dotnet-installer/scripts/obtain/install.sh
2016-03-21 12:46:16 -07:00

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# 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
# Stop script on NZEC
set -e
# Stop script if unbound variable found (use ${var:-} if intentional)
set -u
# By default cmd1 | cmd2 returns exit code of cmd2 regardless of cmd1 success
# This is causing it to fail
set -o pipefail
# Use in the the functions: eval $invocation
invocation='say_verbose "Calling: ${red:-}${FUNCNAME[0]} ${green:-}$*${normal:-}"'
# standard output may be used as a return value in the functions
# we need a way to write text on the screen in the functions so that
# it won't interfere with the return value.
# Exposing stream 3 as a pipe to standard output of the script itself
exec 3>&1
# Setup some colors to use. These need to work in fairly limited shells, like the Ubuntu Docker container where there are only 8 colors.
# See if stdout is a terminal
if [ -t 1 ]; then
# see if it supports colors
ncolors=$(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="$(tput setaf 7)"
fi
fi
say_err() {
printf "%b\n" "${red:-}dotnet_install: Error: $1${normal:-}" >&2
}
say() {
# using stream 3 (defined in the beginning) to not interfere with stdout of functions
# which may be used as return value
printf "%b\n" "${cyan:-}dotnet_install:${normal:-} $1" >&3
}
say_verbose() {
if [ "$verbose" = true ]; then
say "$1"
fi
}
get_current_os_name() {
eval $invocation
local uname=$(uname)
if [ "$uname" = "Darwin" ]; then
echo "osx"
return 0
else
# Detect Distro
if [ "$(cat /etc/*-release | grep -cim1 ubuntu)" -eq 1 ]; then
echo "ubuntu"
return 0
elif [ "$(cat /etc/*-release | grep -cim1 centos)" -eq 1 ]; then
echo "centos"
return 0
elif [ "$(cat /etc/*-release | grep -cim1 rhel)" -eq 1 ]; then
echo "rhel"
return 0
elif [ "$(cat /etc/*-release | grep -cim1 debian)" -eq 1 ]; then
echo "debian"
return 0
fi
fi
say_err "OS name could not be detected"
return 1
}
machine_has() {
eval $invocation
type "$1" > /dev/null 2>&1
return $?
}
check_min_reqs() {
if ! machine_has "curl"; then
say_err "curl is required to download dotnet. Install curl to proceed."
return 1
fi
return 0
}
check_pre_reqs() {
eval $invocation
local failing=false;
if [ "${DOTNET_INSTALL_SKIP_PREREQS:-}" = "1" ]; then
return 0
fi
if [ "$(uname)" = "Linux" ]; then
[ -z "$(ldconfig -p | grep libunwind)" ] && say_err "Unable to locate libunwind. Install libunwind to continue" && _failing=true
[ -z "$(ldconfig -p | grep libssl)" ] && say_err "Unable to locate libssl. Install libssl to continue" && _failing=true
[ -z "$(ldconfig -p | grep libcurl)" ] && say_err "Unable to locate libcurl. Install libcurl to continue" && _failing=true
[ -z "$(ldconfig -p | grep libicu)" ] && say_err "Unable to locate libicu. Install libicu to continue" && _failing=true
[ -z "$(ldconfig -p | grep gettext)" ] && say_err "Unable to locate gettext. Install gettext to continue" && _failing=true
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
return 0
}
# args:
# input - $1
to_lowercase() {
eval $invocation
echo "$1" | tr '[:upper:]' '[:lower:]'
return 0
}
# args:
# input - $1
remove_trailing_backslash() {
eval $invocation
echo "${1%/}"
return 0
}
# args:
# input - $1
remove_beginning_backslash() {
eval $invocation
echo "${1#/}"
return 0
}
# args:
# root_path - $1
# child_path - $2
combine_paths() {
eval $invocation
# TODO: Consider making it work with any number of paths. For now:
if [ ! -z "${3:-}" ]; then
say_err "combine_paths: Function takes two parameters."
return 1
fi
local root_path=$(remove_trailing_backslash $1)
local child_path=$(remove_beginning_backslash $2)
say_verbose "combine_paths: root_path=$root_path"
say_verbose "combine_paths: child_path=$child_path"
echo "$root_path/$child_path"
return 0
}
get_machine_architecture() {
eval $invocation
# Currently the only one supported
echo "x64"
return 0
}
# args:
# architecture - $1
get_cli_architecture_from_architecture() {
eval $invocation
local architecture=$(to_lowercase $1)
case $architecture in
auto)
echo "$(get_cli_architecture_from_architecture $(get_machine_architecture))"
return 0
;;
amd64|x64)
echo "x64"
return 0
;;
x86)
say_err "Architecture ``x86`` currently not supported"
return 1
;;
esac
say_err "Architecture not supported. If you think this is a bug, please report it at https://github.com/dotnet/cli/issues"
return 1
}
# version_info is a conceptual two line string representing commit hash and 4-part version
# format:
# Line 1: # commit_hash
# Line 2: # 4-part version
# args:
# version_text - stdin
get_version_from_version_info() {
eval $invocation
cat | tail -n 1
return 0
}
# args:
# version_text - stdin
get_commit_hash_from_version_info() {
eval $invocation
cat | head -n 1
return 0
}
# args:
# azure_feed - $1
# azure_channel - $2
# cli_architecture - $3
get_latest_version_info() {
eval $invocation
local azure_feed=$1
local azure_channel=$2
local cli_architecture=$3
local osname=$(get_current_os_name)
local version_file_url="$azure_feed/$azure_channel/dnvm/latest.$osname.version"
say_verbose "get_latest_version_info: latest url: $version_file_url"
download $version_file_url
return $?
}
# args:
# channel - $1
get_azure_channel_from_channel() {
eval $invocation
local channel=$(to_lowercase $1)
case $channel in
future|dev)
echo "dev"
return 0
;;
preview|beta)
echo "beta"
return 0
;;
production)
say_err "Production channel does not exist yet"
return 1
esac
say_err "``$1`` is an invalid channel name. Use one of the following: ``future``, ``preview``, ``production``"
return 1
}
# args:
# azure_feed - $1
# azure_channel - $2
# cli_architecture - $3
# version - $4
get_specific_version_from_version() {
eval $invocation
local azure_feed=$1
local azure_channel=$2
local cli_architecture=$3
local version=$(to_lowercase $4)
case $version in
latest)
local version_info="$(get_latest_version_info $1 $2 $3)"
say_verbose "get_specific_version_from_version: version_info=$version_info"
echo "$version_info" | get_version_from_version_info
return 0
;;
lkg)
say_err "``--version LKG`` not supported yet."
return 1
;;
*)
echo $version
return 0
;;
esac
}
# args:
# azure_feed - $1
# azure_channel - $2
# cli_architecture - $3
# specific_version - $4
construct_download_link() {
eval $invocation
local azure_feed=$1
local azure_channel=$2
local cli_architecture=$3
local specific_version=$4
local osname=$(get_current_os_name)
local download_link="$azure_feed/$azure_channel/Binaries/$specific_version/dotnet-$osname-$cli_architecture.$specific_version.tar.gz"
echo "$download_link"
return 0
}
get_user_share_path() {
eval $invocation
if [ ! -z "${DOTNET_INSTALL_DIR:-}" ]; then
echo $DOTNET_INSTALL_DIR
elif [ ! -z "${PREFIX:-}" ]; then
echo $PREFIX
else
echo "/usr/local/share/dotnet"
fi
return 0
}
# args:
# install_dir - $1
resolve_installation_path() {
eval $invocation
local install_dir=$1
if [ "$install_dir" == "<usershare>" ]; then
local user_share_path=$(get_user_share_path)
say_verbose "resolve_installation_path: share_path=$user_share_path"
echo "$user_share_path"
return 0
fi
echo "$install_dir"
return 0
}
# args:
# install_root - $1
get_installed_version_info() {
eval $invocation
local install_root=$1
local version_file=$(combine_paths "$install_root" "$local_version_file_relative_path")
say_verbose "Local version file: $version_file"
if [ ! -z "$version_file" ] | [ -r "$version_file" ]; then
local version_info="$(cat $version_file)"
echo "$version_info"
return 0
fi
say_verbose "Local version file not found."
return 0
}
# args:
# relative_or_absolute_path - $1
get_absolute_path() {
eval $invocation
local relative_or_absolute_path=$1
echo $(cd $(dirname "$1") && pwd -P)/$(basename "$1")
return 0
}
# args:
# zip_path - $1
# out_path - $2
extract_and_override_zip() {
eval $invocation
local zip_path=$1
local out_path=$2
local failed=false
tar -xzf "$zip_path" -C "$out_path" --overwrite &> /dev/null || failed=true
if [ "$failed" == true ]; then
say_err "Extraction failed"
return 1
fi
}
# args:
# remote_path - $1
# [out_path] - $2 - stdout if not provided
download() {
eval $invocation
local remote_path=$1
local out_path=${2:-}
local failed=false
if [ -z "$out_path" ]; then
curl --fail -s $remote_path || failed=true
else
curl --fail -s -o $out_path $remote_path || failed=true
fi
if [ "$failed" == true ]; then
say_err "Download failed"
return 1
fi
}
calculate_vars() {
eval $invocation
azure_channel=$(get_azure_channel_from_channel "$channel")
say_verbose "azure_channel=$azure_channel"
cli_architecture=$(get_cli_architecture_from_architecture "$architecture")
say_verbose "cli_architecture=$cli_architecture"
specific_version=$(get_specific_version_from_version $azure_feed $azure_channel $cli_architecture $version)
say_verbose "specific_version=$specific_version"
if [ -z "$specific_version" ]; then
say_err "Could not get version information."
return 1
fi
download_link=$(construct_download_link $azure_feed $azure_channel $cli_architecture $specific_version)
say_verbose "download_link=$download_link"
install_root=$(resolve_installation_path $install_dir)
say_verbose "install_root=$install_root"
}
install_dotnet() {
eval $invocation
local local_version_info=$(get_installed_version_info $install_root)
local local_version
local version_text
if [ -z "$local_version_info" ]; then
version_text="<No CLI installed>"
else
local_version=$(echo "$local_version_info" | get_version_from_version_info)
version_text=$local_version
fi
say_verbose "Local CLI version is: $version_text"
if [ ! -z "${local_version:-}" ] && [ "$specific_version" == "$local_version" ]; then
say "Your version of CLI is up-to-date."
return 0
fi
mkdir -p $install_root
zip_path=$(mktemp /tmp/dotnet.XXXXXX)
say_verbose "Zip path: $zip_path"
say "Downloading $download_link"
download "$download_link" $zip_path
say "Extracting zip"
extract_and_override_zip $zip_path $install_root
return 0
}
local_version_file_relative_path="/.version"
bin_folder_relative_path="/bin"
channel="preview"
version="Latest"
install_dir="<usershare>"
architecture="auto"
debug_symbols=false
dry_run=false
no_path=false
azure_feed="https://dotnetcli.blob.core.windows.net/dotnet"
verbose=false
while [ $# -ne 0 ]
do
name=$1
case $name in
-c|--channel)
shift
channel=$1
;;
-v|--version)
shift
version="$1"
;;
-p|--prefix)
shift
install_dir="$1"
;;
--arch|--architecture)
shift
architecture="$1"
;;
--debug-symbols)
debug_symbols=true
;;
--dry-run)
dry_run=true
;;
--no-path)
no_path=true
;;
--verbose)
verbose=true
;;
--azure-feed)
shift
azure_feed="$1"
;;
-?|--?|-h|--help)
script_name="$(basename $0)"
echo ".NET Tools Installer"
echo "Usage: $script_name [-c|--channel <CHANNEL>] [-v|--version <VERSION>] [-p|--prefix <DESTINATION>]"
echo " $script_name -h|-?|--help"
echo ""
echo "$script_name is a simple command line interface for obtaining dotnet cli."
echo ""
echo "Options:"
echo " -c,--channel <CHANNEL> Download from the CHANNEL specified (default: $channel)."
echo " -v,--version <VERSION> Use specific version, ``latest`` or ``lkg``. Defaults to ``latest``."
echo " -p,--prefix <PREFIX> Install under specified location (see Install Location below)"
echo " --arch Architecture of .NET Tools. Currently only x64 is supported."
echo " --architecture <ARCHITECTURE> Architecture of .NET Tools. Currently only x64 is supported."
echo " --debug-symbols Specifies if symbols should be included in the installation."
echo " --dry-run Do not perform installation. Display download link."
echo " --no-path Do not set PATH for the current process."
echo " --verbose Display diagnostics information."
echo " --azure-feed Azure feed location. Defaults to $azure_feed"
echo " -?,--?,-h,--help Shows this help message"
echo ""
echo "Install Location:"
echo " Location is chosen in following order:"
echo " - --prefix option"
echo " - Environmental variable DOTNET_INSTALL_DIR"
echo " - Environmental variable PREFIX"
echo " - /usr/local/share/dotnet"
exit 0
;;
*)
say_err "Unknown argument \`$name\`"
exit 1
;;
esac
shift
done
check_min_reqs
calculate_vars
if [ "$dry_run" == true ]; then
say "Payload URL: $download_link"
say "Repeatable invocation: .\$(basename $0) --version $specific_version --channel $channel --prefix $prefix"
else
check_pre_reqs
install_dotnet
fi
bin_path=$(get_absolute_path $(combine_paths $install_root $bin_folder_relative_path))
if [ "$no_path" == false ]; then
say "Adding to current process PATH: ``$bin_path``. Note: This change will be visible only when sourcing script."
export PATH=$PATH:$bin_path
else
say "Binaries of dotnet can be found in $bin_path"
fi
say "Installation finished successfuly."