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var _ = require('lodash');
var path = require('path');
var Book = require('../book');
var NodeFS = require('../fs/node');
var Logger = require('../utils/logger');
var fs = require('../utils/fs');
var JSONOutput = require('../output/json');
var WebsiteOutput = require('../output/website');
var EBookOutput = require('../output/ebook');
var LOG_OPTION = {
name: 'log',
description: 'Minimum log level to display',
values: _.chain(Logger.LEVELS)
.keys()
.map(function(s) {
return s.toLowerCase();
})
.value(),
defaults: 'info'
};
var FORMAT_OPTION = {
name: 'format',
description: 'Format to build to',
values: ['website', 'json', 'ebook'],
defaults: 'website'
};
var FORMATS = {
json: JSONOutput,
website: WebsiteOutput,
ebook: EBookOutput
};
// Commands which is processing a book
// the root of the book is the first argument (or current directory)
function bookCmd(fn) {
return function(args, kwargs) {
var input = path.resolve(args[0] || process.cwd());
var book = new Book({
fs: new NodeFS(),
root: input,
logLevel: kwargs.log
});
return fn(book, args.slice(1), kwargs);
};
}
// Commands which is working on a Output instance
function outputCmd(fn) {
return bookCmd(function(book, args, kwargs) {
var Out = FORMATS[kwargs.format];
return fn(new Out(book), args);
});
}
// Command to generate an ebook
function ebookCmd(format) {
return {
name: format + ' [book] [output] [file]',
description: 'generates ebook '+format,
options: [
LOG_OPTION
],
exec: bookCmd(function(book, args, kwargs) {
return fs.tmpDir()
.then(function(dir) {
var outputFile = path.resolve(process.cwd(), args[1] || 'book.' + format);
var output = new EBookOutput(book, {
format: format
});
return output.book.parse()
.then(function() {
// Set output folder
output.book.config.set('output', dir);
return output.generate();
})
// Copy the ebook file
.then(function() {
return fs.copy(
path.resolve(dir, 'index.' + format),
outputFile
);
});
});
})
};
}
module.exports = {
bookCmd: bookCmd,
outputCmd: outputCmd,
ebookCmd: ebookCmd,
options: {
log: LOG_OPTION,
format: FORMAT_OPTION
},
FORMATS: FORMATS
};
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