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Improve backup system

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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 #1641
Fixes #1536
Ref #1539 (removes possibility of race condition for backups)
This commit is contained in:
Zachary Yedidia
2020-06-22 17:54:56 -04:00
parent c5136820c4
commit a8332fd316
5 changed files with 68 additions and 27 deletions
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24
runtime/help/options.md
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@@ -37,21 +37,26 @@ Here are the available options:
closed cleanly. In the case of a system crash or a micro crash, the contents
of the buffer can be recovered automatically by opening the file that was
being edited before the crash, or manually by searching for the backup in
the backup directory. Backups are made in the background when a buffer is
modified and the latest backup is more than 8 seconds old, or when micro
detects a crash. It is highly recommended that you leave this feature
enabled.
the backup directory. Backups are made in the background for newly modified
buffers every 8 seconds, or when micro detects a crash.
default value: `true`
* `backupdir`: the directory micro should place backups in. For the default
value of `""` (empty string), the backup directory will be
`ConfigDir/backups`, which is `~/.config/micro/backups` by default. The
directory specified for backups will be created if it does not exist.
default value: `""` (empty string)
* `basename`: in the infobar and tabbar, show only the basename of the file
being edited rather than the full path.
default value: `false`
* `colorcolumn`: if this is not set to 0, it will display a column at the
specified column. This is useful if you want column 80 to be highlighted
special for example.
specified column. This is useful if you want column 80 to be highlighted
special for example.
default value: `0`
@@ -200,6 +205,13 @@ Here are the available options:
default value: `false`
* `permbackup`: this option causes backups (see `backup` option) to be
permanently saved. With permanent backups, micro will not remove backups when
files are closed and will never apply them to existing files. Use this option
if you are interested in manually managing your backup files.
default value: `false`
* `pluginchannels`: list of URLs pointing to plugin channels for downloading and
installing plugins. A plugin channel consists of a json file with links to
plugin repos, which store information about plugin versions and download URLs.