config/git: import suckless sbase

i currently use the output of sha512sum in several
places of xbmk, which is a bit unreliable in case
output changes.

other cases where i use util outputs in variables
are probably reliable, because i'm using mostly
posix utilities in those.

to mitigate this, i now import suckless sbase, which
has a reasonable sha512sum implementation.

*every* binary it builds is being placed in build.list,
because i'll probably start using more of them.

for example, i may start modifying the "date"
implementation, adding the GNU-specific options that
i need as mentioned on init.sh

i'm importing it in util/ because the sha512sum
util is needed for verifying project sources, so
if sbase itself is a "project source", that means
we can into a chicken and egg bootstrapping problem.

this is sbase at revision:
055cc1ae1b3a13c3d8f25af0a4a3316590efcd48

Signed-off-by: Leah Rowe <leah@libreboot.org>

1 files changed, 69 insertions, 0 deletions

diff --git a/util/sbase/cut.1 b/util/sbase/cut.1
new file mode 100644
index 00000000..7a5174e6
--- /dev/null
+++ b/util/sbase/cut.1
@@ -0,0 +1,69 @@
+.Dd October 8, 2015
+.Dt CUT 1
+.Os sbase
+.Sh NAME
+.Nm cut
+.Nd extract columns of data
+.Sh SYNOPSIS
+.Nm
+.Fl b Ar list
+.Op Fl n
+.Op Ar file ...
+.Nm
+.Fl c Ar list
+.Op Ar file ...
+.Nm
+.Fl f Ar list
+.Op Fl d Ar delim
+.Op Fl s
+.Op Ar file ...
+.Sh DESCRIPTION
+.Nm
+out bytes, characters or delimited fields from each line of
+.Ar file
+and write to stdout.
+.Pp
+If no
+.Ar file
+is given or
+.Ar file
+is '-',
+.Nm
+reads from stdin.
+.Pp
+.Ar list
+is a comma or space separated list of numbers and ranges starting
+from 1.
+Ranges have the form 'N-M'. If N or M is missing, beginning or end
+of line is assumed.
+Numbers and ranges may be repeated, overlapping and in any order.
+.Pp
+Selected input is written in the same order it is read
+and is written exactly once.
+.Sh OPTIONS
+.Bl -tag -width Ds
+.It Fl b Ar list | Fl c Ar list
+.Ar list
+specifies byte | character positions.
+.It Fl d Ar delim
+Use
+.Ar delim
+as field delimiter, which can be an arbitrary string.
+Default is '\et'.
+.It Fl f Ar list
+.Ar list
+specifies field numbers.
+Lines not containing field delimiters are passed through, unless
+.Fl s
+is specified.
+.It Fl n
+Do not split multibyte characters.
+A character is written when its last byte is selected.
+.It Fl s
+Suppress lines not containing field delimiters.
+.El
+.Sh STANDARDS
+POSIX.1-2013.
+.Pp
+The possibility of separating numbers and ranges with a space and specifying
+multibyte delimiters of arbitrary length is an extension to that specification.