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Callback upon error and exception handling #7

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Callback upon error and exception handling #7

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13 changes: 9 additions & 4 deletions src/colour-extractor.coffee
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Original file line number Diff line number Diff line change
Expand Up @@ -10,8 +10,8 @@ exports.topColours = (sourceFilename, sorted, cb) ->
img = gm(sourceFilename)
tmpFilename = temp.path({suffix: '.miff'})
img.size((err, wh) ->
console.log err if err
return cb(null) if err

ratio = wh.width/MAX_W
w2 = wh.width/2
h2 = wh.height/2
Expand All @@ -20,7 +20,7 @@ exports.topColours = (sourceFilename, sorted, cb) ->
.crop(w2, h2, w2/2, w2/2) # Center should be the most interesting
.scale(Math.ceil(wh.height/ratio), MAX_W) # Scales the image, histogram generation can take some time
.write('histogram:' + tmpFilename, (err) ->
console.log err if err
return cb(null) if err

histogram = ''
miffRS = fs.createReadStream(tmpFilename, {encoding: 'utf8'})
Expand Down Expand Up @@ -100,7 +100,12 @@ Example line:
parseHistogramLine = (xs) ->
xs = xs.trim().split(':')
return null if xs.length != 2
[+xs[0], xs[1].split('(')[1].split(')')[0].split(',').map((x) -> +x.trim())]
parsedHistogramLine = null
try
parsedHistogramLine = [+xs[0], xs[1].split('(')[1].split(')')[0].split(',').map((x) -> +x.trim())]
catch e
console.error(e, xs);
return parsedHistogramLine

# Magic
reduceSimilar = (xs, r) ->
Expand Down