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‎.eslintrc

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env:
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node: true
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browser: false
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plugins:
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- nodeca
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rules:
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block-scoped-var: 2
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brace-style: [ 2, '1tbs', { "allowSingleLine": true } ]
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comma-dangle: 2
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comma-spacing: 2
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comma-style: 2
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consistent-return: 2
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consistent-this: [ 2, self ]
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curly: [ 2, all ]
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# default-case: 2
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# dot-notation: [ 2, { allowKeywords: true } ]
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eol-last: 2
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eqeqeq: 2
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func-style: [ 2, declaration ]
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handle-callback-err: 2
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# key-spacing: [ 2, { "align": "value" } ]
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max-depth: [ 1, 6 ]
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max-nested-callbacks: [ 1, 8 ]
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# string can exceed 80 chars, but should not overflow github website :)
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max-len: [ 2, 120, 1000 ]
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new-cap: 2
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new-parens: 2
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no-alert: 2
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no-array-constructor: 2
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no-bitwise: 2
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no-caller: 2
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no-catch-shadow: 2
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no-cond-assign: 2
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no-console: 1
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no-constant-condition: 2
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no-control-regex: 2
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no-div-regex: 2
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no-dupe-args: 2
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no-dupe-keys: 2
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no-duplicate-case: 2
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no-else-return: 2
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# no-empty: 1
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no-empty-class: 2
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no-empty-label: 2
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no-eq-null: 2
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no-eval: 2
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no-ex-assign: 2
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no-extend-native: 2
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no-extra-bind: 2
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no-extra-boolean-cast: 2
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no-extra-semi: 2
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no-fallthrough: 2
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no-floating-decimal: 2
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no-func-assign: 2
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no-implied-eval: 2
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no-inner-declarations: 2
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no-invalid-regexp: 2
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no-irregular-whitespace: 2
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no-iterator: 2
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no-label-var: 2
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no-lone-blocks: 1
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no-lonely-if: 2
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no-loop-func: 2
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no-mixed-spaces-and-tabs: 2
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no-native-reassign: 2
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no-negated-in-lhs: 2
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no-new: 2
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no-new-func: 2
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no-new-object: 2
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no-new-require: 2
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no-new-wrappers: 2
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no-obj-calls: 2
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no-octal: 2
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no-octal-escape: 2
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no-proto: 2
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no-redeclare: 2
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# no-regex-spaces: 2
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no-reserved-keys: 2
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no-return-assign: 2
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no-self-compare: 2
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no-sequences: 2
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# no-shadow: 2
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no-shadow-restricted-names: 2
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no-sparse-arrays: 2
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no-path-concat: 2
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no-throw-literal: 2
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no-trailing-spaces: 2
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no-undef: 2
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no-undef-init: 2
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no-undefined: 2
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no-unreachable: 2
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no-unused-expressions: 2
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no-use-before-define: 2
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operator-assignment: 1
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semi: 2
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semi-spacing: 2
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space-after-keywords: 2
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space-before-blocks: 2
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space-before-function-paren: [ 2, { "anonymous": "always", "named": "never" } ]
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space-in-brackets: [ 2, always, { propertyName: false } ]
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space-in-parens: [ 2, never ]
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space-infix-ops: 2
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space-return-throw-case: 2
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space-unary-ops: 2
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spaced-line-comment: [ 1, always, { exceptions: [ '/', '=' ] } ]
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strict: [ 2, global ]
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quotes: [ 2, single, avoid-escape ]
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quote-props: [ 1, 'as-needed' ]
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radix: 2
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use-isnan: 2
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valid-typeof: 2
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yoda: [ 2, never, { "exceptRange": true } ]
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#
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# Our custom rules from plugin
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#
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nodeca/no-lodash-aliases: 2
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nodeca/no-async-aliases: 2
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nodeca/indent: [2, spaces, 2]
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nodeca/no-wire-anonymous: 1

‎.gitignore

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node_modules
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doc
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*.log
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*.swp

‎.travis.yml

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language: node_js
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node_js:
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- '0.10'
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- '0.12'
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- '4'
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sudo: false

‎LICENSE

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Copyright (c) 2015 Vitaly Puzrin.
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation
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files (the "Software"), to deal in the Software without
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restriction, including without limitation the rights to use,
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copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following
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conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.

‎Makefile

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PATH := ./node_modules/.bin:${PATH}
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NPM_PACKAGE := $(shell node -e 'console.log(require("./package.json").name)')
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NPM_VERSION := $(shell node -e 'console.log(require("./package.json").version)')
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TMP_PATH := /tmp/${NPM_PACKAGE}-$(shell date +%s)
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REMOTE_NAME ?= origin
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REMOTE_REPO ?= $(shell git config --get remote.${REMOTE_NAME}.url)
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CURR_HEAD := $(firstword $(shell git show-ref --hash HEAD | cut -b -6) master)
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GITHUB_PROJ := nodeca/${NPM_PACKAGE}
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help:
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echo "make help - Print this help"
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echo "make lint - Lint sources with JSHint"
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echo "make test - Lint sources and run all tests"
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echo "make publish - Set new version tag and publish npm package"
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lint:
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eslint --reset .
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test: lint
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mocha
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test-all: lint
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LINKS_CHECK=all mocha
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publish:
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@if test 0 -ne `git status --porcelain | wc -l` ; then \
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echo "Unclean working tree. Commit or stash changes first." >&2 ; \
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exit 128 ; \
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fi
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@if test 0 -ne `git fetch ; git status | grep '^# Your branch' | wc -l` ; then \
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echo "Local/Remote history differs. Please push/pull changes." >&2 ; \
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exit 128 ; \
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fi
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@if test 0 -ne `git tag -l ${NPM_VERSION} | wc -l` ; then \
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echo "Tag ${NPM_VERSION} exists. Update package.json" >&2 ; \
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exit 128 ; \
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fi
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git tag ${NPM_VERSION} && git push origin ${NPM_VERSION}
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npm publish https://github.com/${GITHUB_PROJ}/tarball/${NPM_VERSION}
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.PHONY: publish lint test
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.SILENT: help lint test

‎README.md

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probe-image-size
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================
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[![Build Status](https://img.shields.io/travis/nodeca/probe-image-size/master.svg?style=flat)](https://travis-ci.org/nodeca/probe-image-size)
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[![NPM version](https://img.shields.io/npm/v/probe-image-size.svg?style=flat)](https://www.npmjs.org/package/probe-image-size)
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> Get image size without full download
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Supported image types: JPG, GIF, PNG, BMP.
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Install
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-------
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```bash
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npm install probe-image-size --save
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```
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Example
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-------
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```js
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var probe = require('probe-image-size');
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// Get by URL
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//
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probe('http://example.com/image.jpg', function (err, result) {
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console.log(result); // => { width: xx, height: yy, type: 'jpg', mime: 'image/jpg' }
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});
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// By URL with options
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//
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probe({ url: 'http://example.com/image.jpg', timeout: 5000 }, function (err, result) {
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console.log(result); // => { width: xx, height: yy, type: 'jpg', mime: 'image/jpg' }
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});
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// From stream
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//
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var input = require('fs').createReadStream('image.jpg');
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probe(input, function (err, result) {
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console.log(result); // => { width: xx, height: yy, type: 'jpg', mime: 'image/jpg' }
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// terminate input, depends on stream type,
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// this example is for fs streams only.
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input.destroy();
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});
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```
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API
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---
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### probe(src, callback(err, result))
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`src` can be of this types:
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- __String__ - URL to fetch
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- __Object__ - options for [request](https://github.com/request/request)
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- __Stream__ - readable stream
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`result` contains:
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```js
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{
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width: XX,
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height: YY,
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type: ..., // image type
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mime: ... // mime type
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}
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```
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`err` is extended with `status` field on bad server response.
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__Note.__ If you use stream as source, it's your responsibility to terminate
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reading in callback. That will release resources as soon as possible. On
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http requests that's done automatically.
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Similar projects
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----------------
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- [image-size](https://github.com/netroy/image-size)
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- [imagesize](https://github.com/arnaud-lb/imagesize.js)
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License
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-------
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[MIT](https://raw.github.com/nodeca/probe-image-size/master/LICENSE)

‎index.js

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'use strict';
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module.exports = require('./lib');

‎lib/common.js

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'use strict';
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var Transform = require('stream').Transform;
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var streamParser = require('stream-parser');
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var inherits = require('util').inherits;
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function ParserStream() {
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Transform.call(this);
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}
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inherits(ParserStream, Transform);
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streamParser(ParserStream.prototype);
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exports.ParserStream = ParserStream;
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exports.once = function (fn) {
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var called = false;
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return function () {
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if (!called) {
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called = true;
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fn.apply(this, arguments);
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}
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};
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};

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