db.json gets wiped when a new post is created, is this normal?

[MegaJ]

Should hexo new cool-blog-post wipe db.json? I had this happen to me. The reason seems to be that the db object exists, but the data is never loaded. The data gets deleted by lib/plugins/filter/before_exit/save_database.js which calls the database's .save()...but the db is empty so db.json gets written with empty fields.

I tested this on a fresh blog by running hexo init a-blog.

hexo server preserves the db.json (and updates it, I haven't checked), I think because the Hexo.prototype.watch gets called.

Environment Info

Node version(node -v): v8.4.0

Hexo and Plugin version(npm ls --depth 0):
├── hexo@3.4.3
├── hexo-generator-archive@0.1.5
├── hexo-generator-category@0.1.3
├── hexo-generator-index@0.2.1
├── hexo-generator-tag@0.2.0
├── hexo-renderer-ejs@0.3.1
├── hexo-renderer-marked@0.3.0
├── hexo-renderer-stylus@0.3.3
└── hexo-server@0.2.2

For question

So...is this supposed to happen...? If so, why wipe the db?

[NoahDragon]

I never check the db file while generating posts, will try to reproduce it.

Confirmed, it is a bug.

[SukkaW]

Should be fixed by #3793. The fixes will be deliver with Hexo 4.1.0.