Possible feature: PackagerSnapshot command

[sporian-smckown]

I like vim-packager better than minpac because of its more useful feedback during install and update operations.

It would be nice in my use case to have an equivalent to vim-plug's PlugSnapshot command, which writes a vim buffer with the current plugins and their commit IDs, like so:

" Generated by vim-plug
" Mon 26 Sep 2022 02:36:23 PM MDT
" :source this file in vim to restore the snapshot
" or execute: vim -S snapshot.vim

silent! let g:plugs['base16-vim'].commit = '3be3cd82cd31acfcab9a41bad853d9c68d30478d'
silent! let g:plugs['fzf'].commit = '731daf0f37bcaa45ba6ec6f67f716a76c291ad35'
silent! let g:plugs['fzf.vim'].commit = '9ceac718026fd39498d95ff04fa04d3e40c465d7'
silent! let g:plugs['vim-fugitive'].commit = 'dd8107cabf5fe85df94d5eedcae52415e543f208'
silent! let g:plugs['vim-mkbuild'].commit = '8d497467bb03397587c1ae6364afb56542164484'
silent! let g:plugs['vim-sensible'].commit = '8985da7669bbd73afce85ef0e4a3e1ce2e488595'

PlugUpdate!

I write this to a file that I keep alongside vimrc in my dotfiles.git. If I ever update plugins and things break, I can revert the update by running the above vimscript. With this scheme, I can also revert to any previous version of my vim setup and easily replicate a setup to another computer.