Various methods of Buffer should be rather methods of SharedBuffer. This
commit doesn't move all of them to SharedBuffer yet, only those that
need to be moved to SharedBuffer in order to be able to request creating
or removing backups in other SharedBuffer methods.
Instead of calculating the hash of the buffer every time Modified() is
called, do that every time b.isModified is updated (i.e. every time the
buffer is modified) and set b.isModified value accordingly.
This change means that the hash will be recalculated every time the user
types or deletes a character. But that is what already happens anyway,
since inserting or deleting characters triggers redrawing the display,
in particular redrawing the status line, which triggers Modified() in
order to show the up-to-date modified/unmodified status in the status
line. And with this change, we will be able to check this status
more than once during a single "handle event & redraw" cycle, while
still recalculating the hash only once.
- extract the open logic into `openFile()` and return a `wrappedFile`
- extract the closing logic into `Close()` and make a method of `wrappedFile`
- rename `writeFile()` into `Write()` and make a method of `wrappedFile`
This allows to use the split parts alone while keeping overwriteFile() as simple
interface to use all in a row.
This commit introduces several improvements to the backup system.
* Backups are made every 8 seconds for buffers that have been modified
since the last backup.
* The `permbackup` option allows users to specify that backups should
be kept permanently.
* `The backupdir` option allows users to store backups in a custom
directory.
Fixes#1641Fixes#1536
Ref #1539 (removes possibility of race condition for backups)
This change introduces header files for syntax files. The header
files only contain the filetype and detection info and can be
parsed much faster than parsing a full yaml file. To determine
which filetype a file is, only scanning the headers is necessary
and afterwards only one yaml file needs to be parsed. Use the
make_headers.go file to generate the header files. Micro expects
that all default syntax files will have header files and that
custom user syntax files may or may not have them. Resolving
includes within syntax has not yet been implemented. This
optimization improves startup time.
Ref #1427
With the new backup option, the autosave option is no longer useful.
Since it never really worked well in the first place, it has been
removed.
Closes#1420
