mirror of
https://github.com/JuanCanham/HackMyResume.git
synced 2025-04-19 14:20:25 +01:00
419c935d82
Note: This is based off <https://github.com/hacksalot/HackMyResume/pull/185> because I changed the generator expected arguments in that branch.
116 lines
3.8 KiB
CoffeeScript
116 lines
3.8 KiB
CoffeeScript
###*
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Definition of the HtmlPdfCLIGenerator class.
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@module generators/html-pdf-generator.js
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@license MIT. See LICENSE.md for details.
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###
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TemplateGenerator = require './template-generator'
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FS = require 'fs-extra'
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PATH = require 'path'
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SLASH = require 'slash'
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_ = require 'underscore'
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HMSTATUS = require '../core/status-codes'
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SPAWN = require '../utils/safe-spawn'
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###*
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An HTML-driven PDF resume generator for HackMyResume. Talks to Phantom,
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wkhtmltopdf, and other PDF engines over a CLI (command-line interface).
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If an engine isn't installed for a particular platform, error out gracefully.
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###
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module.exports = class HtmlPdfCLIGenerator extends TemplateGenerator
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constructor: () -> super 'pdf', 'html'
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###* Generate the binary PDF. ###
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onBeforeSave: ( info ) ->
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#console.dir _.omit( info, 'mk' ), depth: null, colors: true
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return info.mk if info.ext != 'html' and info.ext != 'pdf'
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safe_eng = info.opts.pdf || 'wkhtmltopdf'
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safe_eng = 'phantomjs' if safe_eng == 'phantom'
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if _.has engines, safe_eng
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@errHandler = info.opts.errHandler
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engines[ safe_eng ].call @, info.mk, info.outputFile, info.opts, @onError
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return null # halt further processing
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### Low-level error callback for spawn(). May be called after HMR process
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termination, so object references may not be valid here. That's okay; if
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the references are invalid, the error was already logged. We could use
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spawn-watch here but that causes issues on legacy Node.js. ###
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onError: (ex, param) ->
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param.errHandler?.err? HMSTATUS.pdfGeneration, ex
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return
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# TODO: Move each engine to a separate module
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engines =
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###*
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Generate a PDF from HTML using wkhtmltopdf's CLI interface.
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Spawns a child process with `wkhtmltopdf <source> <target>`. wkhtmltopdf
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must be installed and path-accessible.
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TODO: If HTML generation has run, reuse that output
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TODO: Local web server to ease wkhtmltopdf rendering
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###
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wkhtmltopdf: (markup, fOut, opts, on_error) ->
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# Save the markup to a temporary file
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tempFile = fOut.replace /\.pdf$/i, '.pdf.html'
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FS.writeFileSync tempFile, markup, 'utf8'
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# Prepare wkhtmltopdf arguments.
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wkhtmltopdf_options = _.extend(
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{'margin-bottom': '10mm', 'margin-top': '10mm'}, opts.wkhtmltopdf)
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wkhtmltopdf_options = _.flatten(_.map(wkhtmltopdf_options, (v, k)->
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return ['--' + k, v]
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))
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wkhtmltopdf_args = wkhtmltopdf_options.concat [ tempFile, fOut ]
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SPAWN 'wkhtmltopdf', wkhtmltopdf_args , false, on_error, @
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return
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###*
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Generate a PDF from HTML using Phantom's CLI interface.
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Spawns a child process with `phantomjs <script> <source> <target>`. Phantom
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must be installed and path-accessible.
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TODO: If HTML generation has run, reuse that output
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TODO: Local web server to ease Phantom rendering
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###
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phantomjs: ( markup, fOut, opts, on_error ) ->
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# Save the markup to a temporary file
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tempFile = fOut.replace /\.pdf$/i, '.pdf.html'
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FS.writeFileSync tempFile, markup, 'utf8'
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scriptPath = PATH.relative process.cwd(), PATH.resolve( __dirname, '../utils/rasterize.js' )
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scriptPath = SLASH scriptPath
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sourcePath = SLASH PATH.relative( process.cwd(), tempFile)
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destPath = SLASH PATH.relative( process.cwd(), fOut)
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SPAWN 'phantomjs', [ scriptPath, sourcePath, destPath ], false, on_error, @
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return
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###*
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Generate a PDF from HTML using WeasyPrint's CLI interface.
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Spawns a child process with `weasyprint <source> <target>`. Weasy Print
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must be installed and path-accessible.
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TODO: If HTML generation has run, reuse that output
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###
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weasyprint: ( markup, fOut, opts, on_error ) ->
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# Save the markup to a temporary file
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tempFile = fOut.replace /\.pdf$/i, '.pdf.html'
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FS.writeFileSync tempFile, markup, 'utf8'
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SPAWN 'weasyprint', [tempFile, fOut], false, on_error, @
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return
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