grunt-md5filename

Convert file names to MD5.

ex.) octocat.png -> c29b1fd35e7e51210f3264d567650ac7

Getting Started

This plugin requires Grunt ~0.4.0

If you haven't used Grunt before, be sure to check out the Getting Started guide, as it explains how to create a Gruntfile as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:

npm install grunt-md5filename --save-dev

Once the plugin has been installed, it may be enabled inside your Gruntfile with this line of JavaScript:

grunt.loadNpmTasks('grunt-md5filename');

This plugin was designed to work with Grunt 0.4.x.

MD5filename task

Run this task with the grunt md5filename command.

Task targets, files and options may be specified according to the grunt Configuring tasks guide.

Options

pathType

Type: String Default: 'filename'

select MD5 target for file name or file name with path.

• filename
  • file name
  • ex)

octcat.png
->  md5('octcat.png')
c29b1fd35e7e51210f3264d567650ac7

• filepath
  • file name with path
  • ex)

img/github/octocat.png
->  md5('img/github/octocat.png')
ea8bfe94d1b4278fcd9dca963dde3e00

keepBasename

Type: Boolean Default: false

converted file name add to filename(exclude extension).

octcat.png
-> 'octcat' + '-' + md5(octcat.png)
octcat-c29b1fd35e7e51210f3264d567650ac7

keepExtension

Type: Boolean Default: false

converted file name add to extension.

octcat.png
-> md5(octcat.png) + '.png'
c29b1fd35e7e51210f3264d567650ac7.png

saltPrefix

Type: String Default: ''

prefix salt

octcat.png
-> md5('__PREFIX__octcat.png')
4dd44b339b8ee57d21894ac57c8ca571

saltSuffix

Type: String Default: ''

suffix salt

octcat.png
-> md5('octcat.png__SUFFIX__')
d43bc35325462bf21a3c7fba0902ed86

ignorePatterns

Type: Array Default: []

ignore file pattern

octcat.png
-> ignorePatterns: ['*.png'],
octcat.png

hashFile

Type: String Default: null

save hashmap file, json format.

{
  "src/octcat.png": "dest/c29b1fd35e7e51210f3264d567650ac7",
  "src/img/github/octocat.png": "dest/img/github/ea8bfe94d1b4278fcd9dca963dde3e00"
}

specification changes notice After v0.1.5, json hashmap file specification changes. Dest path changes to Grunt root directory relative path.

hashLength

Type: Number Default: null (32)

split the character length of a hash digest hex value to shorten string. MD5 is 32 characters in length default.

octcat.png
->  md5('octcat.png'), hashLength = 8
c29b1fd3

debug

Type: Boolean Default: false

output debug log.

File 'original/img/github/octocat.png' to 'htdocs/img/github/c29b1fd35e7e51210f3264d567650ac7.png' created.
...
…

Usage Examples

md5filename: {
  build: {
    options: {
      keepBasename: false,
      keepExtension: true,
      pathType: 'filename',
      hashFile: 'tmp/hash.json',
      hashLength: 20,
      debug: true,
    },
    expand: true,
    cwd: 'original/img/thumbnails/',
    src: ['**/*.{png,jpg}'],
    dest: 'htdocs/img/thumbnails/',
  },
}

Release History

• 2014-03-28   v0.1.5   Json hashmap file specification changes. Dest path changes to Grunt root directory relative path.
• 2013-12-13   v0.1.4   Add ignorePatterns option.
• 2013-08-25   v0.1.3   Add hashLength option.
• 2013-06-18   v0.1.2   Change hashFile path.
• 2013-06-18   v0.1.1   Support hashFile option.
• 2013-06-13   v0.1.0   Init.

Task submitted by Masayuki Ishikawa