mirror of
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66 lines
2.3 KiB
CoffeeScript
66 lines
2.3 KiB
CoffeeScript
_ = require("underscore")
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metrics = require("./metrics")
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logger = require("logger-sharelatex")
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exec = require('child_process').exec
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approvedFormats = ["png"]
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twentySeconds = 20 * 1000
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module.exports =
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convert: (sourcePath, requestedFormat, callback)->
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logger.log sourcePath:sourcePath, requestedFormat:requestedFormat, "converting file format"
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timer = new metrics.Timer("imageConvert")
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destPath = "#{sourcePath}.#{requestedFormat}"
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sourcePath = "#{sourcePath}[0]"
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if !_.include approvedFormats, requestedFormat
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err = new Error("invalid format requested")
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return callback err
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args = "nice convert -flatten -density 300 #{sourcePath} #{destPath}"
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opts =
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timeout: twentySeconds
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exec args, opts, (err, stdout, stderr)->
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timer.done()
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if err?
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logger.err err:err, stderr:stderr, sourcePath:sourcePath, requestedFormat:requestedFormat, "something went wrong converting file"
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else
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logger.log sourcePath:sourcePath, requestedFormat:requestedFormat, "finished converting file"
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callback(err, destPath)
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thumbnail: (sourcePath, callback)->
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logger.log sourcePath:sourcePath, "thumbnail convert file"
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destPath = "#{sourcePath}.png"
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sourcePath = "#{sourcePath}[0]"
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args =
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src: sourcePath
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dst: destPath
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width: 424
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height: 300
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args = "nice convert -flatten -background white -resize 260x -density 300 #{sourcePath} #{destPath}"
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opts =
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timeout: twentySeconds
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exec args, opts,(err, stdout, stderr)->
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if err?
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logger.err err:err, stderr:stderr, sourcePath:sourcePath, "something went wrong converting file to preview"
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else
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logger.log sourcePath:sourcePath, "finished thumbnailing file"
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callback(err, destPath)
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preview: (sourcePath, callback)->
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logger.log sourcePath:sourcePath, "preview convert file"
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destPath = "#{sourcePath}.png"
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sourcePath = "#{sourcePath}[0]"
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args =
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src: sourcePath
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dst: destPath
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width: 600
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height: 849
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args = "nice convert -flatten -background white -resize 548x -density 300 #{sourcePath} #{destPath}"
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opts =
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timeout: twentySeconds
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exec args, opts,(err, stdout, stderr)->
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if err?
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logger.err err:err, stderr:stderr, sourcePath:sourcePath, "something went wrong converting file to preview"
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else
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logger.log sourcePath:sourcePath, "finished converting file to preview"
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callback(err, destPath)
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