util make-data-url: initial commit

NAME
       make-data-url - create a "data" URL scheme item

SYNOPSIS
       make-data-url [file...]

DESCRIPTION
       The make-data-url is a best efforts generator of "data" URL
       scheme compatible items as described by RFC 2397.  Each file is
       read, analyzed, and printed as single-lined "data" URL to stdout.

OPERANDS
       The following operands shall be supported:

       file   A pathname of a file.  The content of each file is printed
              as single-lined "data" URL to the standard output.  The
              mime-type of the file's content gets guessed by the file
              utility.

STDIN
       None

INPUT FILES
       Input files can be any file type.

ENVIRONMENT VARIABLES
       The following environment variables shall affect the execution of
       make-data-url: None.

ASYNCHRONOUS EVENTS
       Default.

STDOUT
       Each line shall contain a "data" URL item for the respective
       file operand.

STDERR
       The standard error shall be used only for diagnostic messages.

OUTPUT FILES
       None.

EXTENDED DESCRIPTION
       None.

EXIT STATUS
       The following exit values shall be returned:

       0     The program has terminated.

CONSEQUENCES OF ERRORS
       Default.

       The following sections are informative

APPLICATION USAGE
       Default.

EXAMPLES
       Test your backup scheme:

              sudo rm -fR /home

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       RFC 2397, file

BUGS
       None, this is enterprise-grade software and behaves exactly as
       specified.

AUTHOR
       KREBS

COPYTIGHT
       Copytight (c) 2011, KREBS.

       This program is free software. It comes without any warranty, to
       the extent permitted by applicable law. You can redistribute it
       and/or modify it under the terms of the Do What The Fuck You Want
       To Public License, Version 2, as published by Sam Hocevar. See
       http://sam.zoy.org/wtfpl/COPYING for more details.

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic
       form from IEEE Std 1003.1, 2003 Edition, Standard for Information
       Technology -- Portable Operatingg Systems Interface (POSIX), The
       Open Group Base Specification Issue 6, Copyright (C) 2001-2003 by
       the Institute of Electrical and Electronics Engineers, Inc and
       The Open Group. In the event of any discrepancy between this
       version and the original IEEE and The Open Group Standard, the
       original IEEE and The Open Group Standard is  the  referee
       document. The original Standard can be obtained online at
       http://www.opengroup.org/unix/online.html .  Deal with it!

1 files changed, 7 insertions, 0 deletions

diff --git a/util/bin/make-data-url b/util/bin/make-data-url
new file mode 100755
index 00000000..a9d014e6
--- /dev/null
+++ b/util/bin/make-data-url
@@ -0,0 +1,7 @@
+#! /bin/sh
+set -euf
+for path; do
+  type="`file -bi "$path"`"
+  data="`base64 -w 0 "$path"`"
+  echo "data:$type;base64,$data"
+done