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95 lines (85 loc) · 2.82 KB
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var path = require('path'),
moment = require('moment'),
hfm = require('hexo-front-matter'),
fs = require('hexo-fs'),
extend = require('extend');
// yfm = util.yfm,
// escape = util.escape;
/**
* Updates a post.
*
* @method update
* @param {str} model the type of model being updated
* @param {Object} post a post model
* @param {Object} update attributes to update
* @param {Function} callback
*/
module.exports = function (model, id, update, callback, hexo) {
function removeExtname(str) {
return str.substring(0, str.length - path.extname(str).length);
}
var post = hexo.model(model).get(id)
if (!post) {
return callback('Post not found');
}
var config = hexo.config,
slug = post.slug = hfm.escape(post.slug || post.title, config.filename_case),
layout = post.layout = (post.layout || config.default_layout).toLowerCase(),
date = post.date = post.date ? moment(post.date) : moment();
var split = hfm.split(post.raw),
frontMatter = split.data
compiled = hfm.parse([frontMatter, '---', split.content].join('\n'));
var preservedKeys = ['title', 'date', 'tags', 'categories', '_content', 'author'];
Object.keys(hexo.config.metadata || {}).forEach(function (key) {
preservedKeys.push(key);
});
var prev_full = post.full_source,
full_source = prev_full;
if (update.source && update.source !== post.source) {
// post.full_source only readable ~ see: /hexo/lib/models/post.js
full_source = hexo.source_dir + update.source
}
preservedKeys.forEach(function (attr) {
if (attr in update) {
compiled[attr] = update[attr]
}
});
compiled.date = moment(compiled.date).toDate()
delete update._content
var raw = hfm.stringify(compiled);
update.raw = raw
update.updated = moment()
// tags and cats are only getters now. ~ see: /hexo/lib/models/post.js
if ( typeof update.tags !== 'undefined' ) {
post.setTags(update.tags)
delete update.tags
}
if ( typeof update.categories !== 'undefined' ) {
post.setCategories(update.categories)
delete update.categories
}
extend(post, update)
post.save(function () {
// console.log(post.full_source, post.source)
fs.writeFile(full_source, raw, function(err){
if (err) return callback(err);
if (full_source !== prev_full) {
fs.unlinkSync(prev_full)
// move asset dir
var assetPrev = removeExtname(prev_full);
var assetDest = removeExtname(full_source);
fs.exists(assetPrev).then(function(exist) {
if (exist) {
fs.copyDir(assetPrev, assetDest).then(function() {
fs.rmdir(assetPrev);
});
}
});
}
hexo.source.process([post.source]).then(function () {
// console.log(post.full_source, post.source)
callback(null, hexo.model(model).get(id));
});
});
});
}