Show deprecated/deleted packages

[Neui]

Discussion: Notify deprecated/deleted packages

Depercated or deleted packages aren't updated anymore and may cause issues in newer versions of Atom. ^{_{(See the discussion for the backstory)}}

These could be shown in the "Deprecated Packages"-Section of the package list. However, the problem is to identify such packages. In the discussion, there are some ideas:

• Drop an autogenerated file file into the package (eg. install-info) which contains simple info about the mechanism used for the installation (eg. apm). If it doesn't exist, then handle it specially.
• When checking for updates and if they don't exist, then just display them on that page
  • Show an info message like "Checking for updates for this package failed as it has been unlisted"