Skip to content

Instantly share code, notes, and snippets.

@afmsavage
Created September 17, 2021 19:36
Show Gist options
  • Save afmsavage/8e9675a6ccd5458a48dc468dee4e093d to your computer and use it in GitHub Desktop.
Save afmsavage/8e9675a6ccd5458a48dc468dee4e093d to your computer and use it in GitHub Desktop.
removing dfinity stupid license agreement garbage
#!/usr/bin/env sh
## 000_header.sh
##
## Borrowed from rustup (https://sh.rustup.rs)
##
## This is just a little script that can be downloaded from the internet to
## install dfx. It just does platform detection, downloads the installer
## and runs it.
##
## You are NOT AUTHORIZED to remove any license agreements or prompts from the following script.
##
set -u
## install/010_manifest.sh
get_tag_from_manifest_json() {
cat \
| tr -d '\n' \
| grep -o "\"$1\":[[:space:]]*\"[a-zA-Z0-9.]*" \
| grep -o "[0-9.]*$"
}
## 020_flags.sh
DFX_BOOL_FLAGS=""
define_flag_BOOL() {
local VARNAME
VARNAME="flag_$(echo "$1" | tr /a-z/ /A-Z)"
eval "$VARNAME=\${$VARNAME:-}"
DFX_BOOL_FLAGS="${DFX_BOOL_FLAGS}--${1} $VARNAME $2"
}
get_flag_name() {
echo "$1"
}
get_var_name() {
echo "$2"
}
read_flags() {
while [ -n "$*" ]; do
local ARG=$1
shift
OLD_IFS="$IFS"
IFS=$'\n'
for line in ${DFX_BOOL_FLAGS}; do
[ "$line" ] || break
IFS="$OLD_IFS"
FLAG="$(get_flag_name "$line")"
VARNAME="$(get_var_name "$line")"
if [ "$ARG" == "$FLAG" ]; then
eval "$VARNAME=1"
fi
done
done
}
## 100_log.sh
log() {
if "$_ansi_escapes_are_valid"; then
printf "\33[1minfo:\33[0m %s\n" "$1" 1>&2
else
printf '%s\n' "$1" 1>&2
fi
}
say() {
printf 'dfinity-sdk: %s\n' "$1"
}
warn() {
if $_ansi_escapes_are_valid; then
printf "\33[1mwarn:\33[0m %s\n" "$1" 1>&2
else
printf '%s\n' "$1" 1>&2
fi
}
err() {
say "$1" >&2
exit 1
}
## 110_assert.sh
need_cmd() {
if ! check_cmd "$1"; then
err "need '$1' (command not found)"
fi
}
check_cmd() {
command -v "$1" >/dev/null 2>&1
}
assert_nz() {
if [ -z "$1" ]; then err "assert_nz $2"; fi
}
ensure() {
if ! "$@"; then err "command failed: $*"; fi
}
ignore() {
"$@"
}
## 200_downloader.sh
define_flag_BOOL "insecure" "Allows downloading from insecure URLs, either using HTTP or TLS 1.2 or less."
check_help_for() {
local _cmd
local _arg
local _ok
_cmd="$1"
_ok="y"
shift
if check_cmd sw_vers; then
case "$(sw_vers -productVersion)" in
10.13*) ;;
10.14*) ;;
10.15*) ;;
11.*) ;;
*)
warn "Detected OS X platform older than 10.13 (High Sierra)"
_ok="n"
;;
esac
fi
for _arg in "$@"; do
if ! "$_cmd" --help | grep -q -- "$_arg"; then
_ok="n"
fi
done
test "$_ok" = "y"
}
check_support_for() {
local err="$1"
shift
local cmd="$*"
! ($cmd 2>&1 | grep "$err" >/dev/null)
}
downloader() {
local _dld
if check_cmd curl; then
_dld=curl
elif check_cmd wget; then
_dld=wget
else
_dld='curl or wget'
fi
if [ "$1" = --check ]; then
need_cmd "$_dld"
elif [ "$_dld" = curl ]; then
if check_help_for curl --proto --tlsv1.2; then
curl --proto '=https' --tlsv1.2 --silent --show-error --fail --location "$1" --output "$2"
elif ! [ "$flag_INSECURE" ]; then
warn "Not forcing TLS v1.2, this is potentially less secure"
curl --silent --show-error --fail --location "$1" --output "$2"
else
err "TLS 1.2 is not supported on this platform. To force using it, use the --insecure flag."
fi
elif [ "$_dld" = wget ]; then
if check_help_for wget --https-only --secure-protocol; then
wget --https-only --secure-protocol=TLSv1_2 "$1" -O "$2"
elif ! [ "$flag_INSECURE" ]; then
warn "Not forcing TLS v1.2, this is potentially less secure"
wget "$1" -O "$2"
else
err "TLS 1.2 is not supported on this platform. To force using it, use the --insecure flag."
fi
else
err "Unknown downloader"
fi
}
## 300_license.sh
confirm_license() {
return 0
# if ! [ -t 0 ] && ! [ -p /dev/stdin ]; then
# printf "%s\n" "Please run in an interactive terminal."
# printf "%s\n" "Hint: Run sh -ci \"\$(curl -fsSL $SDK_WEBSITE/install.sh)\""
# exit 0
# fi
# cat <<EOF
#The DFINITY Canister SDK
#Copyright 2021 DFINITY Stiftung. All Rights Reserved.
#he DFINITY Canister SDK (the "Software") is licensed under the Alpha DFINITY
#Canister SDK License Agreement (the "License"). You may not use the Software
#except in compliance with the License. You may obtain a copy of the License at
# https://sdk.dfinity.org/sdk-license-agreement.txt
#The Software is provided to you AS IS and WITHOUT WARRANTY.
#Do you agree and wish to install the DFINITY Canister SDK [y/N]?
#EOF
# while true; do
# read -r resp
# case "$resp" in
# [Yy][Ee][Ss] | [Yy])
# return 0
# ;;
# [Nn][Oo] | [Nn] | '')
# return 1
# ;;
# *)
# printf "%b\n" "\033[2A"
# printf "%b " "\r\033[KAnswer with a yes or no to continue. [y/N]"
# ;;
#esac
#done
}
## 999_footer.sh
SDK_WEBSITE="https://sdk.dfinity.org"
DFX_RELEASE_ROOT="${DFX_RELEASE_ROOT:-$SDK_WEBSITE/downloads/dfx}"
DFX_MANIFEST_JSON_URL="${DFX_MANIFEST_JSON_URL:-$SDK_WEBSITE/manifest.json}"
DFX_VERSION="${DFX_VERSION:-}"
#SCRIPT_COMMIT_DESC="fbad68fcc63ec8d58580af11a34354f97c1004a5"
get_tag_from_manifest_json() {
cat \
| tr -d '\n' \
| grep -o "\"$1\":[[:space:]]*\"[a-zA-Z0-9.]*" \
| grep -o "[0-9.]*$"
}
get_manifest_version() {
local _version
_version="$(downloader "${DFX_MANIFEST_JSON_URL}" - | get_tag_from_manifest_json latest)" || return 2
printf %s "${_version}"
}
validate_install_dir() {
local dir="${1%/}"
if ! [ -d "$dir" ]; then
if ! mkdir -p "$dir"; then
if type sudo >/dev/null; then
sudo mkdir -p "$dir"
fi
fi
fi
! [ -d "$dir" ] && return 1
! [ -w "$dir" ] && return 2
case ":$PATH:" in
*:$dir:*) ;;
*) return 3 ;;
esac
return 0
}
sdk_install_dir() {
if [ "${DFX_INSTALL_ROOT:-}" ]; then
validate_install_dir "${DFX_INSTALL_ROOT}"
printf %s "${DFX_INSTALL_ROOT}"
elif validate_install_dir /usr/local/bin; then
printf %s /usr/local/bin
elif [ "$(uname -s)" = Darwin ]; then
validate_install_dir /usr/local/bin
printf %s /usr/local/bin
elif validate_install_dir /usr/bin; then
printf %s /usr/bin
else
printf %s "${HOME}/bin"
fi
}
main() {
_ansi_escapes_are_valid=false
if [ -t 2 ]; then
if [ "${TERM+set}" = 'set' ]; then
case "$TERM" in
xterm* | rxvt* | urxvt* | linux* | vt*)
_ansi_escapes_are_valid=true
;;
esac
fi
fi
read_flags "$@"
log "Executing dfx install script, commit: $SCRIPT_COMMIT_DESC"
downloader --check
need_cmd uname
need_cmd mktemp
need_cmd chmod
need_cmd mkdir
need_cmd rm
need_cmd tar
need_cmd gzip
need_cmd touch
if ! confirm_license; then
echo "Please accept the license to continue."
exit
fi
get_architecture || return 1
local _arch="$RETVAL"
assert_nz "$_arch" "arch"
if [ -z "${DFX_VERSION}" ]; then
DFX_VERSION=$(get_manifest_version)
fi
log "Version found: $DFX_VERSION"
local _dfx_url="${DFX_RELEASE_ROOT}/${DFX_VERSION}/${_arch}/dfx-${DFX_VERSION}.tar.gz"
local _dir
_dir="$(mktemp -d 2>/dev/null || ensure mktemp -d -t dfinity-sdk)"
local _dfx_archive="${_dir}/dfx.tar.gz"
local _dfx_file="${_dir}/dfx"
log "Creating uninstall script in ~/.cache/dfinity"
mkdir -p "${HOME}/.cache/dfinity/"
install_uninstall_script
log "Checking for latest release..."
ensure mkdir -p "$_dir"
ensure downloader "$_dfx_url" "$_dfx_archive"
tar -xf "$_dfx_archive" -O >"$_dfx_file"
ensure chmod u+x "$_dfx_file"
local _install_dir
_install_dir="$(sdk_install_dir)"
printf "%s\n" "Will install in: ${_install_dir}"
mkdir -p "${_install_dir}" || true
if [ -w "${_install_dir}" ]; then
MV="mv"
else
if ! type sudo >/dev/null; then
err "Install directory '${_install_dir}' not writable and sudo command not found"
fi
MV="sudo mv"
fi
$MV "$_dfx_file" "${_install_dir}" 2>/dev/null \
|| err "Failed to install the DFINITY Development Kit: please check your permissions and try again."
log "Installed $_install_dir/dfx"
ignore rm -rf "$_dir"
}
get_architecture() {
local _ostype _cputype _arch
_ostype="$(uname -s)"
_cputype="$(uname -m)"
if [ "$_ostype" = Darwin ] && [ "$_cputype" = i386 ]; then
if sysctl hw.optional.x86_64 | grep -q ': 1'; then
_cputype=x86_64
fi
fi
if [ "$_ostype" = Darwin ] && [ "$_cputype" = arm64 ]; then
_cputype=x86_64
fi
case "$_ostype" in
Linux)
_ostype=linux
;;
Darwin)
_ostype=darwin
;;
*)
err "unrecognized OS type: $_ostype"
;;
esac
case "$_cputype" in
x86_64 | x86-64 | x64 | amd64)
_cputype=x86_64
;;
*)
err "unknown CPU type: $_cputype"
;;
esac
_arch="${_cputype}-${_ostype}"
RETVAL="$_arch"
}
install_uninstall_script() {
set +u
local uninstall_file_path
local uninstall_script
uninstall_script=$(
cat <<'EOF'
#!/usr/bin/env sh
uninstall() {
check_rm "${DFX_INSTALL_ROOT}/dfx"
check_rm "${HOME}/bin/dfx"
check_rm /usr/local/bin/dfx /usr/bin/dfx
clean_cache
}
check_rm() {
local file
for file in "$@"
do
[ -e "${file}" ] && rm "${file}"
done
}
clean_cache() {
if [ -z "$HOME" ]; then
exit "HOME environment variable unset."
fi
rm -Rf "${HOME}/.cache/dfinity"
}
uninstall
EOF
)
set -u
assert_nz "${HOME}"
uninstall_file_path="${HOME}/.cache/dfinity/uninstall.sh"
log "uninstall path=${uninstall_file_path}"
rm -f "${uninstall_file_path}"
printf "%s" "$uninstall_script" >"${uninstall_file_path}"
ensure chmod u+x "${uninstall_file_path}"
}
main "$@" || exit $?
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment