Ghost/core/server/require-tree.js
2014-08-23 17:15:40 +00:00

122 lines
4.2 KiB
JavaScript

var _ = require('lodash'),
fs = require('fs'),
path = require('path'),
Promise = require('bluebird'),
readdirAsync = Promise.promisify(fs.readdir),
lstatAsync = Promise.promisify(fs.lstat),
parsePackageJson = function (path, messages) {
// Default the messages if non were passed
messages = messages || {
errors: [],
warns: []
};
var jsonContainer;
return new Promise(function (resolve) {
fs.readFile(path, function (error, data) {
if (error) {
messages.errors.push({
message: 'Could not read package.json file',
context: path
});
resolve(false);
return;
}
try {
jsonContainer = JSON.parse(data);
if (jsonContainer.hasOwnProperty('name') && jsonContainer.hasOwnProperty('version')) {
resolve(jsonContainer);
} else {
messages.errors.push({
message: '"name" or "version" is missing from theme package.json file.',
context: path,
help: 'This will be required in future. Please see http://docs.ghost.org/themes/'
});
resolve(false);
}
} catch (e) {
messages.errors.push({
message: 'Theme package.json file is malformed',
context: path,
help: 'This will be required in future. Please see http://docs.ghost.org/themes/'
});
resolve(false);
}
});
});
},
readDir = function (dir, options, depth, messages) {
depth = depth || 0;
messages = messages || {
errors: [],
warns: []
};
options = _.extend({
index: true
}, options);
if (depth > 1) {
return Promise.resolve(null);
}
return readdirAsync(dir).then(function (files) {
files = files || [];
return Promise.reduce(files, function (results, file) {
var fpath = path.join(dir, file);
return lstatAsync(fpath).then(function (result) {
if (result.isDirectory()) {
return readDir(fpath, options, depth + 1, messages);
} else if (depth === 1 && file === 'package.json') {
return parsePackageJson(fpath, messages);
} else {
return fpath;
}
}).then(function (result) {
results[file] = result;
return results;
});
}, {});
});
},
readAll = function (dir, options, depth) {
// Start with clean messages, pass down along traversal
var messages = {
errors: [],
warns: []
};
return readDir(dir, options, depth, messages).then(function (paths) {
// for all contents of the dir, I'm interested in the ones that are directories and within /theme/
if (typeof paths === 'object' && dir.indexOf('theme') !== -1) {
_.each(paths, function (path, index) {
if (typeof path === 'object' && !path.hasOwnProperty('package.json') && index.indexOf('.') !== 0) {
messages.warns.push({
message: 'Found a theme with no package.json file',
context: 'Theme name: ' + index,
help: 'This will be required in future. Please see http://docs.ghost.org/themes/'
});
}
});
}
paths._messages = messages;
return paths;
}).catch(function () {
return {'_messages': messages};
});
};
module.exports = {
readAll: readAll,
readDir: readDir,
parsePackageJson: parsePackageJson
};