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148 lines (115 loc) · 3.33 KB
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#!/bin/sh
set -e
# Adapted from https://raw.githubusercontent.com/railwayapp/cli/master/install.sh
#
# oasdiff
# https://github.com/Tufin/oasdiff
INSTALL_DIR=${INSTALL_DIR:-"/usr/local/bin"}
BINARY_NAME=${BINARY_NAME:-"oasdiff"}
REPO_NAME="Tufin/oasdiff"
ISSUE_URL="https://github.com/Tufin/oasdiff/issues/new"
get_latest_release() {
curl --silent "https://api.github.com/repos/$1/releases/latest" | # Get latest release from GitHub api
grep '"tag_name":' | # Get tag line
sed -E 's/.*"([^"]+)".*/\1/' # Pluck JSON value
}
get_asset_name() {
echo "oasdiff_$1_$2_$3.tar.gz"
}
get_download_url() {
local asset_name=$(get_asset_name $1 $2 $3)
echo "https://github.com/Tufin/oasdiff/releases/download/v$1/${asset_name}"
}
get_checksum_url() {
echo "https://github.com/Tufin/oasdiff/releases/download/v$1/checksums.txt"
}
command_exists() {
command -v "$@" >/dev/null 2>&1
}
get_os() {
case "$(uname -s)" in
*linux* ) echo "linux" ;;
*Linux* ) echo "linux" ;;
*darwin* ) echo "darwin" ;;
*Darwin* ) echo "darwin" ;;
esac
}
get_machine() {
case "$(uname -m)" in
"x86_64"|"amd64"|"x64")
echo "amd64" ;;
"i386"|"i86pc"|"x86"|"i686")
echo "i386" ;;
"arm64"|"armv6l"|"aarch64")
echo "arm64"
esac
}
get_tmp_dir() {
echo $(mktemp -d)
}
do_checksum() {
echo "Validating checksum"
checksum_url=$(get_checksum_url $version)
get_checksum_url $version
expected_checksum=$(curl -sL $checksum_url | grep $asset_name | awk '{print $1}')
if command_exists sha256sum; then
checksum=$(sha256sum $asset_name | awk '{print $1}')
elif command_exists shasum; then
checksum=$(shasum -a 256 $asset_name | awk '{print $1}')
else
echo "Could not find a checksum program. Install shasum or sha256sum to validate checksum."
return 0
fi
if [ "$checksum" != "$expected_checksum" ]; then
echo "Checksums do not match"
exit 1
fi
}
do_install() {
asset_name=$(get_asset_name $version $os $machine)
download_url=$(get_download_url $version $os $machine)
command_exists curl || {
echo "curl is not installed"
exit 1
}
command_exists tar || {
echo "tar is not installed"
exit 1
}
local tmp_dir=$(get_tmp_dir)
echo "Temporary directory is $tmp_dir"
echo "Downloading $download_url"
(cd $tmp_dir && curl -sL -O "$download_url")
(cd $tmp_dir && do_checksum)
echo "Extracting tar file"
(cd $tmp_dir && tar -xzf "$asset_name")
echo "Installing $BINARY_NAME into $tmp_dir"
mv "$tmp_dir/$BINARY_NAME" $INSTALL_DIR
chmod +x $INSTALL_DIR/$BINARY_NAME
echo "Installed oasdiff to $INSTALL_DIR"
echo "Removing temporary directory"
rm -rf $tmp_dir
}
main() {
latest_tag=$(get_latest_release $REPO_NAME)
version=$(echo $latest_tag | sed 's/v//')
os=$(get_os)
if test -z "$os"; then
echo "$(uname -s) os type is not supported"
echo "Please create an issue so we can add support. $ISSUE_URL"
exit 1
fi
if [ "$os" == "darwin" ]; then
machine="all"
else
machine=$(get_machine)
fi
if test -z "$machine"; then
echo "$(uname -m) machine type is not supported"
echo "Please create an issue so we can add support. $ISSUE_URL"
exit 1
fi
do_install
echo "oasdiff is now installed! type 'oasdiff -h' to see a list of commands"
}
main