#!/bin/sh # GLOBALS # Colors RED='\033[31m' GREEN='\033[32m' DEFAULT='\033[0m' # Project name PNAME='meilisearch' # Version regexp i.e. v[number].[number].[number] GREP_SEMVER_REGEXP='v\([0-9]*\)[.]\([0-9]*\)[.]\([0-9]*\)$' # GitHub API address GITHUB_API='https://api.github.com/repos/meilisearch/meilisearch/releases' # GitHub Release address GITHUB_REL='https://github.com/meilisearch/meilisearch/releases/download/' # FUNCTIONS # semverParseInto and semverLT from: https://github.com/cloudflare/semver_bash/blob/master/semver.sh # usage: semverParseInto version major minor patch special # version: the string version # major, minor, patch, special: will be assigned by the function semverParseInto() { local RE='[^0-9]*\([0-9]*\)[.]\([0-9]*\)[.]\([0-9]*\)\([0-9A-Za-z-]*\)' # MAJOR eval $2=`echo $1 | sed -e "s#$RE#\1#"` # MINOR eval $3=`echo $1 | sed -e "s#$RE#\2#"` # PATCH eval $4=`echo $1 | sed -e "s#$RE#\3#"` # SPECIAL eval $5=`echo $1 | sed -e "s#$RE#\4#"` } # usage: semverLT version1 version2 semverLT() { local MAJOR_A=0 local MINOR_A=0 local PATCH_A=0 local SPECIAL_A=0 local MAJOR_B=0 local MINOR_B=0 local PATCH_B=0 local SPECIAL_B=0 semverParseInto $1 MAJOR_A MINOR_A PATCH_A SPECIAL_A semverParseInto $2 MAJOR_B MINOR_B PATCH_B SPECIAL_B if [ $MAJOR_A -lt $MAJOR_B ]; then return 0 fi if [ $MAJOR_A -le $MAJOR_B ] && [ $MINOR_A -lt $MINOR_B ]; then return 0 fi if [ $MAJOR_A -le $MAJOR_B ] && [ $MINOR_A -le $MINOR_B ] && [ $PATCH_A -lt $PATCH_B ]; then return 0 fi if [ "_$SPECIAL_A" == '_' ] && [ "_$SPECIAL_B" == '_' ] ; then return 1 fi if [ "_$SPECIAL_A" == '_' ] && [ "_$SPECIAL_B" != '_' ] ; then return 1 fi if [ "_$SPECIAL_A" != '_' ] && [ "_$SPECIAL_B" == '_' ] ; then return 0 fi if [ "_$SPECIAL_A" < "_$SPECIAL_B" ]; then return 0 fi return 1 } # Get a token from: https://github.com/settings/tokens to increase rate limit (from 60 to 5000), # make sure the token scope is set to 'public_repo'. # Create GITHUB_PAT environment variable once you acquired the token to start using it. # Returns the tag of the latest stable release (in terms of semver and not of release date). get_latest() { # temp_file is needed because the grep would start before the download is over temp_file=$(mktemp -q /tmp/$PNAME.XXXXXXXXX) if [ $? -ne 0 ]; then echo "$0: Can't create temp file, bye bye.." exit 1 fi if [ -z "$GITHUB_PAT" ]; then curl -s $GITHUB_API > "$temp_file" || return 1 else curl -H "Authorization: token $GITHUB_PAT" -s $GITHUB_API > "$temp_file" || return 1 fi releases=$(cat "$temp_file" | \ grep -E '"tag_name":|"draft":|"prerelease":' \ | tr -d ',"' | cut -d ':' -f2 | tr -d ' ') # Returns a list of [tag_name draft_boolean prerelease_boolean ...] # Ex: v0.10.1 false false v0.9.1-rc.1 false true v0.9.0 false false... i=0 latest='' current_tag='' for release_info in $releases; do # Checking tag_name if [ $i -eq 0 ]; then # If it's not an alpha or beta release if echo "$release_info" | grep -q "$GREP_SEMVER_REGEXP"; then current_tag=$release_info else current_tag='' fi i=1 # Checking draft boolean elif [ $i -eq 1 ]; then if [ "$release_info" = 'true' ]; then current_tag='' fi i=2 # Checking prerelease boolean elif [ $i -eq 2 ]; then if [ "$release_info" = 'true' ]; then current_tag='' fi i=0 # If the current_tag is valid if [ "$current_tag" != '' ]; then # If there is no latest yes if [ "$latest" = '' ]; then latest="$current_tag" else # Comparing latest and the current tag semverLT $current_tag $latest if [ $? -eq 1 ]; then latest="$current_tag" fi fi fi fi done rm -f "$temp_file" return 0 } # Gets the OS by setting the $os variable. # Returns 0 in case of success, 1 otherwise. get_os() { os_name=$(uname -s) case "$os_name" in 'Darwin') os='macos' ;; 'Linux') os='linux' ;; 'MINGW'*) os='windows' ;; *) return 1 esac return 0 } # Gets the architecture by setting the $archi variable. # Returns 0 in case of success, 1 otherwise. get_archi() { architecture=$(uname -m) case "$architecture" in 'x86_64' | 'amd64' ) archi='amd64' ;; 'arm64') # MacOS M1 if [ $os = 'macos' ]; then archi='amd64' else archi='aarch64' fi ;; 'aarch64') archi='aarch64' ;; *) return 1 esac return 0 } success_usage() { printf "$GREEN%s\n$DEFAULT" "Meilisearch $latest binary successfully downloaded as '$binary_name' file." echo '' echo 'Run it:' echo " $ ./$PNAME" echo 'Usage:' echo " $ ./$PNAME --help" } not_available_failure_usage() { printf "$RED%s\n$DEFAULT" 'ERROR: Meilisearch binary is not available for your OS distribution or your architecture yet.' echo '' echo 'However, you can easily compile the binary from the source files.' echo 'Follow the steps at the page ("Source" tab): https://docs.meilisearch.com/learn/getting_started/installation.html' } fetch_release_failure_usage() { echo '' printf "$RED%s\n$DEFAULT" 'ERROR: Impossible to get the latest stable version of Meilisearch.' echo 'Please let us know about this issue: https://github.com/meilisearch/meilisearch/issues/new/choose' } fill_release_variables() { # Fill $latest variable. if ! get_latest; then # TO CHANGE. fetch_release_failure_usage exit 1 fi if [ "$latest" = '' ]; then fetch_release_failure_usage exit 1 fi # Fill $os variable. if ! get_os; then not_available_failure_usage exit 1 fi # Fill $archi variable. if ! get_archi; then not_available_failure_usage exit 1 fi } download_binary() { fill_release_variables echo "Downloading Meilisearch binary $latest for $os, architecture $archi..." case "$os" in 'windows') release_file="$PNAME-$os-$archi.exe" binary_name="$PNAME.exe" ;; *) release_file="$PNAME-$os-$archi" binary_name="$PNAME" esac # Fetch the Meilisearch binary. curl --fail -OL "$GITHUB_REL/$latest/$release_file" if [ $? -ne 0 ]; then fetch_release_failure_usage exit 1 fi mv "$release_file" "$binary_name" chmod 744 "$binary_name" success_usage } # MAIN main() { download_binary } main