syncthing/man/syncthing-stignore.5

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.TH "SYNCTHING-STIGNORE" "5" "Jul 28, 2018" "v0.14" "Syncthing"
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.SH NAME
syncthing-stignore \- Prevent files from being synchronized to other nodes
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.SH SYNOPSIS
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\&.stignore
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.fi
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.SH DESCRIPTION
.sp
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If some files should not be synchronized to other devices, a file called
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\fB\&.stignore\fP can be created containing file patterns to ignore. The
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\fB\&.stignore\fP file must be placed in the root of the folder. The
\fB\&.stignore\fP file itself will never be synced to other devices, although it can
\fB#include\fP files that \fIare\fP synchronized between devices. All patterns are
relative to the folder root.
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\fBNOTE:\fP
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Note that ignored files can block removal of an otherwise empty directory.
See below for the (?d) prefix to allow deletion of ignored files.
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.SH PATTERNS
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The \fB\&.stignore\fP file contains a list of file or path patterns. The
\fIfirst\fP pattern that matches will decide the fate of a given file.
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Regular file names match themselves, i.e. the pattern \fBfoo\fP matches
the files \fBfoo\fP, \fBsubdir/foo\fP as well as any directory named
\fBfoo\fP\&. Spaces are treated as regular characters.
.IP \(bu 2
Asterisk matches zero or more characters in a filename, but does not
match the directory separator. \fBte*st\fP matches \fBtest\fP,
\fBsubdir/telerest\fP but not \fBtele/rest\fP\&.
.IP \(bu 2
Double asterisk matches as above, but also directory separators.
\fBte**st\fP matches \fBtest\fP, \fBsubdir/telerest\fP and
\fBtele/sub/dir/rest\fP\&.
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Question mark matches a single character that is not the directory
separator. \fBte??st\fP matches \fBtebest\fP but not \fBteb/st\fP or
\fBtest\fP\&.
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Characters enclosed in square brackets \fB[]\fP are interpreted as a character range \fB[a\-z]\fP\&. Before using this syntax you should have a basic understanding of regular expression character classes.
.IP \(bu 2
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A pattern beginning with \fB/\fP matches in the current directory only.
\fB/foo\fP matches \fBfoo\fP but not \fBsubdir/foo\fP\&.
.IP \(bu 2
A pattern beginning with \fB#include\fP results in loading patterns
from the named file. It is an error for a file to not exist or be
included more than once. Note that while this can be used to include
patterns from a file in a subdirectory, the patterns themselves are
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still relative to the folder \fIroot\fP\&. Example:
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\fB#include more\-patterns.txt\fP\&.
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A pattern beginning with a \fB!\fP prefix negates the pattern: matching files
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are \fIincluded\fP (that is, \fInot\fP ignored). This can be used to override
more general patterns that follow. Note that files in ignored
directories can not be re\-included this way. This is due to the fact
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that Syncthing stops scanning when it reaches an ignored directory,
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so doesnt know what files it might contain.
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.IP \(bu 2
A pattern beginning with a \fB(?i)\fP prefix enables case\-insensitive pattern
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matching. \fB(?i)test\fP matches \fBtest\fP, \fBTEST\fP and \fBtEsT\fP\&. The
\fB(?i)\fP prefix can be combined with other patterns, for example the
pattern \fB(?i)!picture*.png\fP indicates that \fBPicture1.PNG\fP should
be synchronized. On Mac OS and Windows, patterns are always case\-insensitive.
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A pattern beginning with a \fB(?d)\fP prefix enables removal of these files if
they are preventing directory deletion. This prefix should be used by any OS
generated files which you are happy to be removed.
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.IP \(bu 2
A line beginning with \fB//\fP is a comment and has no effect.
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Windows does not support escaping \fB\e[foo \- bar\e]\fP\&.
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\fBNOTE:\fP
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Prefixes can be specified in any order (e.g. “(?d)(?i)”), but cannot be in a
single pair of parentheses (not “(?di)”).
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.SH EXAMPLE
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Given a directory layout:
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\&.DS_Store
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foo
foofoo
bar/
baz
quux
quuz
bar2/
baz
frobble
My Pictures/
Img15.PNG
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.fi
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.sp
and an \fB\&.stignore\fP file with the contents:
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(?d).DS_Store
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!frobble
!quuz
foo
*2
qu*
(?i)my pictures
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.fi
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.sp
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all files and directories called “foo”, ending in a “2” or starting with
“qu” will be ignored. The end result becomes:
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\&.DS_Store # ignored, will be deleted if gets in the way of parent directory removal
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foo # ignored, matches "foo"
foofoo # synced, does not match "foo" but would match "foo*" or "*foo"
bar/ # synced
baz # synced
quux # ignored, matches "qu*"
quuz # synced, matches "qu*" but is excluded by the preceding "!quuz"
bar2/ # ignored, matched "*2"
baz # ignored, due to parent being ignored
frobble # ignored, due to parent being ignored; "!frobble" doesn\(aqt help
My Pictures/ # ignored, matched case insensitive "(?i)my pictures" pattern
Img15.PNG # ignored, due to parent being ignored
.ft P
.fi
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.sp
\fBNOTE:\fP
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Please note that directory patterns ending with a slash
\fBsome/directory/\fP matches the content of the directory, but not the
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directory itself. If you want the pattern to match the directory and its
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content, make sure it does not have a \fB/\fP at the end of the pattern.
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.UNINDENT
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.SH EFFECTS ON “IN SYNC” STATUS
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.sp
Currently the effects on who is in sync with what can be a bit confusing
when using ignore patterns. This should be cleared up in a future
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version…
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.sp
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Assume two devices, Alice and Bob, where Alice has 100 files to share, but
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Bob ignores 25 of these. From Alices point of view Bob will become
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about 75% in sync (the actual number depends on the sizes of the
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individual files) and remain in “Syncing” state even though it is in
fact not syncing anything (\fI\%issue #623\fP <\fBhttps://github.com/syncthing/syncthing/issues/623\fP>). From Bobs point of view, its
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100% up to date but will show fewer files in both the local and global
view.
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.sp
If Bob adds files that have already been synced to the ignore list, they
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will remain in the “global” view but disappear from the “local” view.
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The end result is more files in the global folder than in the local,
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but still 100% in sync (\fI\%issue #624\fP <\fBhttps://github.com/syncthing/syncthing/issues/624\fP>). From Alices point of view, Bob
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will remain 100% in sync until the next reconnect, because Bob has
already announced that he has the files that are now suddenly ignored.
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.SH AUTHOR
The Syncthing Authors
.SH COPYRIGHT
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2014-2018, The Syncthing Authors
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