dotnet-installer/scripts/obtain/install.sh
2016-03-21 10:25:11 -07:00

275 lines
10 KiB
Bash
Executable file

# Copyright (c) .NET Foundation and contributors. All rights reserved.
# Licensed under the MIT license. See LICENSE file in the project root for full license information.
#
# Note: This script should be compatible with the dash shell used in Ubuntu. So avoid bashisms! See https://wiki.ubuntu.com/DashAsBinSh for more info
#setup some colors to use. These need to work in fairly limited shells, like the Ubuntu Docker container where there are only 8 colors.
#See if stdout is a terminal
if [ -t 1 ]; then
# see if it supports colors
ncolors=$(tput colors)
if [ -n "$ncolors" ] && [ $ncolors -ge 8 ]; then
bold="$(tput bold)"
normal="$(tput sgr0)"
black="$(tput setaf 0)"
red="$(tput setaf 1)"
green="$(tput setaf 2)"
yellow="$(tput setaf 3)"
blue="$(tput setaf 4)"
magenta="$(tput setaf 5)"
cyan="$(tput setaf 6)"
white="$(tput setaf 7)"
fi
fi
#Standardise OS name to what is put into filenames of the tarballs.
current_os()
{
local uname=$(uname)
if [ "$uname" = "Darwin" ]; then
echo "osx"
else
# Detect Distro
if [ "$(cat /etc/*-release | grep -cim1 ubuntu)" -eq 1 ]; then
echo "ubuntu"
elif [ "$(cat /etc/*-release | grep -cim1 centos)" -eq 1 ]; then
echo "centos"
elif [ "$(cat /etc/*-release | grep -cim1 rhel)" -eq 1 ]; then
echo "rhel"
elif [ "$(cat /etc/*-release | grep -cim1 debian)" -eq 1 ]; then
echo "debian"
fi
fi
}
machine_has() {
type "$1" > /dev/null 2>&1
return $?
}
#Not 100% sure at the moment that these checks are enough. We might need to take version into account or do something
#more complicated. This seemed like a good beginning though as it should catch the default "clean" machine case and give
#people an appropriate hint.
check_pre_reqs() {
local os=$(current_os)
local _failing=false;
if [ "$DOTNET_INSTALL_SKIP_PREREQS" = "1" ]; then
return 0
fi
if [ "$(uname)" = "Linux" ]; then
if ! [ -x "$(command -v ldconfig)" ]; then
echo "ldconfig is not in PATH, trying /sbin/ldconfig."
LDCONFIG_COMMAND="/sbin/ldconfig"
else
LDCONFIG_COMMAND="ldconfig"
fi
[ -z "$($LDCONFIG_COMMAND -p | grep libunwind)" ] && say_err "Unable to locate libunwind. Install libunwind to continue" && _failing=true
[ -z "$($LDCONFIG_COMMAND -p | grep libssl)" ] && say_err "Unable to locate libssl. Install libssl to continue" && _failing=true
[ -z "$($LDCONFIG_COMMAND -p | grep libcurl)" ] && say_err "Unable to locate libcurl. Install libcurl to continue" && _failing=true
[ -z "$($LDCONFIG_COMMAND -p | grep libicu)" ] && say_err "Unable to locate libicu. Install libicu to continue" && _failing=true
[ -z "$($LDCONFIG_COMMAND -p | grep gettext)" ] && say_err "Unable to locate gettext. Install gettext to continue" && _failing=true
fi
if [ "$_failing" = true ]; then
return 1
fi
}
say_err() {
printf "%b\n" "${red}dotnet_install: Error: $1${normal}" >&2
}
say() {
printf "%b\n" "dotnet_install: $1"
}
make_link() {
local target_name=$1
local src=$INSTALLDIR/cli/$target_name
local dest=$BINDIR/$target_name
say "Linking $dest -> $src"
if [ -e $dest ]; then
rm $dest
fi
ln -s $src $dest
}
make_bootstrap_link() {
local src=$INSTALLDIR/cli/bin/dotnet
local dest=$INSTALLDIR/cli/dotnet
say "Linking $dest -> $src"
if [ -e $dest ]; then
rm $dest
fi
ln -s $src $dest
}
install_dotnet()
{
if ! machine_has "curl"; then
printf "%b\n" "${red}curl is required to download dotnet. Install curl to proceed. ${normal}" >&2
return 1
fi
say "Preparing to install .NET Tools from '$CHANNEL' channel to '$INSTALLDIR'"
if [ -e "$PREFIX/share/dotnet/cli/dotnet" ] && [ ! -w "$PREFIX/share/dotnet/cli/dotnet" ]; then
say_err "dotnet cli is already installed and not writeable. Use 'curl -sSL <url> | sudo sh' to force install."
say_err "If you have previously installed the cli using a package manager or installer then that is why it is write protected, and you need to run sudo to install the new version."
say_err "Alternatively, removing the '$PREFIX/share/dotnet' directory completely before running the script will also resolve the issue."
return 1
fi
if ! check_pre_reqs; then
say_err "Ending install due to missing pre-reqs"
return 1;
fi
if [ "$VERSION" == "Latest" ]; then
local fileVersion=latest
else
local fileVersion=$VERSION
fi
local os=$(current_os)
local installLocation="$INSTALLDIR"
local dotnet_url="https://dotnetcli.blob.core.windows.net/dotnet/$CHANNEL/Binaries/$VERSION"
local dotnet_filename="dotnet-dev-$os-x64.$fileVersion.tar.gz"
if [ "$RELINK" = "0" ]; then
if [ "$FORCE" = "0" ]; then
local localVersion=$(tail -n 1 "$installLocation/cli/.version" 2>/dev/null)
if [ "$VERSION" == "Latest" ]; then
# Check if we need to bother
local remoteData="$(curl -s https://dotnetcli.blob.core.windows.net/dotnet/$CHANNEL/dnvm/latest.$os.x64.version)"
[ $? != 0 ] && say_err "Unable to determine latest version." && return 1
local remoteVersion=$(IFS="\n" && echo $remoteData | tail -n 1)
local remoteHash=$(IFS="\n" && echo $remoteData | head -n 1)
[ -z $localVersion ] && localVersion='<none>'
local localHash=$(head -n 1 "$installLocation/cli/.version" 2>/dev/null)
say "Latest Version: $remoteVersion"
say "Local Version: $localVersion"
[ "$remoteHash" = "$localHash" ] && say "${green}You already have the latest version.${normal}" && return 0
else
[ "$fileVersion" = "$localVersion" ] && say "${green}You already have the version $fileVersion.${normal}" && return 0
fi
fi
#This should noop if the directory already exists.
mkdir -p $installLocation
say "Downloading $dotnet_filename from $dotnet_url"
#Download file and check status code, error and return if we cannot download a cli tar.
local httpResult=$(curl -L -D - "$dotnet_url/$dotnet_filename" -o "$installLocation/$dotnet_filename" -# | grep "^HTTP/1.1" | head -n 1 | sed "s/HTTP.1.1 \([0-9]*\).*/\1/")
[ $httpResult -ne "302" ] && [ $httpResult -ne "200" ] && echo "${Red}HTTP Error $httpResult fetching the dotnet cli from $dotnet_url ${RCol}" && return 1
say "Extracting tarball"
#Any of these could fail for various reasons so we will check each one and end the script there if it fails.
rm -rf "$installLocation/cli_new"
mkdir "$installLocation/cli_new"
[ $? != 0 ] && say_err "failed to clean and create temporary cli directory to extract into" && return 1
tar -xzf "$installLocation/$dotnet_filename" -C "$installLocation/cli_new"
[ $? != 0 ] && say_err "failed to extract tar" && return 1
say "Moving new CLI into install location and symlinking"
rm -rf "$installLocation/cli"
[ $? != 0 ] && say_err "Failed to clean current dotnet install" && return 1
mv "$installLocation/cli_new" "$installLocation/cli"
elif [ ! -e "$installLocation/cli" ]; then
say_err "${red}cannot relink dotnet, it is not installed in $PREFIX!"
return 1
fi
if [ ! -z "$BINDIR" ]; then
make_link "dotnet"
fi
if [ -e "$installLocation/$dotnet_filename" ]; then
say "Cleaning $dotnet_filename"
if ! rm "$installLocation/$dotnet_filename"; then
say_err "Failed to delete tar after extracting."
return 1
fi
fi
}
FORCE=0
RELINK=0
while [ $# -ne 0 ]
do
name=$1
case $name in
-f|--force)
FORCE=1
;;
-r|--relink)
RELINK=1
;;
-c|--channel)
shift
CHANNEL=$1
;;
-v|--version)
shift
VERSION=$1
;;
-d|--destination)
shift
DOTNET_INSTALL_DIR=$1
;;
-?|-h|--help)
echo ".NET Tools Installer"
echo ""
echo "Usage:"
echo " $0 [-f|--force] [-r|--relink] [-c|--channel <CHANNEL>] [-d|--destination <DESTINATION>]"
echo " $0 -h|-?|--help"
echo ""
echo "Options:"
echo " -f,--force Force reinstallation even if you have the most recent version installed"
echo " -r,--relink Don't re-download, just recreate the links in $PREFIX/bin"
echo " -c,--channel <CHANNEL> Download from the CHANNEL specified (default: dev)"
echo " -d,--destination <PATH> Install under the specified root (see Install Location below)"
echo " -?,-h,--help Show this help message"
echo ""
echo "Install Location:"
echo " By default, this script installs the .NET Tools to /usr/local. However, if the PREFIX environment variable"
echo " is specified, that will be used as the installation root. If the DOTNET_INSTALL_DIR environment variable"
echo " is specified, it will be used as the installation root (overriding PREFIX). Finally, if the '--destination'"
echo " option is specified, it will override all environment variables and be used as the installation location"
echo ""
echo " After installation, the .NET Tools will be installed to the 'share/dotnet/cli' subdirectory of the "
echo " installation location (i.e. /usr/local/share/dotnet/cli). Binaries will be symlinked to the 'bin'"
echo " subdirectory of the installation location (i.e. /usr/local/bin/dotnet)"
exit 0
;;
esac
shift
done
#set default prefix (PREFIX is a fairly standard env-var, but we also want to allow the use the specific "DOTNET_INSTALL_DIR" one)
if [ -z "$DOTNET_INSTALL_DIR" ]; then
INSTALLDIR=/usr/local/share/dotnet
BINDIR=/usr/local/bin
else
INSTALLDIR=$DOTNET_INSTALL_DIR
BINDIR=
fi
[ -z "$CHANNEL" ] && CHANNEL="beta"
[ -z "$VERSION" ] && VERSION="Latest"
install_dotnet