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var Q = require("q");
var _ = require("lodash");
var path = require("path");
var swig = require('swig');
var fs = require("./fs");
var parse = require("../parse");
var generators = {
"site": require("./site"),
"page": require("./page"),
"pdf": require("./pdf"),
"json": require("./json")
};
var generate = function(options) {
var generator = null;
var files;
options = _.defaults(options || {}, {
// Folders to use
input: null,
output: null,
// Output generator
generator: "site",
// Book title, keyword, description
title: null,
description: "Book generated using GitBook",
// Origin github repository id
github: null,
githubHost: 'https://github.com/',
// Theming
theme: path.resolve(__dirname, '../../theme')
});
if (!options.github || !options.title || !options.input || !options.output) {
return Q.reject(new Error("Need options: github, title, input, output"));
}
if (!generators[options.generator]) {
return Q.reject(new Error("Invalid generator (availables are: "+_.keys(generators).join(", ")));
}
// Clean output folder
return fs.remove(options.output)
.then(function() {
return fs.mkdirp(options.output);
})
// List all files in the repository
.then(function() {
return fs.list(options.input)
.then(function(_files) {
files = _files;
})
})
// Create the generator
.then(function() {
generator = new generators[options.generator](options);
})
// Detect multi-languages book
.then(function() {
if (_.contains(files, "README.md") && _.contains(files, "LANGS.md")) {
// Multi-languages book
return fs.readFile(path.join(options.input, "LANGS.md"), "utf-8")
// Generate sub-books
.then(function(_langsSummary) {
options.langsSummary = parse.langs(_langsSummary);
// Generated a book for each valid entry
return Q.all(
_.map(options.langsSummary.list, function(entry) {
return generate(_.extend({}, options, {
input: path.join(options.input, entry.path),
output: path.join(options.output, entry.path)
}));
})
);
})
// Generate languages index
.then(function() {
return generator.langsIndex(options.langsSummary);
});
} else if (!_.contains(files, "SUMMARY.md") || !_.contains(files, "README.md")) {
// Invalid book
return Q.reject(new Error("Invalid gitbook repository, need SUMMARY.md and README.md"));
} else {
// Generate the book
return fs.readFile(path.join(options.input, "SUMMARY.md"), "utf-8")
// Get summary
.then(function(_summary) {
options.summary = parse.summary(_summary);
// Parse navigation
options.navigation = parse.navigation(options.summary);
})
// Copy file and replace markdown file
.then(function() {
return Q.all(
_.chain(files)
.map(function(file) {
if (!file) return;
if (file[file.length -1] == "/") {
return Q(generator.transferFolder(file));
} else if (path.extname(file) == ".md" && options.navigation[file] != null) {
return fs.readFile(path.join(options.input, file), "utf-8")
.then(function(content) {
return Q(generator.convertFile(content, file));
});
} else {
return Q(generator.transferFile(file));
}
})
.value()
);
})
}
})
// Finish gneration
.then(function() {
return generator.finish();
});
};
module.exports = {
generators: generators,
folder: generate
};
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