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balloon.js
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balloon.js
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var fs = require('fs');
var path = require('path');
var extend = require('extend');
var program = require('commander');
var rimraf = require('rimraf');
var slug = require('slug');
var sortBy = require('sort-by');
var pkg = require('./package.json');
var watch = require('./lib/watch.js');
var render = require('./lib/render.js');
var serve = require('./lib/serve.js');
var static = require('./lib/static.js');
var deploy = require('./lib/deploy.js');
var ARCHIVE_PAGES_REGEX = /(index.html|rss.xml)$/;
var BALLOON_CONFIG_PATH = 'balloon.json';
/** MAIN ENTRYPOINT **/
module.exports.run = function () {
program
.version(pkg.version)
.usage('[options]')
.option('-s, --serve [port]', 'watch and serve files')
.option('-b, --build <path>', 'override build path')
.option('-d, --deploy [domain]', 'deploy to S3')
.parse(process.argv);
var BALLOON_CONFIG = getConfig(BALLOON_CONFIG_PATH);
var SOURCE_PATH = program.source || BALLOON_CONFIG.source;
var BUILD_PATH = program.output || BALLOON_CONFIG.build;
var CONTENT_PATH = path.join(SOURCE_PATH, 'content');
if (program.deploy) {
var domain = typeof(program.deploy) === 'string' ? program.deploy : BALLOON_CONFIG.domain;
deploy(BUILD_PATH, domain);
} else if (program.serve && BUILD_PATH) {
rimraf(BUILD_PATH, function (err) {
if (err) { return console.log('Failed wipe build directory:', err); }
watch(SOURCE_PATH, BUILD_PATH, function (err, changedPath) {
if (err) { return console.log('Failed to watch files:', err); }
// Reload the things
// TODO: Move this somewhere else
BALLOON_CONFIG = getConfig(BALLOON_CONFIG_PATH);
SOURCE_PATH = program.source || BALLOON_CONFIG.source;
BUILD_PATH = program.output || BALLOON_CONFIG.build;
CONTENT_PATH = path.join(SOURCE_PATH, 'content');
var pagePaths;
// Only static was changed. Don't render again
if (changedPath && changedPath.match(/^static\/.*/)) {
pagePaths = null;
}
// Single content file was changed that isn't an archive file (ex: index.html)
else if (
changedPath &&
changedPath.match(CONTENT_PATH) &&
!changedPath.match(ARCHIVE_PAGES_REGEX)
) {
pagePaths = [ path.relative(CONTENT_PATH, changedPath) ];
}
// No specific file changed. Compile all again.
else {
pagePaths = getPagePaths(path.join(SOURCE_PATH, CONTENT_PATH), '.');
}
renderPages(BALLOON_CONFIG.defaults, CONTENT_PATH, BUILD_PATH, pagePaths, function (err) {
var port = parseInt(program.serve, 10);
serve(BUILD_PATH, port);
static(SOURCE_PATH, BUILD_PATH, function (err) {
if (err) { return console.log('Failed to copy static files:', err); }
// Done
});
});
});
});
}
else if (BUILD_PATH) {
var pagePaths = getPagePaths(path.join(SOURCE_PATH, CONTENT_PATH), '.');
var msg = SOURCE_PATH + ' --> ' + BUILD_PATH;
console.log('\x1b[45m * \x1b[0m\033[1m build:\033[0m ' + msg);
rimraf(BUILD_PATH, function (err) {
if (err) { return console.log('Failed wipe build directory:', err); }
renderPages(BALLOON_CONFIG.defaults, CONTENT_PATH, BUILD_PATH, pagePaths, function (err) {
static(SOURCE_PATH, BUILD_PATH, function (err) {
if (err) { return console.log('Failed to copy static files:', err); }
// Done
});
});
});
}
else {
program.help();
}
};
/**
* For each page, render
*/
function renderPages (defaults, sourcePath, buildPath, pagePaths, callback) {
var pageCount = 0;
var allPageConfigs = [ ];
var lastPages = [ ];
var extensionMap = { '.md': '.html' };
if (!pagePaths || pagePaths.length === 0) { return callback(null); }
for (var i = 0; i < pagePaths.length; i++) {
var pageFile = pagePaths[i];
var pageExt = path.extname(pageFile);
var pageTitle = path.basename(pageFile, pageExt);
var pageSlug = slug(pageTitle.replace('–', '-')).toLowerCase();
var pagePath = '/' + path.join(path.dirname(pageFile), pageSlug) + (extensionMap[pageExt] || pageExt);
var pageConfig = {
_path: pagePath,
_file: pageFile,
_ext: pageExt,
_slug: pageSlug,
_created: extractDateFromPath(pagePath)
};
if (pagePath.match(ARCHIVE_PAGES_REGEX)) {
lastPages.push(pageConfig);
continue;
} else {
// This is a content page
pageCount++;
pageConfig._title = pageTitle;
}
render(defaults, sourcePath, buildPath, pageConfig, null, function (err, localPageConfig) {
if (err) { return console.log('Failed to render', pageConfig._path, err.message); }
allPageConfigs.push(localPageConfig);
// TODO: Use better way of detecting done
// TODO: This is such a mess
if (--pageCount === 0) {
numFinished = 0;
allPageConfigs.sort(sortBy('_created.timestamp'));
for (var j = 0; j < lastPages.length; j++) {
render(defaults, sourcePath, buildPath, lastPages[j], allPageConfigs, function (err, pageConfig) {
if (err) { return console.log('Failed to render', pageConfig._path, err.message); }
if (++numFinished === lastPages.length) {
callback(null);
}
});
}
if (lastPages.length === 0) {
callback(null);
}
}
});
}
}
function extractDateFromPath (path) {
var match = path.match(/\/([0-9]{2,4})\/([0-9]{1,2})\/([0-9]{1,2})\/?/);
if (match) {
var year = parseInt(match[1], 10);
var month = parseInt(match[2], 10);
var day = parseInt(match[3], 10);
var d = new Date(year, month - 1, day);
var created = {
timestamp: d.getTime(),
year: year,
month: month,
day: day
};
return created;
}
return null;
}
/**
* Recursively find all page paths
*/
function getPagePaths (basePath, childPath) {
var filesInThisDir = [ ];
var joinedPath = path.join(basePath, childPath);
fs.readdirSync(joinedPath).forEach(function (filePath) {
var fullPath = path.join(basePath, childPath, filePath);
var relativePath = path.join(childPath, filePath);
var stats = fs.statSync(fullPath);
if (stats.isFile()) {
filesInThisDir.push(relativePath);
} else if (stats.isDirectory()) {
var morePaths = getPagePaths(basePath, relativePath);
filesInThisDir = filesInThisDir.concat(morePaths);
}
});
return filesInThisDir;
}
/**
* Get sanitized config with defaults
*/
function getConfig (configPath) {
var config = JSON.parse(fs.readFileSync(configPath));
return extend(true, {
build: './build',
source: './',
defaults: { },
pages: [ ]
}, config);
}