zshrc: ignore hosts set to invalid/loopback addresses for $_etc_hosts

[grml-etc-core.git] / etc / zsh / zshrc

diff --git a/etc/zsh/zshrc b/etc/zsh/zshrc
index 718853f..22ed162 100644 (file)
--- a/etc/zsh/zshrc
+++ b/etc/zsh/zshrc
@@ -432,10 +432,6 @@ is4 && setopt share_history
 # save each command's beginning timestamp and the duration to the history file
 setopt extended_history
 
-# If a new command line being added to the history list duplicates an older
-# one, the older command is removed from the list
-is4 && setopt histignorealldups
-
 # remove command lines from the history list when the first character on the
 # line is a space
 setopt histignorespace
@@ -485,6 +481,7 @@ setopt unset
 
 # setting some default values
 NOCOR=${NOCOR:-0}
+NOETCHOSTS=${NOETCHOSTS:-0}
 NOMENU=${NOMENU:-0}
 NOPRECMD=${NOPRECMD:-0}
 COMMAND_NOT_FOUND=${COMMAND_NOT_FOUND:-0}
@@ -897,7 +894,7 @@ function grmlcomp () {
     if is42 ; then
         [[ -r ~/.ssh/config ]] && _ssh_config_hosts=(${${(s: :)${(ps:\t:)${${(@M)${(f)"$(<$HOME/.ssh/config)"}:#Host *}#Host }}}:#*[*?]*}) || _ssh_config_hosts=()
         [[ -r ~/.ssh/known_hosts ]] && _ssh_hosts=(${${${${(f)"$(<$HOME/.ssh/known_hosts)"}:#[\|]*}%%\ *}%%,*}) || _ssh_hosts=()
-        [[ -r /etc/hosts ]] && : ${(A)_etc_hosts:=${(s: :)${(ps:\t:)${${(f)~~"$(</etc/hosts)"}%%\#*}##[:blank:]#[^[:blank:]]#}}} || _etc_hosts=()
+        [[ -r /etc/hosts ]] && [[ "$NOETCHOSTS" -eq 0 ]] && : ${(A)_etc_hosts:=${(s: :)${(ps:\t:)${${(f)~~"$(grep -v '^0\.0\.0.\0\|^127\.0\.0\.1\|^::1 ' /etc/hosts)"}%%\#*}##[:blank:]#[^[:blank:]]#}}} || _etc_hosts=()
     else
         _ssh_config_hosts=()
         _ssh_hosts=()
@@ -905,14 +902,7 @@ function grmlcomp () {
     fi
 
     local localname
-    if check_com hostname ; then
-      localname=$(hostname)
-    elif check_com hostnamectl ; then
-      localname=$(hostnamectl --static)
-    else
-      localname="$(uname -n)"
-    fi
-
+    localname="$(uname -n)"
     hosts=(
         "${localname}"
         "$_ssh_config_hosts[@]"
@@ -2583,7 +2573,7 @@ function grml_reset_screen_title () {
     # see http://www.faqs.org/docs/Linux-mini/Xterm-Title.html
     [[ ${NOTITLE:-} -gt 0 ]] && return 0
     case $TERM in
-        (xterm*|rxvt*|alacritty)
+        (xterm*|rxvt*|alacritty|foot)
             set_title ${(%):-"%n@%m: %~"}
             ;;
     esac
@@ -2620,7 +2610,7 @@ function grml_cmd_to_screen_title () {
 
 function grml_control_xterm_title () {
     case $TERM in
-        (xterm*|rxvt*|alacritty)
+        (xterm*|rxvt*|alacritty|foot)
             set_title "${(%):-"%n@%m:"}" "$2"
             ;;
     esac
@@ -2687,6 +2677,11 @@ else
     alias l='command ls -l'
 fi
 
+# use ip from iproute2 with color support
+if ip --color=auto addr show dev lo >/dev/null 2>&1; then
+    alias ip='command ip --color=auto'
+fi
+
 if [[ -r /proc/mdstat ]]; then
     alias mdstat='cat /proc/mdstat'
 fi
@@ -3318,7 +3313,14 @@ zrcautoload lookupinit && lookupinit
 # variables
 
 # set terminal property (used e.g. by msgid-chooser)
-export COLORTERM="yes"
+case "${COLORTERM}" in
+  truecolor)
+    # do not overwrite
+    ;;
+  *)
+    export COLORTERM="yes"
+    ;;
+esac
 
 # aliases