ec16969609
Automatic reparsing of %sh{...}, while convenient in many cases,
can be surprising as well, and can lead to security problems:
'echo %sh{ printf "foo\necho bar" }' runs 'echo foo', then 'echo bar'.
we make this danger explicit, and we fix the 'nop %sh{...}' pattern.
To reparse %sh{...} strings, they can be passed to evaluate-commands,
which has been fixed to work in every cases where %sh{...} reparsing
was used..
72 lines
2.8 KiB
Plaintext
72 lines
2.8 KiB
Plaintext
declare-option -docstring "remove backups once they've been restored" \
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bool autorestore_purge_restored true
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## Insert the content of the backup file into the current buffer, if a suitable one is found
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define-command autorestore-restore-buffer -docstring "Restore the backup for the current file if it exists" %{
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evaluate-commands %sh{
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buffer_basename="${kak_buffile##*/}"
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buffer_dirname=$(dirname "${kak_buffile}")
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if [ -f "${kak_buffile}" ]; then
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newer=$(find "${buffer_dirname}"/".${buffer_basename}.kak."* -newer "${kak_buffile}" -exec ls -1t {} + 2>/dev/null | head -n 1)
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older=$(find "${buffer_dirname}"/".${buffer_basename}.kak."* \! -newer "${kak_buffile}" -exec ls -1t {} + 2>/dev/null | head -n 1)
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else
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# New buffers that were never written to disk.
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newer=$(ls -1t "${buffer_dirname}"/".${buffer_basename}.kak."* 2>/dev/null | head -n 1)
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fi
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if [ -z "${newer}" ]; then
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if [ -n "${older}" ]; then
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printf %s\\n "
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echo -debug Old backup file(s) found: will not restore ${older} .
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"
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fi
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exit
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fi
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printf %s\\n "
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## Replace the content of the buffer with the content of the backup file
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echo -debug Restoring file: ${newer}
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execute-keys -draft %{ %d!cat<space>\"${newer}\"<ret>d }
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## If the backup file has to be removed, issue the command once
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## the current buffer has been saved
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## If the autorestore_purge_restored option has been unset right after the
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## buffer was restored, do not remove the backup
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hook -group autorestore buffer BufWritePost '${kak_buffile}' %{
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nop %sh{
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if [ \"\${kak_opt_autorestore_purge_restored}\" = true ];
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then
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rm -f \"${buffer_dirname}/.${buffer_basename}.kak.\"*
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fi
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}
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}
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"
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}
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}
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## Remove all the backups that have been created for the current buffer
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define-command autorestore-purge-backups -docstring "Remove all the backups of the current buffer" %{
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evaluate-commands %sh{
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[ ! -f "${kak_buffile}" ] && exit
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buffer_basename="${kak_bufname##*/}"
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buffer_dirname=$(dirname "${kak_bufname}")
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rm -f "${buffer_dirname}/.${buffer_basename}.kak."*
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printf %s\\n "
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echo -markup {Information}Backup files removed.
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"
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}
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}
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## If for some reason, backup files need to be ignored
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define-command autorestore-disable -docstring "Disable automatic backup recovering" %{
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remove-hooks global autorestore
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}
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hook -group autorestore global BufCreate .* %{ autorestore-restore-buffer }
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