)
if @class
source = "<figure class='#{@class}'>"
else
source = "<figure>"
end
if @link
source += "<a href=\"#{@link}\">"
end
source += "<img src=\"#{@url}\">"
if @link
source += "</a>"
end
source += "<figcaption>#{@caption}</figcaption>" if @caption
source += "</figure>"
source
end
end
end
Liquid::Template.register_tag('image', Jekyll::ImageTag)
```
is written as this Hugo shortcode:
<!-- image -->
<figure {{ with .Get "class" }}class="{{.}}"{{ end }}>
{{ with .Get "link"}}<a href="{{.}}">{{ end }}
<img src="{{ .Get "src" }}" {{ if or (.Get "alt") (.Get "caption") }}alt="{{ with .Get "alt"}}{{.}}{{else}}{{ .Get "caption" }}{{ end }}"{{ end }} />
{{ if .Get "link"}}</a>{{ end }}
{{ if or (or (.Get "title") (.Get "caption")) (.Get "attr")}}
<figcaption>{{ if isset .Params "title" }}
{{ .Get "title" }}{{ end }}
{{ if or (.Get "caption") (.Get "attr")}}<p>
{{ .Get "caption" }}
{{ with .Get "attrlink"}}<a href="{{.}}"> {{ end }}
{{ .Get "attr" }}
{{ if .Get "attrlink"}}</a> {{ end }}
</p> {{ end }}
</figcaption>
{{ end }}
</figure>
<!-- image -->
### Usage
I simply changed:
{% image full http://farm5.staticflickr.com/4136/4829260124_57712e570a_o_d.jpg "One of my favorite touristy-type photos. I secretly waited for the good light while we were "having fun" and took this. Only regret: a stupid pole in the top-left corner of the frame I had to clumsily get rid of at post-processing." ->http://www.flickr.com/photos/alexnormand/4829260124/in/set-72157624547713078/ %}
to this (this example uses a slightly extended version named `fig`, different than the built-in `figure`):
{{%/* fig class="full" src="http://farm5.staticflickr.com/4136/4829260124_57712e570a_o_d.jpg" title="One of my favorite touristy-type photos. I secretly waited for the good light while we were having fun and took this. Only regret: a stupid pole in the top-left corner of the frame I had to clumsily get rid of at post-processing." link="http://www.flickr.com/photos/alexnormand/4829260124/in/set-72157624547713078/" */%}}
As a bonus, the shortcode named parameters are, arguably, more readable.
## Finishing touches
### Fix content
Depending on the amount of customization that was done with each post with Jekyll, this step will require more or less effort. There are no hard and fast rules here except that `hugo server` is your friend. Test your changes and fix errors as needed.
### Clean up
You'll want to remove the Jekyll configuration at this point. If you have anything else that isn't used, delete it.
## A practical example in a diff
[Hey, it's Alex](http://heyitsalex.net/) was migrated in less than a _father-with-kids day_ from Jekyll to Hugo. You can see all the changes (and screw-ups) by looking at this [diff](https://github.com/alexandre-normand/alexandre-normand/compare/869d69435bd2665c3fbf5b5c78d4c22759d7613a...b7f6605b1265e83b4b81495423294208cc74d610).
|