From c0996cd7c6d88486dfdaafb61b518134e4371fa2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C5=82awomir=20Nizio?= <slawomir.nizio@sabayon.org>
Date: Thu, 26 Apr 2012 00:50:57 +0200
Subject: [PATCH] Extend eread to allow sorting (bug 413577).

---
 bin/eread   |   36 ++++++++++++++++++++++++++++++++++--
 man/eread.1 |   13 +++++++++++++
 2 files changed, 47 insertions(+), 2 deletions(-)

diff --git a/bin/eread b/bin/eread
index 7d0a970..381a8ed 100755
--- a/bin/eread
+++ b/bin/eread
@@ -5,6 +5,7 @@
 #
 # Author: Donnie Berkholz <spyderous@gentoo.org>
 # Updated by: Uwe Klosa <uwe.klosa@gmail.com>
+# Updated by: Slawomir Nizio <slawomir.nizio@sabayon.org>
 
 # Get prefix
 EPREFIX=${EPREFIX:-$(portageq envvar EPREFIX)}
@@ -30,9 +31,34 @@ fi
 # Set up select prompt
 PS3="Choice? "
 
+SORT=${EREAD_SORT_ORDER}
+
+find_unsorted() {
+	find . -type f | sed -e "s:\./::g"
+}
+find_by_name() {
+	find . -type f | sort | sed -e "s:\./::g"
+}
+find_by_time() {
+	find . -type f | awk -F: '{print $3,$1":"$2":"$3}' | sort \
+		| awk '{print $2}' | sed -e "s:\./::g"
+}
+find_files() {
+	case ${SORT} in
+		alphabet)
+			find_by_name
+			;;
+		time)
+			find_by_time
+			;;
+		*)
+			find_unsorted
+		;;
+	esac
+}
+
 select_loop() {
-	ANY_FILES=$(find . -type f)
-	ANY_FILES=$(echo ${ANY_FILES} | sed -e "s:\./::g")
+	ANY_FILES=$(find_files)
 
 	if [[ -z ${ANY_FILES} ]]; then
 		echo "No log items to read"
@@ -51,6 +77,12 @@ select_loop() {
 				QUIT="yes"
 				break
 				;;
+			a)
+				SORT="alphabet"
+				;;
+			t)
+				SORT="time"
+				;;
 			*)
 				if [ -f "$FILE" ]; then
 					${PAGER} ${FILE}
diff --git a/man/eread.1 b/man/eread.1
index 5e18214..b96892e 100644
--- a/man/eread.1
+++ b/man/eread.1
@@ -8,5 +8,18 @@ eread
 .SH "DESCRIPTION"
 .LP 
 This tool is used to display and manage ELOG files produced by portage version 2.1 and higher.
+.SH "USAGE"
+.LP
+You can use the following commands:
+.TP
+.B "q"
+Quit
+.TP
+.B "a"
+Sort alphabetically
+.TP
+.B "t"
+Sort by date
 .SH "ENVIRONMENT VARIABLES"
 The eread utility uses the PAGER environment variable to display the ELOG files. If the variable is not set, it defaults to /usr/bin/less.
+Another environment variable is EREAD_SORT_ORDER which can be set to specify default sort order of ELOG files. Values \fBalphabet\fP and \fBtime\fP are recognized. If EREAD_SORT_ORDER is not set or has another value, the output is unsorted.
-- 
1.7.8.4