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Zinc - Draft 5

Design Goals

  • Verifiable & consistent file distributions
  • Transparent and human friendly
  • Versioned
  • S3/CloudFront compatible

Terminology

  • Bundle - group of related files. Bundles should have an unique id.
  • Catalog - A server-side listing of bundles that can be downloaded
  • Repo - Client side copies of bundles pulled from remote Catalogs
  • Manifest - describes all files in a bundle
  • Distribution - named version. Sort of like a branch but not really.

Workflow

Set up some assets

 catburp-assets/
  |- images/
  |  |- cat1.jpg
  |  |- cat2.jpg
  |- sounds/
     |- burp.wav

Create a Zinc catalog

$ zinc catalog:create /path/to/catalog
Created new Zinc catalog 'default' at /path/to/catalog

$ zinc list /path/to/repo
0 bundles

 <catalog>/
 |- index.json

Create a Zinc bundle in the catalog

$ cd /path/to/catalog
$ zinc bundle:update catburp-assets ~/catburp-assets

index.json

{
	'format' : '1',
	'bundles' : {
    	'catburp' : [1],
   },
	'distributions' : {
	}
}
manifest.json
{
	"bundle": "fr-Nightlife", 
    "files": {
        "Nightlife.js": {
			"sha": "764c6fc121871082e0f0a71c79f1df687b8b741a", 
			"formats": {
				"gzip": {
					"size" : 123123123
				},
			"formats": {
				"gzip": 123123123
				}
			}
		}
        "audio/acommanderaboire.caf": "0b4aeb04c7c064c034dcbbbd2f8d436095f0342a", 
        "audio/derencontrerquelquun.caf": "8e0b302f66b17ee6c5ecfc43dc3734b832c42323", 
        "zincfile": "ae0975988a976bb5ad437585adc5b97d6543499b"
	}, 
    "version": 1
}

Zinc - Draft 4

Set up some assets

 catburp-assets/
  |- images/
  |  |- cat1.jpg
  |  |- cat2.jpg
  |- sounds/
     |- burp.wav

Create a Zinc repo

$ zinc repo:create /path/to/repo
Created new Zinc repo 'default' at /path/to/repo

$ zinc list /path/to/repo
0 bundles

 <repo>/
 |- index.json
 |- repo.json

index.json

{
  'format' : '1',
  'bundles' : {
     'catburp' : {
       'current' : 21,
       'test' : 22,
     'sockpotatoes': {
       'current' : 20,
     }
   }
}

bundles.json

{
  'format' : '1',
  'bundles' : {
     'catburp' : [20, 21, 22],
     'sockpotatoes': [19, 20],
   }
}

index.json (2)

{
	'format' : '1',
	'bundles' : {
    	'catburp' : [20, 21, 22],
    	'sockpotatoes': [19, 20],
   },
	'distributions' : {
		'current' : {
			'catburp' : 21,
			'sockpotatoes' : 20,
		},
		'test' : {
			'catburp' : 22,
		},
	},
}

Name and set as current repo

$ zinc repo:name /path/to/repo 'myrepo'

$ zinc list myrepo
0 bundles

$ zinc repo:use myrepo
Now using 'myrepo' (/path/to/repo)

$ zinc list
0 bundles

Create a new bundle in the repo

$ zinc bundle:create catburp-assets/
Bundle name [catburp-assets]: 
Creating bundle 'catburp-assets' in 'myrepo'
Importing files .. done
Created v1 of 'catburp-assets'
Create a 'current' distribution? [Y/n] Y
Creating 'current' distribution for v1 of 'catburp-assets'

catburp-assets/
  |- images/
  |  |- cat1.jpg
  |  |- cat2.jpg
  |- sounds/
  |  |- burp.wav
  |- zincinfo

Create a new bundle in the repo 2

$ zinc bundle:create catburp-assets
Creating bundle 'catburp-assets' in 'myrepo'
Importing files .. done

$ zinc bundle:update catburp-assets catburp-assets/
Created v1 of 'catburp-assets'
Create a 'current' distribution? [Y/n] Y
Creating 'current' distribution for v1 of 'catburp-assets'

catburp-assets/
  |- images/
  |  |- cat1.jpg
  |  |- cat2.jpg
  |- sounds/
  |  |- burp.wav
  |- zincfile

zincfile

A zincfile will be create by default:

[spec "default"]
origin = .
repo = file:///path/to/repo
bundle = "catburp-assets"

zincfile

But you could edit it like this:

[spec "default" "local"]
origin = .
repo = file:///path/to/repo
bundle = "catburp-assets"

[spec "mindsnacks-aws"]
origin = "."
repo = "s3:///asset-bucket"
bundle = "catburp-assets"

zincinfo

  • .zincinfo

  • .zinc/info

    [repo "myrepo"] url = file:///path/to/repo

    [bundle] name = 'catburp-assets'

zinc repo

Zinc - Draft 3

Design Goals

  • Verifiable & consistent file distributions
  • Transparent and human friendly
  • Versioned
  • S3/CloudFront compatible

Terminology

  • Repository (or Repo) - top level zinc concept. Contains everything else.
  • Bundle - group of files. A repo contains 1 or more bundles.
  • Manifest - describes all files in a bundle
  • Distribution - named version. Sort of like a branch but not really

Workflow

Set up some assets

 catburp-assets/
  |- images/
  |  |- cat1.jpg
  |  |- cat2.jpg
  |- sounds/
     |- burp.wav

Create a Zinc repo

$ zinc init catburp
Created new Zinc repo at ./myrepo

$ zinc list myrepo
0 bundles

Add assets to the repo

$ zinc update catburp ~/catburp-assets
Bundle 'catburp' does not exist. Create (Y/n)? Y
Creating version 1 of bundle 'catburp' ..
Importing files ..
Updating index
Done

$ zinc list myrepo
1 bundle:
  catburp: 1

$ zinc list myrepo catburp
  catburp-1:
    images/cat1.jpg
    images/cat2.jpg
    sounds/burp.wav

$ zinc list myrepo catburp@1
  images/cat1.jpg
  images/cat2.jpg
  sounds/burp.wav

Verify the repo

$ zinc verify myrepo
Verifying all bundles .. ok!
Orphaned objects: 0

Publish the repo

$ zinc publish myrepo s3://myassets
Publishing all files .. done!

# zinc activate myrepo catburp@1
This will set catburp 1 to you activate distribution. You sure bro (Y/n)? Y
Updating index .. done!

Update the repo

 catburp-assets/
  |- images/
  |  |- cat1.jpg
  |  |- cat2.jpg
  |  |- cat3.jpg
  |- sounds/
     |- burp.wav

$ zinc update catburp ~/catburp-assets
Creating version 2 of bundle 'catburp' ..
1 file added, 0 files modified, 0 files removed

$ zinc list myrepo
1 bundle:
  catburp: 1, 2

$ zinc publish myrepo s3://myassets
Publishing all files .. done!

# zinc activate myrepo catburp@2
This will set catburp 2 to you activate distribution. You sure bro (Y/n)? Y

Zinc Repo

 <repo>/
 |- index.json
 |- zinc/
 |  |- config
 |  |- bundles
 |- objects/
 |  |- burp@3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21.wav
 |  |- burp@1232854d83448fed0b95141d6da0c2c3a85fbe21.wav
 |  |- cat1@3716da9df43aa8a45fc40432706403e5fab6db2d.jpg
 |  |- cat2@a5a5fd2dd22f9081bed0546fe871ef486321ce49.jpg
 |  |- cat2@99999999999999999ed0546fe871ef486321ce49.jpg
 |  |- potatoes@1fb4cd01299779e4c48f0a49a7bd4f3b58a03be0.doc
 |  |- socks@f78200b67a1ee01a140eb3c3ad8fef9ce904ab4a.pdf
 |  |- socks@888888888888881a140eb3c3ad8fef9ce904ab4a.pdf
 |- manifests/
 |  |- catburp-21.json
 |  |- catburp-21.json
 |  |- catburp-22.json
 |  |- sockpotatoes-19.json
 |  |- sockpotatoes-20.json
 |- archives/
    |- catburp-21.zip
    |- catburp-21.zip
    |- catburp-22.zip
    |- sockpotatoes-19.zip
    |- sockpotatoes-20.zip

index.json

{
  'zinc_format' : '1',
  'bundles' : {
     'catburp' : {
       'current' : 21,
       'test' : 22,
     'sockpotatoes': {
       'current' : 20,
     }
   }
}

zinc/config

[core]
    ignorecase = true
[remote "s3"]
	url = s3://content

zinc/bundles

catburp: 20, 21, 22
sockpotatoes: 19, 20

catburp-21.json

{
   'versionkk' : 21,
   'files' : {
      'images/cat1.jpg' : 'cat1@3716da9df43aa8a45fc40432706403e5fab6db2d.jpg',
      'images/cat2.jpg' : 'cat2@a5a5fd2dd22f9081bed0546fe871ef486321ce49.jpg',
      'sounds/burp.wav' : 'burp@3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21.wav',
    },
}

Client

  1. Fetch /index.json
  2. Look up desired bundle, distribution
  3. Download, Download, Download
  4. Verify when finished downloaded
  5. Update current manifest (symlink or otherwise)

Zinc - Draft 2

Design Goals

  • Verifiable & consistent file distributions
  • Transparent and human friendly
  • Versioned, with minor and major updates
  • S3/CloudFront compatible

Terminology

  • Repository (or Repo) - top level zinc concept. Contains everything else.
  • Bundle - group of files. A repo contains 1 or more bundles.

Zinc Repo

 <repo>/
 |- info.json
 |- objects/
 |  |- burp+3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21.wav
 |  |- cat1+3716da9df43aa8a45fc40432706403e5fab6db2d.jpg
 |  |- cat2+a5a5fd2dd22f9081bed0546fe871ef486321ce49.jpg
 |  |- potatoes+1fb4cd01299779e4c48f0a49a7bd4f3b58a03be0.doc
 |  |- socks+f78200b67a1ee01a140eb3c3ad8fef9ce904ab4a.pdf
 |- archives/
 |  |- catburp+cd9e290639a98fbbb797685f0c99f3c977692bc9.zip
 |  |- sockpotatoes+51b8d94f26703b7d56cea32c93b8e79971e756d9.zip
 |- manifests/
    |- catburp+cd9e290639a98fbbb797685f0c99f3c977692bc9.json
    |- sockpotatoes+51b8d94f26703b7d56cea32c93b8e79971e756d9.json


 <repo>/
 |- info.json
 |- objects/
 |  |- burp+3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21.wav
 |  |- cat1+3716da9df43aa8a45fc40432706403e5fab6db2d.jpg
 |  |- cat2+a5a5fd2dd22f9081bed0546fe871ef486321ce49.jpg
 |  |- potatoes+1fb4cd01299779e4c48f0a49a7bd4f3b58a03be0.doc
 |  |- socks+f78200b67a1ee01a140eb3c3ad8fef9ce904ab4a.pdf
 |- archives/
 |  |- catburp+cd9e290639a98fbbb797685f0c99f3c977692bc9.zip
 |  |- sockpotatoes+51b8d94f26703b7d56cea32c93b8e79971e756d9.zip
 |- manifests/
    |- catburp+cd9e290639a98fbbb797685f0c99f3c977692bc9.json
    |- sockpotatoes+51b8d94f26703b7d56cea32c93b8e79971e756d9.json

 |- bundles/
    |- catburp/
       |- manifest.json
       |- archive.zip

 |- bundles/
    |- catburp+cd9e290639a98fbbb797685f0c99f3c977692bc9.json
    |- catburp-20.json
    |- sockpotatoes+51b8d94f26703b7d56cea32c93b8e79971e756d9.json



 <repo>/
 |- index.json
 |- objects/
 |  |- burp+3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21.wav
 |  |- cat1+3716da9df43aa8a45fc40432706403e5fab6db2d.jpg
 |  |- cat2+a5a5fd2dd22f9081bed0546fe871ef486321ce49.jpg
 |  |- potatoes+1fb4cd01299779e4c48f0a49a7bd4f3b58a03be0.doc
 |  |- socks+f78200b67a1ee01a140eb3c3ad8fef9ce904ab4a.pdf
 |- bundles/
    |- catburp-20.json
    |- sockpotatoes-20.json
    |- sockpotatoes-21.json
    |- archives/
       |- catburp-20.zip
       |- sockpotatoes-20.zip
       |- sockpotatoes-21.zip

 <repo>/
 |- index.json
 |- objects/
 |  |- 3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21
 |  |- 3716da9df43aa8a45fc40432706403e5fab6db2d
 |  |- a5a5fd2dd22f9081bed0546fe871ef486321ce49
 |  |- 1fb4cd01299779e4c48f0a49a7bd4f3b58a03be0
 |  |- f78200b67a1ee01a140eb3c3ad8fef9ce904ab4a
 |- bundles/
    |- catburp/
       |- catburp-20.json
       |- catburp-20.zip
       |- catburp-21.json
       |- catburp-21.zip
    |- sockpotatoes-20.json
    |- sockpotatoes-21.json
    |- archives/
       |- catburp-20.zip
       |- sockpotatoes-20.zip
       |- sockpotatoes-21.zip


 <repo>/
 |- index.json
 |- objects/
 |  |- 3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21
 |  |- 3716da9df43aa8a45fc40432706403e5fab6db2d
 |  |- a5a5fd2dd22f9081bed0546fe871ef486321ce49
 |  |- 1fb4cd01299779e4c48f0a49a7bd4f3b58a03be0
 |  |- f78200b67a1ee01a140eb3c3ad8fef9ce904ab4a
 |- bundles/
     |- catburp-20.json
     |- catburp-21.json

index.json

{
  'zinc_format' : '1',
  'bundles' : {
     'catburp' : {
       'current' : 20,
       'all' : [1,2,3,4,5,6,8,20],
     'sockpotatoes' [21],
   }
}


{
  'zinc_format' : '1',
  'bundles' : {
     'catburp' : 21,
     'sockpotatoes' : 20,
   }
}

info.json

{
  'zinc_format' : '1',
  'zinc_repo' : {
     'versions' : [20, 21],
     'bundles' : {
        20 : {
          'catburp' : {
            'manifest' : 'f78200b67a1ee01a140eb3c3ad8fef9ce904ab4a',
            'archive'  : '3716da9df43aa8a45fc40432706403e5fab6db2d',
           },
           'sockpotatoes' : {
             'manifest' : 'f78200b67a1ee01a140eb3c3ad8fef9ce904ab4a',
             'archive'  : '3716da9df43aa8a45fc40432706403e5fab6db2d',
            }
         },
        21 : {
          'catburp' : {
            'manifest' : 'f78200b67a1ee01a140eb3c3ad8fef9ce904ab4a',
            'archive'  : '3716da9df43aa8a45fc40432706403e5fab6db2d',
           },
           'sockpotatoes' : {
             'manifest' : 'f78200b67a1ee01a140eb3c3ad8fef9ce904ab4a',
             'archive'  : '3716da9df43aa8a45fc40432706403e5fab6db2d',
            }
         }
      }
   }
}

index.json

{
  'zinc_format' : '1',
     'bundles' : {
        'catburp' : 'bundles/catburp-20.json',
        'sockpotatoes' : 'bundles/sockpotatoes-21.json',
      }
   }
}

manifest: catburp+cd9e290639a98fbbb797685f0c99f3c977692bc9.json

{
   'rev' : 20,
   'archive' : 'archives/catburp-20.zip',
   'files' : {
      'images/cat1.jpg' : 'objects/cat1+3716da9df43aa8a45fc40432706403e5fab6db2d.jpg',
      'images/cat2.jpg' : 'objects/cat2+a5a5fd2dd22f9081bed0546fe871ef486321ce49.jpg',
      'sounds/burp.wav' : 'objects/burp+3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21.wav',
    },
    'bundles' : {
      'sockpotatoes' : 'bundles/sockpotatoes-20.json',
    } 
}

manifest: sockpotatoes+51b8d94f26703b7d56cea32c93b8e79971e756d9.json

{
   'version' : 20
   'files' {
      'potatoes.doc' : 'potatoes+1fb4cd01299779e4c48f0a49a7bd4f3b58a03be0.doc',
      'socks.pdf'    : 'socks+f78200b67a1ee01a140eb3c3ad8fef9ce904ab4a.pdf',
    }
}

Zinc - Draft 1

Design Goals

  • Verifiable & consistent file distributions
  • Transparent and human friendly
  • Versioned, with minor and major updates
  • S3/CloudFront compatible

Example

Say we want to distribute these set of assets:

 src/
 |- images/
 |  |- cat1.jpg
 |  |- cat2.jpg
 |- sounds/
 |  |- burp.wav

Create initial Zinc dist

$ zinc update src dst

Output

 dst/
 |- info.json
 |- objects/
 |  |- images/
 |  |  | - cat1+3716da9df43aa8a45fc40432706403e5fab6db2d.jpg
 |  |  | - cat2+a5a5fd2dd22f9081bed0546fe871ef486321ce49.jpg
 |  |- sounds/
 |      |- burp+3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21.wav
 |- versions/
     |- 1/
        |- manifest.json

info.json

{
  'zinc_format' : '1',
  'url' : 'http://localhost/data/,
}

manifest.json

{
   'version' : '1.1',
   'files' {
      'images/cat1.jpg' : '3716da9df43aa8a45fc40432706403e5fab6db2d',
      'images/cat2.jpg' : 'a5a5fd2dd22f9081bed0546fe871ef486321ce49',
      'sounds/burp.wav' : '3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21',
    }
}

Update a file

Now say cat1.jpg was updated. We update the zinc dist the same way:

$ zinc update <src> <dst>

A new copy of cat1.jpg is put in the repo. The manifest is also updated with the new SHA and minor version.

Output

 dst/
 |- info.json
 |- objects/
 |  |- images/
 |  |  | - cat1+3716da9df43aa8a45fc40432706403e5fab6db2d.jpg
 |  |  | - cat1+fca119db2818c61b859b1bac96f35f83533214fe.jpg
 |  |  | - cat2+a5a5fd2dd22f9081bed0546fe871ef486321ce49.jpg
 |  |- sounds/
 |      |- burp+3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21.wav
 |- versions/
     |- 1/
        |- manifest.json

versions/1/manifest.json

{
   'version' : '1.2',
   'files' {
      'images/cat1.jpg' : 'fca119db2818c61b859b1bac96f35f83533214fe',
      'images/cat2.jpg' : 'a5a5fd2dd22f9081bed0546fe871ef486321ce49',
      'sounds/burp.wav' : '3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21',
    }
}

Cleaning

By default, older files aren't removed immediately. To remove them:

$ zinc clean <dst>

Adds and Deletes

If at lest one file is added or removed, a new major version is created.

 src/
 |- help.html
 |- images/
 |  |- cat1.jpg
 |- sounds/
 |  |- burp.wav

Here cat2.jpg was deleted and help.html was added. If we zinc update again, a new version will be created

 dst/
 |- info.json
 |- objects/
 |  |- help+6145ea18fb1fc08110ba4622b5481b5ef74d2cd5.html
 |  |- images/
 |  |  | - cat1+fca119db2818c61b859b1bac96f35f83533214fe.jpg
 |  |  | - cat2+a5a5fd2dd22f9081bed0546fe871ef486321ce49.jpg
 |  |- sounds/
 |      |- burp+3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21.wav
 |- versions/
     |- 1/
     |  |- manifest.json
     |- 2/
        |- manifest.json

versions/1/manifest.json is unchanged

versions/2/manifest.json

{
   'version' : '2.1',
   'files' {
      'images/cat1.jpg' : 'fca119db2818c61b859b1bac96f35f83533214fe',
      'sounds/burp.wav' : '3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21',
      'help.html'       : '6145ea18fb1fc08110ba4622b5481b5ef74d2cd5',
    }
}

FAQs

Why doesn't Zinc do (insert VCS feature)?

Zinc is not a version control system.

Why JSON?

JSON has become a de-facto interchange format, yada, yada, and is human-friendly.

Attic, random notes

other layout ideas, draft 2

 <repo>/
 |- info.json
 |- objects/
 |  |- cat1+3716da9df43aa8a45fc40432706403e5fab6db2d.jpg
 |  |- cat2+a5a5fd2dd22f9081bed0546fe871ef486321ce49.jpg
 |  |- burp+3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21.wav
 |- bundles/
    |- catburp.json

 <repo>/
 |- info.json
 |- objects/
 |  |- cat1+3716da9df43aa8a45fc40432706403e5fab6db2d.jpg
 |  |- cat2+a5a5fd2dd22f9081bed0546fe871ef486321ce49.jpg
 |  |- burp+3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21.wav
 |- bundles/
    |- catburp/
       |- manifest.json
       |- catburp.zip

  1. / |- info.json |- objects/ | |- cat1+3716da9df43aa8a45fc40432706403e5fab6db2d.jpg | |- cat2+a5a5fd2dd22f9081bed0546fe871ef486321ce49.jpg | |- burp+3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21.wav |- bundles/ |- catburp.zip |- catburp.zip.zsync |- catburp/ |- manifest.json

    / |- info.json |- objects/ | |- burp+3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21.wav | |- cat1+3716da9df43aa8a45fc40432706403e5fab6db2d.jpg | |- cat2+a5a5fd2dd22f9081bed0546fe871ef486321ce49.jpg | |- potatoes+1fb4cd01299779e4c48f0a49a7bd4f3b58a03be0.doc | |- socks+f78200b67a1ee01a140eb3c3ad8fef9ce904ab4a.pdf |- bundles/ |- catburp.zip |- catburp.zip.zsync |- catburp.json |- sockpotatoes.zip |- sockpotatoes.zip.zsync |- sockpotatoes.zip.json

    / |- info.json |- objects/ | |- burp+3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21.wav | |- cat1+3716da9df43aa8a45fc40432706403e5fab6db2d.jpg | |- cat2+a5a5fd2dd22f9081bed0546fe871ef486321ce49.jpg | |- potatoes+1fb4cd01299779e4c48f0a49a7bd4f3b58a03be0.doc | |- socks+f78200b67a1ee01a140eb3c3ad8fef9ce904ab4a.pdf |- bundles/ |- catburp+20.zip |- catburp+20.zip.zsync |- catburp+20.json |- sockpotatoes+20.zip |- sockpotatoes+20.zip.zsync |- sockpotatoes+20.zip.json

    / |- info.json |- objects/ | |- burp+3e36854d83448fed0b9c4a6d6da0c2c3a85fbe21.wav | |- cat1+3716da9df43aa8a45fc40432706403e5fab6db2d.jpg | |- cat2+a5a5fd2dd22f9081bed0546fe871ef486321ce49.jpg | |- potatoes+1fb4cd01299779e4c48f0a49a7bd4f3b58a03be0.doc | |- socks+f78200b67a1ee01a140eb3c3ad8fef9ce904ab4a.pdf |- bundles/ |-20/ |- catburp.zip |- catburp.zip.zsync |- catburp.json |- sockpotatoes.zip |- sockpotatoes.zip.zsync |- sockpotatoes.zip.json

    { 'zinc_format' : '1', 'zinc_repo' : { 'version' : 20, 'bundles' : ['catburp', 'sockpotatoes'], } }