c379c5cbdc
This commit allows buffers that were not previously written to disk to be restored if a backup has been generated in their name. Consequently, we got rid of a few non-POSIX calls to `find` (using `-maxdepth` or `-delete`), and of the logic that detected the newest backup (which didn't seem a good reason enough to steer away from a portable command). Fixes #1236
61 lines
2.2 KiB
Plaintext
61 lines
2.2 KiB
Plaintext
## If set to true, backups will be removed as soon as they have been restored
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decl 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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def autorestore-restore-buffer -docstring "Restore the backup for the current file if it exists" %{
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%sh{
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buffer_basename="${kak_buffile##*/}"
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buffer_dirname=$(dirname "${kak_buffile}")
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## Find the name of the latest backup created for the buffer that was open
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backup_path=$(ls -1t ."${kak_bufname}".kak.* | head -n 1)
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if [ -z "${backup_path}" ]; then
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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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exec -draft %{ %d!cat<space>${backup_path}<ret>d }
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## If the backup file has to be removed, issue the command once
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## the current buffer has been saved
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## If the autorestore_purge_restored option has been unset right after the
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## buffer was restored, do not remove the backup
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hook -group autorestore buffer BufWritePost '${kak_buffile}' %{
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nop %sh{
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if [ \"\${kak_opt_autorestore_purge_restored}\" = true ]; then
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ls -1 '${buffer_dirname}'/.'${buffer_basename}'.kak.* | while read -r f; do
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rm -f \"\${f}\"
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done
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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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def autorestore-purge-backups -docstring "Remove all the backups of the current buffer" %{
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nop %sh{
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if [ ! -f "${kak_buffile}" ]; then
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exit
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fi
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buffer_basename="${kak_bufname##*/}"
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buffer_dirname=$(dirname "${kak_bufname}")
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ls -1 "${buffer_dirname}"/."${buffer_basename}".kak.* | while read -r f; do
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rm -f "${f}"
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done
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}
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echo -color Information 'Backup files removed'
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}
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## If for some reason, backup files need to be ignored
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def 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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