X-Git-Url: https://git.distorted.org.uk/~mdw/rsync-backup/blobdiff_plain/915b95f48e8754956e3ac6c1f27b91beafc619e8..HEAD:/fshash.1

diff --git a/fshash.1 b/fshash.1
index 51580b8..8577d65 100644
--- a/fshash.1
+++ b/fshash.1
@@ -12,10 +12,20 @@
 .IR cache ]
 .RB [ \-f
 .IR format ]
+.RB [ \-C
+.IR version ]
 .RB [ \-H
 .IR hash ]
 .RI [ file
 \&...]
+.br
+.B fshash
+.RB \-u
+.B \-c
+.I cache
+.RB [ \-H
+.IR hash ]
+.RI [ dir ]
 .SH DESCRIPTION
 The
 .B fshash
@@ -87,6 +97,20 @@ format doesn't work well: see
 .B BUGS
 below.)
 .TP
+.B \-C, \-\-compat=\fIversion
+Produce a manifest with the given compatibility
+.IR version .
+Alas,
+.B fshash
+has bugs in the way it produces manifests.  Fixing the bugs makes the
+output better, but now it can't be compared with old manifests which
+were made with the bugs.  By default,
+.B fshash
+produces manifests in the most recent format, but this option will force
+it to be compatible with old versions.  The original version was 1; all
+later versions print a comment reporting the version number at the start
+of the manifest.  The current version is 2.
+.TP
 .B \-H, \-\-hash=\fIhash
 Use the
 .I hash
@@ -94,6 +118,14 @@ function, which can be any hash function supported by Python's
 .BR hashlib .
 This option may be omitted: if it is, then the hash is read from the
 cache file; if there is no cache file either, then an error is reported.
+.TP
+.B \-u, \-\-udiff
+Rather than produce a manifest, read a unified
+.BR diff (1)
+from standard input, and clear from the cache all files mentioned as
+being different.  Filenames in the diff are considered relative to
+.I dir ,
+defaulting to the current working directory.
 .PP
 Positional arguments are interpreted as files and directories to be
 processed, in order.  A directory name which ends in
@@ -110,7 +142,6 @@ hexadecimal.  For other kinds of filesystem object, a description of the
 object type and any special information about it, in square brackets,
 and padded with spaces so as to take the same width as a hash; see
 below for details.
-as follows.
 .hP 2.
 A `virtual inode identifier': a string which will be the same in two
 lines if and only if they represent hard links to the same underlying