mirror of
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use pdfinfo on output to ensure pdfs are optimised
needed to check that qpdf runs correctly inside the docker container
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parent
f84d4f5e5f
commit
f7c3565281
1 changed files with 31 additions and 13 deletions
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@ -28,6 +28,18 @@ compare = (originalPath, generatedPath, callback = (error, same) ->) ->
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console.log "compare result", stderr
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callback null, false
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checkPdfInfo = (pdfPath, callback = (error, output) ->) ->
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proc = ChildProcess.exec "pdfinfo #{fixturePath(pdfPath)}"
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stdout = ""
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proc.stdout.on "data", (chunk) -> stdout += chunk
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proc.stderr.on "data", (chunk) -> console.log "STDERR", chunk.toString()
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proc.on "exit", () ->
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if stdout.match(/Optimized:\s+yes/)
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callback null, true
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else
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console.log "pdfinfo result", stdout
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callback null, false
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compareMultiplePages = (project_id, callback = (error) ->) ->
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compareNext = (page_no, callback) ->
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path = "tmp/#{project_id}-source-#{page_no}.png"
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@ -41,24 +53,30 @@ compareMultiplePages = (project_id, callback = (error) ->) ->
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compareNext page_no + 1, callback
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compareNext 0, callback
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comparePdf = (project_id, example_dir, callback = (error) ->) ->
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convertToPng "tmp/#{project_id}.pdf", "tmp/#{project_id}-generated.png", (error) =>
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throw error if error?
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convertToPng "examples/#{example_dir}/output.pdf", "tmp/#{project_id}-source.png", (error) =>
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throw error if error?
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fs.stat fixturePath("tmp/#{project_id}-source-0.png"), (error, stat) =>
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if error?
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compare "tmp/#{project_id}-source.png", "tmp/#{project_id}-generated.png", (error, same) =>
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throw error if error?
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same.should.equal true
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callback()
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else
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compareMultiplePages project_id, (error) ->
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throw error if error?
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callback()
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downloadAndComparePdf = (project_id, example_dir, url, callback = (error) ->) ->
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writeStream = fs.createWriteStream(fixturePath("tmp/#{project_id}.pdf"))
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request.get(url).pipe(writeStream)
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writeStream.on "close", () =>
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convertToPng "tmp/#{project_id}.pdf", "tmp/#{project_id}-generated.png", (error) =>
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checkPdfInfo "tmp/#{project_id}.pdf", (error, optimised) =>
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throw error if error?
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convertToPng "examples/#{example_dir}/output.pdf", "tmp/#{project_id}-source.png", (error) =>
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throw error if error?
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fs.stat fixturePath("tmp/#{project_id}-source-0.png"), (error, stat) =>
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if error?
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compare "tmp/#{project_id}-source.png", "tmp/#{project_id}-generated.png", (error, same) =>
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throw error if error?
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same.should.equal true
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callback()
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else
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compareMultiplePages project_id, (error) ->
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throw error if error?
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callback()
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optimised.should.equal true
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comparePdf project_id, example_dir, callback
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Client.runServer(4242, fixturePath("examples"))
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