getmicro.sh (raw) (4443B)
1 #!/bin/sh 2 3 # This script installs micro. 4 # Modified from https://getmic.ro by gearsix 5 6 printError() { 7 >&2 echo $1 8 } 9 10 checkPermissions() { 11 if [ ! -r $GETMICRO_INSTALLDIR ] || [ ! -w $GETMICRO_INSTALLDIR ]; then 12 printError "'$GETMICRO_INSTALLDIR': Permission denied" 13 exit 14 fi 15 } 16 17 githubLatestTag() { 18 latestJSON="$( eval "$http 'https://api.github.com/repos/$1/releases/latest'" 2>/dev/null )" || true 19 20 versionNumber='' 21 if ! echo "$latestJSON" | grep 'API rate limit exceeded' >/dev/null 2>&1 ; then 22 if ! versionNumber="$( echo "$latestJSON" | grep -oEm1 '[0-9]+[.][0-9]+[.][0-9]+' - 2>/dev/null )" ; then 23 versionNumber='' 24 fi 25 fi 26 27 if [ "${versionNumber:-x}" = "x" ] ; then 28 # Try to fallback to previous latest version detection method if curl is available 29 if command -v curl >/dev/null 2>&1 ; then 30 if finalUrl="$( curl "https://github.com/$1/releases/latest" -s -L -I -o /dev/null -w '%{url_effective}' 2>/dev/null )" ; then 31 trimmedVers="${finalUrl##*v}" 32 if [ "${trimmedVers:-x}" != "x" ] ; then 33 echo "$trimmedVers" 34 exit 0 35 fi 36 fi 37 fi 38 39 printError "HTTP File download failed." 40 exit 1 41 else 42 echo "$versionNumber" 43 fi 44 } 45 46 47 # get HTTP fetch command 48 if command -v curl >/dev/null 2>&1 ; then 49 http="curl -L" 50 elif command -v wget >/dev/null 2>&1 ; then 51 http="wget -O-" 52 else 53 printError "Couldn't find commands 'curl' or 'wget' on your system." 54 exit 1 55 fi 56 57 # get platform 58 platform='' 59 machine=$(uname -m) 60 61 if [ "${GETMICRO_PLATFORM:-x}" != "x" ]; then 62 platform="$GETMICRO_PLATFORM" 63 else 64 case "$(uname -s | tr '[:upper:]' '[:lower:]')" in 65 "linux") 66 case "$machine" in 67 "arm64"* | "aarch64"* ) platform='linux-arm64' ;; 68 "arm"* | "aarch"*) platform='linux-arm' ;; 69 *"86") platform='linux32' ;; 70 *"64") platform='linux64' ;; 71 esac 72 ;; 73 "darwin") platform='osx' ;; 74 *"freebsd"*) 75 case "$machine" in 76 *"86") platform='freebsd32' ;; 77 *"64") platform='freebsd64' ;; 78 esac 79 ;; 80 "openbsd") 81 case "$machine" in 82 *"86") platform='openbsd32' ;; 83 *"64") platform='openbsd64' ;; 84 esac 85 ;; 86 "netbsd") 87 case "$machine" in 88 *"86") platform='netbsd32' ;; 89 *"64") platform='netbsd64' ;; 90 esac 91 ;; 92 "msys"*|"cygwin"*|"mingw"*|*"_nt"*|"win"*) 93 case "$machine" in 94 *"86") platform='win32' ;; 95 *"64") platform='win64' ;; 96 esac 97 ;; 98 esac 99 fi 100 101 if [ "${platform:-x}" = "x" ]; then 102 printError "Couldn't automatically detect operating system. 103 Set GETMICRO_PLATFORM to one of the following values: 104 105 - freebsd32 106 - freebsd64 107 - linux-arm 108 - linux-arm64 109 - linux32 110 - linux64 111 - netbsd32 112 - netbsd64 113 - openbsd32 114 - openbsd64 115 - osx 116 - win32 117 - win64 118 " 119 exit 1 120 fi 121 122 # get latest tag version 123 TAG=$(githubLatestTag zyedidia/micro) 124 125 if command -v grep >/dev/null 2>&1 ; then 126 if ! echo "v$TAG" | grep -E '^v[0-9]+[.][0-9]+[.][0-9]+$' >/dev/null 2>&1 ; then 127 printError "Recieved an invalid tag and cannot be sure that the tag will not break this script." 128 echo "> $TAG" 1>&2 129 exit 1 130 fi 131 fi 132 133 # check if latestTag already installed 134 if [ $(command -v micro) ] && [ "$(micro -version | grep $TAG)" != "" ]; then exit; fi 135 136 # get file extension 137 if [ "${platform:-x}" = "win64" ] || [ "${platform:-x}" = "win32" ]; then 138 extension='zip' 139 else 140 extension='tar.gz' 141 fi 142 143 # if Musl libc; use the staticly-compiled versioon 144 if [ "${platform:-x}" = "linux64" ]; then 145 # Detect musl libc (source: https://stackoverflow.com/a/60471114) 146 libc=$(ldd /bin/ls | grep 'musl' | head -1 | cut -d ' ' -f1) 147 if [ -n "$libc" ]; then 148 platform='linux64-static' 149 fi 150 fi 151 152 # set GETMICRO_INSTALLDIR 153 GETMICRO_INSTALLDIR=/usr/local/bin 154 155 if [ -d "$1" ]; then GETMICRO_INSTALLDIR="$1"; fi 156 157 checkPermissions 158 159 echo "Detected platform: $platform" 160 echo "Latest Version: $TAG" 161 echo "Downloading https://github.com/zyedidia/micro/releases/download/v$TAG/micro-$TAG-$platform.$extension" 162 163 eval "$http 'https://github.com/zyedidia/micro/releases/download/v$TAG/micro-$TAG-$platform.$extension'" > "micro.$extension" 164 165 case "$extension" in 166 "zip") unzip -j "micro.$extension" -d "micro-$TAG" ;; 167 "tar.gz") tar -xvzf "micro.$extension" "micro-$TAG/micro" ;; 168 esac 169 170 mv "micro-$TAG/micro" ./micro 171 172 rm "micro.$extension" 173 rm -rf "micro-$TAG" 174 175 mv ./micro $GETMICRO_INSTALLDIR/micro 176 177 echo "Micro has been installed successfully."