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Add prefix option to asset_hash (#1949)

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This allows manually changing the filename so that fiel header changes
can be reflected on the CDN. E.g. if you turn on crossOrigin serving
(CORS) the asset hash doesn't change, but the CDN cache needs to be
broken in order to pickup the new header.
This commit is contained in:
Adam Heath 2016-07-03 08:55:25 +08:00 committed by Thomas Reynolds
parent ea39d16d81
commit 389e3f5a8c
8 changed files with 65 additions and 1 deletions
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14
middleman-core/features/asset_hash.feature
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@ -308,3 +308,17 @@ Feature: Assets get file hashes appended to them and references to them are upda
| javascripts/application.js.map |
And the file "javascripts/application-4553338c.js" should contain "//# sourceMappingURL=application.js-22cc2b5f.map"
Scenario: Hashes can contain a prefix
Given a successfully built app at "asset-hash-prefix"
When I cd to "build"
Then the following files should exist:
| index.html |
| javascripts/application-myprefix-4553338c.js |
| javascripts/application.js-myprefix-22cc2b5f.map |
| index.html |
And the following files should not exist:
| javascripts/application.js |
| javascripts/application.js.map |
And the file "javascripts/application-myprefix-4553338c.js" should contain "//# sourceMappingURL=application.js-myprefix-22cc2b5f.map"

7
middleman-core/fixtures/asset-hash-prefix/config.rb Normal file
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@ -0,0 +1,7 @@
activate :asset_hash,
prefix: "myprefix-"
activate :relative_assets
activate :directory_indexes

16
middleman-core/fixtures/asset-hash-prefix/lib/middleware.rb Normal file
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@ -0,0 +1,16 @@
class Middleware
def initialize(app)
@app = app
end
def call(env)
status, headers, response = @app.call(env)
body = ''
response.each {|part| body += part }
if (env["PATH_INFO"] =~ /css$/)
body += "\n/* Added by Rack filter */"
status, headers, response = Rack::Response.new(body, status, headers).finish
end
[status, headers, response]
end
end

6
middleman-core/fixtures/asset-hash-prefix/source/index.html.erb Normal file
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@ -0,0 +1,6 @@
<% content_for :head do %>
<title>The Middleman!</title>
<% end %>
<h1>Testing the sitemap hashing</h1>
<br /><br /><br />

2
middleman-core/fixtures/asset-hash-prefix/source/javascripts/application.js Normal file
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@ -0,0 +1,2 @@
function foo(){var message="HEY THERE FRIEND!";var para=document.createElement("p");para.innerHTML=message;var body=document.getElementsByTagName("body")[0];body.insertBefore(para,body.firstChild)}window.onload=foo;
//# sourceMappingURL=application.js.map

1
middleman-core/fixtures/asset-hash-prefix/source/javascripts/application.js.map Normal file
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@ -0,0 +1 @@
{"version":3,"sources":["source/javascripts/application.js"],"names":["foo","message","para","document","createElement","innerHTML","body","getElementsByTagName","insertBefore","firstChild","window","onload"],"mappings":"AAAA,QAASA,OACP,GAAIC,SAAU,mBACd,IAAIC,MAAOC,SAASC,cAAc,IAClCF,MAAKG,UAAYJ,OACb,IAAIK,MAAOH,SAASI,qBAAqB,QAAQ,EAC/CD,MAAKE,aAAaN,KAAMI,KAAKG,YAGpCC,OAAOC,OAASX"}

17
middleman-core/fixtures/asset-hash-prefix/source/layout.erb Normal file
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@ -0,0 +1,17 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<%= javascript_include_tag "application" %>
<%= yield_content :head %>
</head>
<body class="<%= page_classes %>">
<div id="main" role="main">
<%= yield %>
</div>
</body>
</html>

3
middleman-core/lib/middleman-core/extensions/asset_hash.rb
View file

@ -6,6 +6,7 @@ class Middleman::Extensions::AssetHash < ::Middleman::Extension
option :exts, nil, 'List of extensions that get asset hashes appended to them.'
option :ignore, [], 'Regexes of filenames to skip adding asset hashes to'
option :rewrite_ignore, [], 'Regexes of filenames to skip processing for path rewrites'
option :prefix, '', 'Prefix for hash'
def initialize(app, options_hash={}, &block)
super
@ -92,7 +93,7 @@ class Middleman::Extensions::AssetHash < ::Middleman::Extension
::Digest::SHA1.hexdigest(response.body)[0..7]
end
resource.destination_path = resource.destination_path.sub(/\.(\w+)$/) { |ext| "-#{digest}#{ext}" }
resource.destination_path = resource.destination_path.sub(/\.(\w+)$/) { |ext| "-#{options.prefix}#{digest}#{ext}" }
resource
end