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Current File : /www/specpages-backup/node_modules/hexo/lib/plugins/processor/post.js

'use strict';

const { toDate, timezone, isExcludedFile, isTmpFile, isHiddenFile, isMatch } = require('./common');
const Promise = require('bluebird');
const { parse: yfm } = require('hexo-front-matter');
const { extname, join } = require('path');
const { stat, listDir } = require('hexo-fs');
const { slugize, Pattern, Permalink } = require('hexo-util');
const { magenta } = require('picocolors');

const postDir = '_posts/';
const draftDir = '_drafts/';
let permalink;

const preservedKeys = {
  title: true,
  year: true,
  month: true,
  day: true,
  i_month: true,
  i_day: true,
  hash: true
};

module.exports = ctx => {
  return {
    pattern: new Pattern(path => {
      if (isTmpFile(path)) return;

      let result;

      if (path.startsWith(postDir)) {
        result = {
          published: true,
          path: path.substring(postDir.length)
        };
      } else if (path.startsWith(draftDir)) {
        result = {
          published: false,
          path: path.substring(draftDir.length)
        };
      }

      if (!result || isHiddenFile(result.path)) return;

      // checks only if there is a renderer for the file type or if is included in skip_render
      result.renderable = ctx.render.isRenderable(path) && !isMatch(path, ctx.config.skip_render);

      // if post_asset_folder is set, restrict renderable files to default file extension
      if (result.renderable && ctx.config.post_asset_folder) {
        result.renderable = (extname(ctx.config.new_post_name) === extname(path));
      }

      return result;
    }),

    process: function postProcessor(file) {
      if (file.params.renderable) {
        return processPost(ctx, file);
      } else if (ctx.config.post_asset_folder) {
        return processAsset(ctx, file);
      }
    }
  };
};

function processPost(ctx, file) {
  const Post = ctx.model('Post');
  const { path } = file.params;
  const doc = Post.findOne({source: file.path});
  const { config } = ctx;
  const { timezone: timezoneCfg } = config;
  // Deprecated: use_date_for_updated will be removed in future
  const updated_option = config.use_date_for_updated === true ? 'date' : config.updated_option;
  let categories, tags;

  if (file.type === 'skip' && doc) {
    return;
  }

  if (file.type === 'delete') {
    if (doc) {
      return doc.remove();
    }

    return;
  }

  return Promise.all([
    file.stat(),
    file.read()
  ]).spread((stats, content) => {
    const data = yfm(content);
    const info = parseFilename(config.new_post_name, path);
    const keys = Object.keys(info);

    data.source = file.path;
    data.raw = content;
    data.slug = info.title;

    if (file.params.published) {
      if (!Object.prototype.hasOwnProperty.call(data, 'published')) data.published = true;
    } else {
      data.published = false;
    }

    for (let i = 0, len = keys.length; i < len; i++) {
      const key = keys[i];
      if (!preservedKeys[key]) data[key] = info[key];
    }

    if (data.date) {
      data.date = toDate(data.date);
    } else if (info && info.year && (info.month || info.i_month) && (info.day || info.i_day)) {
      data.date = new Date(
        info.year,
        parseInt(info.month || info.i_month, 10) - 1,
        parseInt(info.day || info.i_day, 10)
      );
    }

    if (data.date) {
      if (timezoneCfg) data.date = timezone(data.date, timezoneCfg);
    } else {
      data.date = stats.birthtime;
    }

    data.updated = toDate(data.updated);

    if (data.updated) {
      if (timezoneCfg) data.updated = timezone(data.updated, timezoneCfg);
    } else if (updated_option === 'date') {
      data.updated = data.date;
    } else if (updated_option === 'empty') {
      data.updated = undefined;
    } else {
      data.updated = stats.mtime;
    }

    if (data.category && !data.categories) {
      data.categories = data.category;
      data.category = undefined;
    }

    if (data.tag && !data.tags) {
      data.tags = data.tag;
      data.tag = undefined;
    }

    categories = data.categories || [];
    tags = data.tags || [];

    if (!Array.isArray(categories)) categories = [categories];
    if (!Array.isArray(tags)) tags = [tags];

    if (data.photo && !data.photos) {
      data.photos = data.photo;
      data.photo = undefined;
    }

    if (data.photos && !Array.isArray(data.photos)) {
      data.photos = [data.photos];
    }

    if (data.link && !data.title) {
      data.title = data.link.replace(/^https?:\/\/|\/$/g, '');
    }

    if (data.permalink) {
      data.__permalink = data.permalink;
      data.permalink = undefined;
    }

    if (doc) {
      if (file.type !== 'update') {
        ctx.log.warn(`Trying to "create" ${magenta(file.path)}, but the file already exists!`);
      }
      return doc.replace(data);
    }

    return Post.insert(data);
  }).then(doc => Promise.all([
    doc.setCategories(categories),
    doc.setTags(tags),
    scanAssetDir(ctx, doc)
  ]));
}

function parseFilename(config, path) {
  config = config.substring(0, config.length - extname(config).length);
  path = path.substring(0, path.length - extname(path).length);

  if (!permalink || permalink.rule !== config) {
    permalink = new Permalink(config, {
      segments: {
        year: /(\d{4})/,
        month: /(\d{2})/,
        day: /(\d{2})/,
        i_month: /(\d{1,2})/,
        i_day: /(\d{1,2})/,
        hash: /([0-9a-f]{12})/
      }
    });
  }

  const data = permalink.parse(path);

  if (data) {
    return data;
  }

  return {
    title: slugize(path)
  };
}

function scanAssetDir(ctx, post) {
  if (!ctx.config.post_asset_folder) return;

  const assetDir = post.asset_dir;
  const baseDir = ctx.base_dir;
  const baseDirLength = baseDir.length;
  const PostAsset = ctx.model('PostAsset');

  return stat(assetDir).then(stats => {
    if (!stats.isDirectory()) return [];

    return listDir(assetDir);
  }).catch(err => {
    if (err && err.code === 'ENOENT') return [];
    throw err;
  }).filter(item => !isExcludedFile(item, ctx.config)).map(item => {
    const id = join(assetDir, item).substring(baseDirLength).replace(/\\/g, '/');
    const asset = PostAsset.findById(id);

    if (shouldSkipAsset(ctx, post, asset)) return undefined;

    return PostAsset.save({
      _id: id,
      post: post._id,
      slug: item,
      modified: true
    });
  });
}

function shouldSkipAsset(ctx, post, asset) {
  if (!ctx._showDrafts()) {
    if (post.published === false && asset) {
      // delete existing draft assets if draft posts are hidden
      asset.remove();
    }
    if (post.published === false) {
      // skip draft assets if draft posts are hidden
      return true;
    }
  }

  return asset !== undefined; // skip already existing assets
}

function processAsset(ctx, file) {
  const PostAsset = ctx.model('PostAsset');
  const Post = ctx.model('Post');
  const id = file.source.substring(ctx.base_dir.length).replace(/\\/g, '/');
  const doc = PostAsset.findById(id);

  if (file.type === 'delete') {
    if (doc) {
      return doc.remove();
    }

    return;
  }

  // TODO: Better post searching
  const post = Post.toArray().find(post => file.source.startsWith(post.asset_dir));
  if (post != null && (post.published || ctx._showDrafts())) {
    return PostAsset.save({
      _id: id,
      slug: file.source.substring(post.asset_dir.length),
      post: post._id,
      modified: file.type !== 'skip',
      renderable: file.params.renderable
    });
  }

  if (doc) {
    return doc.remove();
  }
}

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