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Commit d3b3d70

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jonathanongjonathanong
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‎.gitignore

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# Compiled source #
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###################
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*.com
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*.class
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*.dll
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*.exe
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*.o
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*.so
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# Packages #
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############
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# it's better to unpack these files and commit the raw source
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# git has its own built in compression methods
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*.7z
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*.dmg
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*.gz
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*.iso
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*.jar
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*.rar
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*.tar
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*.zip
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# Logs and databases #
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######################
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*.log
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*.sql
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*.sqlite
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# OS generated files #
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######################
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.DS_Store*
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ehthumbs.db
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Icon?
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Thumbs.db
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# Node.js #
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###########
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lib-cov
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*.seed
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*.log
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*.csv
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*.dat
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*.out
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*.pid
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*.gz
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pids
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logs
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results
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node_modules
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npm-debug.log
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# Git #
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#######
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*.orig
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*.BASE.*
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*.BACKUP.*
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*.LOCAL.*
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*.REMOTE.*
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# Components #
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##############
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/build
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/components

‎Makefile

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BIN = ./node_modules/.bin/
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NODE ?= node
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clean:
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@rm -rf build
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test:
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@$(NODE) $(BIN)mocha \
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--harmony-generators \
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--require should \
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--reporter spec \
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--timeout 10000 \
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--bail
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.PHONY: test clean

‎README.md

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# Compnent Flatten
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`.flatten()` command in [component-resolver](https://github.com/component/resolver.js). Stored in a separate repo for standalone usage, but tests are included in `resolver.js` for simplicity. Use `npm link` to test.
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The purpose of this method is to:
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- Flatten the dependency tree into the proper build order. The proper build order is (specifically for CSS):
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1. Remotes dependencies
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2. Local dependencies
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3. Component's files
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- Check for multiple versions of a remote dependency
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- Check for locals with conflicting names.
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## API
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```js
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var resolver = require('component-resolver');
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var flatten = require('flatten');
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resolver().getTree(function (err, tree) {
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if (err) throw err;
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var branches = flatten(tree);
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// do stuff with the branches
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})
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```
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### var nodes[] = flatten(tree, [check])
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`tree` is the result of `resolver`'s `.tree()` or `.getTree()` methods. If `check` is true, nodes will be populated with:
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- `.duplicates` - an object containing remote dependencies with multiple versions
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- `.conflicts` - an object containing local dependencies who have the same name
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## License
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The MIT License (MIT)
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Copyright (c) 2014 Jonathan Ong me@jongleberry.com
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.

‎index.js

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var semver = require('semver')
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/**
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* This probably belongs to a separate repo, but I'm lazy.
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*
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* returns the tree nodes, not the component.json,
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* so you can handle the resolved deps yourself.
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*
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* If `check` is true, this will check for duplicate dependencies
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* as well as locals with the same name.
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*
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* @param {Object} tree
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* @param {Boolean} check
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* @return {Array}
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* @api public
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*/
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module.exports = function (tree, check) {
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var resolved = []
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var deps = {}
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var dependencies = []
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var locals = []
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// duplicate dependencies
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var duplicates = {};
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// local name conflicts
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var conflicts = {};
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traverse(tree)
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// flatten the dependencies
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Object.keys(deps).forEach(function (name) {
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var branches = deps[name]
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var releases = Object.keys(branches)
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// duplicates detected
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if (check && releases.length > 1) duplicates[name] = branches;
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releases
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// non semver releases first
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.filter(function (release) {
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if (semver.valid(release)) return true
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dependencies.push(branches[release])
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return false
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})
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// ascending semver version
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.sort(semver.compare)
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.forEach(function (release) {
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dependencies.push(branches[release])
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})
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})
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// check for duplicate local names
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if (check) {
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var localnames = {};
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locals.forEach(function (local) {
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var name = local.name;
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(localnames[name] = localnames[name] || [])
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.push(local);
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});
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Object.keys(localnames).forEach(function (name) {
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if (localnames[name].length > 1) conflicts[name] = localnames[name];
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});
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}
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var out = dependencies.concat(locals);
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if (check) {
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out.duplicates = duplicates;
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out.conflicts = conflicts;
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}
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return out;
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function traverse(branch) {
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if (~resolved.indexOf(branch)) return
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resolved.push(branch)
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traverseDeps(branch)
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traverseLocals(branch)
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if (branch.type === 'local') return locals.push(branch)
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// group together a component and its duplicate releases
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var releases = deps[branch.name] = deps[branch.name] || {}
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releases[branch.ref] = branch
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}
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function traverseDeps(branch) {
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var deps = branch.dependencies
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if (!deps) return
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var names = Object.keys(deps)
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for (var i = 0; i < names.length; i++)
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traverse(deps[names[i]])
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}
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function traverseLocals(branch) {
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var locals = branch.locals
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if (!locals) return
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var names = Object.keys(locals)
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for (var i = 0; i < names.length; i++)
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traverse(locals[names[i]])
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}
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}

‎package.json

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{
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"name": "component-flatten",
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"description": "flatten a resolved component tree",
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"version": "0.0.0",
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"author": {
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"name": "Jonathan Ong",
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"email": "me@jongleberry.com",
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"url": "http://jongleberry.com",
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"twitter": "https://twitter.com/jongleberry"
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},
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"license": "MIT",
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"repository": {
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"type": "git",
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"url": "https://github.com/component/flatten.js.git"
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},
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"bugs": {
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"mail": "me@jongleberry.com",
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"url": "https://github.com/component/flatten.js/issues"
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},
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"dependencies": {
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"semver": "^2.2.1"
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},
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"peerDependencies": {
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"component-resolver": "*"
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}
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}

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