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|
#!/bin/bash
### How does this script operate?
#
# Script's expectations:
# - To be run on one of the supported OSes
#
# Script's arguments:
# - (none)
#
# Steps that this script performs:
# - Verifies the presence of required binaries
# - If all are present, exit
# - Detect the OS, bail out if unknown/unsupported
# - Use the OS-specific package installation method to intall all required packages
#
### Shell configuration and script bootstrap
#
set -e
set -u
set -o pipefail
BOOTSTRAP_GIT_REPO_REQUIRED="false"
. `dirname $0`/_bootstrap.sh
### Definitions
#
# NOTICE: Certain changes here must potentially be reflected
# in the ../install/install-snoopy.sh file too.
#
PROGRAM_NAMES="autoconf aclocal curl diff file find gcc git gzip hostname libtoolize m4 make ps socat tar wget"
PACKAGE_NAMES_ALPINE="autoconf automake curl diffutils file gcc git gzip libtool m4 make procps socat tar wget alpine-sdk"
PACKAGE_NAMES_ARCH="autoconf automake curl diffutils file gcc git gzip inetutils libtool m4 make procps socat tar wget"
PACKAGE_NAMES_DEBIAN="autoconf automake curl diffutils file gcc git gzip libtool m4 make procps socat tar wget"
PACKAGE_NAMES_REDHAT="autoconf automake curl diffutils file gcc git gzip hostname libtool m4 make procps socat tar wget"
PACKAGE_NAMES_SUSE="autoconf automake awk curl diffutils file findutils gcc git gzip hostname libtool m4 make procps socat tar wget"
### Software check & install functions
#
# NOTICE: Keep this code in sync in the following files:
# - dev-tools/install-dev-software.sh
# - install/install-snoopy.sh
#
_areAllRequiredProgramsPresent()
{
# NOTICE: Keep this code in sync in the following files:
# - dev-tools/install-dev-software.sh
# - install/install-snoopy.sh
REQUIRED_PROGRAMS="$1"
ALL_REQUIRED_PROGRAMS_PRESENT="true"
for REQUIRED_PROGRAM in $REQUIRED_PROGRAMS; do
if ! command -v $REQUIRED_PROGRAM > /dev/null; then
ALL_REQUIRED_PROGRAMS_PRESENT="false"
_echo "The following program is missing: $REQUIRED_PROGRAM"
fi
done
if [ "$ALL_REQUIRED_PROGRAMS_PRESENT" == "true" ]; then
true
else
false
fi
}
_detectOperatingSystem()
{
# NOTICE: Keep this code in sync in the following files:
# - dev-tools/install-dev-software.sh
# - install/install-snoopy.sh
#
# Expects:
# - Global variable OS_ID set to ""
# - Global variable OS_VERSION set to ""
#
# Sets:
# - Global variable OS_ID
# - Global variable OS_VERSION
#
# Returns:
# - (nothing)
OS_ID=""
OS_VERSION=""
. /etc/os-release
OS_ID="$ID"
OS_VERSION="${VERSION_ID:-}"
# Debian Sid quirk
if [[ $OS_ID == "debian" ]] && [[ "$OS_VERSION" == "" ]]; then
OS_VERSION="sid"
fi
}
_installPackages()
{
# NOTICE: Keep this code in sync in the following files:
# - dev-tools/install-dev-software.sh
# - install/install-snoopy.sh
#
# Expects:
# - Global variable OS_ID
# - Global variable OS_VERSION
# - Global variable PACKAGE_NAMES_ALPINE
# - Global variable PACKAGE_NAMES_ARCH
# - Global variable PACKAGE_NAMES_DEBIAN
# - Global variable PACKAGE_NAMES_REDHAT
# - Global variable PACKAGE_NAMES_SUSE
#
# Sets:
# - (nothing)
#
# Returns:
# - false on error
USE_SUDO="sudo -n"
MY_UID=`id -u`
if [ "$MY_UID" == "0" ]; then
USE_SUDO=""
fi
case "$OS_ID" in
alpine)
$USE_SUDO apk add $PACKAGE_NAMES_ALPINE
;;
arch)
$USE_SUDO sudo pacman -Syu --noconfirm $PACKAGE_NAMES_ARCH
;;
debian|ubuntu)
DEBIAN_FRONTEND="noninteractive" $USE_SUDO apt-get update -y
DEBIAN_FRONTEND="noninteractive" $USE_SUDO apt-get install -y $PACKAGE_NAMES_DEBIAN
;;
rhel|centos|almalinux)
$USE_SUDO yum install -y --allowerasing $PACKAGE_NAMES_REDHAT
;;
sles|opensuse-leap|opensuse-tumbleweed)
$USE_SUDO zypper -n install $PACKAGE_NAMES_SUSE
;;
*)
_fatalError "Unknown OS: '$OS_ID'. Install the following programs manually: $PACKAGE_NAMES_DEBIAN"
;;
esac
}
### Check programs presence
#
if _areAllRequiredProgramsPresent "$PROGRAM_NAMES"; then
_echo "All required programs are already installed, nice."
exit
fi
# Now run the OS detection
#
OS_ID=""
OS_VERSION=""
_detectOperatingSystem
if [ "$OS_ID" == "" ]; then
_fatalError "Unable to detect your OS via /etc/os-release. Install the following programs manually: $PROGRAM_NAMES"
fi
### Now install the packages
#
_installPackages
### Recheck
#
if ! _areAllRequiredProgramsPresent "$PROGRAM_NAMES"; then
_fatalError "Even after installation, at least some of the required programs are still not available. Seems like a bug in this script."
else
_echo "All required programs are now installed."
fi
|
