Support for gpg encrypted files

[farynaio]

I found git-gutter doesn't work with gpg encrypted files. Is there a way to activate this in current version or this feature is missing?

[gonewest818]

You want to track the changes you've made in the buffer containing decrypted gpg text?

I haven't looked at the code to confirm this but this is my initial reaction ... The system uses your version control "diff" to figure out what lines have changed, and because gpg files are decrypted on the fly into a buffer it's very likely one of two problems. (1) git-gutter can't figure out the which file to perform a diff against, or (2) git-gutter tries to diff the decrypted buffer where you are editing against the encrypted file which isn't doing what you meant. I'm not sure how to deal with item #2 safely since we really don't want to be creating additional plaintext copies of your gpg file on disk... that seems to defeat the purpose of having it encrypted in the first place?

[arichiardi]

The actual problem for me here is that git-gutter tries to write it's own temporary buffer, which actually triggers coding detection:

  select-safe-coding-system-interactively(1 10167 (raw-text no-conversion) (utf-8) nil raw-text)
  select-safe-coding-system(1 10167 utf-8 nil "/tmp/git-gutter-orig1cdyAL")
  git-gutter:write-original-content("/tmp/git-gutter-orig1cdyAL" "agenda/work.org.gpg")
  git-gutter:live-update()
  apply(git-gutter:live-update nil)
  timer-event-handler([nil 0 2 0 t git-gutter:live-update nil idle 0])

That select-safe-coding-system-interactively cannot know the coding of an encrypted *temp buffer* and a warning pops up:

These default coding systems were tried to encode text
in the buffer ‘ *temp file*-100837’:
...

As a workaround I am going to disable git-gutter on .org.gpg files for now (if possible).