mirror of
https://github.com/ViViDboarder/shoestrap.git
synced 2024-12-26 05:27:53 +00:00
444 lines
9.5 KiB
Bash
444 lines
9.5 KiB
Bash
#!/bin/bash
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##############################################################################
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# DO NOT MODIFY THIS FILE. Instead, modify 'helpers/custom'.
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##############################################################################
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COOKBOOK_NAME="$(basename "$0")"
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if [ -z "$SHOESTRAP_BASE" ]; then
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DIR="$( cd "$( dirname "$0" )" && pwd )"
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else
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DIR="$SHOESTRAP_BASE"
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fi
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#
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# Run a given recipe.
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#
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# Arguments can be passed to the 'recipe' function. They will be accessible by
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# the recipe as $2, $3, $4, etc.
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#
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recipe () {
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CURRENT_RECIPE_NAME=$1
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DEFAULT_ASSETS_PATH="$DIR/assets/default/$CURRENT_RECIPE_NAME"
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COOKBOOK_ASSETS_PATH="$DIR/assets/$COOKBOOK_NAME/$CURRENT_RECIPE_NAME"
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local default_recipe="$DIR/recipes/default/$CURRENT_RECIPE_NAME"
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local cookbook_recipe="$DIR/recipes/$COOKBOOK_NAME/$CURRENT_RECIPE_NAME"
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if [ -f "$cookbook_recipe" ]; then
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log "Running recipe '$cookbook_recipe'..." 1
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separator
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# shellcheck source=/dev/null
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. "$cookbook_recipe"
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elif [ -f "$default_recipe" ]; then
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log "Running recipe '$default_recipe'..." 1
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separator
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# shellcheck source=/dev/null
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. "$default_recipe"
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else
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error "Could not find recipe for '$CURRENT_RECIPE_NAME'. Fail!"
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fi
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cd "$DIR" || error "Failed to find recipe"
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}
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#
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# Prints the 'finished' banner.
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#
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finished () {
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spacer 1
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separator "="
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echo " FINISHED: '$COOKBOOK_NAME'"
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separator "="
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spacer 1
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}
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#
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# Writes a log line to the screen
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#
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# If specified, the first parameter is the number of empty lines to print
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# before the log message.
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#
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# If specified, the second parameter is the number of empty lines to print
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# before the log message.
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#
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log () {
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if [[ $2 -gt 0 ]]; then
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spacer "$2"
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fi
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echo " * $1"
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if [[ $3 -gt 0 ]]; then
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spacer "$3"
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fi
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}
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#
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# Writes an error log line to the screen and exit with an error code.
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#
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error () {
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spacer 2
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echo " -> $1"
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spacer 2
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exit 1
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}
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#
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# Write one or many empty lines to the screen.
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#
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spacer () {
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if [ -n "$1" ]; then
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local spaces=$1
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else
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local spaces=1
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fi
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for (( i=0; i<spaces; i++ )) do
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echo ""
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done
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}
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#
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# noop
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#
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noop () {
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return 0
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}
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#
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# Write a separator to the screen.
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#
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# You can optionally specify the separator character. Default is '-'.
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#
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separator () {
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if [ -n "$1" ]; then
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local char=$1
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else
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local char='-'
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fi
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local width=""
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width=$(tput cols)
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for (( i=0; i < width-2; i++ )) do
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local output="$output$char"
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done
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echo "$output"
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}
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#
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# Update packages in package manager.
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#
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sudo_package_update () {
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log "Updating package manager..." 0 1
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detect_package_manager
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if [ "$PACKAGE_MANAGER" == 'apt-get' ]; then
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sudo apt-get update -y
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elif [ "$PACKAGE_MANAGER" == 'yum' ]; then
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sudo yum check-update -y
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elif [ "$PACKAGE_MANAGER" == 'port' ]; then
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sudo port selfupdate
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elif [ "$PACKAGE_MANAGER" == 'brew' ]; then
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brew update
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elif [ "$PACKAGE_MANAGER" == 'apk' ]; then
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true
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else
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error "Unknown package manager: $PACKAGE_MANAGER"
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fi
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# shellcheck disable=2181
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if [ $? -ne 0 ]; then
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error "An error occured while updating packages. Fail!"
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else
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spacer 2
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fi
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}
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#
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# Install a package or packages through package manager
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#
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sudo_package () {
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log "Installing packages '$*'..."
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detect_package_manager
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if [ "$PACKAGE_MANAGER" == 'apt-get' ]; then
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# shellcheck disable=2086,2048
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sudo env DEBIAN_FRONTEND=noninteractive apt-get install -y $*
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elif [ "$PACKAGE_MANAGER" == 'yum' ]; then
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# shellcheck disable=2086,2048
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sudo yum install -y $*
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elif [ "$PACKAGE_MANAGER" == 'port' ]; then
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# Unintuitive, but this skips all promps which should assume Y
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# shellcheck disable=2086,2048
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sudo port -N install $*
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elif [ "$PACKAGE_MANAGER" == 'brew' ]; then
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# shellcheck disable=2086,2048
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brew install $*
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elif [ "$PACKAGE_MANAGER" == 'apk' ]; then
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# shellcheck disable=2086,2048
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apk add $*
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else
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error "Unknown package manager: $PACKAGE_MANAGER"
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fi
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# shellcheck disable=2181
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if [ $? -ne 0 ]; then
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error "An error occured while installing packages. Fail!"
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else
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spacer 2
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fi
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}
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#
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# Determine if a package is installed or not.
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#
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# If package is installed, function will return 0. If not, it will return 1.
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#
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test_package_installed () {
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detect_package_manager
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# When many packages are specified, skip test.
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if [ $# -gt 1 ]; then
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return 1
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fi
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if [ "$PACKAGE_MANAGER" == 'apt-get' ]; then
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dpkg-query -l "$1" | grep -q ^.i
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return $?
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fi
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# Don't know how to detect if a package is installed with other package managers.
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return 1
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}
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#
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# Determine which package manager is in use on the system.
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#
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detect_package_manager () {
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if [ "$PACKAGE_MANAGER" != "" ]; then
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return 0
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fi
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if command_exist apt-get; then
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PACKAGE_MANAGER='apt-get'
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elif command_exist yum; then
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PACKAGE_MANAGER='yum'
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elif command_exist port; then
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PACKAGE_MANAGER='port'
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elif command_exist brew; then
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PACKAGE_MANAGER='brew'
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elif command_exists apk; then
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PACKAGE_MANAGER='apk'
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else
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error "Could not find a package manager. Fail!"
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fi
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log "Detected package manager: $PACKAGE_MANAGER"
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return 0
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}
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#
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# Determines if a command exist on the system.
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#
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command_exist () {
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command -v "$1" > /dev/null 2>&1;
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}
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#
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# Copy a file from the assets folder to the specified location.
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#
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copy () {
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local cookbook_assets_source="$COOKBOOK_ASSETS_PATH/$1"
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local default_assets_source="$DEFAULT_ASSETS_PATH/$1"
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local target="$2"
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if [ -f "$cookbook_assets_source" ]; then
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log "Copying $cookbook_assets_source to $target..."
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cp "$cookbook_assets_source" "$target"
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elif [ -f "$default_assets_source" ]; then
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log "Copying $default_assets_source to $target..."
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cp "$default_assets_source" "$target"
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else
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error "Could not find '$1' to copy. Fail!"
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fi
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}
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#
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# Link a file from the assets folder to the specified location.
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#
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link () {
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local src="$1"
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local cookbook_assets_source="$COOKBOOK_ASSETS_PATH/$1"
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local default_assets_source="$DEFAULT_ASSETS_PATH/$1"
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local target="$2"
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if [ -f "$src" ]; then
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src="$src"
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elif [ -d "$src" ]; then
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src="$src"
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elif [ -f "$cookbook_assets_source" ]; then
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src="$cookbook_assets_source"
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elif [ -f "$default_assets_source" ]; then
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src="$default_assets_source"
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elif [ -d "$cookbook_assets_source" ]; then
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src="$cookbook_assets_source"
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elif [ -d "$default_assets_source" ]; then
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src="$default_assets_source"
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else
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error "Could not find '$1' to link Fail!"
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fi
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ln -s "$src" "$target"
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}
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#
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# Attempt to link a file if it doesn't already exist
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#
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try_link () {
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local src="$1"
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local cookbook_assets_source="$COOKBOOK_ASSETS_PATH/$1"
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local default_assets_source="$DEFAULT_ASSETS_PATH/$1"
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local target="$2"
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if [ -f "$src" ]; then
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src="$src"
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elif [ -d "$src" ]; then
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src="$src"
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elif [ -f "$cookbook_assets_source" ]; then
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src="$cookbook_assets_source"
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elif [ -f "$default_assets_source" ]; then
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src="$default_assets_source"
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elif [ -d "$cookbook_assets_source" ]; then
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src="$cookbook_assets_source"
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elif [ -d "$default_assets_source" ]; then
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src="$default_assets_source"
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else
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error "Could not find '$1' to link Fail!"
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fi
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if [ -L "$2" ] && [ "$(readlink "$2")" == "$src" ] ; then
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log "Link already exists: $2"
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else
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log "Creating link: $2 -> $src"
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link "$1" "$2"
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fi
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}
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#
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# Add a user to the system.
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#
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add_user () {
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local user=$1
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local pass=$2
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local args=$3
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if id "$user" > /dev/null 2>&1 ; then
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log "User $user already exists. Skipped creation."
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else
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log "Adding user $user..."
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[ "$pass" == "" ] && pass=generate_password
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if [[ "$args" != *nohome* ]]; then
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/usr/sbin/useradd --password "$(openssl passwd -crypt "$pass")" --create-home "$user" --shell /bin/bash
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else
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/usr/sbin/useradd --password "$(openssl passwd -crypt "$pass")" "$user" --shell /bin/bash
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fi
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fi
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}
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#
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# Generate a random password.
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#
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generate_password() {
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local l=$1
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[ "$l" == "" ] && l=8
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tr -dc A-Za-z0-9_ < /dev/urandom | head -c ${l} | xargs
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}
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#
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# Run a command as another user
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#
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run_as () {
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local user=$1
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local cmd=$2
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log "Running command as '$user'..."
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log "$cmd"
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# sudo -u $user -H -s /bin/bash -c "$cmd"
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# sudo -u $user -s /bin/bash -i "$cmd"
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su -c "$cmd" -s /bin/bash "$user"
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}
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#
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# Add line to a file if line is not already present
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#
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add_line () {
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local line="$1"
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local file="$2"
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grep "$line" "$file" > /dev/null 2>&1
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# shellcheck disable=2181
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if [ $? -ne 0 ]; then
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log "Adding '$line' to '$file'..."
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echo "$line" >> "$file"
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else
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log "'$line' already in '$file'. Skipping."
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fi
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}
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#
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# Write a warning if user is not root.
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#
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warn_if_not_root () {
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[ "$(id -u)" = "0" ] ||
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{ echo "WARNING: You are NOT running this script as 'root'. You might want to consider that..."; }
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}
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#
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# Stops the execution of the script if user is not root.
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#
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fail_if_not_root () {
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[ "$(id -u)" = "0" ] || { echo "You must run this as 'root'. Exiting."; exit 1; }
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}
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#
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# Checks if a certain element has already been installed.
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#
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is_installed () {
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local args=$*
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local name=${args//[ \/:@]/-}
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if [[ -f ~/.shoestrap/installed/$name ]]; then
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log "'$name' is already installed."
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return 0
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else
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log "'$name' is not installed."
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return 1
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fi
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}
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#
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# Sets an element as installed.
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#
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set_installed () {
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local args=$*
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local name=${args//[ \/:@]/-}
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mkdir -p "$HOME/.shoestrap/installed"
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touch "$HOME/.shoestrap/installed/$name"
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}
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#
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# Promts a user for a Yn confirmation
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#
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prompt_yn () {
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read -p "$1 [y/n] " -n 1 -r
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echo # move to a new line
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if [[ $REPLY =~ ^[Yy]$ ]]; then
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return 0
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fi
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return 1
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}
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