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373 lines
9.9 KiB
373 lines
9.9 KiB
#!/bin/bash
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: <<'DISCLAIMER'
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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OTHER DEALINGS IN THE SOFTWARE.
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This script is licensed under the terms of the MIT license.
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Unless otherwise noted, code reproduced herein
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was written for this script.
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Originally written by the - The Pimoroni Crew -
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DISCLAIMER
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productname="Real Time Clock module" # the name of the product to install
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rtcsubtype="ds1307"
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baseurl="http://www.adafru.it"
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scriptname="rtc.sh" # the name of this script
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spacereq=1 # minimum size required on root partition in MB
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debugmode="no" # whether the script should use debug routines
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debuguser="none" # optional test git user to use in debug mode
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debugpoint="none" # optional git repo branch or tag to checkout
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forcesudo="yes" # whether the script requires to be ran with root privileges
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promptreboot="no" # whether the script should always prompt user to reboot
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customcmd="yes" # whether to execute commands specified before exit
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i2creq="yes" # whether the i2c interface is required
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i2sreq="no" # whether the i2s interface is required
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spireq="no" # whether the spi interface is required
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uartreq="no" # whether uart communication is required
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armhfonly="yes" # whether the script is allowed to run on other arch
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armv6="yes" # whether armv6 processors are supported
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armv7="yes" # whether armv7 processors are supported
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armv8="yes" # whether armv8 processors are supported
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raspbianonly="yes" # whether the script is allowed to run on other OSes
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macosxsupport="no" # whether Mac OS X is supported by the script
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osreleases=( "Raspbian" ) # list os-releases supported
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oswarning=( "Debian" "Ubuntu" "Mate" ) # list experimental os-releases
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squeezesupport="no" # whether Squeeze is supported
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wheezysupport="no" # whether Wheezy is supported
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jessiesupport="yes" # whether Jessie is supported
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FORCE=$1
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DEVICE_TREE=true
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ASK_TO_REBOOT=false
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CURRENT_SETTING=false
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UPDATE_DB=false
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BOOTCMD=/boot/cmdline.txt
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CONFIG=/boot/config.txt
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APTSRC=/etc/apt/sources.list
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INITABCONF=/etc/inittab
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BLACKLIST=/etc/modprobe.d/raspi-blacklist.conf
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LOADMOD=/etc/modules
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DTBODIR=/boot/overlays
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cred=`tput setaf 1`
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cyellow=`tput setaf 3`
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cgreen=`tput setaf 2`
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cblue=`tput setaf 4`
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creset=`tput sgr0`
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confirm() {
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if [ "$FORCE" == '-y' ]; then
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true
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else
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read -r -p "$1 [y/N] " response < /dev/tty
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if [[ $response =~ ^(yes|y|Y)$ ]]; then
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true
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else
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false
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fi
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fi
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}
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prompt() {
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read -r -p "$1 [y/N] " response < /dev/tty
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if [[ $response =~ ^(yes|y|Y)$ ]]; then
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true
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else
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false
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fi
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}
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success() {
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echo "$(tput setaf 2)$1$(tput sgr0)"
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}
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warning() {
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echo "$(tput setaf 1)$1$(tput sgr0)"
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}
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newline() {
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echo ""
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}
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sudocheck() {
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if [ $(id -u) -ne 0 ]; then
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echo -e "Install must be run as root. Try 'sudo ./$scriptname'\n"
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exit 1
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fi
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}
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sysclean() {
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sudo apt-get clean && sudo apt-get autoclean
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sudo apt-get -y autoremove &> /dev/null
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}
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sysupdate() {
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if ! $UPDATE_DB; then
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sudo apt-get update
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UPDATE_DB=true
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fi
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}
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sysupgrade() {
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sudo apt-get update && sudo apt-get upgrade
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sudo apt-get clean && sudo apt-get autoclean
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sudo apt-get -y autoremove &> /dev/null
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}
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sysreboot() {
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warning "Some changes made to your system require"
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warning "your computer to reboot to take effect."
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newline
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if prompt "Would you like to reboot now?"; then
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sync && sudo reboot
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fi
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}
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arch_check() {
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IS_ARMHF=false
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IS_ARMv6=false
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if uname -m | grep "armv.l" > /dev/null; then
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IS_ARMHF=true
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if uname -m | grep "armv6l" > /dev/null; then
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IS_ARMv6=true
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fi
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fi
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}
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os_check() {
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IS_RASPBIAN=false
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IS_MACOSX=false
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IS_SUPPORTED=false
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IS_EXPERIMENTAL=false
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if [ -f /etc/os-release ]; then
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if cat /etc/os-release | grep "Raspbian" > /dev/null; then
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IS_RASPBIAN=true && IS_SUPPORTED=true
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fi
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if command -v apt-get > /dev/null; then
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for os in ${osreleases[@]}; do
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if cat /etc/os-release | grep "$os" > /dev/null; then
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IS_SUPPORTED=true
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fi
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done
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for os in ${oswarning[@]}; do
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if cat /etc/os-release | grep "$os" > /dev/null; then
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IS_EXPERIMENTAL=true
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fi
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done
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fi
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elif uname -s | grep "Darwin" > /dev/null; then
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IS_MACOSX=true
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if [ $macosxsupport == "yes" ]; then
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IS_SUPPORTED=true
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fi
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fi
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}
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raspbian_check() {
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IS_SQUEEZE=false
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IS_WHEEZY=false
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IS_JESSIE=false
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if [ -f /etc/os-release ]; then
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if cat /etc/os-release | grep "jessie" > /dev/null; then
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IS_JESSIE=true
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elif cat /etc/os-release | grep "wheezy" > /dev/null; then
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IS_WHEEZY=true
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elif cat /etc/os-release | grep "squeeze" > /dev/null; then
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IS_SQUEEZE=true
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else
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echo "Unsupported distribution"
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exit 1
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fi
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fi
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}
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raspbian_old() {
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if $IS_SQUEEZE || $IS_WHEEZY ;then
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true
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else
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false
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fi
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}
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dt_check() {
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if [ -e $CONFIG ] && grep -q "^device_tree=$" $CONFIG; then
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DEVICE_TREE=false
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fi
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}
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i2c_check() {
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if [ -e $CONFIG ] && grep -q -E "^(device_tree_param|dtparam)=([^,]*,)*i2c(_arm)?(=(on|true|yes|1))?(,.*)?$" $CONFIG; then
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CURRENT_SETTING=true
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else
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CURRENT_SETTING=false
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fi
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}
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spi_check() {
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if [ -e $CONFIG ] && grep -q -E "^(device_tree_param|dtparam)=([^,]*,)*spi(=(on|true|yes|1))?(,.*)?$" $CONFIG; then
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CURRENT_SETTING=true
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else
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CURRENT_SETTING=false
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fi
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}
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get_init_sys() {
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if command -v systemctl > /dev/null && systemctl | grep -q '\-\.mount'; then
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SYSTEMD=1
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elif [ -f /etc/init.d/cron ] && [ ! -h /etc/init.d/cron ]; then
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SYSTEMD=0
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else
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echo "Unrecognised init system" && exit 1
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fi
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}
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get_hw_rev() {
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hwrid=$(grep "^Revision" /proc/cpuinfo | rev | cut -c 2-3 | rev)
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if [ "$hwrid" == "00" ] || [ "$hwrid" == "01" ];then # Pi 1
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hwver="$(grep "^Revision" /proc/cpuinfo | rev | cut -c 1-4 | rev)"
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if [ "$hwrid" == "00" ];then
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hwgen="126" # P1
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elif [ "$hwrid" == "01" ];then
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hwgen="140" # J8
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fi
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else
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hwver="$(grep "^Revision" /proc/cpuinfo | rev | cut -c 1-6 | rev)"
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if [ "$hwrid" == "04" ];then # Pi 2
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hwgen="240"
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elif [ "$hwrid" == "08" ];then # Pi 3
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hwgen="340"
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elif [ "$hwrid" == "09" ];then # Pi 0
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hwgen="040"
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else # Unknown
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hwgen="000"
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fi
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fi
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}
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: <<'MAINSTART'
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Perform all global variables declarations as well as function definition
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above this section for clarity, thanks!
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MAINSTART
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dt_check
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arch_check
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os_check
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if ! $IS_ARMHF; then
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warning "This hardware is not supported, sorry!"
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warning "Config files have been left untouched"
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newline && exit 1
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fi
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if $IS_RASPBIAN; then
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raspbian_check
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if [ $wheezysupport == "no" ] && raspbian_old; then
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newline && warning "--- Warning ---" && newline
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echo "The $productname installer"
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echo "does not work on this version of Raspbian."
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echo "Check https://github.com/$gitusername/$gitreponame"
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echo "for additional information and support"
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newline && exit 1
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fi
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elif [ $raspbianonly == "yes" ];then
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warning "This script is intended for Raspbian on a Raspberry Pi!"
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newline && exit 1
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else
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if ! $IS_SUPPORTED && ! $IS_EXPERIMENTAL; then
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warning "Your operating system is not supported, sorry!"
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warning "Config files have been left untouched"
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newline && exit 1
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fi
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fi
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if [ $forcesudo == "yes" ]; then
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sudocheck
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fi
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newline
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echo "This script will install everything needed to use"
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echo "$productname"
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newline
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warning "--- Warning ---"
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newline
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echo "Always be careful when running scripts and commands"
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echo "copied from the internet. Ensure they are from a"
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echo "trusted source."
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newline
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echo "If you want to see what this script does before"
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echo "running it, you should run:"
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echo " \curl -sS $baseurl/$scriptname"
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newline
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if confirm "Do you wish to continue?"; then
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newline
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echo "Checking hardware requirements..."
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if [ $i2creq == "yes" ]; then
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newline
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if confirm "Hardware requires I2C, enable now?"; then
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\curl -sS $baseurl/i2c.sh | bash -s - "-y"
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fi
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fi
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if ! $DEVICE_TREE; then
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newline
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warning "Device Tree support required!"
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warning "Config files have been left untouched"
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newline && exit 1
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fi
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read -r -p "What RTC would you like to install? [ds1307 ds3231 or pcf8523] " response < /dev/tty
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if [[ $response == "ds1307" || $response == "ds3231" || $response == "pcf8523" ]]; then
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rtcsubtype=$response
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else
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warning "RTC type $response not supported!"
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newline && exit 1
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fi
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echo "Disabling any current RTC"
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sudo sed --in-place '/dtoverlay[[:space:]]*=[[:space:]]*i2c-rtc/d' $CONFIG &> /dev/null
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echo "Adding DT overlay for $rtcsubtype"
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echo "dtoverlay=i2c-rtc,$rtcsubtype" | sudo tee -a $CONFIG &> /dev/null
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echo "Removing fake-hwclock"
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sudo apt-get -y remove fake-hwclock
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sudo update-rc.d -f fake-hwclock remove
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if ! [ -e "/lib/udev/hwclock-set" ]; then
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newline
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warning "Couldn't find /lib/udev/hwclock-set"
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newline && exit 1
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fi
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echo "${cyellow}Configuring HW Clock ${creset}"
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sudo sed --in-place '/if \[ -e \/run\/systemd\/system \] ; then/,+2 s/^#*/#/' /lib/udev/hwclock-set
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sysreboot
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else
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newline
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warning "Aborting..."
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newline
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fi
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exit 0
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