kakoune/rc/extra/autorestore.kak

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decl -docstring "remove backups once they've been restored" \
bool autorestore_purge_restored true
## Insert the content of the backup file into the current buffer, if a suitable one is found
def autorestore-restore-buffer -docstring "Restore the backup for the current file if it exists" %{
%sh{
buffer_basename="${kak_buffile##*/}"
buffer_dirname=$(dirname "${kak_buffile}")
## Find the name of the latest backup created for the buffer that was open
backup_path=$(ls -1t ."${kak_bufname}".kak.* 2>/dev/null | head -n 1)
if [ -z "${backup_path}" ]; then
exit
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fi
printf %s\\n "
## Replace the content of the buffer with the content of the backup file
exec -draft %{ %d!cat<space>${backup_path}<ret>d }
## If the backup file has to be removed, issue the command once
## the current buffer has been saved
## If the autorestore_purge_restored option has been unset right after the
## buffer was restored, do not remove the backup
hook -group autorestore buffer BufWritePost '${kak_buffile}' %{
nop %sh{
if [ \"\${kak_opt_autorestore_purge_restored}\" = true ]; then
ls -1 '${buffer_dirname}'/.'${buffer_basename}'.kak.* 2>/dev/null | while read -r f; do
rm -f \"\${f}\"
done
fi
}
}
"
}
}
## Remove all the backups that have been created for the current buffer
def autorestore-purge-backups -docstring "Remove all the backups of the current buffer" %{
nop %sh{
if [ ! -f "${kak_buffile}" ]; then
exit
fi
buffer_basename="${kak_bufname##*/}"
buffer_dirname=$(dirname "${kak_bufname}")
ls -1 "${buffer_dirname}"/."${buffer_basename}".kak.* 2>/dev/null | while read -r f; do
rm -f "${f}"
done
}
echo -color Information 'Backup files removed'
}
## If for some reason, backup files need to be ignored
def autorestore-disable -docstring "Disable automatic backup recovering" %{
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remove-hooks global autorestore
}
hook -group autorestore global BufCreate .* %{ autorestore-restore-buffer }