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Initial commit and first release~

master
Bandie 2 years ago
parent
commit
6a9c9db7b8
Signed by: Bandie GPG Key ID: 843D7FA93BA46312
  1. 18
      Makefile
  2. 37
      README.md
  3. 6
      build/etc/default/grub
  4. 51
      build/etc/grub.d/000_ownership
  5. 51
      etc/grub.d/000_ownership
  6. 82
      tools/grub_append_cfgkeys

18
Makefile

@ -0,0 +1,18 @@
# Author: Bandie <bandie@chaospott.de>
# Copyright: Bandie, 2019, GNU-GPLv3
all:
@echo "Nothing to make. Please run \"make install\"."
@exit 0
install:
@echo "Installing grub-ownership..."
install -vDm 755 etc/grub.d/000_ownership -t "$(PREFIX)/etc/grub.d/"
@echo "Appending not existent config keys..."
./tools/grub_append_cfgkeys -i $(PREFIX)/etc/default/grub
@echo "DONE!"
uninstall:
@echo "Remove grub-ownership..."
rm $(PREFIX)/etc/grub.d/000_ownership
@echo "Removing entries from config file..."
./tools/grub_append_cfgkeys -r $(PREFIX)/etc/default/grub
@echo "DONE!"

37
README.md

@ -1,2 +1,37 @@
# grub-ownership
Show an owner when grub is booting up
Show an owner when grub is booting up.
## Installation
```
sudo make install
# OR with an autotools like PREFIX:
sudo PREFIX=/another/root make install
```
## Configuration
Edit the file `/etc/default/grub`.
This is an example config
```
# Name and mail address of owner
OWNER="Alex Alexsen <a@a.tld>"
# Amounts of seconds for how long the owner information is displayed. It is skippable via ESC.
OWNER_TIMEOUT=10
```
## Uninstall
```
sudo make uninstall
# OR with an autotools like PREFIX:
sudo PREFIX=/another/root make uninstall
```

6
build/etc/default/grub

@ -0,0 +1,6 @@
# Name and mail address of owner
#OWNER="John Doe <john@doe.tld>"
# Amounts of seconds for how long the owner information is displayed. It is skippable via ESC. Default: 5
#OWNER_TIMEOUT=5

51
build/etc/grub.d/000_ownership

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#!/bin/sh
# Author: Bandie <bandie@chaospott.de>
# Copyright: Bandie, 2019, GNU-GPLv3
set -e
## Get params from /etc/default/grub
OWNER=$(cat /etc/default/grub | egrep "^OWNER=.*$" | sed "s/.*=\(.*\)/\1/;s/\"//g;s/'//g")
OWNER_TIMEOUT=$(cat /etc/default/grub | egrep "^OWNER_TIMEOUT=.*$" | sed "s/.*=\(.*\)/\1/;s/\"//g;s/'//g")
## Check if OWNER is set
if [ -z "$OWNER" ]; then
echo "/etc/default/grub: No OWNER set." >&2
exit 0
fi
## Notify user about ownership
echo "Show ==> $OWNER <== as owner" >&2
## Generate spaces in case if the owner has a very short name
for ((i=${#OWNER}; i<6; i++)); do
NSP="$NSP "
done
## Generate border around the owner message
B="##########"
for ((i=6; i<${#OWNER}; i++)); do
B="${B}#"
SPACE="$SPACE "
done
## Check if OWNER_TIMEOUT is set. If not, default 5
if ! [[ $OWNER_TIMEOUT =~ ^[0-9]+$ ]]; then
OWNER_TIMEOUT=5
echo "/etc/default/grub: No OWNER_TIMEOUT set. Using default: 5 seconds." >&2
fi
## Write it into the grub.cfg
cat << EOF
echo ""
echo "$B"
echo "# Owner: ${SPACE}#"
echo "# $OWNER $NSP#"
echo "$B"
echo ""
echo ""
sleep -i $OWNER_TIMEOUT
EOF

51
etc/grub.d/000_ownership

@ -0,0 +1,51 @@
#!/bin/sh
# Author: Bandie <bandie@chaospott.de>
# Copyright: Bandie, 2019, GNU-GPLv3
set -e
## Get params from /etc/default/grub
OWNER=$(cat /etc/default/grub | egrep "^OWNER=.*$" | sed "s/.*=\(.*\)/\1/;s/\"//g;s/'//g")
OWNER_TIMEOUT=$(cat /etc/default/grub | egrep "^OWNER_TIMEOUT=.*$" | sed "s/.*=\(.*\)/\1/;s/\"//g;s/'//g")
## Check if OWNER is set
if [ -z "$OWNER" ]; then
echo "/etc/default/grub: No OWNER set." >&2
exit 0
fi
## Notify user about ownership
echo "Show ==> $OWNER <== as owner" >&2
## Generate spaces in case if the owner has a very short name
for ((i=${#OWNER}; i<6; i++)); do
NSP="$NSP "
done
## Generate border around the owner message
B="##########"
for ((i=6; i<${#OWNER}; i++)); do
B="${B}#"
SPACE="$SPACE "
done
## Check if OWNER_TIMEOUT is set. If not, default 5
if ! [[ $OWNER_TIMEOUT =~ ^[0-9]+$ ]]; then
OWNER_TIMEOUT=5
echo "/etc/default/grub: No OWNER_TIMEOUT set. Using default: 5 seconds." >&2
fi
## Write it into the grub.cfg
cat << EOF
echo ""
echo "$B"
echo "# Owner: ${SPACE}#"
echo "# $OWNER $NSP#"
echo "$B"
echo ""
echo ""
sleep -i $OWNER_TIMEOUT
EOF

82
tools/grub_append_cfgkeys

@ -0,0 +1,82 @@
#!/bin/bash
# Author: Bandie <bandie@chaospott.de>
# Copyright: Bandie, 2019, GNU-GPLv3
CONFIG="/etc/default/grub"
TMPCFG="grub_tmp"
CFGKEYS=(
## 'COMMENT'
## 'KEY'
## 'EXAMPLE_VALUE'
'Name and mail address of owner'
'OWNER'
'"John Doe <john@doe.tld>"'
'Amounts of seconds for how long the owner information is displayed. It is skippable via ESC. Default: 5'
'OWNER_TIMEOUT'
'5'
)
function testPerms(){
if ! [ -e "$CONFIG" ]; then
echo "$0: ERROR: $CONFIG does not exist!"
exit 1
fi
if ! [ -w "$CONFIG" ]; then
echo "$0: ERROR: Permission denied for file $CONFIG"
exit 1
fi
}
function append(){
testPerms
for ((i=0; i<${#CFGKEYS[@]}; i+=3)); do
cat "$CONFIG" | grep "${CFGKEYS[(($i+1))]}" >> /dev/null
if [ $? -ne 0 ]; then
echo "Adding ${CFGKEYS[(($i+1))]} to $CONFIG..."
echo "" >> $CONFIG
echo "# ${CFGKEYS[$i]}" >> $CONFIG
echo "#${CFGKEYS[(($i+1))]}=${CFGKEYS[(($i+2))]}" >> $CONFIG
fi
done
}
function remove(){
testPerms
for ((i=0; i<${#CFGKEYS[@]}; i+=3)); do
echo "Removing ${CFGKEYS[(($i+1))]} from $CONFIG..."
sed "$!N;/${CFGKEYS[$i]}/!P;D" "$CONFIG" | sed "/.*${CFGKEYS[(($i+1))]}=.*/d" > "$TMPCFG"
cp "$TMPCFG" "$CONFIG"
done
rm $TMPCFG
}
function h(){
echo "$0: Usage:"
echo "$0 -i [ CONFIGFILE ] - Install config keys to config file. Configfile optional."
echo "$0 -r [ CONFIGFILE ] - Remove config keys from config file. Configfile optional."
}
if [ -n "$2" ]; then
CONFIG="$2"
fi
case $1 in
"-i")
append
;;
"-r")
remove
;;
*)
h
esac
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