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#!/bin/bash
# Util to pretty-print logfile of NetworkManager
#
# Unless setting NM_LOG_NO_COLOR it will colorize the output.
# Suppress coloring with:
# $ NM_LOG_NO_COLOR=1 NM-log ...
#
# If called without arguments, it either reads from stdin (if not
# connected to a terminal) or it shows the journal content.
#
# If called with first argument "j", it always shows the journal content.
#
# You can pass multiple filenames.
if [[ "$_" == "$0" ]]; then
NM_not_sourced=1
else
unset NM_not_sourced
fi
NM-show-journal() {
local since="$(systemctl show NetworkManager | sed -n 's/^ExecMainStartTimestamp=\(.*\) [A-Z0-9]\+$/\1/p')"
if [[ "$since" == "" ]]; then
echo "error detecting NM. Is it running?"
systemctl status NetworkManager
else
journalctl -o short-precise --since "$since" -b 0 -u NetworkManager "$@"
fi
}
NM-colorize() {
if [[ "$NM_LOG_NO_COLOR" == "" ]]; then
# poor man's coloring using grep.
# TODO: do it somehow better (and more efficient).
sed 's/\r$//' | \
GREP_COLOR='01;31' grep -a --color=always '^\|^\(.* \)\?<\(warn> \|error>\) \[[0-9.]*\]' | \
GREP_COLOR='01;33' grep -a --color=always '^\|^\(.* \)\?<info> \[[0-9.]*\]\( .*\<is starting\>.*$\)\?' | \
GREP_COLOR='01;37' grep -a --color=always '^\|\<platform:\( (.*)\)\? signal: .*$' | \
GREP_COLOR='01;34' grep -a --color=always '^\|\<platform\(-linux\)\?:\( (.*)\)\? link: \(add\|adding\|change\|setting\|deleting\)\>\|\<platform:\( (.*)\)\? address: \(deleting\|adding or updating\) IPv. address:\? \|\<platform:\( (.*)\)\? \(route\|ip4-route\|ip6-route\|qdisc\|tfilter\): \([a-z]\+\|adding or updating\|new\[0x[0-9A-Za-z]*\]\) \|\<platform-linux: sysctl: setting ' | \
GREP_COLOR='01;35' grep -a --color=always '^\|\<audit: .*$' | \
GREP_COLOR='01;32' grep -a --color=always '^\|\<device (.*): state change: ' |
if [[ "$NM_LOG_GREP" != "" ]]; then
GREP_COLOR='01;36' grep -a --color=always "^\\|$NM_LOG_GREP"
else
/usr/bin/cat -
fi
else
/usr/bin/cat -
fi
}
NM-log() {
local NM_LOG_GREP=
while [[ $# -gt 0 ]]; do
if [[ "$1" == "-h" ]]; then
shift
NM_LOG_GREP="${NM_LOG_GREP+$NM_LOG_GREP\\|}\\<$1\\>"
shift
else
break
fi
done
(
if [ "$1" == "j" ]; then
shift
NM-show-journal "$@"
elif [ "$#" -eq 0 -a -t 0 ]; then
NM-show-journal
else
a="${1--}"
shift
/usr/bin/less "$a" "$@"
fi
) | \
NM_LOG_GREP="$NM_LOG_GREP" NM-colorize | \
LESS=FRSXM less -R
}
if [[ "$NM_not_sourced" != "" ]]; then
NM-log "$@"
fi
|
