[patch] Patch to fix color detection

bashrc_color_detection.patch (text/plain), 2.19 KB, created by Bernd Feige on 2016-01-23 20:39:12 UTC

=== modified file 'bash/bashrc'
--- bash/bashrc	2015-02-25 20:11:14 +0000
+++ bash/bashrc	2016-01-23 20:28:00 +0000
@@ -31,7 +31,10 @@
 # This does mean sessions get interleaved when reading later on, but this
 # way the history is always up to date.  History is not synced across live
 # sessions though; that is what `history -n` does.
-PROMPT_COMMAND='history -a'
+# Disabled by default due to concerns related to system recovery when $HOME
+# is under duress, or lives somewhere flaky (like NFS).  Constantly syncing
+# the history will halt the shell prompt until it's finished.
+#PROMPT_COMMAND='history -a'
 
 # Change the window title of X terminals 
 case ${TERM} in
@@ -51,27 +54,19 @@
 # Set colorful PS1 only on colorful terminals.
 # dircolors --print-database uses its own built-in database
 # instead of using /etc/DIR_COLORS.  Try to use the external file
-# first to take advantage of user additions.  Use internal bash
-# globbing instead of external grep binary.
-safe_term=${TERM//[^[:alnum:]]/?}   # sanitize TERM
-match_lhs=""
-[[ -f ~/.dir_colors   ]] && match_lhs="${match_lhs}$(<~/.dir_colors)"
-[[ -f /etc/DIR_COLORS ]] && match_lhs="${match_lhs}$(</etc/DIR_COLORS)"
-[[ -z ${match_lhs}    ]] \
-	&& type -P dircolors >/dev/null \
-	&& match_lhs=$(dircolors --print-database)
-[[ $'\n'${match_lhs} == *$'\n'"TERM "${safe_term}* ]] && use_color=true
+# first to take advantage of user additions.
+if type -P dircolors >/dev/null ; then
+	LS_COLORS=""
+	if [[ -f ~/.dir_colors ]] ; then
+		eval $(dircolors -b ~/.dir_colors)
+	elif [[ -f /etc/DIR_COLORS ]] ; then
+		eval $(dircolors -b /etc/DIR_COLORS)
+	fi
+	[[ -n "$LS_COLORS" ]] && use_color=true
+fi
+
 
 if ${use_color} ; then
-	# Enable colors for ls, etc.  Prefer ~/.dir_colors #64489
-	if type -P dircolors >/dev/null ; then
-		if [[ -f ~/.dir_colors ]] ; then
-			eval $(dircolors -b ~/.dir_colors)
-		elif [[ -f /etc/DIR_COLORS ]] ; then
-			eval $(dircolors -b /etc/DIR_COLORS)
-		fi
-	fi
-
 	if [[ ${EUID} == 0 ]] ; then
 		PS1+='\[\033[01;31m\]\h\[\033[01;34m\] \W \$\[\033[00m\] '
 	else
@@ -96,7 +91,7 @@
 done
 
 # Try to keep environment pollution down, EPA loves us.
-unset use_color safe_term match_lhs sh
+unset use_color sh
 
 # Own additions: