mirror of
https://github.com/octoleo/syncthing.git
synced 2024-12-22 19:08:58 +00:00
197 lines
6.7 KiB
Groff
197 lines
6.7 KiB
Groff
.\" Man page generated from reStructuredText.
|
|
.
|
|
.TH "SYNCTHING-VERSIONING" "7" "February 22, 2017" "v0.14" "Syncthing"
|
|
.SH NAME
|
|
syncthing-versioning \- Keep automatic backups of deleted files by other nodes
|
|
.
|
|
.nr rst2man-indent-level 0
|
|
.
|
|
.de1 rstReportMargin
|
|
\\$1 \\n[an-margin]
|
|
level \\n[rst2man-indent-level]
|
|
level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
|
|
-
|
|
\\n[rst2man-indent0]
|
|
\\n[rst2man-indent1]
|
|
\\n[rst2man-indent2]
|
|
..
|
|
.de1 INDENT
|
|
.\" .rstReportMargin pre:
|
|
. RS \\$1
|
|
. nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin]
|
|
. nr rst2man-indent-level +1
|
|
.\" .rstReportMargin post:
|
|
..
|
|
.de UNINDENT
|
|
. RE
|
|
.\" indent \\n[an-margin]
|
|
.\" old: \\n[rst2man-indent\\n[rst2man-indent-level]]
|
|
.nr rst2man-indent-level -1
|
|
.\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
|
|
.in \\n[rst2man-indent\\n[rst2man-indent-level]]u
|
|
..
|
|
.SH DESCRIPTION
|
|
.sp
|
|
Syncthing supports archiving the old version of a file when it is deleted or
|
|
replaced with a newer version from the cluster. This is called "file
|
|
versioning" and uses one of the available \fIversioning strategies\fP described
|
|
below. File versioning is configured per folder and defaults to "no file
|
|
versioning", i.e. no old copies of files are kept.
|
|
.SH TRASH CAN FILE VERSIONING
|
|
.sp
|
|
This versioning strategy emulates the common "trash can" approach. When a file
|
|
is deleted or replaced due to a change on a remote device, it is a moved to
|
|
the trash can in the \fB\&.stversions\fP folder. If a file with the same name was
|
|
already in the trash can it is replaced.
|
|
.sp
|
|
A configuration option is available to clean the trash can from files older
|
|
than a specified number of days. If this is set to a positive number of days,
|
|
files will be removed when they have been in the trash can that long. Setting
|
|
this to zero prevents any files from being removed from the trash can
|
|
automatically.
|
|
.SH SIMPLE FILE VERSIONING
|
|
.sp
|
|
With "Simple File Versioning" files are moved to the \fB\&.stversions\fP folder
|
|
(inside your shared folder) when replaced or deleted on a remote device. This
|
|
option also takes a value in an input titled "Keep Versions" which tells
|
|
Syncthing how many old versions of the file it should keep. For example, if
|
|
you set this value to 5, if a file is replaced 5 times on a remote device, you
|
|
will see 5 time\-stamped versions on that file in the ".stversions" folder on
|
|
the other devices sharing the same folder.
|
|
.SH STAGGERED FILE VERSIONING
|
|
.sp
|
|
With "Staggered File Versioning" files are also moved to a different folder
|
|
when replaced or deleted on a remote device (just like "Simple File
|
|
Versioning"), however, versions are automatically deleted if they are older
|
|
than the maximum age or exceed the number of files allowed in an interval.
|
|
.sp
|
|
With this versioning method it\(aqs possible to specify where the versions are
|
|
stored, with the default being the \fB\&.stversions\fP folder inside the normal
|
|
folder path. If you set a custom version path, please ensure that it\(aqs on the
|
|
same partition or filesystem as the regular folder path, as moving files there
|
|
may otherwise fail. You can use an absolute path (this is recommended) or a
|
|
relative path. Relative paths are interpreted relative to Syncthing\(aqs current
|
|
or startup directory.
|
|
.sp
|
|
The following intervals are used and they each have a maximum number of files
|
|
that will be kept for each.
|
|
.INDENT 0.0
|
|
.TP
|
|
.B 1 Hour
|
|
For the first hour, the most recent version is kept every 30 seconds.
|
|
.TP
|
|
.B 1 Day
|
|
For the first day, the most recent version is kept every hour.
|
|
.TP
|
|
.B 30 Days
|
|
For the first 30 days, the most recent version is kept every day.
|
|
.TP
|
|
.B Until Maximum Age
|
|
Until maximum age, the most recent version is kept every week.
|
|
.TP
|
|
.B Maximum Age
|
|
The maximum time to keep a version in days. For example, to keep replaced or
|
|
deleted files in the ".stversions" folder for an entire year, use 365. If
|
|
only for 10 days, use 10. \fBNote: Set to 0 to keep versions forever.\fP
|
|
.UNINDENT
|
|
.SH EXTERNAL FILE VERSIONING
|
|
.sp
|
|
This versioning method delegates the decision on what to do to an external
|
|
command (program or script). The only configuration option is the name of the
|
|
command. This should be an absolute path name. Just prior to a file being
|
|
replaced, the command will be run with two parameters: the path to the folder,
|
|
and the path to the file within the folder.
|
|
.SS Example for Unixes
|
|
.sp
|
|
Lets say I want to keep the latest version of each file as they are replaced
|
|
or removed; essentially I want a "trash can"\-like behavior. For this, I create
|
|
the following script and store it as \fB/Users/jb/bin/onlylatest.sh\fP (i.e. the
|
|
\fBbin\fP directory in my home directory):
|
|
.INDENT 0.0
|
|
.INDENT 3.5
|
|
.sp
|
|
.nf
|
|
.ft C
|
|
#!/bin/sh
|
|
set \-eu
|
|
|
|
# Where I want my versions stored
|
|
versionspath=~/.trashcan
|
|
|
|
# The parameters we get from Syncthing
|
|
folderpath="$1"
|
|
filepath="$2"
|
|
|
|
# First ensure the dir where we need to store the file exists
|
|
outpath=\(gadirname "$versionspath/$filepath"\(ga
|
|
mkdir \-p "$outpath"
|
|
# Then move the file there
|
|
mv \-f "$folderpath/$filepath" "$versionspath/$filepath"
|
|
.ft P
|
|
.fi
|
|
.UNINDENT
|
|
.UNINDENT
|
|
.sp
|
|
I must ensure that the script has execute permissions (\fBchmod 755
|
|
onlylatest.sh\fP), then configure Syncthing with the above path as the command
|
|
name.
|
|
.sp
|
|
Lets assume I have a folder "default" in ~/Sync, and that within that folder
|
|
there is a file \fBdocs/letter.txt\fP that is being replaced or deleted. The
|
|
script will be called as if I ran this from the command line:
|
|
.INDENT 0.0
|
|
.INDENT 3.5
|
|
.sp
|
|
.nf
|
|
.ft C
|
|
$ /Users/jb/bin/onlylatest.sh /Users/jb/Sync docs/letter.txt
|
|
.ft P
|
|
.fi
|
|
.UNINDENT
|
|
.UNINDENT
|
|
.sp
|
|
The script will then move the file in question to
|
|
\fB~/.trashcan/docs/letter.txt\fP, replacing any previous version of that letter
|
|
that may already have been there.
|
|
.SS Example for Windows
|
|
.sp
|
|
On Windows we can use a batch script to perform the same "trash can"\-like
|
|
behavior as mentioned above. I created the following script and saved it as
|
|
\fBC:\eUsers\emfrnd\eScripts\eonlylatest.bat\fP\&.
|
|
.INDENT 0.0
|
|
.INDENT 3.5
|
|
.sp
|
|
.nf
|
|
.ft C
|
|
@echo off
|
|
|
|
:: We need command extensions for mkdir to create intermediate folders in one go
|
|
setlocal EnableExtensions
|
|
|
|
:: Where I want my versions stored
|
|
set VERSIONS_PATH=%USERPROFILE%\e.trashcan
|
|
|
|
:: The parameters we get from Syncthing, \(aq~\(aq removes quotes if any
|
|
set FOLDER_PATH=%~1
|
|
set FILE_PATH=%~2
|
|
|
|
:: First ensure the dir where we need to store the file exists
|
|
for %%F in ("%VERSIONS_PATH%\e%FILE_PATH%") do set OUTPUT_PATH=%%~dpF
|
|
if not exist "%OUTPUT_PATH%" mkdir "%OUTPUT_PATH%" || exit /B
|
|
|
|
:: Finally move the file, overwrite existing file if any
|
|
move /Y "%FOLDER_PATH%\e%FILE_PATH%" "%VERSIONS_PATH%\e%FILE_PATH%"
|
|
.ft P
|
|
.fi
|
|
.UNINDENT
|
|
.UNINDENT
|
|
.sp
|
|
Finally, I set \fBC:\eUsers\emfrnd\eScripts\eonlylatest.bat\fP as command name in
|
|
Syncthing.
|
|
.SH AUTHOR
|
|
The Syncthing Authors
|
|
.SH COPYRIGHT
|
|
2015, The Syncthing Authors
|
|
.\" Generated by docutils manpage writer.
|
|
.
|