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var extend = require('extend');
var Promise = require('../../utils/promise');
var getPDFTemplate = require('./getPDFTemplate');
var getCoverPath = require('./getCoverPath');
/**
Generate options for ebook-convert
@param {Output}
@return {Promise<Object>}
*/
function getConvertOptions(output) {
var options = output.getOptions();
var format = options.get('format');
var book = output.getBook();
var config = book.getConfig();
return Promise()
.then(function() {
var coverPath = getCoverPath(output);
var options = {
'--cover': coverPath,
'--title': config.getValue('title'),
'--comments': config.getValue('description'),
'--isbn': config.getValue('isbn'),
'--authors': config.getValue('author'),
'--language': book.getLanguage() || config.getValue('language'),
'--book-producer': 'GitBook',
'--publisher': 'GitBook',
'--chapter': 'descendant-or-self::*[contains(concat(\' \', normalize-space(@class), \' \'), \' book-chapter \')]',
'--level1-toc': 'descendant-or-self::*[contains(concat(\' \', normalize-space(@class), \' \'), \' book-chapter-1 \')]',
'--level2-toc': 'descendant-or-self::*[contains(concat(\' \', normalize-space(@class), \' \'), \' book-chapter-2 \')]',
'--level3-toc': 'descendant-or-self::*[contains(concat(\' \', normalize-space(@class), \' \'), \' book-chapter-3 \')]',
'--max-levels': '1',
'--no-chapters-in-toc': true,
'--breadth-first': true,
'--dont-split-on-page-breaks': format === 'epub'? true : undefined
};
if (format !== 'pdf') {
return options;
}
return Promise.all([
getPDFTemplate(output, 'header'),
getPDFTemplate(output, 'footer')
])
.spread(function(headerTpl, footerTpl) {
var pdfOptions = config.getValue('pdf').toJS();
return options = extend(options, {
'--chapter-mark': String(pdfOptions.chapterMark),
'--page-breaks-before': String(pdfOptions.pageBreaksBefore),
'--margin-left': String(pdfOptions.margin.left),
'--margin-right': String(pdfOptions.margin.right),
'--margin-top': String(pdfOptions.margin.top),
'--margin-bottom': String(pdfOptions.margin.bottom),
'--pdf-default-font-size': String(pdfOptions.fontSize),
'--pdf-mono-font-size': String(pdfOptions.fontSize),
'--paper-size': String(pdfOptions.paperSize),
'--pdf-page-numbers': Boolean(pdfOptions.pageNumbers),
'--pdf-sans-family': String(pdfOptions.fontFamily),
'--pdf-header-template': headerTpl,
'--pdf-footer-template': footerTpl
});
});
});
}
module.exports = getConvertOptions;
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