Hi Ricardo,

> I’d be happy if you could make these changes quickly and send an updated
> patch.  Once I receive it I’ll push it to a branch “wip-sahithi” in the
> repository.
>
I have made the above changes. Please notify if i have to make further
changes.

I mean while, I will be trying out using soft-ports.

Thanks

----
Sahithi
>From 64691615468bbb3e4b9e4bb2322a48c4b6a25d6d Mon Sep 17 00:00:00 2001
From: root <root@localhost.localdomain>
Date: Sat, 26 May 2018 23:28:19 +0530
Subject: [PATCH] ui: Add support for colorization.

* guix/ui.scm (color-table): New variable.
(colorize-string): New procedure.
---
 guix/ui.scm | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/guix/ui.scm b/guix/ui.scm
index 20fbf761f..efbcbc88b 100755
--- a/guix/ui.scm
+++ b/guix/ui.scm
@@ -9,7 +9,7 @@
 ;;; Copyright © 2015, 2016 Mathieu Lirzin <m...@gnu.org>
 ;;; Copyright © 2016 Roel Janssen <r...@gnu.org>
 ;;; Copyright © 2016 Benz Schenk <benz.sch...@uzh.ch>
-;;; Copyright © 2013,2014 Free Software Foundation, Inc.
+;;; Copyright © 2013, 2014 Free Software Foundation, Inc.
 ;;; Copyright © 2018 Sahithi Yarlagadda <s...@swecha.net>
 ;;; 
 ;;; This file is part of GNU Guix.
@@ -109,7 +109,6 @@
             warning
             info
             guix-main
-            color
             colorize-string))
 
 ;;; Commentary:
@@ -1582,7 +1581,7 @@ and signal handling has already been set up."
   (initialize-guix)
   (apply run-guix args))
 
-(define ansi-color-tables
+(define color-table
   `((CLEAR       .   "0")
     (RESET       .   "0")
     (BOLD        .   "1")
@@ -1610,9 +1609,11 @@ and signal handling has already been set up."
     (ON-WHITE    .  "47")))
 
 (define (color . lst)
+    "Returns a string containing the ANSI escape sequence for
+producing the requested set of attributes. Unknown attributes are ignored."
   (let ((color-list 
          (remove not 
-                 (map (lambda (color) (assq-ref ansi-color-tables color))
+                 (map (lambda (color) (assq-ref color-table color))
                       lst))))
     (if (null? color-list)
         ""
@@ -1626,5 +1627,9 @@ and signal handling has already been set up."
    (apply color color-list)
    str
    (color 'RESET)))
+    "Returns a copy of @var{str} colorized using ANSI
+escape sequences according to the attributes. At the end of the returned string, the color
+attributes will be reset such that subsequent output will not
+have any colors in effect."
 
 ;;; ui.scm ends here
-- 
2.11.0

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