1#!/bin/sh 2 3# This install script is intended to download and install the latest available 4# release of the dep dependency manager for Golang. 5# 6# It attempts to identify the current platform and an error will be thrown if 7# the platform is not supported. 8# 9# Environment variables: 10# - INSTALL_DIRECTORY (optional): defaults to $GOPATH/bin 11# - DEP_RELEASE_TAG (optional): defaults to fetching the latest release 12# - DEP_OS (optional): use a specific value for OS (mostly for testing) 13# - DEP_ARCH (optional): use a specific value for ARCH (mostly for testing) 14# 15# You can install using this script: 16# $ curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh 17 18set -e 19 20RELEASES_URL="https://github.com/golang/dep/releases" 21 22downloadJSON() { 23 url="$2" 24 25 echo "Fetching $url.." 26 if test -x "$(command -v curl)"; then 27 response=$(curl -s -L -w 'HTTPSTATUS:%{http_code}' -H 'Accept: application/json' "$url") 28 body=$(echo "$response" | sed -e 's/HTTPSTATUS\:.*//g') 29 code=$(echo "$response" | tr -d '\n' | sed -e 's/.*HTTPSTATUS://') 30 elif test -x "$(command -v wget)"; then 31 temp=$(mktemp) 32 body=$(wget -q --header='Accept: application/json' -O - --server-response "$url" 2> "$temp") 33 code=$(awk '/^ HTTP/{print $2}' < "$temp" | tail -1) 34 rm "$temp" 35 else 36 echo "Neither curl nor wget was available to perform http requests." 37 exit 1 38 fi 39 if [ "$code" != 200 ]; then 40 echo "Request failed with code $code" 41 exit 1 42 fi 43 44 eval "$1='$body'" 45} 46 47downloadFile() { 48 url="$1" 49 destination="$2" 50 51 echo "Fetching $url.." 52 if test -x "$(command -v curl)"; then 53 code=$(curl -s -w '%{http_code}' -L "$url" -o "$destination") 54 elif test -x "$(command -v wget)"; then 55 code=$(wget -q -O "$destination" --server-response "$url" 2>&1 | awk '/^ HTTP/{print $2}' | tail -1) 56 else 57 echo "Neither curl nor wget was available to perform http requests." 58 exit 1 59 fi 60 61 if [ "$code" != 200 ]; then 62 echo "Request failed with code $code" 63 exit 1 64 fi 65} 66 67findGoBinDirectory() { 68 EFFECTIVE_GOPATH=$(go env GOPATH) 69 # CYGWIN: Convert Windows-style path into sh-compatible path 70 if [ "$OS_CYGWIN" = "1" ]; then 71 EFFECTIVE_GOPATH=$(cygpath "$EFFECTIVE_GOPATH") 72 fi 73 if [ -z "$EFFECTIVE_GOPATH" ]; then 74 echo "Installation could not determine your \$GOPATH." 75 exit 1 76 fi 77 if [ -z "$GOBIN" ]; then 78 GOBIN=$(echo "${EFFECTIVE_GOPATH%%:*}/bin" | sed s#//*#/#g) 79 fi 80 if [ ! -d "$GOBIN" ]; then 81 echo "Installation requires your GOBIN directory $GOBIN to exist. Please create it." 82 exit 1 83 fi 84 eval "$1='$GOBIN'" 85} 86 87initArch() { 88 ARCH=$(uname -m) 89 if [ -n "$DEP_ARCH" ]; then 90 echo "Using DEP_ARCH" 91 ARCH="$DEP_ARCH" 92 fi 93 case $ARCH in 94 amd64) ARCH="amd64";; 95 x86_64) ARCH="amd64";; 96 i386) ARCH="386";; 97 ppc64) ARCH="ppc64";; 98 ppc64le) ARCH="ppc64le";; 99 s390x) ARCH="s390x";; 100 armv6*) ARCH="arm";; 101 armv7*) ARCH="arm";; 102 aarch64) ARCH="arm64";; 103 *) echo "Architecture ${ARCH} is not supported by this installation script"; exit 1;; 104 esac 105 echo "ARCH = $ARCH" 106} 107 108initOS() { 109 OS=$(uname | tr '[:upper:]' '[:lower:]') 110 OS_CYGWIN=0 111 if [ -n "$DEP_OS" ]; then 112 echo "Using DEP_OS" 113 OS="$DEP_OS" 114 fi 115 case "$OS" in 116 darwin) OS='darwin';; 117 linux) OS='linux';; 118 freebsd) OS='freebsd';; 119 mingw*) OS='windows';; 120 msys*) OS='windows';; 121 cygwin*) 122 OS='windows' 123 OS_CYGWIN=1 124 ;; 125 *) echo "OS ${OS} is not supported by this installation script"; exit 1;; 126 esac 127 echo "OS = $OS" 128} 129 130# identify platform based on uname output 131initArch 132initOS 133 134# determine install directory if required 135if [ -z "$INSTALL_DIRECTORY" ]; then 136 findGoBinDirectory INSTALL_DIRECTORY 137fi 138echo "Will install into $INSTALL_DIRECTORY" 139 140# assemble expected release artifact name 141if [ "${OS}" != "linux" ] && { [ "${ARCH}" = "ppc64" ] || [ "${ARCH}" = "ppc64le" ];}; then 142 # ppc64 and ppc64le are only supported on Linux. 143 echo "${OS}-${ARCH} is not supported by this instalation script" 144else 145 BINARY="dep-${OS}-${ARCH}" 146fi 147 148# add .exe if on windows 149if [ "$OS" = "windows" ]; then 150 BINARY="$BINARY.exe" 151fi 152 153# if DEP_RELEASE_TAG was not provided, assume latest 154if [ -z "$DEP_RELEASE_TAG" ]; then 155 downloadJSON LATEST_RELEASE "$RELEASES_URL/latest" 156 DEP_RELEASE_TAG=$(echo "${LATEST_RELEASE}" | tr -s '\n' ' ' | sed 's/.*"tag_name":"//' | sed 's/".*//' ) 157fi 158echo "Release Tag = $DEP_RELEASE_TAG" 159 160# fetch the real release data to make sure it exists before we attempt a download 161downloadJSON RELEASE_DATA "$RELEASES_URL/tag/$DEP_RELEASE_TAG" 162 163BINARY_URL="$RELEASES_URL/download/$DEP_RELEASE_TAG/$BINARY" 164DOWNLOAD_FILE=$(mktemp) 165 166downloadFile "$BINARY_URL" "$DOWNLOAD_FILE" 167 168echo "Setting executable permissions." 169chmod +x "$DOWNLOAD_FILE" 170 171INSTALL_NAME="dep" 172 173if [ "$OS" = "windows" ]; then 174 INSTALL_NAME="$INSTALL_NAME.exe" 175fi 176 177echo "Moving executable to $INSTALL_DIRECTORY/$INSTALL_NAME" 178mv "$DOWNLOAD_FILE" "$INSTALL_DIRECTORY/$INSTALL_NAME" 179