Initial commit and first release~
This commit is contained in:
18
Makefile
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18
Makefile
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# Author: Bandie <bandie@chaospott.de>
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# Copyright: Bandie, 2019, GNU-GPLv3
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all:
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@echo "Nothing to make. Please run \"make install\"."
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@exit 0
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install:
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@echo "Installing grub-ownership..."
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install -vDm 755 etc/grub.d/000_ownership -t "$(PREFIX)/etc/grub.d/"
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@echo "Appending not existent config keys..."
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./tools/grub_append_cfgkeys -i $(PREFIX)/etc/default/grub
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@echo "DONE!"
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uninstall:
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@echo "Remove grub-ownership..."
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rm $(PREFIX)/etc/grub.d/000_ownership
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@echo "Removing entries from config file..."
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./tools/grub_append_cfgkeys -r $(PREFIX)/etc/default/grub
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@echo "DONE!"
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37
README.md
37
README.md
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# grub-ownership
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Show an owner when grub is booting up
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Show an owner when grub is booting up.
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## Installation
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```
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sudo make install
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# OR with an autotools like PREFIX:
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sudo PREFIX=/another/root make install
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```
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## Configuration
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Edit the file `/etc/default/grub`.
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This is an example config
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```
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# Name and mail address of owner
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OWNER="Alex Alexsen <a@a.tld>"
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# Amounts of seconds for how long the owner information is displayed. It is skippable via ESC.
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OWNER_TIMEOUT=10
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```
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## Uninstall
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```
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sudo make uninstall
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# OR with an autotools like PREFIX:
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sudo PREFIX=/another/root make uninstall
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```
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6
build/etc/default/grub
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6
build/etc/default/grub
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# Name and mail address of owner
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#OWNER="John Doe <john@doe.tld>"
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# Amounts of seconds for how long the owner information is displayed. It is skippable via ESC. Default: 5
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#OWNER_TIMEOUT=5
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51
build/etc/grub.d/000_ownership
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51
build/etc/grub.d/000_ownership
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#!/bin/sh
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# Author: Bandie <bandie@chaospott.de>
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# Copyright: Bandie, 2019, GNU-GPLv3
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set -e
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## Get params from /etc/default/grub
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OWNER=$(cat /etc/default/grub | egrep "^OWNER=.*$" | sed "s/.*=\(.*\)/\1/;s/\"//g;s/'//g")
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OWNER_TIMEOUT=$(cat /etc/default/grub | egrep "^OWNER_TIMEOUT=.*$" | sed "s/.*=\(.*\)/\1/;s/\"//g;s/'//g")
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## Check if OWNER is set
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if [ -z "$OWNER" ]; then
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echo "/etc/default/grub: No OWNER set." >&2
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exit 0
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fi
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## Notify user about ownership
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echo "Show ==> $OWNER <== as owner" >&2
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## Generate spaces in case if the owner has a very short name
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for ((i=${#OWNER}; i<6; i++)); do
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NSP="$NSP "
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done
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## Generate border around the owner message
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B="##########"
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for ((i=6; i<${#OWNER}; i++)); do
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B="${B}#"
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SPACE="$SPACE "
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done
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## Check if OWNER_TIMEOUT is set. If not, default 5
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if ! [[ $OWNER_TIMEOUT =~ ^[0-9]+$ ]]; then
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OWNER_TIMEOUT=5
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echo "/etc/default/grub: No OWNER_TIMEOUT set. Using default: 5 seconds." >&2
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fi
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## Write it into the grub.cfg
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cat << EOF
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echo ""
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echo "$B"
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echo "# Owner: ${SPACE}#"
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echo "# $OWNER $NSP#"
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echo "$B"
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echo ""
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echo ""
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sleep -i $OWNER_TIMEOUT
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EOF
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51
etc/grub.d/000_ownership
Executable file
51
etc/grub.d/000_ownership
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#!/bin/sh
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# Author: Bandie <bandie@chaospott.de>
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# Copyright: Bandie, 2019, GNU-GPLv3
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set -e
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## Get params from /etc/default/grub
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OWNER=$(cat /etc/default/grub | egrep "^OWNER=.*$" | sed "s/.*=\(.*\)/\1/;s/\"//g;s/'//g")
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OWNER_TIMEOUT=$(cat /etc/default/grub | egrep "^OWNER_TIMEOUT=.*$" | sed "s/.*=\(.*\)/\1/;s/\"//g;s/'//g")
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## Check if OWNER is set
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if [ -z "$OWNER" ]; then
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echo "/etc/default/grub: No OWNER set." >&2
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exit 0
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fi
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## Notify user about ownership
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echo "Show ==> $OWNER <== as owner" >&2
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## Generate spaces in case if the owner has a very short name
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for ((i=${#OWNER}; i<6; i++)); do
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NSP="$NSP "
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done
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## Generate border around the owner message
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B="##########"
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for ((i=6; i<${#OWNER}; i++)); do
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B="${B}#"
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SPACE="$SPACE "
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done
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## Check if OWNER_TIMEOUT is set. If not, default 5
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if ! [[ $OWNER_TIMEOUT =~ ^[0-9]+$ ]]; then
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OWNER_TIMEOUT=5
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echo "/etc/default/grub: No OWNER_TIMEOUT set. Using default: 5 seconds." >&2
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fi
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## Write it into the grub.cfg
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cat << EOF
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echo ""
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echo "$B"
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echo "# Owner: ${SPACE}#"
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echo "# $OWNER $NSP#"
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echo "$B"
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echo ""
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echo ""
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sleep -i $OWNER_TIMEOUT
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EOF
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82
tools/grub_append_cfgkeys
Executable file
82
tools/grub_append_cfgkeys
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#!/bin/bash
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# Author: Bandie <bandie@chaospott.de>
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# Copyright: Bandie, 2019, GNU-GPLv3
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CONFIG="/etc/default/grub"
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TMPCFG="grub_tmp"
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CFGKEYS=(
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## 'COMMENT'
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## 'KEY'
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## 'EXAMPLE_VALUE'
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'Name and mail address of owner'
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'OWNER'
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'"John Doe <john@doe.tld>"'
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'Amounts of seconds for how long the owner information is displayed. It is skippable via ESC. Default: 5'
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'OWNER_TIMEOUT'
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'5'
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)
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function testPerms(){
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if ! [ -e "$CONFIG" ]; then
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echo "$0: ERROR: $CONFIG does not exist!"
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exit 1
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fi
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if ! [ -w "$CONFIG" ]; then
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echo "$0: ERROR: Permission denied for file $CONFIG"
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exit 1
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fi
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}
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function append(){
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testPerms
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for ((i=0; i<${#CFGKEYS[@]}; i+=3)); do
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cat "$CONFIG" | grep "${CFGKEYS[(($i+1))]}" >> /dev/null
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if [ $? -ne 0 ]; then
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echo "Adding ${CFGKEYS[(($i+1))]} to $CONFIG..."
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echo "" >> $CONFIG
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echo "# ${CFGKEYS[$i]}" >> $CONFIG
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echo "#${CFGKEYS[(($i+1))]}=${CFGKEYS[(($i+2))]}" >> $CONFIG
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fi
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done
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}
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function remove(){
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testPerms
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for ((i=0; i<${#CFGKEYS[@]}; i+=3)); do
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echo "Removing ${CFGKEYS[(($i+1))]} from $CONFIG..."
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sed "$!N;/${CFGKEYS[$i]}/!P;D" "$CONFIG" | sed "/.*${CFGKEYS[(($i+1))]}=.*/d" > "$TMPCFG"
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cp "$TMPCFG" "$CONFIG"
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done
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rm $TMPCFG
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}
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function h(){
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echo "$0: Usage:"
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echo "$0 -i [ CONFIGFILE ] - Install config keys to config file. Configfile optional."
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echo "$0 -r [ CONFIGFILE ] - Remove config keys from config file. Configfile optional."
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}
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if [ -n "$2" ]; then
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CONFIG="$2"
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fi
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case $1 in
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"-i")
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append
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;;
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"-r")
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remove
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;;
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*)
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h
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esac
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